DependenceAnalysis: Print all dependency pairs when dumping. Update all testcases.

Part of a patch by Preston Briggs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167827 91177308-0d34-0410-b5e6-96231b3b80d8

15 files changed, 2559 insertions, 1346 deletions

diff --git a/test/Analysis/DependenceAnalysis/Banerjee.ll b/test/Analysis/DependenceAnalysis/Banerjee.ll
index 8865ee9..d498ee3 100644
--- a/test/Analysis/DependenceAnalysis/Banerjee.ll
+++ b/test/Analysis/DependenceAnalysis/Banerjee.ll
@@ -7,13 +7,20 @@ target triple = "x86_64-apple-macosx10.6.0"
 
 ;;  for (long int i = 1; i <= 10; i++)
 ;;    for (long int j = 1; j <= 10; j++) {
-;;      A[10*i + j] = ...
-;;      ... = A[10*i + j - 1];
+;;      A[10*i + j] = 0;
+;;      *B++ = A[10*i + j - 1];
 
 define void @banerjee0(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - flow [<= <>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc7
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
   %i.03 = phi i64 [ 1, %entry ], [ %inc8, %for.inc7 ]
@@ -31,7 +38,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %sub = add nsw i64 %add5, -1
   %arrayidx6 = getelementptr inbounds i64* %A, i64 %sub
   %0 = load i64* %arrayidx6, align 8
-; CHECK: da analyze - flow [<= <>]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %0, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -51,14 +57,21 @@ for.end9:                                         ; preds = %for.inc7
 
 ;;  for (long int i = 1; i <= n; i++)
 ;;    for (long int j = 1; j <= m; j++) {
-;;      A[10*i + j] = ...
-;;      ... = A[10*i + j - 1];
+;;      A[10*i + j] = 0;
+;;      *B++ = A[10*i + j - 1];
 
 define void @banerjee1(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp4 = icmp sgt i64 %n, 0
   br i1 %cmp4, label %for.cond1.preheader.preheader, label %for.end9
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - flow [* <>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader.preheader:                    ; preds = %entry
   %0 = add i64 %n, 1
   br label %for.cond1.preheader
@@ -85,7 +98,6 @@ for.body3:                                        ; preds = %for.body3.preheader
   %sub = add nsw i64 %add5, -1
   %arrayidx6 = getelementptr inbounds i64* %A, i64 %sub
   %2 = load i64* %arrayidx6, align 8
-; CHECK: da analyze - flow [* <>]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.12, i64 1
   store i64 %2, i64* %B.addr.12, align 8
   %inc = add nsw i64 %j.03, 1
@@ -119,6 +131,13 @@ define void @banerjee2(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc8
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ]
@@ -136,7 +155,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add6 = add nsw i64 %add5, 100
   %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6
   %0 = load i64* %arrayidx7, align 8
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %0, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -156,13 +174,20 @@ for.end10:                                        ; preds = %for.inc8
 
 ;;  for (long int i = 0; i < 10; i++)
 ;;    for (long int j = 0; j < 10; j++) {
-;;      A[10*i + j] = ...
-;;      ... = A[10*i + j + 99];
+;;      A[10*i + j] = 0;
+;;      *B++ = A[10*i + j + 99];
 
 define void @banerjee3(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - flow [> >]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc8
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ]
@@ -180,7 +205,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add6 = add nsw i64 %add5, 99
   %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6
   %0 = load i64* %arrayidx7, align 8
-; CHECK: da analyze - flow [> >]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %0, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -200,13 +224,20 @@ for.end10:                                        ; preds = %for.inc8
 
 ;;  for (long int i = 0; i < 10; i++)
 ;;    for (long int j = 0; j < 10; j++) {
-;;      A[10*i + j] = ...
-;;      ... = A[10*i + j - 100];
+;;      A[10*i + j] = 0;
+;;      *B++ = A[10*i + j - 100];
 
 define void @banerjee4(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc7
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ]
@@ -224,7 +255,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %sub = add nsw i64 %add5, -100
   %arrayidx6 = getelementptr inbounds i64* %A, i64 %sub
   %0 = load i64* %arrayidx6, align 8
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %0, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -244,13 +274,20 @@ for.end9:                                         ; preds = %for.inc7
 
 ;;  for (long int i = 0; i < 10; i++)
 ;;    for (long int j = 0; j < 10; j++) {
-;;      A[10*i + j] = ...
-;;      ... = A[10*i + j - 99];
+;;      A[10*i + j] = 0;
+;;      *B++ = A[10*i + j - 99];
 
 define void @banerjee5(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - flow [< <]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc7
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ]
@@ -268,7 +305,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %sub = add nsw i64 %add5, -99
   %arrayidx6 = getelementptr inbounds i64* %A, i64 %sub
   %0 = load i64* %arrayidx6, align 8
-; CHECK: da analyze - flow [< <]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %0, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -288,13 +324,20 @@ for.end9:                                         ; preds = %for.inc7
 
 ;;  for (long int i = 0; i < 10; i++)
 ;;    for (long int j = 0; j < 10; j++) {
-;;      A[10*i + j] = ...
-;;      ... = A[10*i + j + 9];
+;;      A[10*i + j] = 0;
+;;      *B++ = A[10*i + j + 9];
 
 define void @banerjee6(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - flow [=> <>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc8
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ]
@@ -312,7 +355,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add6 = add nsw i64 %add5, 9
   %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6
   %0 = load i64* %arrayidx7, align 8
-; CHECK: da analyze - flow [=> <>]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %0, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -332,13 +374,20 @@ for.end10:                                        ; preds = %for.inc8
 
 ;;  for (long int i = 0; i < 10; i++)
 ;;    for (long int j = 0; j < 10; j++) {
-;;      A[10*i + j] = ...
-;;      ... = A[10*i + j + 10];
+;;      A[10*i + j] = 0;
+;;      *B++ = A[10*i + j + 10];
 
 define void @banerjee7(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - flow [> <=]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc8
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ]
@@ -356,7 +405,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add6 = add nsw i64 %add5, 10
   %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6
   %0 = load i64* %arrayidx7, align 8
-; CHECK: da analyze - flow [> <=]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %0, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -376,13 +424,20 @@ for.end10:                                        ; preds = %for.inc8
 
 ;;  for (long int i = 0; i < 10; i++)
 ;;    for (long int j = 0; j < 10; j++) {
-;;      A[10*i + j] = ...
-;;      ... = A[10*i + j + 11];
+;;      A[10*i + j] = 0;
+;;      *B++ = A[10*i + j + 11];
 
 define void @banerjee8(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - flow [> <>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc8
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ]
@@ -400,7 +455,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add6 = add nsw i64 %add5, 11
   %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6
   %0 = load i64* %arrayidx7, align 8
-; CHECK: da analyze - flow [> <>]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %0, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -420,13 +474,20 @@ for.end10:                                        ; preds = %for.inc8
 
 ;;  for (long int i = 0; i < 20; i++)
 ;;    for (long int j = 0; j < 20; j++) {
-;;      A[30*i + 500*j] = ...
-;;      ... = A[i - 500*j + 11];
+;;      A[30*i + 500*j] = 0;
+;;      *B++ = A[i - 500*j + 11];
 
 define void @banerjee9(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - flow [<= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc8
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc8 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ]
@@ -445,7 +506,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add6 = add nsw i64 %sub, 11
   %arrayidx7 = getelementptr inbounds i64* %A, i64 %add6
   %1 = load i64* %arrayidx7, align 8
-; CHECK: da analyze - flow [<= =|<]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %1, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -465,13 +525,20 @@ for.end10:                                        ; preds = %for.inc8
 
 ;;  for (long int i = 0; i < 20; i++)
 ;;    for (long int j = 0; j < 20; j++) {
-;;      A[i + 500*j] = ...
-;;      ... = A[i - 500*j + 11];
+;;      A[i + 500*j] = 0;
+;;      *B++ = A[i - 500*j + 11];
 
 define void @banerjee10(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - flow [<> =]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc7
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ]
@@ -489,7 +556,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add5 = add nsw i64 %sub, 11
   %arrayidx6 = getelementptr inbounds i64* %A, i64 %add5
   %1 = load i64* %arrayidx6, align 8
-; CHECK: da analyze - flow [<> =]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %1, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -509,13 +575,20 @@ for.end9:                                         ; preds = %for.inc7
 
 ;;  for (long int i = 0; i < 20; i++)
 ;;    for (long int j = 0; j < 20; j++) {
-;;      A[300*i + j] = ...
-;;      ... = A[250*i - j + 11];
+;;      A[300*i + j] = 0;
+;;      *B++ = A[250*i - j + 11];
 
 define void @banerjee11(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - flow [<= <>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc7
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ]
@@ -533,7 +606,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add5 = add nsw i64 %sub, 11
   %arrayidx6 = getelementptr inbounds i64* %A, i64 %add5
   %0 = load i64* %arrayidx6, align 8
-; CHECK: da analyze - flow [<= <>]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %0, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
@@ -553,13 +625,20 @@ for.end9:                                         ; preds = %for.inc7
 
 ;;  for (long int i = 0; i < 20; i++)
 ;;    for (long int j = 0; j < 20; j++) {
-;;      A[100*i + j] = ...
-;;      ... = A[100*i - j + 11];
+;;      A[100*i + j] = 0;
+;;      *B++ = A[100*i - j + 11];
 
 define void @banerjee12(i64* %A, i64* %B, i64 %m, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - flow [= <>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [= =|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc7
   %B.addr.04 = phi i64* [ %B, %entry ], [ %scevgep, %for.inc7 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ]
@@ -577,7 +656,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add5 = add nsw i64 %sub, 11
   %arrayidx6 = getelementptr inbounds i64* %A, i64 %add5
   %0 = load i64* %arrayidx6, align 8
-; CHECK: da analyze - flow [= <>]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.11, i64 1
   store i64 %0, i64* %B.addr.11, align 8
   %inc = add nsw i64 %j.02, 1
diff --git a/test/Analysis/DependenceAnalysis/Coupled.ll b/test/Analysis/DependenceAnalysis/Coupled.ll
index 60163fe..6bf2866 100644
--- a/test/Analysis/DependenceAnalysis/Coupled.ll
+++ b/test/Analysis/DependenceAnalysis/Coupled.ll
@@ -5,15 +5,22 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3
 target triple = "x86_64-apple-macosx10.6.0"
 
 
-;; for (long int i = 0; i < 50; i++)
-;;   A[i][i] = ...
-;;   ... = A[i + 10][i + 9]
+;;  for (long int i = 0; i < 50; i++) {
+;;    A[i][i] = i;
+;;    *B++ = A[i + 10][i + 9];
 
 define void @couple0([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -23,27 +30,33 @@ for.body:                                         ; preds = %for.body, %entry
   %add2 = add nsw i64 %i.02, 10
   %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %add2, i64 %add
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 50
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i < 50; i++)
-;;   A[i][i] = ...
-;;   ... = A[i + 9][i + 9]
+;;  for (long int i = 0; i < 50; i++) {
+;;    A[i][i] = i;
+;;    *B++ = A[i + 9][i + 9];
 
 define void @couple1([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - consistent flow [-9]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -53,27 +66,33 @@ for.body:                                         ; preds = %for.body, %entry
   %add2 = add nsw i64 %i.02, 9
   %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %add2, i64 %add
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - consistent flow [-9]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 50
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i < 50; i++)
-;;   A[3*i - 6][3*i - 6] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i < 50; i++) {
+;;    A[3*i - 6][3*i - 6] = i;
+;;    *B++ = A[i][i];
 
 define void @couple2([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [*|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -85,27 +104,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx3, align 4
   %arrayidx5 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - flow [*|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 50
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i < 50; i++)
-;;   A[3*i - 6][3*i - 5] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i < 50; i++) {
+;;    A[3*i - 6][3*i - 5] = i;
+;;    *B++ = A[i][i];
 
 define void @couple3([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -117,27 +142,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx3, align 4
   %arrayidx5 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 50
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i < 50; i++)
-;;   A[3*i - 6][3*i - n] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i < 50; i++) {
+;;    A[3*i - 6][3*i - n] = i;
+;;    *B++ = A[i][i];
 
 define void @couple4([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [*|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -150,27 +181,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx4, align 4
   %arrayidx6 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx6, align 4
-; CHECK: da analyze - flow [*|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 50
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i < 50; i++)
-;;   A[3*i - n + 1][3*i - n] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i < 50; i++) {
+;;    A[3*i - n + 1][3*i - n] = i;
+;;    *B++ = A[i][i];
 
 define void @couple5([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -185,27 +222,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx5, align 4
   %arrayidx7 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx7, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 50
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i < 50; i++)
-;;   A[i][3*i - 6] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i < 50; i++) {
+;;    A[i][3*i - 6] = i;
+;;    *B++ = A[i][i];
 
 define void @couple6([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [=|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -215,27 +258,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx1, align 4
   %arrayidx3 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx3, align 4
-; CHECK: da analyze - flow [=|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 50
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i < 50; i++)
-;;   A[i][3*i - 5] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i < 50; i++) {
+;;    A[i][3*i - 5] = i;
+;;    *B++ = A[i][i];
 
 define void @couple7([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -245,27 +294,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx1, align 4
   %arrayidx3 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx3, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 50
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i <= 15; i++)
-;;   A[3*i - 18][3 - i] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i <= 15; i++) {
+;;    A[3*i - 18][3 - i] = i;
+;;    *B++ = A[i][i];
 
 define void @couple8([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -276,27 +331,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx2, align 4
   %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 16
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 16
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i <= 15; i++)
-;;   A[3*i - 18][2 - i] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i <= 15; i++) {
+;;    A[3*i - 18][2 - i] = i;
+;;    *B++ = A[i][i];
 
 define void @couple9([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -307,27 +368,34 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx2, align 4
   %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 16
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 16
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i <= 15; i++)
-;;   A[3*i - 18][6 - i] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i <= 15; i++) {
+;;    A[3*i - 18][6 - i] = i;
+;;    *B++ = A[i][i];
 
 define void @couple10([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [>] splitable!
+; CHECK: da analyze - split level = 1, iteration = 3!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -338,28 +406,34 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx2, align 4
   %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - flow [>] splitable!
-; CHECK: da analyze - split level = 1, iteration = 3!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 16
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 16
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i <= 15; i++)
-;;   A[3*i - 18][18 - i] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i <= 15; i++) {
+;;    A[3*i - 18][18 - i] = i;
+;;    *B++ = A[i][i];
 
 define void @couple11([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [=|<] splitable!
+; CHECK: da analyze - split level = 1, iteration = 9!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -370,28 +444,34 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx2, align 4
   %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - flow [=|<] splitable!
-; CHECK: da analyze - split level = 1, iteration = 9!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 16
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 16
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i <= 12; i++)
-;;   A[3*i - 18][22 - i] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i <= 12; i++) {
+;;    A[3*i - 18][22 - i] = i;
+;;    *B++ = A[i][i];
 
 define void @couple12([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [<] splitable!
+; CHECK: da analyze - split level = 1, iteration = 11!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -402,28 +482,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx2, align 4
   %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - flow [<] splitable!
-; CHECK: da analyze - split level = 1, iteration = 11!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 13
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 13
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i < 12; i++)
-;;   A[3*i - 18][22 - i] = ...
-;;   ... = A[i][i]
+;;  for (long int i = 0; i < 12; i++) {
+;;    A[3*i - 18][22 - i] = i;
+;;    *B++ = A[i][i];
 
 define void @couple13([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -434,27 +519,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx2, align 4
   %arrayidx4 = getelementptr inbounds [100 x i32]* %A, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 12
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 12
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
-
-;; for (long int i = 0; i < 100; i++)
-;;   A[3*i - 18][18 - i][i] = ...
-;;   ... = A[i][i][i]
+;;  for (long int i = 0; i < 100; i++) {
+;;    A[3*i - 18][18 - i][i] = i;
+;;    *B++ = A[i][i][i];
 
 define void @couple14([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [=|<] splitable!
+; CHECK: da analyze - split level = 1, iteration = 9!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -465,28 +556,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx3, align 4
   %arrayidx6 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %i.02, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx6, align 4
-; CHECK: da analyze - flow [=|<] splitable!
-; CHECK: da analyze - split level = 1, iteration = 9!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 100
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;; for (long int i = 0; i < 100; i++)
-;;   A[3*i - 18][22 - i][i] = ...
-;;   ... = A[i][i][i]
+;;  for (long int i = 0; i < 100; i++) {
+;;    A[3*i - 18][22 - i][i] = i;
+;;    *B++ = A[i][i][i];
 
 define void @couple15([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -497,12 +593,11 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx3, align 4
   %arrayidx6 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %i.02, i64 %i.02, i64 %i.02
   %0 = load i32* %arrayidx6, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add nsw i64 %i.02, 1
-  %cmp = icmp slt i64 %inc, 100
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
diff --git a/test/Analysis/DependenceAnalysis/ExactRDIV.ll b/test/Analysis/DependenceAnalysis/ExactRDIV.ll
index aa5d254..3174a27 100644
--- a/test/Analysis/DependenceAnalysis/ExactRDIV.ll
+++ b/test/Analysis/DependenceAnalysis/ExactRDIV.ll
@@ -6,15 +6,22 @@ target triple = "x86_64-apple-macosx10.6.0"
 
 
 ;;  for (long int i = 0; i < 10; i++)
-;;    A[4*i + 10] = ...
+;;    A[4*i + 10] = i;
 ;;  for (long int j = 0; j < 10; j++)
-;;    ... = A[2*j + 1];
+;;    *B++ = A[2*j + 1];
 
 define void @rdiv0(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %conv = trunc i64 %i.03 to i32
   %mul = shl nsw i64 %i.03, 2
@@ -22,22 +29,24 @@ for.body:                                         ; preds = %for.body, %entry
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc, 10
-  br i1 %cmp, label %for.body, label %for.body4
+  %exitcond5 = icmp ne i64 %inc, 10
+  br i1 %exitcond5, label %for.body, label %for.body4.preheader
 
-for.body4:                                        ; preds = %for.body4, %for.body
-  %j.02 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body ]
-  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ]
+for.body4.preheader:                              ; preds = %for.body
+  br label %for.body4
+
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.02 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %mul5 = shl nsw i64 %j.02, 1
   %add64 = or i64 %mul5, 1
   %arrayidx7 = getelementptr inbounds i32* %A, i64 %add64
   %0 = load i32* %arrayidx7, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc9 = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc9, 10
-  br i1 %cmp2, label %for.body4, label %for.end10
+  %exitcond = icmp ne i64 %inc9, 10
+  br i1 %exitcond, label %for.body4, label %for.end10
 
 for.end10:                                        ; preds = %for.body4
   ret void
@@ -45,15 +54,22 @@ for.end10:                                        ; preds = %for.body4
 
 
 ;;  for (long int i = 0; i < 5; i++)
-;;    A[11*i - 45] = ...
+;;    A[11*i - 45] = i;
 ;;  for (long int j = 0; j < 10; j++)
-;;    ... = A[j];
+;;    *B++ = A[j];
 
 define void @rdiv1(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, 11
@@ -61,20 +77,22 @@ for.body:                                         ; preds = %for.body, %entry
   %arrayidx = getelementptr inbounds i32* %A, i64 %sub
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc, 5
-  br i1 %cmp, label %for.body, label %for.body4
+  %exitcond4 = icmp ne i64 %inc, 5
+  br i1 %exitcond4, label %for.body, label %for.body4.preheader
+
+for.body4.preheader:                              ; preds = %for.body
+  br label %for.body4
 
-for.body4:                                        ; preds = %for.body4, %for.body
-  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ]
-  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ]
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc7 = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc7, 10
-  br i1 %cmp2, label %for.body4, label %for.end8
+  %exitcond = icmp ne i64 %inc7, 10
+  br i1 %exitcond, label %for.body4, label %for.end8
 
 for.end8:                                         ; preds = %for.body4
   ret void
@@ -82,15 +100,22 @@ for.end8:                                         ; preds = %for.body4
 
 
 ;;  for (long int i = 0; i <= 5; i++)
-;;    A[11*i - 45] = ...
+;;    A[11*i - 45] = i;
 ;;  for (long int j = 0; j < 10; j++)
-;;    ... = A[j];
+;;    *B++ = A[j];
 
 define void @rdiv2(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, 11
@@ -98,20 +123,22 @@ for.body:                                         ; preds = %for.body, %entry
   %arrayidx = getelementptr inbounds i32* %A, i64 %sub
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc, 6
-  br i1 %cmp, label %for.body, label %for.body4
+  %exitcond4 = icmp ne i64 %inc, 6
+  br i1 %exitcond4, label %for.body, label %for.body4.preheader
+
+for.body4.preheader:                              ; preds = %for.body
+  br label %for.body4
 
-for.body4:                                        ; preds = %for.body4, %for.body
-  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ]
-  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ]
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc7 = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc7, 10
-  br i1 %cmp2, label %for.body4, label %for.end8
+  %exitcond = icmp ne i64 %inc7, 10
+  br i1 %exitcond, label %for.body4, label %for.end8
 
 for.end8:                                         ; preds = %for.body4
   ret void
@@ -119,15 +146,22 @@ for.end8:                                         ; preds = %for.body4
 
 
 ;;  for (long int i = 0; i < 5; i++)
-;;    A[11*i - 45] = ...
+;;    A[11*i - 45] = i;
 ;;  for (long int j = 0; j <= 10; j++)
-;;    ... = A[j];
+;;    *B++ = A[j];
 
 define void @rdiv3(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, 11
@@ -135,20 +169,22 @@ for.body:                                         ; preds = %for.body, %entry
   %arrayidx = getelementptr inbounds i32* %A, i64 %sub
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc, 5
-  br i1 %cmp, label %for.body, label %for.body4
+  %exitcond4 = icmp ne i64 %inc, 5
+  br i1 %exitcond4, label %for.body, label %for.body4.preheader
 
-for.body4:                                        ; preds = %for.body4, %for.body
-  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ]
-  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ]
+for.body4.preheader:                              ; preds = %for.body
+  br label %for.body4
+
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc7 = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc7, 11
-  br i1 %cmp2, label %for.body4, label %for.end8
+  %exitcond = icmp ne i64 %inc7, 11
+  br i1 %exitcond, label %for.body4, label %for.end8
 
 for.end8:                                         ; preds = %for.body4
   ret void
@@ -156,15 +192,22 @@ for.end8:                                         ; preds = %for.body4
 
 
 ;;  for (long int i = 0; i <= 5; i++)
-;;    A[11*i - 45] = ...
+;;    A[11*i - 45] = i;
 ;;  for (long int j = 0; j <= 10; j++)
-;;    ... = A[j];
+;;    *B++ = A[j];
 
 define void @rdiv4(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, 11
@@ -172,20 +215,22 @@ for.body:                                         ; preds = %for.body, %entry
   %arrayidx = getelementptr inbounds i32* %A, i64 %sub
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc, 6
-  br i1 %cmp, label %for.body, label %for.body4
+  %exitcond4 = icmp ne i64 %inc, 6
+  br i1 %exitcond4, label %for.body, label %for.body4.preheader
 
-for.body4:                                        ; preds = %for.body4, %for.body
-  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ]
-  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ]
+for.body4.preheader:                              ; preds = %for.body
+  br label %for.body4
+
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %j.02
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - flow!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc7 = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc7, 11
-  br i1 %cmp2, label %for.body4, label %for.end8
+  %exitcond = icmp ne i64 %inc7, 11
+  br i1 %exitcond, label %for.body4, label %for.end8
 
 for.end8:                                         ; preds = %for.body4
   ret void
@@ -193,15 +238,22 @@ for.end8:                                         ; preds = %for.body4
 
 
 ;;  for (long int i = 0; i < 5; i++)
-;;    A[-11*i + 45] = ...
+;;    A[-11*i + 45] = i;
 ;;  for (long int j = 0; j < 10; j++)
-;;    ... = A[-j];
+;;    *B++ = A[-j];
 
 define void @rdiv5(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, -11
@@ -209,21 +261,23 @@ for.body:                                         ; preds = %for.body, %entry
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc, 5
-  br i1 %cmp, label %for.body, label %for.body4
+  %exitcond4 = icmp ne i64 %inc, 5
+  br i1 %exitcond4, label %for.body, label %for.body4.preheader
+
+for.body4.preheader:                              ; preds = %for.body
+  br label %for.body4
 
-for.body4:                                        ; preds = %for.body4, %for.body
-  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ]
-  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ]
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %sub = sub nsw i64 0, %j.02
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc7 = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc7, 10
-  br i1 %cmp2, label %for.body4, label %for.end8
+  %exitcond = icmp ne i64 %inc7, 10
+  br i1 %exitcond, label %for.body4, label %for.end8
 
 for.end8:                                         ; preds = %for.body4
   ret void
@@ -231,15 +285,22 @@ for.end8:                                         ; preds = %for.body4
 
 
 ;;  for (long int i = 0; i <= 5; i++)
-;;    A[-11*i + 45] = ...
+;;    A[-11*i + 45] = i;
 ;;  for (long int j = 0; j < 10; j++)
-;;    ... = A[-j];
+;;    *B++ = A[-j];
 
 define void @rdiv6(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, -11
@@ -247,21 +308,23 @@ for.body:                                         ; preds = %for.body, %entry
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc, 6
-  br i1 %cmp, label %for.body, label %for.body4
+  %exitcond4 = icmp ne i64 %inc, 6
+  br i1 %exitcond4, label %for.body, label %for.body4.preheader
+
+for.body4.preheader:                              ; preds = %for.body
+  br label %for.body4
 
-for.body4:                                        ; preds = %for.body4, %for.body
-  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ]
-  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ]
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %sub = sub nsw i64 0, %j.02
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc7 = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc7, 10
-  br i1 %cmp2, label %for.body4, label %for.end8
+  %exitcond = icmp ne i64 %inc7, 10
+  br i1 %exitcond, label %for.body4, label %for.end8
 
 for.end8:                                         ; preds = %for.body4
   ret void
@@ -269,15 +332,22 @@ for.end8:                                         ; preds = %for.body4
 
 
 ;;  for (long int i = 0; i < 5; i++)
-;;    A[-11*i + 45] = ...
+;;    A[-11*i + 45] = i;
 ;;  for (long int j = 0; j <= 10; j++)
-;;    ... = A[-j];
+;;    *B++ = A[-j];
 
 define void @rdiv7(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, -11
@@ -285,21 +355,23 @@ for.body:                                         ; preds = %for.body, %entry
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc, 5
-  br i1 %cmp, label %for.body, label %for.body4
+  %exitcond4 = icmp ne i64 %inc, 5
+  br i1 %exitcond4, label %for.body, label %for.body4.preheader
 
-for.body4:                                        ; preds = %for.body4, %for.body
-  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ]
-  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ]
+for.body4.preheader:                              ; preds = %for.body
+  br label %for.body4
+
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %sub = sub nsw i64 0, %j.02
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc7 = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc7, 11
-  br i1 %cmp2, label %for.body4, label %for.end8
+  %exitcond = icmp ne i64 %inc7, 11
+  br i1 %exitcond, label %for.body4, label %for.end8
 
 for.end8:                                         ; preds = %for.body4
   ret void
@@ -307,15 +379,22 @@ for.end8:                                         ; preds = %for.body4
 
 
 ;;  for (long int i = 0; i <= 5; i++)
-;;    A[-11*i + 45] = ...
+;;    A[-11*i + 45] = i;
 ;;  for (long int j = 0; j <= 10; j++)
-;;    ... = A[-j];
+;;    *B++ = A[-j];
 
 define void @rdiv8(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.03 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, -11
@@ -323,21 +402,23 @@ for.body:                                         ; preds = %for.body, %entry
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc, 6
-  br i1 %cmp, label %for.body, label %for.body4
+  %exitcond4 = icmp ne i64 %inc, 6
+  br i1 %exitcond4, label %for.body, label %for.body4.preheader
+
+for.body4.preheader:                              ; preds = %for.body
+  br label %for.body4
 
-for.body4:                                        ; preds = %for.body4, %for.body
-  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body ]
-  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body ]
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.02 = phi i64 [ %inc7, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.01 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %sub = sub nsw i64 0, %j.02
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - flow!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc7 = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc7, 11
-  br i1 %cmp2, label %for.body4, label %for.end8
+  %exitcond = icmp ne i64 %inc7, 11
+  br i1 %exitcond, label %for.body4, label %for.end8
 
 for.end8:                                         ; preds = %for.body4
   ret void
@@ -345,20 +426,27 @@ for.end8:                                         ; preds = %for.body4
 
 
 ;;  for (long int i = 0; i < 5; i++)
-;;    for (long int j = 0; j < 10; j++)
-;;      A[11*i - j] = ...
-;;      ... = A[45];
+;;    for (long int j = 0; j < 10; j++) {
+;;      A[11*i - j] = i;
+;;      *B++ = A[45];
 
 define void @rdiv9(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc5, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc5 ]
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc5
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -368,38 +456,46 @@ for.body3:                                        ; preds = %for.body3, %for.con
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx4 = getelementptr inbounds i32* %A, i64 45
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 10
-  br i1 %cmp2, label %for.body3, label %for.inc5
+  %exitcond = icmp ne i64 %inc, 10
+  br i1 %exitcond, label %for.body3, label %for.inc5
 
 for.inc5:                                         ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 10
   %inc6 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc6, 5
-  br i1 %cmp, label %for.cond1.preheader, label %for.end7
+  %exitcond5 = icmp ne i64 %inc6, 5
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end7
 
 for.end7:                                         ; preds = %for.inc5
   ret void
 }
 
 
-;;  for (long int i = 0; i < 5; i++)
-;;    for (long int j = 0; j <= 10; j++)
-;;      A[11*i - j] = ...
-;;      ... = A[45];
+
+;;  for (long int i = 0; i <= 5; i++)
+;;    for (long int j = 0; j < 10; j++) {
+;;      A[11*i - j] = i;
+;;      *B++ = A[45];
 
 define void @rdiv10(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc5, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc5 ]
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc5
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -409,38 +505,45 @@ for.body3:                                        ; preds = %for.body3, %for.con
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx4 = getelementptr inbounds i32* %A, i64 45
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 10
-  br i1 %cmp2, label %for.body3, label %for.inc5
+  %exitcond = icmp ne i64 %inc, 10
+  br i1 %exitcond, label %for.body3, label %for.inc5
 
 for.inc5:                                         ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 10
   %inc6 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc6, 6
-  br i1 %cmp, label %for.cond1.preheader, label %for.end7
+  %exitcond5 = icmp ne i64 %inc6, 6
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end7
 
 for.end7:                                         ; preds = %for.inc5
   ret void
 }
 
 
-;;  for (long int i = 0; i <= 5; i++)
-;;    for (long int j = 0; j <= 10; j++)
-;;      A[11*i - j] = ...
-;;      ... = A[45];
+;;  for (long int i = 0; i < 5; i++)
+;;    for (long int j = 0; j <= 10; j++) {
+;;      A[11*i - j] = i;
+;;      *B++ = A[45];
 
 define void @rdiv11(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc5, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc5 ]
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc5
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -450,38 +553,45 @@ for.body3:                                        ; preds = %for.body3, %for.con
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx4 = getelementptr inbounds i32* %A, i64 45
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 11
-  br i1 %cmp2, label %for.body3, label %for.inc5
+  %exitcond = icmp ne i64 %inc, 11
+  br i1 %exitcond, label %for.body3, label %for.inc5
 
 for.inc5:                                         ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 11
   %inc6 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc6, 5
-  br i1 %cmp, label %for.cond1.preheader, label %for.end7
+  %exitcond5 = icmp ne i64 %inc6, 5
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end7
 
 for.end7:                                         ; preds = %for.inc5
   ret void
 }
 
 
-;;  for (long int i = 0; i < 5; i++)
-;;    for (long int j = 0; j < 10; j++)
-;;      A[11*i - j] = ...
-;;      ... = A[45];
+;;  for (long int i = 0; i <= 5; i++)
+;;    for (long int j = 0; j <= 10; j++) {
+;;      A[11*i - j] = i;
+;;      *B++ = A[45];
 
 define void @rdiv12(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc5, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc5 ]
+; CHECK: da analyze - output [= =|<]!
+; CHECK: da analyze - flow [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc5
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc5 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -491,17 +601,17 @@ for.body3:                                        ; preds = %for.body3, %for.con
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx4 = getelementptr inbounds i32* %A, i64 45
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - flow [* *|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 11
-  br i1 %cmp2, label %for.body3, label %for.inc5
+  %exitcond = icmp ne i64 %inc, 11
+  br i1 %exitcond, label %for.body3, label %for.inc5
 
 for.inc5:                                         ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 11
   %inc6 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc6, 6
-  br i1 %cmp, label %for.cond1.preheader, label %for.end7
+  %exitcond5 = icmp ne i64 %inc6, 6
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end7
 
 for.end7:                                         ; preds = %for.inc5
   ret void
diff --git a/test/Analysis/DependenceAnalysis/ExactSIV.ll b/test/Analysis/DependenceAnalysis/ExactSIV.ll
index 71e0502..9d9dcdd 100644
--- a/test/Analysis/DependenceAnalysis/ExactSIV.ll
+++ b/test/Analysis/DependenceAnalysis/ExactSIV.ll
@@ -6,14 +6,21 @@ target triple = "x86_64-apple-macosx10.6.0"
 
 
 ;;  for (long unsigned i = 0; i < 10; i++) {
-;;    A[i + 10] = ...
-;;    ... = A[2*i + 1];
+;;    A[i + 10] = i;
+;;    *B++ = A[2*i + 1];
 
 define void @exact0(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [<=|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -24,12 +31,11 @@ for.body:                                         ; preds = %for.body, %entry
   %add13 = or i64 %mul, 1
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %add13
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - flow [<=|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 10
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 10
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -37,14 +43,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i < 10; i++) {
-;;    A[4*i + 10] = ...
-;;    ... = A[2*i + 1];
+;;    A[4*i + 10] = i;
+;;    *B++ = A[2*i + 1];
 
 define void @exact1(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -56,12 +69,11 @@ for.body:                                         ; preds = %for.body, %entry
   %add23 = or i64 %mul1, 1
   %arrayidx3 = getelementptr inbounds i32* %A, i64 %add23
   %0 = load i32* %arrayidx3, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 10
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 10
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -69,14 +81,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i < 10; i++) {
-;;    A[6*i] = ...
-;;    ... = A[i + 60];
+;;    A[6*i] = i;
+;;    *B++ = A[i + 60];
 
 define void @exact2(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -86,12 +105,11 @@ for.body:                                         ; preds = %for.body, %entry
   %add = add i64 %i.02, 60
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 10
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 10
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -99,14 +117,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i <= 10; i++) {
-;;    A[6*i] = ...
-;;    ... = A[i + 60];
+;;    A[6*i] = i;
+;;    *B++ = A[i + 60];
 
 define void @exact3(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -116,12 +141,11 @@ for.body:                                         ; preds = %for.body, %entry
   %add = add i64 %i.02, 60
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [>]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 11
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 11
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -129,14 +153,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i < 12; i++) {
-;;    A[6*i] = ...
-;;    ... = A[i + 60];
+;;    A[6*i] = i;
+;;    *B++ = A[i + 60];
 
 define void @exact4(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -146,12 +177,11 @@ for.body:                                         ; preds = %for.body, %entry
   %add = add i64 %i.02, 60
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [>]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 12
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 12
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -159,14 +189,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i <= 12; i++) {
-;;    A[6*i] = ...
-;;    ... = A[i + 60];
+;;    A[6*i] = i;
+;;    *B++ = A[i + 60];
 
 define void @exact5(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [=>|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -176,12 +213,11 @@ for.body:                                         ; preds = %for.body, %entry
   %add = add i64 %i.02, 60
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [=>|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 13
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 13
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -189,14 +225,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i < 18; i++) {
-;;    A[6*i] = ...
-;;    ... = A[i + 60];
+;;    A[6*i] = i;
+;;    *B++ = A[i + 60];
 
 define void @exact6(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [=>|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -206,12 +249,11 @@ for.body:                                         ; preds = %for.body, %entry
   %add = add i64 %i.02, 60
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [=>|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 18
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 18
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -219,14 +261,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i <= 18; i++) {
-;;    A[6*i] = ...
-;;    ... = A[i + 60];
+;;    A[6*i] = i;
+;;    *B++ = A[i + 60];
 
 define void @exact7(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [*|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -236,12 +285,11 @@ for.body:                                         ; preds = %for.body, %entry
   %add = add i64 %i.02, 60
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [*|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 19
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 19
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -249,14 +297,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i < 10; i++) {
-;;    A[-6*i] = ...
-;;    ... = A[-i - 60];
+;;    A[-6*i] = i;
+;;    *B++ = A[-i - 60];
 
 define void @exact8(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -266,12 +321,11 @@ for.body:                                         ; preds = %for.body, %entry
   %sub1 = sub i64 -60, %i.02
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 10
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 10
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -279,14 +333,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i <= 10; i++) {
-;;    A[-6*i] = ...
-;;    ... = A[-i - 60];
+;;    A[-6*i] = i;
+;;    *B++ = A[-i - 60];
 
 define void @exact9(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -296,12 +357,11 @@ for.body:                                         ; preds = %for.body, %entry
   %sub1 = sub i64 -60, %i.02
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - flow [>]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 11
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 11
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -309,14 +369,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i < 12; i++) {
-;;    A[-6*i] = ...
-;;    ... = A[-i - 60];
+;;    A[-6*i] = i;
+;;    *B++ = A[-i - 60];
 
 define void @exact10(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -326,12 +393,11 @@ for.body:                                         ; preds = %for.body, %entry
   %sub1 = sub i64 -60, %i.02
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - flow [>]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 12
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 12
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -339,14 +405,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i <= 12; i++) {
-;;    A[-6*i] = ...
-;;    ... = A[-i - 60];
+;;    A[-6*i] = i;
+;;    *B++ = A[-i - 60];
 
 define void @exact11(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [=>|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -356,12 +429,11 @@ for.body:                                         ; preds = %for.body, %entry
   %sub1 = sub i64 -60, %i.02
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - flow [=>|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 13
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 13
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -369,14 +441,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i < 18; i++) {
-;;    A[-6*i] = ...
-;;    ... = A[-i - 60];
+;;    A[-6*i] = i;
+;;    *B++ = A[-i - 60];
 
 define void @exact12(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [=>|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -386,12 +465,11 @@ for.body:                                         ; preds = %for.body, %entry
   %sub1 = sub i64 -60, %i.02
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - flow [=>|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 18
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 18
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
@@ -399,14 +477,21 @@ for.end:                                          ; preds = %for.body
 
 
 ;;  for (long unsigned i = 0; i <= 18; i++) {
-;;    A[-6*i] = ...
-;;    ... = A[-i - 60];
+;;    A[-6*i] = i;
+;;    *B++ = A[-i - 60];
 
 define void @exact13(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [*|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -416,12 +501,11 @@ for.body:                                         ; preds = %for.body, %entry
   %sub1 = sub i64 -60, %i.02
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - flow [*|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 19
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 19
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
diff --git a/test/Analysis/DependenceAnalysis/GCD.ll b/test/Analysis/DependenceAnalysis/GCD.ll
index 94c93a8..a60c1bb 100644
--- a/test/Analysis/DependenceAnalysis/GCD.ll
+++ b/test/Analysis/DependenceAnalysis/GCD.ll
@@ -6,14 +6,21 @@ target triple = "x86_64-apple-macosx10.6.0"
 
 
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[2*i - 4*j] = ...
-;;      ... = A[6*i + 8*j];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[2*i - 4*j] = i;
+;;      *B++ = A[6*i + 8*j];
 
 define void @gcd0(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - flow [=> *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc8
   %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc8 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ]
@@ -33,7 +40,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add = add nsw i64 %mul5, %mul6
   %arrayidx7 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx7, align 4
-; CHECK: da analyze - flow [=> *|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
@@ -52,14 +58,21 @@ for.end10:                                        ; preds = %for.inc8
 
 
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[2*i - 4*j] = ...
-;;      ... = A[6*i + 8*j + 1];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[2*i - 4*j] = i;
+;;      *B++ = A[6*i + 8*j + 1];
 
 define void @gcd1(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc9
   %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc9 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc10, %for.inc9 ]
@@ -80,7 +93,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add7 = or i64 %add, 1
   %arrayidx8 = getelementptr inbounds i32* %A, i64 %add7
   %0 = load i32* %arrayidx8, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
@@ -99,14 +111,21 @@ for.end11:                                        ; preds = %for.inc9
 
 
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[2*i - 4*j + 1] = ...
-;;      ... = A[6*i + 8*j];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[2*i - 4*j + 1] = i;
+;;      *B++ = A[6*i + 8*j];
 
 define void @gcd2(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc9
   %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc9 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc10, %for.inc9 ]
@@ -127,7 +146,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add7 = add nsw i64 %mul5, %mul6
   %arrayidx8 = getelementptr inbounds i32* %A, i64 %add7
   %0 = load i32* %arrayidx8, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
@@ -146,14 +164,21 @@ for.end11:                                        ; preds = %for.inc9
 
 
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[i + 2*j] = ...
-;;      ... = A[i + 2*j - 1];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[i + 2*j] = i;
+;;      *B++ = A[i + 2*j - 1];
 
 define void @gcd3(i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - flow [<> *]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc7
   %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc7 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc8, %for.inc7 ]
@@ -172,7 +197,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %sub = add nsw i64 %add5, -1
   %arrayidx6 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx6, align 4
-; CHECK: da analyze - flow [<> *]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
@@ -190,16 +214,22 @@ for.end9:                                         ; preds = %for.inc7
 }
 
 
-;;  void gcd4(int *A, int *B, long int M, long int N) {
-;;    for (long int i = 0; i < 100; i++)
-;;      for (long int j = 0; j < 100; j++) {
-;;        A[5*i + 10*j*M + 9*M*N] = i;
-;;        *B++ = A[15*i + 20*j*M - 21*N*M + 4];
+;;  for (long int i = 0; i < 100; i++)
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[5*i + 10*j*M + 9*M*N] = i;
+;;      *B++ = A[15*i + 20*j*M - 21*N*M + 4];
 
 define void @gcd4(i32* %A, i32* %B, i64 %M, i64 %N) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc17
   %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc17 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc18, %for.inc17 ]
@@ -228,7 +258,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add15 = add nsw i64 %sub, 4
   %arrayidx16 = getelementptr inbounds i32* %A, i64 %add15
   %0 = load i32* %arrayidx16, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
@@ -246,16 +275,22 @@ for.end19:                                        ; preds = %for.inc17
 }
 
 
-;;  void gcd5(int *A, int *B, long int M, long int N) {
-;;    for (long int i = 0; i < 100; i++)
-;;      for (long int j = 0; j < 100; j++) {
-;;        A[5*i + 10*j*M + 9*M*N] = i;
-;;        *B++ = A[15*i + 20*j*M - 21*N*M + 5];
+;;  for (long int i = 0; i < 100; i++)
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[5*i + 10*j*M + 9*M*N] = i;
+;;      *B++ = A[15*i + 20*j*M - 21*N*M + 5];
 
 define void @gcd5(i32* %A, i32* %B, i64 %M, i64 %N) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - flow [<> *]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader:                              ; preds = %entry, %for.inc17
   %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc17 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc18, %for.inc17 ]
@@ -284,7 +319,6 @@ for.body3:                                        ; preds = %for.cond1.preheader
   %add15 = add nsw i64 %sub, 5
   %arrayidx16 = getelementptr inbounds i32* %A, i64 %add15
   %0 = load i32* %arrayidx16, align 4
-; CHECK: da analyze - flow [<> *]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
@@ -302,17 +336,23 @@ for.end19:                                        ; preds = %for.inc17
 }
 
 
-;;  void gcd6(long int n, int A[][n], int *B) {
-;;    for (long int i = 0; i < n; i++)
-;;      for (long int j = 0; j < n; j++) {
-;;        A[2*i][4*j] = i;
-;;        *B++ = A[8*i][6*j + 1];
+;;  for (long int i = 0; i < n; i++)
+;;    for (long int j = 0; j < n; j++) {
+;;      A[2*i][4*j] = i;
+;;      *B++ = A[8*i][6*j + 1];
 
 define void @gcd6(i64 %n, i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   %cmp4 = icmp sgt i64 %n, 0
   br i1 %cmp4, label %for.cond1.preheader.preheader, label %for.end12
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader.preheader:                    ; preds = %entry
   br label %for.cond1.preheader
 
@@ -342,7 +382,6 @@ for.body3:                                        ; preds = %for.body3.preheader
   %arrayidx8.sum = add i64 %1, %add7
   %arrayidx9 = getelementptr inbounds i32* %A, i64 %arrayidx8.sum
   %2 = load i32* %arrayidx9, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1
   store i32 %2, i32* %B.addr.12, align 4
   %inc = add nsw i64 %j.03, 1
@@ -367,11 +406,10 @@ for.end12:                                        ; preds = %for.end12.loopexit,
 }
 
 
-;;  void gcd7(int n, int A[][n], int *B) {
-;;    for (int i = 0; i < n; i++)
-;;      for (int j = 0; j < n; j++) {
-;;        A[2*i][4*j] = i;
-;;        *B++ = A[8*i][6*j + 1];
+;;  for (int i = 0; i < n; i++)
+;;   for (int j = 0; j < n; j++) {
+;;    A[2*i][4*j] = i;
+;;   *B++ = A[8*i][6*j + 1];
 
 define void @gcd7(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
@@ -379,6 +417,13 @@ entry:
   %cmp4 = icmp sgt i32 %n, 0
   br i1 %cmp4, label %for.cond1.preheader.preheader, label %for.end15
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - flow [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader.preheader:                    ; preds = %entry
   br label %for.cond1.preheader
 
@@ -419,7 +464,6 @@ for.body3:                                        ; preds = %for.body3.preheader
   %arrayidx11.sum = add i64 %10, %idxprom8
   %arrayidx12 = getelementptr inbounds i32* %A, i64 %arrayidx11.sum
   %11 = load i32* %arrayidx12, align 4
-; CHECK: da analyze - flow [* *|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1
   store i32 %11, i32* %B.addr.12, align 4
   %indvars.iv.next = add i64 %indvars.iv, 1
@@ -446,17 +490,23 @@ for.end15:                                        ; preds = %for.end15.loopexit,
 }
 
 
-;;  void gcd8(int n, int *A, int *B) {
-;;    for (int i = 0; i < n; i++)
-;;      for (int j = 0; j < n; j++) {
-;;        A[n*2*i + 4*j] = i;
-;;        *B++ = A[n*8*i + 6*j + 1];
+;;  for (int i = 0; i < n; i++)
+;;    for (int j = 0; j < n; j++) {
+;;      A[n*2*i + 4*j] = i;
+;;      *B++ = A[n*8*i + 6*j + 1];
 
 define void @gcd8(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   %cmp4 = icmp sgt i32 %n, 0
   br i1 %cmp4, label %for.cond1.preheader.preheader, label %for.end15
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader.preheader:                    ; preds = %entry
   br label %for.cond1.preheader
 
@@ -492,7 +542,6 @@ for.body3:                                        ; preds = %for.body3.preheader
   %idxprom11 = sext i32 %add10 to i64
   %arrayidx12 = getelementptr inbounds i32* %A, i64 %idxprom11
   %5 = load i32* %arrayidx12, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1
   store i32 %5, i32* %B.addr.12, align 4
   %indvars.iv.next = add i64 %indvars.iv, 1
@@ -518,11 +567,10 @@ for.end15:                                        ; preds = %for.end15.loopexit,
 }
 
 
-;;  void gcd9(unsigned n, int A[][n], int *B) {
-;;    for (unsigned i = 0; i < n; i++)
-;;      for (unsigned j = 0; j < n; j++) {
-;;        A[2*i][4*j] = i;
-;;        *B++ = A[8*i][6*j + 1];
+;;  for (unsigned i = 0; i < n; i++)
+;;    for (unsigned j = 0; j < n; j++) {
+;;      A[2*i][4*j] = i;
+;;      *B++ = A[8*i][6*j + 1];
 
 define void @gcd9(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
@@ -530,6 +578,13 @@ entry:
   %cmp4 = icmp eq i32 %n, 0
   br i1 %cmp4, label %for.end15, label %for.cond1.preheader.preheader
 
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - flow [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [* *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.cond1.preheader.preheader:                    ; preds = %entry
   br label %for.cond1.preheader
 
@@ -570,7 +625,6 @@ for.body3:                                        ; preds = %for.body3.preheader
   %arrayidx11.sum = add i64 %10, %idxprom8
   %arrayidx12 = getelementptr inbounds i32* %A, i64 %arrayidx11.sum
   %11 = load i32* %arrayidx12, align 4
-; CHECK: da analyze - flow [* *|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1
   store i32 %11, i32* %B.addr.12, align 4
   %indvars.iv.next = add i64 %indvars.iv, 1
diff --git a/test/Analysis/DependenceAnalysis/Preliminary.ll b/test/Analysis/DependenceAnalysis/Preliminary.ll
index 3ef63fd..c550158 100644
--- a/test/Analysis/DependenceAnalysis/Preliminary.ll
+++ b/test/Analysis/DependenceAnalysis/Preliminary.ll
@@ -1,111 +1,147 @@
-; RUN: opt < %s -analyze -basicaa -indvars -da | FileCheck %s
-
-; This series of tests is more interesting when debugging is enabled.
+; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
 
 ; ModuleID = 'Preliminary.bc'
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
 target triple = "x86_64-apple-macosx10.6.0"
 
 
-;; may alias
-;; int p0(int n, int *A, int *B) {
+;;int p0(int n, int *A, int *B) {
 ;;  A[0] = n;
 ;;  return B[1];
 
 define i32 @p0(i32 %n, i32* %A, i32* %B) nounwind uwtable ssp {
 entry:
   store i32 %n, i32* %A, align 4
+
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input!
+
   %arrayidx1 = getelementptr inbounds i32* %B, i64 1
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - confused!
   ret i32 %0
 }
 
 
-;; no alias
-;; int p1(int n, int *restrict A, int *restrict B) {
+;;int p1(int n, int *restrict A, int *restrict B) {
 ;;  A[0] = n;
 ;;  return B[1];
 
 define i32 @p1(i32 %n, i32* noalias %A, i32* noalias %B) nounwind uwtable ssp {
 entry:
   store i32 %n, i32* %A, align 4
+
+; CHECK: da analyze - confused!
+; CHECK: da analyze - none!
+; CHECK: da analyze - consistent input!
+
   %arrayidx1 = getelementptr inbounds i32* %B, i64 1
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   ret i32 %0
 }
 
-;; check loop nesting levels
-;;  for (long int i = 0; i < n; i++)
-;;    for (long int j = 0; j < n; j++)
-;;      for (long int k = 0; k < n; k++)
-;;        A[i][j][k] = ...
-;;      for (long int k = 0; k < n; k++)
-;;        ... = A[i + 3][j + 2][k + 1];
+
+;;  for (long int i = 0; i < n; i++) {
+;;    for (long int j = 0; j < n; j++) {
+;;      for (long int k = 0; k < n; k++) {
+;;        A[i][j][k] = i;
+;;      }
+;;      for (long int k = 0; k < n; k++) {
+;;        *B++ = A[i + 3][j + 2][k + 1];
 
 define void @p2(i64 %n, [100 x [100 x i64]]* %A, i64* %B) nounwind uwtable ssp {
 entry:
   %cmp10 = icmp sgt i64 %n, 0
-  br i1 %cmp10, label %for.cond1.preheader, label %for.end26
+  br i1 %cmp10, label %for.cond1.preheader.preheader, label %for.end26
+
+; CHECK: da analyze - consistent output [0 0 0|<]!
+; CHECK: da analyze - flow [-3 -2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
 
-for.cond1.preheader:                              ; preds = %for.inc24, %entry
-  %B.addr.012 = phi i64* [ %B.addr.1.lcssa, %for.inc24 ], [ %B, %entry ]
-  %i.011 = phi i64 [ %inc25, %for.inc24 ], [ 0, %entry ]
+for.cond1.preheader.preheader:                    ; preds = %entry
+  br label %for.cond1.preheader
+
+for.cond1.preheader:                              ; preds = %for.cond1.preheader.preheader, %for.inc24
+  %B.addr.012 = phi i64* [ %B.addr.1.lcssa, %for.inc24 ], [ %B, %for.cond1.preheader.preheader ]
+  %i.011 = phi i64 [ %inc25, %for.inc24 ], [ 0, %for.cond1.preheader.preheader ]
   %cmp26 = icmp sgt i64 %n, 0
-  br i1 %cmp26, label %for.cond4.preheader, label %for.inc24
+  br i1 %cmp26, label %for.cond4.preheader.preheader, label %for.inc24
+
+for.cond4.preheader.preheader:                    ; preds = %for.cond1.preheader
+  br label %for.cond4.preheader
 
-for.cond4.preheader:                              ; preds = %for.inc21, %for.cond1.preheader
-  %B.addr.18 = phi i64* [ %B.addr.2.lcssa, %for.inc21 ], [ %B.addr.012, %for.cond1.preheader ]
-  %j.07 = phi i64 [ %inc22, %for.inc21 ], [ 0, %for.cond1.preheader ]
+for.cond4.preheader:                              ; preds = %for.cond4.preheader.preheader, %for.inc21
+  %B.addr.18 = phi i64* [ %B.addr.2.lcssa, %for.inc21 ], [ %B.addr.012, %for.cond4.preheader.preheader ]
+  %j.07 = phi i64 [ %inc22, %for.inc21 ], [ 0, %for.cond4.preheader.preheader ]
   %cmp51 = icmp sgt i64 %n, 0
-  br i1 %cmp51, label %for.body6, label %for.cond10.loopexit
+  br i1 %cmp51, label %for.body6.preheader, label %for.cond10.loopexit
+
+for.body6.preheader:                              ; preds = %for.cond4.preheader
+  br label %for.body6
 
-for.body6:                                        ; preds = %for.body6, %for.cond4.preheader
-  %k.02 = phi i64 [ %inc, %for.body6 ], [ 0, %for.cond4.preheader ]
+for.body6:                                        ; preds = %for.body6.preheader, %for.body6
+  %k.02 = phi i64 [ %inc, %for.body6 ], [ 0, %for.body6.preheader ]
   %arrayidx8 = getelementptr inbounds [100 x [100 x i64]]* %A, i64 %i.011, i64 %j.07, i64 %k.02
   store i64 %i.011, i64* %arrayidx8, align 8
   %inc = add nsw i64 %k.02, 1
-  %cmp5 = icmp slt i64 %inc, %n
-  br i1 %cmp5, label %for.body6, label %for.cond10.loopexit
+  %exitcond13 = icmp ne i64 %inc, %n
+  br i1 %exitcond13, label %for.body6, label %for.cond10.loopexit.loopexit
 
-for.cond10.loopexit:                              ; preds = %for.body6, %for.cond4.preheader
+for.cond10.loopexit.loopexit:                     ; preds = %for.body6
+  br label %for.cond10.loopexit
+
+for.cond10.loopexit:                              ; preds = %for.cond10.loopexit.loopexit, %for.cond4.preheader
   %cmp113 = icmp sgt i64 %n, 0
-  br i1 %cmp113, label %for.body12, label %for.inc21
+  br i1 %cmp113, label %for.body12.preheader, label %for.inc21
+
+for.body12.preheader:                             ; preds = %for.cond10.loopexit
+  br label %for.body12
 
-for.body12:                                       ; preds = %for.body12, %for.cond10.loopexit
-  %k9.05 = phi i64 [ %inc19, %for.body12 ], [ 0, %for.cond10.loopexit ]
-  %B.addr.24 = phi i64* [ %incdec.ptr, %for.body12 ], [ %B.addr.18, %for.cond10.loopexit ]
+for.body12:                                       ; preds = %for.body12.preheader, %for.body12
+  %k9.05 = phi i64 [ %inc19, %for.body12 ], [ 0, %for.body12.preheader ]
+  %B.addr.24 = phi i64* [ %incdec.ptr, %for.body12 ], [ %B.addr.18, %for.body12.preheader ]
   %add = add nsw i64 %k9.05, 1
   %add13 = add nsw i64 %j.07, 2
   %add14 = add nsw i64 %i.011, 3
   %arrayidx17 = getelementptr inbounds [100 x [100 x i64]]* %A, i64 %add14, i64 %add13, i64 %add
   %0 = load i64* %arrayidx17, align 8
-; CHECK: da analyze - flow [-3 -2]!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.24, i64 1
   store i64 %0, i64* %B.addr.24, align 8
   %inc19 = add nsw i64 %k9.05, 1
-  %cmp11 = icmp slt i64 %inc19, %n
-  br i1 %cmp11, label %for.body12, label %for.inc21
+  %exitcond = icmp ne i64 %inc19, %n
+  br i1 %exitcond, label %for.body12, label %for.inc21.loopexit
+
+for.inc21.loopexit:                               ; preds = %for.body12
+  %scevgep = getelementptr i64* %B.addr.18, i64 %n
+  br label %for.inc21
 
-for.inc21:                                        ; preds = %for.body12, %for.cond10.loopexit
-  %B.addr.2.lcssa = phi i64* [ %B.addr.18, %for.cond10.loopexit ], [ %incdec.ptr, %for.body12 ]
+for.inc21:                                        ; preds = %for.inc21.loopexit, %for.cond10.loopexit
+  %B.addr.2.lcssa = phi i64* [ %B.addr.18, %for.cond10.loopexit ], [ %scevgep, %for.inc21.loopexit ]
   %inc22 = add nsw i64 %j.07, 1
-  %cmp2 = icmp slt i64 %inc22, %n
-  br i1 %cmp2, label %for.cond4.preheader, label %for.inc24
+  %exitcond14 = icmp ne i64 %inc22, %n
+  br i1 %exitcond14, label %for.cond4.preheader, label %for.inc24.loopexit
 
-for.inc24:                                        ; preds = %for.inc21, %for.cond1.preheader
-  %B.addr.1.lcssa = phi i64* [ %B.addr.012, %for.cond1.preheader ], [ %B.addr.2.lcssa, %for.inc21 ]
+for.inc24.loopexit:                               ; preds = %for.inc21
+  %B.addr.2.lcssa.lcssa = phi i64* [ %B.addr.2.lcssa, %for.inc21 ]
+  br label %for.inc24
+
+for.inc24:                                        ; preds = %for.inc24.loopexit, %for.cond1.preheader
+  %B.addr.1.lcssa = phi i64* [ %B.addr.012, %for.cond1.preheader ], [ %B.addr.2.lcssa.lcssa, %for.inc24.loopexit ]
   %inc25 = add nsw i64 %i.011, 1
-  %cmp = icmp slt i64 %inc25, %n
-  br i1 %cmp, label %for.cond1.preheader, label %for.end26
+  %exitcond15 = icmp ne i64 %inc25, %n
+  br i1 %exitcond15, label %for.cond1.preheader, label %for.end26.loopexit
+
+for.end26.loopexit:                               ; preds = %for.inc24
+  br label %for.end26
 
-for.end26:                                        ; preds = %for.inc24, %entry
+for.end26:                                        ; preds = %for.end26.loopexit, %entry
   ret void
 }
 
 
-;; classify subscripts
 ;;  for (long int i = 0; i < n; i++)
 ;;  for (long int j = 0; j < n; j++)
 ;;  for (long int k = 0; k < n; k++)
@@ -118,83 +154,127 @@ for.end26:                                        ; preds = %for.inc24, %entry
 ;;  for (long int s = 0; s < n; s++)
 ;;  for (long int u = 0; u < n; u++)
 ;;  for (long int t = 0; t < n; t++) {
-;;          A[i - 3] [j] [2] [k-1] [2*l + 1] [m] [p + q] [r + s] = ...
-;;    ... = A[i + 3] [2] [u] [1-k] [3*l - 1] [o] [1 + n] [t + 2];
+;;           A[i - 3] [j] [2] [k-1] [2*l + 1] [m] [p + q] [r + s] = i;
+;;    *B++ = A[i + 3] [2] [u] [1-k] [3*l - 1] [o] [1 + n] [t + 2];
 
 define void @p3(i64 %n, [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64* %B) nounwind uwtable ssp {
 entry:
   %cmp44 = icmp sgt i64 %n, 0
-  br i1 %cmp44, label %for.cond1.preheader, label %for.end90
+  br i1 %cmp44, label %for.cond1.preheader.preheader, label %for.end90
+
+; CHECK: da analyze - output [0 0 0 0 0 S * * * * S S|<]!
+; CHECK: da analyze - flow [-6 * * => * * * * * * * *] splitable!
+; CHECK: da analyze - split level = 3, iteration = 1!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 S 0 0 S 0 S S S S 0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader.preheader:                    ; preds = %entry
+  br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc88, %entry
-  %B.addr.046 = phi i64* [ %B.addr.1.lcssa, %for.inc88 ], [ %B, %entry ]
-  %i.045 = phi i64 [ %inc89, %for.inc88 ], [ 0, %entry ]
+for.cond1.preheader:                              ; preds = %for.cond1.preheader.preheader, %for.inc88
+  %B.addr.046 = phi i64* [ %B.addr.1.lcssa, %for.inc88 ], [ %B, %for.cond1.preheader.preheader ]
+  %i.045 = phi i64 [ %inc89, %for.inc88 ], [ 0, %for.cond1.preheader.preheader ]
   %cmp240 = icmp sgt i64 %n, 0
-  br i1 %cmp240, label %for.cond4.preheader, label %for.inc88
+  br i1 %cmp240, label %for.cond4.preheader.preheader, label %for.inc88
+
+for.cond4.preheader.preheader:                    ; preds = %for.cond1.preheader
+  br label %for.cond4.preheader
 
-for.cond4.preheader:                              ; preds = %for.inc85, %for.cond1.preheader
-  %B.addr.142 = phi i64* [ %B.addr.2.lcssa, %for.inc85 ], [ %B.addr.046, %for.cond1.preheader ]
-  %j.041 = phi i64 [ %inc86, %for.inc85 ], [ 0, %for.cond1.preheader ]
+for.cond4.preheader:                              ; preds = %for.cond4.preheader.preheader, %for.inc85
+  %B.addr.142 = phi i64* [ %B.addr.2.lcssa, %for.inc85 ], [ %B.addr.046, %for.cond4.preheader.preheader ]
+  %j.041 = phi i64 [ %inc86, %for.inc85 ], [ 0, %for.cond4.preheader.preheader ]
   %cmp536 = icmp sgt i64 %n, 0
-  br i1 %cmp536, label %for.cond7.preheader, label %for.inc85
+  br i1 %cmp536, label %for.cond7.preheader.preheader, label %for.inc85
 
-for.cond7.preheader:                              ; preds = %for.inc82, %for.cond4.preheader
-  %B.addr.238 = phi i64* [ %B.addr.3.lcssa, %for.inc82 ], [ %B.addr.142, %for.cond4.preheader ]
-  %k.037 = phi i64 [ %inc83, %for.inc82 ], [ 0, %for.cond4.preheader ]
+for.cond7.preheader.preheader:                    ; preds = %for.cond4.preheader
+  br label %for.cond7.preheader
+
+for.cond7.preheader:                              ; preds = %for.cond7.preheader.preheader, %for.inc82
+  %B.addr.238 = phi i64* [ %B.addr.3.lcssa, %for.inc82 ], [ %B.addr.142, %for.cond7.preheader.preheader ]
+  %k.037 = phi i64 [ %inc83, %for.inc82 ], [ 0, %for.cond7.preheader.preheader ]
   %cmp832 = icmp sgt i64 %n, 0
-  br i1 %cmp832, label %for.cond10.preheader, label %for.inc82
+  br i1 %cmp832, label %for.cond10.preheader.preheader, label %for.inc82
+
+for.cond10.preheader.preheader:                   ; preds = %for.cond7.preheader
+  br label %for.cond10.preheader
 
-for.cond10.preheader:                             ; preds = %for.inc79, %for.cond7.preheader
-  %B.addr.334 = phi i64* [ %B.addr.4.lcssa, %for.inc79 ], [ %B.addr.238, %for.cond7.preheader ]
-  %l.033 = phi i64 [ %inc80, %for.inc79 ], [ 0, %for.cond7.preheader ]
+for.cond10.preheader:                             ; preds = %for.cond10.preheader.preheader, %for.inc79
+  %B.addr.334 = phi i64* [ %B.addr.4.lcssa, %for.inc79 ], [ %B.addr.238, %for.cond10.preheader.preheader ]
+  %l.033 = phi i64 [ %inc80, %for.inc79 ], [ 0, %for.cond10.preheader.preheader ]
   %cmp1128 = icmp sgt i64 %n, 0
-  br i1 %cmp1128, label %for.cond13.preheader, label %for.inc79
+  br i1 %cmp1128, label %for.cond13.preheader.preheader, label %for.inc79
 
-for.cond13.preheader:                             ; preds = %for.inc76, %for.cond10.preheader
-  %B.addr.430 = phi i64* [ %B.addr.5.lcssa, %for.inc76 ], [ %B.addr.334, %for.cond10.preheader ]
-  %m.029 = phi i64 [ %inc77, %for.inc76 ], [ 0, %for.cond10.preheader ]
+for.cond13.preheader.preheader:                   ; preds = %for.cond10.preheader
+  br label %for.cond13.preheader
+
+for.cond13.preheader:                             ; preds = %for.cond13.preheader.preheader, %for.inc76
+  %B.addr.430 = phi i64* [ %B.addr.5.lcssa, %for.inc76 ], [ %B.addr.334, %for.cond13.preheader.preheader ]
+  %m.029 = phi i64 [ %inc77, %for.inc76 ], [ 0, %for.cond13.preheader.preheader ]
   %cmp1424 = icmp sgt i64 %n, 0
-  br i1 %cmp1424, label %for.cond16.preheader, label %for.inc76
+  br i1 %cmp1424, label %for.cond16.preheader.preheader, label %for.inc76
+
+for.cond16.preheader.preheader:                   ; preds = %for.cond13.preheader
+  br label %for.cond16.preheader
 
-for.cond16.preheader:                             ; preds = %for.inc73, %for.cond13.preheader
-  %B.addr.526 = phi i64* [ %B.addr.6.lcssa, %for.inc73 ], [ %B.addr.430, %for.cond13.preheader ]
-  %o.025 = phi i64 [ %inc74, %for.inc73 ], [ 0, %for.cond13.preheader ]
+for.cond16.preheader:                             ; preds = %for.cond16.preheader.preheader, %for.inc73
+  %B.addr.526 = phi i64* [ %B.addr.6.lcssa, %for.inc73 ], [ %B.addr.430, %for.cond16.preheader.preheader ]
+  %o.025 = phi i64 [ %inc74, %for.inc73 ], [ 0, %for.cond16.preheader.preheader ]
   %cmp1720 = icmp sgt i64 %n, 0
-  br i1 %cmp1720, label %for.cond19.preheader, label %for.inc73
+  br i1 %cmp1720, label %for.cond19.preheader.preheader, label %for.inc73
 
-for.cond19.preheader:                             ; preds = %for.inc70, %for.cond16.preheader
-  %B.addr.622 = phi i64* [ %B.addr.7.lcssa, %for.inc70 ], [ %B.addr.526, %for.cond16.preheader ]
-  %p.021 = phi i64 [ %inc71, %for.inc70 ], [ 0, %for.cond16.preheader ]
+for.cond19.preheader.preheader:                   ; preds = %for.cond16.preheader
+  br label %for.cond19.preheader
+
+for.cond19.preheader:                             ; preds = %for.cond19.preheader.preheader, %for.inc70
+  %B.addr.622 = phi i64* [ %B.addr.7.lcssa, %for.inc70 ], [ %B.addr.526, %for.cond19.preheader.preheader ]
+  %p.021 = phi i64 [ %inc71, %for.inc70 ], [ 0, %for.cond19.preheader.preheader ]
   %cmp2016 = icmp sgt i64 %n, 0
-  br i1 %cmp2016, label %for.cond22.preheader, label %for.inc70
+  br i1 %cmp2016, label %for.cond22.preheader.preheader, label %for.inc70
+
+for.cond22.preheader.preheader:                   ; preds = %for.cond19.preheader
+  br label %for.cond22.preheader
 
-for.cond22.preheader:                             ; preds = %for.inc67, %for.cond19.preheader
-  %B.addr.718 = phi i64* [ %B.addr.8.lcssa, %for.inc67 ], [ %B.addr.622, %for.cond19.preheader ]
-  %q.017 = phi i64 [ %inc68, %for.inc67 ], [ 0, %for.cond19.preheader ]
+for.cond22.preheader:                             ; preds = %for.cond22.preheader.preheader, %for.inc67
+  %B.addr.718 = phi i64* [ %B.addr.8.lcssa, %for.inc67 ], [ %B.addr.622, %for.cond22.preheader.preheader ]
+  %q.017 = phi i64 [ %inc68, %for.inc67 ], [ 0, %for.cond22.preheader.preheader ]
   %cmp2312 = icmp sgt i64 %n, 0
-  br i1 %cmp2312, label %for.cond25.preheader, label %for.inc67
+  br i1 %cmp2312, label %for.cond25.preheader.preheader, label %for.inc67
+
+for.cond25.preheader.preheader:                   ; preds = %for.cond22.preheader
+  br label %for.cond25.preheader
 
-for.cond25.preheader:                             ; preds = %for.inc64, %for.cond22.preheader
-  %B.addr.814 = phi i64* [ %B.addr.9.lcssa, %for.inc64 ], [ %B.addr.718, %for.cond22.preheader ]
-  %r.013 = phi i64 [ %inc65, %for.inc64 ], [ 0, %for.cond22.preheader ]
+for.cond25.preheader:                             ; preds = %for.cond25.preheader.preheader, %for.inc64
+  %B.addr.814 = phi i64* [ %B.addr.9.lcssa, %for.inc64 ], [ %B.addr.718, %for.cond25.preheader.preheader ]
+  %r.013 = phi i64 [ %inc65, %for.inc64 ], [ 0, %for.cond25.preheader.preheader ]
   %cmp268 = icmp sgt i64 %n, 0
-  br i1 %cmp268, label %for.cond28.preheader, label %for.inc64
+  br i1 %cmp268, label %for.cond28.preheader.preheader, label %for.inc64
 
-for.cond28.preheader:                             ; preds = %for.inc61, %for.cond25.preheader
-  %B.addr.910 = phi i64* [ %B.addr.10.lcssa, %for.inc61 ], [ %B.addr.814, %for.cond25.preheader ]
-  %s.09 = phi i64 [ %inc62, %for.inc61 ], [ 0, %for.cond25.preheader ]
+for.cond28.preheader.preheader:                   ; preds = %for.cond25.preheader
+  br label %for.cond28.preheader
+
+for.cond28.preheader:                             ; preds = %for.cond28.preheader.preheader, %for.inc61
+  %B.addr.910 = phi i64* [ %B.addr.10.lcssa, %for.inc61 ], [ %B.addr.814, %for.cond28.preheader.preheader ]
+  %s.09 = phi i64 [ %inc62, %for.inc61 ], [ 0, %for.cond28.preheader.preheader ]
   %cmp294 = icmp sgt i64 %n, 0
-  br i1 %cmp294, label %for.cond31.preheader, label %for.inc61
+  br i1 %cmp294, label %for.cond31.preheader.preheader, label %for.inc61
+
+for.cond31.preheader.preheader:                   ; preds = %for.cond28.preheader
+  br label %for.cond31.preheader
 
-for.cond31.preheader:                             ; preds = %for.inc58, %for.cond28.preheader
-  %u.06 = phi i64 [ %inc59, %for.inc58 ], [ 0, %for.cond28.preheader ]
-  %B.addr.105 = phi i64* [ %B.addr.11.lcssa, %for.inc58 ], [ %B.addr.910, %for.cond28.preheader ]
+for.cond31.preheader:                             ; preds = %for.cond31.preheader.preheader, %for.inc58
+  %u.06 = phi i64 [ %inc59, %for.inc58 ], [ 0, %for.cond31.preheader.preheader ]
+  %B.addr.105 = phi i64* [ %B.addr.11.lcssa, %for.inc58 ], [ %B.addr.910, %for.cond31.preheader.preheader ]
   %cmp321 = icmp sgt i64 %n, 0
-  br i1 %cmp321, label %for.body33, label %for.inc58
+  br i1 %cmp321, label %for.body33.preheader, label %for.inc58
 
-for.body33:                                       ; preds = %for.body33, %for.cond31.preheader
-  %t.03 = phi i64 [ %inc, %for.body33 ], [ 0, %for.cond31.preheader ]
-  %B.addr.112 = phi i64* [ %incdec.ptr, %for.body33 ], [ %B.addr.105, %for.cond31.preheader ]
+for.body33.preheader:                             ; preds = %for.cond31.preheader
+  br label %for.body33
+
+for.body33:                                       ; preds = %for.body33.preheader, %for.body33
+  %t.03 = phi i64 [ %inc, %for.body33 ], [ 0, %for.body33.preheader ]
+  %B.addr.112 = phi i64* [ %incdec.ptr, %for.body33 ], [ %B.addr.105, %for.body33.preheader ]
   %add = add nsw i64 %r.013, %s.09
   %add34 = add nsw i64 %p.021, %q.017
   %mul = shl nsw i64 %l.033, 1
@@ -211,99 +291,153 @@ for.body33:                                       ; preds = %for.body33, %for.co
   %add49 = add nsw i64 %i.045, 3
   %arrayidx57 = getelementptr inbounds [100 x [100 x [100 x [100 x [100 x [100 x [100 x i64]]]]]]]* %A, i64 %add49, i64 2, i64 %u.06, i64 %sub48, i64 %sub47, i64 %o.025, i64 %add45, i64 %add44
   %0 = load i64* %arrayidx57, align 8
-; CHECK: da analyze - flow [-6 * * => * * * * * * * *] splitable!
-; CHECK: da analyze - split level = 3, iteration = 1!
   %incdec.ptr = getelementptr inbounds i64* %B.addr.112, i64 1
   store i64 %0, i64* %B.addr.112, align 8
   %inc = add nsw i64 %t.03, 1
-  %cmp32 = icmp slt i64 %inc, %n
-  br i1 %cmp32, label %for.body33, label %for.inc58
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body33, label %for.inc58.loopexit
+
+for.inc58.loopexit:                               ; preds = %for.body33
+  %scevgep = getelementptr i64* %B.addr.105, i64 %n
+  br label %for.inc58
 
-for.inc58:                                        ; preds = %for.body33, %for.cond31.preheader
-  %B.addr.11.lcssa = phi i64* [ %B.addr.105, %for.cond31.preheader ], [ %incdec.ptr, %for.body33 ]
+for.inc58:                                        ; preds = %for.inc58.loopexit, %for.cond31.preheader
+  %B.addr.11.lcssa = phi i64* [ %B.addr.105, %for.cond31.preheader ], [ %scevgep, %for.inc58.loopexit ]
   %inc59 = add nsw i64 %u.06, 1
-  %cmp29 = icmp slt i64 %inc59, %n
-  br i1 %cmp29, label %for.cond31.preheader, label %for.inc61
+  %exitcond48 = icmp ne i64 %inc59, %n
+  br i1 %exitcond48, label %for.cond31.preheader, label %for.inc61.loopexit
+
+for.inc61.loopexit:                               ; preds = %for.inc58
+  %B.addr.11.lcssa.lcssa = phi i64* [ %B.addr.11.lcssa, %for.inc58 ]
+  br label %for.inc61
 
-for.inc61:                                        ; preds = %for.inc58, %for.cond28.preheader
-  %B.addr.10.lcssa = phi i64* [ %B.addr.910, %for.cond28.preheader ], [ %B.addr.11.lcssa, %for.inc58 ]
+for.inc61:                                        ; preds = %for.inc61.loopexit, %for.cond28.preheader
+  %B.addr.10.lcssa = phi i64* [ %B.addr.910, %for.cond28.preheader ], [ %B.addr.11.lcssa.lcssa, %for.inc61.loopexit ]
   %inc62 = add nsw i64 %s.09, 1
-  %cmp26 = icmp slt i64 %inc62, %n
-  br i1 %cmp26, label %for.cond28.preheader, label %for.inc64
+  %exitcond49 = icmp ne i64 %inc62, %n
+  br i1 %exitcond49, label %for.cond28.preheader, label %for.inc64.loopexit
 
-for.inc64:                                        ; preds = %for.inc61, %for.cond25.preheader
-  %B.addr.9.lcssa = phi i64* [ %B.addr.814, %for.cond25.preheader ], [ %B.addr.10.lcssa, %for.inc61 ]
+for.inc64.loopexit:                               ; preds = %for.inc61
+  %B.addr.10.lcssa.lcssa = phi i64* [ %B.addr.10.lcssa, %for.inc61 ]
+  br label %for.inc64
+
+for.inc64:                                        ; preds = %for.inc64.loopexit, %for.cond25.preheader
+  %B.addr.9.lcssa = phi i64* [ %B.addr.814, %for.cond25.preheader ], [ %B.addr.10.lcssa.lcssa, %for.inc64.loopexit ]
   %inc65 = add nsw i64 %r.013, 1
-  %cmp23 = icmp slt i64 %inc65, %n
-  br i1 %cmp23, label %for.cond25.preheader, label %for.inc67
+  %exitcond50 = icmp ne i64 %inc65, %n
+  br i1 %exitcond50, label %for.cond25.preheader, label %for.inc67.loopexit
+
+for.inc67.loopexit:                               ; preds = %for.inc64
+  %B.addr.9.lcssa.lcssa = phi i64* [ %B.addr.9.lcssa, %for.inc64 ]
+  br label %for.inc67
 
-for.inc67:                                        ; preds = %for.inc64, %for.cond22.preheader
-  %B.addr.8.lcssa = phi i64* [ %B.addr.718, %for.cond22.preheader ], [ %B.addr.9.lcssa, %for.inc64 ]
+for.inc67:                                        ; preds = %for.inc67.loopexit, %for.cond22.preheader
+  %B.addr.8.lcssa = phi i64* [ %B.addr.718, %for.cond22.preheader ], [ %B.addr.9.lcssa.lcssa, %for.inc67.loopexit ]
   %inc68 = add nsw i64 %q.017, 1
-  %cmp20 = icmp slt i64 %inc68, %n
-  br i1 %cmp20, label %for.cond22.preheader, label %for.inc70
+  %exitcond51 = icmp ne i64 %inc68, %n
+  br i1 %exitcond51, label %for.cond22.preheader, label %for.inc70.loopexit
 
-for.inc70:                                        ; preds = %for.inc67, %for.cond19.preheader
-  %B.addr.7.lcssa = phi i64* [ %B.addr.622, %for.cond19.preheader ], [ %B.addr.8.lcssa, %for.inc67 ]
+for.inc70.loopexit:                               ; preds = %for.inc67
+  %B.addr.8.lcssa.lcssa = phi i64* [ %B.addr.8.lcssa, %for.inc67 ]
+  br label %for.inc70
+
+for.inc70:                                        ; preds = %for.inc70.loopexit, %for.cond19.preheader
+  %B.addr.7.lcssa = phi i64* [ %B.addr.622, %for.cond19.preheader ], [ %B.addr.8.lcssa.lcssa, %for.inc70.loopexit ]
   %inc71 = add nsw i64 %p.021, 1
-  %cmp17 = icmp slt i64 %inc71, %n
-  br i1 %cmp17, label %for.cond19.preheader, label %for.inc73
+  %exitcond52 = icmp ne i64 %inc71, %n
+  br i1 %exitcond52, label %for.cond19.preheader, label %for.inc73.loopexit
+
+for.inc73.loopexit:                               ; preds = %for.inc70
+  %B.addr.7.lcssa.lcssa = phi i64* [ %B.addr.7.lcssa, %for.inc70 ]
+  br label %for.inc73
 
-for.inc73:                                        ; preds = %for.inc70, %for.cond16.preheader
-  %B.addr.6.lcssa = phi i64* [ %B.addr.526, %for.cond16.preheader ], [ %B.addr.7.lcssa, %for.inc70 ]
+for.inc73:                                        ; preds = %for.inc73.loopexit, %for.cond16.preheader
+  %B.addr.6.lcssa = phi i64* [ %B.addr.526, %for.cond16.preheader ], [ %B.addr.7.lcssa.lcssa, %for.inc73.loopexit ]
   %inc74 = add nsw i64 %o.025, 1
-  %cmp14 = icmp slt i64 %inc74, %n
-  br i1 %cmp14, label %for.cond16.preheader, label %for.inc76
+  %exitcond53 = icmp ne i64 %inc74, %n
+  br i1 %exitcond53, label %for.cond16.preheader, label %for.inc76.loopexit
 
-for.inc76:                                        ; preds = %for.inc73, %for.cond13.preheader
-  %B.addr.5.lcssa = phi i64* [ %B.addr.430, %for.cond13.preheader ], [ %B.addr.6.lcssa, %for.inc73 ]
+for.inc76.loopexit:                               ; preds = %for.inc73
+  %B.addr.6.lcssa.lcssa = phi i64* [ %B.addr.6.lcssa, %for.inc73 ]
+  br label %for.inc76
+
+for.inc76:                                        ; preds = %for.inc76.loopexit, %for.cond13.preheader
+  %B.addr.5.lcssa = phi i64* [ %B.addr.430, %for.cond13.preheader ], [ %B.addr.6.lcssa.lcssa, %for.inc76.loopexit ]
   %inc77 = add nsw i64 %m.029, 1
-  %cmp11 = icmp slt i64 %inc77, %n
-  br i1 %cmp11, label %for.cond13.preheader, label %for.inc79
+  %exitcond54 = icmp ne i64 %inc77, %n
+  br i1 %exitcond54, label %for.cond13.preheader, label %for.inc79.loopexit
+
+for.inc79.loopexit:                               ; preds = %for.inc76
+  %B.addr.5.lcssa.lcssa = phi i64* [ %B.addr.5.lcssa, %for.inc76 ]
+  br label %for.inc79
 
-for.inc79:                                        ; preds = %for.inc76, %for.cond10.preheader
-  %B.addr.4.lcssa = phi i64* [ %B.addr.334, %for.cond10.preheader ], [ %B.addr.5.lcssa, %for.inc76 ]
+for.inc79:                                        ; preds = %for.inc79.loopexit, %for.cond10.preheader
+  %B.addr.4.lcssa = phi i64* [ %B.addr.334, %for.cond10.preheader ], [ %B.addr.5.lcssa.lcssa, %for.inc79.loopexit ]
   %inc80 = add nsw i64 %l.033, 1
-  %cmp8 = icmp slt i64 %inc80, %n
-  br i1 %cmp8, label %for.cond10.preheader, label %for.inc82
+  %exitcond55 = icmp ne i64 %inc80, %n
+  br i1 %exitcond55, label %for.cond10.preheader, label %for.inc82.loopexit
+
+for.inc82.loopexit:                               ; preds = %for.inc79
+  %B.addr.4.lcssa.lcssa = phi i64* [ %B.addr.4.lcssa, %for.inc79 ]
+  br label %for.inc82
 
-for.inc82:                                        ; preds = %for.inc79, %for.cond7.preheader
-  %B.addr.3.lcssa = phi i64* [ %B.addr.238, %for.cond7.preheader ], [ %B.addr.4.lcssa, %for.inc79 ]
+for.inc82:                                        ; preds = %for.inc82.loopexit, %for.cond7.preheader
+  %B.addr.3.lcssa = phi i64* [ %B.addr.238, %for.cond7.preheader ], [ %B.addr.4.lcssa.lcssa, %for.inc82.loopexit ]
   %inc83 = add nsw i64 %k.037, 1
-  %cmp5 = icmp slt i64 %inc83, %n
-  br i1 %cmp5, label %for.cond7.preheader, label %for.inc85
+  %exitcond56 = icmp ne i64 %inc83, %n
+  br i1 %exitcond56, label %for.cond7.preheader, label %for.inc85.loopexit
 
-for.inc85:                                        ; preds = %for.inc82, %for.cond4.preheader
-  %B.addr.2.lcssa = phi i64* [ %B.addr.142, %for.cond4.preheader ], [ %B.addr.3.lcssa, %for.inc82 ]
+for.inc85.loopexit:                               ; preds = %for.inc82
+  %B.addr.3.lcssa.lcssa = phi i64* [ %B.addr.3.lcssa, %for.inc82 ]
+  br label %for.inc85
+
+for.inc85:                                        ; preds = %for.inc85.loopexit, %for.cond4.preheader
+  %B.addr.2.lcssa = phi i64* [ %B.addr.142, %for.cond4.preheader ], [ %B.addr.3.lcssa.lcssa, %for.inc85.loopexit ]
   %inc86 = add nsw i64 %j.041, 1
-  %cmp2 = icmp slt i64 %inc86, %n
-  br i1 %cmp2, label %for.cond4.preheader, label %for.inc88
+  %exitcond57 = icmp ne i64 %inc86, %n
+  br i1 %exitcond57, label %for.cond4.preheader, label %for.inc88.loopexit
+
+for.inc88.loopexit:                               ; preds = %for.inc85
+  %B.addr.2.lcssa.lcssa = phi i64* [ %B.addr.2.lcssa, %for.inc85 ]
+  br label %for.inc88
 
-for.inc88:                                        ; preds = %for.inc85, %for.cond1.preheader
-  %B.addr.1.lcssa = phi i64* [ %B.addr.046, %for.cond1.preheader ], [ %B.addr.2.lcssa, %for.inc85 ]
+for.inc88:                                        ; preds = %for.inc88.loopexit, %for.cond1.preheader
+  %B.addr.1.lcssa = phi i64* [ %B.addr.046, %for.cond1.preheader ], [ %B.addr.2.lcssa.lcssa, %for.inc88.loopexit ]
   %inc89 = add nsw i64 %i.045, 1
-  %cmp = icmp slt i64 %inc89, %n
-  br i1 %cmp, label %for.cond1.preheader, label %for.end90
+  %exitcond58 = icmp ne i64 %inc89, %n
+  br i1 %exitcond58, label %for.cond1.preheader, label %for.end90.loopexit
 
-for.end90:                                        ; preds = %for.inc88, %entry
+for.end90.loopexit:                               ; preds = %for.inc88
+  br label %for.end90
+
+for.end90:                                        ; preds = %for.end90.loopexit, %entry
   ret void
 }
 
 
-;; cleanup around chars, shorts, ints
-;;void p4(int *A, int *B, long int n)
-;;  for (char i = 0; i < n; i++)
-;;    A[i + 2] = ...
-;;    ... = A[i];
+;;void p4(int *A, int *B, long int n) {
+;;  for (char i = 0; i < n; i++) {
+;;    A[i + 2] = i;
+;;    *B++ = A[i];
 
 define void @p4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp sgt i64 %n, 0
-  br i1 %cmp1, label %for.body, label %for.end
+  br i1 %cmp1, label %for.body.preheader, label %for.end
+
+; CHECK: da analyze - output [*|<]!
+; CHECK: da analyze - flow [*|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i8 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i8 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv2 = sext i8 %i.03 to i32
   %conv3 = sext i8 %i.03 to i64
   %add = add i64 %conv3, 2
@@ -312,32 +446,44 @@ for.body:                                         ; preds = %for.body, %entry
   %idxprom4 = sext i8 %i.03 to i64
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %idxprom4
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - flow [*|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i8 %i.03, 1
   %conv = sext i8 %inc to i64
   %cmp = icmp slt i64 %conv, %n
-  br i1 %cmp, label %for.body, label %for.end
+  br i1 %cmp, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;void p5(int *A, int *B, long int n)
-;;  for (short i = 0; i < n; i++)
-;;    A[i + 2] = ...
-;;    ... = A[i];
+;;void p5(int *A, int *B, long int n) {
+;;  for (short i = 0; i < n; i++) {
+;;    A[i + 2] = i;
+;;    *B++ = A[i];
 
 define void @p5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp sgt i64 %n, 0
-  br i1 %cmp1, label %for.body, label %for.end
+  br i1 %cmp1, label %for.body.preheader, label %for.end
+
+; CHECK: da analyze - output [*|<]!
+; CHECK: da analyze - flow [*|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i16 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i16 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv2 = sext i16 %i.03 to i32
   %conv3 = sext i16 %i.03 to i64
   %add = add i64 %conv3, 2
@@ -346,124 +492,163 @@ for.body:                                         ; preds = %for.body, %entry
   %idxprom4 = sext i16 %i.03 to i64
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %idxprom4
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - flow [*|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i16 %i.03, 1
   %conv = sext i16 %inc to i64
   %cmp = icmp slt i64 %conv, %n
-  br i1 %cmp, label %for.body, label %for.end
+  br i1 %cmp, label %for.body, label %for.end.loopexit
 
-for.end:                                          ; preds = %for.body, %entry
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
+
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;void p6(int *A, int *B, long int n)
-;;  for (int i = 0; i < n; i++)
-;;    A[i + 2] = ...
-;;    ... = A[i];
+;;void p6(int *A, int *B, long int n) {
+;;  for (int i = 0; i < n; i++) {
+;;    A[i + 2] = i;
+;;    *B++ = A[i];
 
 define void @p6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp sgt i64 %n, 0
-  br i1 %cmp1, label %for.body, label %for.end
+  br i1 %cmp1, label %for.body.preheader, label %for.end
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
-  %add = add nsw i32 %i.03, 2
-  %idxprom = sext i32 %add to i64
-  %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
-  store i32 %i.03, i32* %arrayidx, align 4
-  %idxprom2 = sext i32 %i.03 to i64
-  %arrayidx3 = getelementptr inbounds i32* %A, i64 %idxprom2
-  %0 = load i32* %arrayidx3, align 4
+; CHECK: da analyze - consistent output [0|<]!
 ; CHECK: da analyze - consistent flow [2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
+  %0 = add nsw i64 %indvars.iv, 2
+  %arrayidx = getelementptr inbounds i32* %A, i64 %0
+  %1 = trunc i64 %indvars.iv to i32
+  store i32 %1, i32* %arrayidx, align 4
+  %arrayidx3 = getelementptr inbounds i32* %A, i64 %indvars.iv
+  %2 = load i32* %arrayidx3, align 4
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
-  store i32 %0, i32* %B.addr.02, align 4
-  %inc = add nsw i32 %i.03, 1
-  %conv = sext i32 %inc to i64
-  %cmp = icmp slt i64 %conv, %n
-  br i1 %cmp, label %for.body, label %for.end
+  store i32 %2, i32* %B.addr.02, align 4
+  %indvars.iv.next = add i64 %indvars.iv, 1
+  %exitcond = icmp ne i64 %indvars.iv.next, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;void p7(unsigned *A, unsigned *B,  char n)
-;;  A[n] = ...
-;;  ... = A[n + 1];
+;;void p7(unsigned *A, unsigned *B,  char n) {
+;;  A[n] = 0;
+;;  *B = A[n + 1];
 
 define void @p7(i32* %A, i32* %B, i8 signext %n) nounwind uwtable ssp {
 entry:
   %idxprom = sext i8 %n to i64
   %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
+
+; CHECK: da analyze - consistent output!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
   store i32 0, i32* %arrayidx, align 4
   %conv = sext i8 %n to i64
   %add = add i64 %conv, 1
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - none!
   store i32 %0, i32* %B, align 4
   ret void
 }
 
 
-
-;;void p8(unsigned *A, unsigned *B,  short n)
-;;  A[n] = ...
-;;  ... = A[n + 1];
+;;void p8(unsigned *A, unsigned *B,  short n) {
+;;  A[n] = 0;
+;;  *B = A[n + 1];
 
 define void @p8(i32* %A, i32* %B, i16 signext %n) nounwind uwtable ssp {
 entry:
   %idxprom = sext i16 %n to i64
   %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
   store i32 0, i32* %arrayidx, align 4
+
+; CHECK: da analyze - consistent output!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
   %conv = sext i16 %n to i64
   %add = add i64 %conv, 1
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - none!
   store i32 %0, i32* %B, align 4
   ret void
 }
 
 
-;;void p9(unsigned *A, unsigned *B,  int n)
-;;  A[n] = ...
-;;  ... = A[n + 1];
+;;void p9(unsigned *A, unsigned *B,  int n) {
+;;  A[n] = 0;
+;;  *B = A[n + 1];
 
 define void @p9(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   %idxprom = sext i32 %n to i64
   %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
   store i32 0, i32* %arrayidx, align 4
+
+; CHECK: da analyze - consistent output!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
   %add = add nsw i32 %n, 1
   %idxprom1 = sext i32 %add to i64
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - none!
   store i32 %0, i32* %B, align 4
   ret void
 }
 
 
-;;void p10(unsigned *A, unsigned *B,  unsigned n)
-;;  A[n] = ...
-;;  ... = A[n + 1];
+;;void p10(unsigned *A, unsigned *B,  unsigned n) {
+;;  A[n] = 0;
+;;  *B = A[n + 1];
 
 define void @p10(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   %idxprom = zext i32 %n to i64
   %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
   store i32 0, i32* %arrayidx, align 4
+
+; CHECK: da analyze - consistent output!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
   %add = add i32 %n, 1
   %idxprom1 = zext i32 %add to i64
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - none!
   store i32 %0, i32* %B, align 4
   ret void
 }
diff --git a/test/Analysis/DependenceAnalysis/Propagating.ll b/test/Analysis/DependenceAnalysis/Propagating.ll
index 076348c..7a7219d 100644
--- a/test/Analysis/DependenceAnalysis/Propagating.ll
+++ b/test/Analysis/DependenceAnalysis/Propagating.ll
@@ -6,7 +6,7 @@ target triple = "x86_64-apple-macosx10.6.0"
 
 
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
+;;    for (long int j = 0; j < 100; j++) {
 ;;      A[i + 1][i + j] = i;
 ;;      *B++ = A[i][i + j];
 
@@ -14,12 +14,19 @@ define void @prop0([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc9, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc9 ]
+; CHECK: da analyze - consistent output [0 0|<]!
+; CHECK: da analyze - consistent flow [1 -1]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc9
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc9 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc10, %for.inc9 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -30,17 +37,17 @@ for.body3:                                        ; preds = %for.body3, %for.con
   %add6 = add nsw i64 %i.03, %j.02
   %arrayidx8 = getelementptr inbounds [100 x i32]* %A, i64 %i.03, i64 %add6
   %0 = load i32* %arrayidx8, align 4
-; CHECK: da analyze - consistent flow [1 -1]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 100
-  br i1 %cmp2, label %for.body3, label %for.inc9
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body3, label %for.inc9
 
 for.inc9:                                         ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 100
   %inc10 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc10, 100
-  br i1 %cmp, label %for.cond1.preheader, label %for.end11
+  %exitcond5 = icmp ne i64 %inc10, 100
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end11
 
 for.end11:                                        ; preds = %for.inc9
   ret void
@@ -49,25 +56,32 @@ for.end11:                                        ; preds = %for.inc9
 
 ;;  for (long int i = 0; i < 100; i++)
 ;;    for (long int j = 0; j < 100; j++)
-;;      for (long int k = 0; k < 100; k++)
-;;        A[j - i][i + 1][j + k] = ...
-;;        ... = A[j - i][i][j + k];
+;;      for (long int k = 0; k < 100; k++) {
+;;        A[j - i][i + 1][j + k] = i;
+;;        *B++ = A[j - i][i][j + k];
 
 define void @prop1([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc18, %entry
-  %B.addr.06 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc18 ]
+; CHECK: da analyze - consistent output [0 0 0|<]!
+; CHECK: da analyze - consistent flow [1 1 -1]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc18
+  %B.addr.06 = phi i32* [ %B, %entry ], [ %scevgep7, %for.inc18 ]
   %i.05 = phi i64 [ 0, %entry ], [ %inc19, %for.inc18 ]
   br label %for.cond4.preheader
 
-for.cond4.preheader:                              ; preds = %for.inc15, %for.cond1.preheader
-  %B.addr.14 = phi i32* [ %B.addr.06, %for.cond1.preheader ], [ %incdec.ptr, %for.inc15 ]
+for.cond4.preheader:                              ; preds = %for.cond1.preheader, %for.inc15
+  %B.addr.14 = phi i32* [ %B.addr.06, %for.cond1.preheader ], [ %scevgep, %for.inc15 ]
   %j.03 = phi i64 [ 0, %for.cond1.preheader ], [ %inc16, %for.inc15 ]
   br label %for.body6
 
-for.body6:                                        ; preds = %for.body6, %for.cond4.preheader
+for.body6:                                        ; preds = %for.cond4.preheader, %for.body6
   %k.02 = phi i64 [ 0, %for.cond4.preheader ], [ %inc, %for.body6 ]
   %B.addr.21 = phi i32* [ %B.addr.14, %for.cond4.preheader ], [ %incdec.ptr, %for.body6 ]
   %conv = trunc i64 %i.05 to i32
@@ -80,22 +94,23 @@ for.body6:                                        ; preds = %for.body6, %for.con
   %sub11 = sub nsw i64 %j.03, %i.05
   %arrayidx14 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %sub11, i64 %i.05, i64 %add10
   %0 = load i32* %arrayidx14, align 4
-; CHECK: da analyze - consistent flow [1 1 -1]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.21, i64 1
   store i32 %0, i32* %B.addr.21, align 4
   %inc = add nsw i64 %k.02, 1
-  %cmp5 = icmp slt i64 %inc, 100
-  br i1 %cmp5, label %for.body6, label %for.inc15
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body6, label %for.inc15
 
 for.inc15:                                        ; preds = %for.body6
+  %scevgep = getelementptr i32* %B.addr.14, i64 100
   %inc16 = add nsw i64 %j.03, 1
-  %cmp2 = icmp slt i64 %inc16, 100
-  br i1 %cmp2, label %for.cond4.preheader, label %for.inc18
+  %exitcond8 = icmp ne i64 %inc16, 100
+  br i1 %exitcond8, label %for.cond4.preheader, label %for.inc18
 
 for.inc18:                                        ; preds = %for.inc15
+  %scevgep7 = getelementptr i32* %B.addr.06, i64 10000
   %inc19 = add nsw i64 %i.05, 1
-  %cmp = icmp slt i64 %inc19, 100
-  br i1 %cmp, label %for.cond1.preheader, label %for.end20
+  %exitcond9 = icmp ne i64 %inc19, 100
+  br i1 %exitcond9, label %for.cond1.preheader, label %for.end20
 
 for.end20:                                        ; preds = %for.inc18
   ret void
@@ -103,20 +118,27 @@ for.end20:                                        ; preds = %for.inc18
 
 
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[i - 1][2*i] = ...
-;;      ... = A[i][i + j + 110];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[i - 1][2*i] = i;
+;;      *B++ = A[i][i + j + 110];
 
 define void @prop2([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc8, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc8 ]
+; CHECK: da analyze - consistent output [0 S|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc8
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc8 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -128,17 +150,17 @@ for.body3:                                        ; preds = %for.body3, %for.con
   %add5 = add nsw i64 %add, 110
   %arrayidx7 = getelementptr inbounds [100 x i32]* %A, i64 %i.03, i64 %add5
   %0 = load i32* %arrayidx7, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 100
-  br i1 %cmp2, label %for.body3, label %for.inc8
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body3, label %for.inc8
 
 for.inc8:                                         ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 100
   %inc9 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc9, 100
-  br i1 %cmp, label %for.cond1.preheader, label %for.end10
+  %exitcond5 = icmp ne i64 %inc9, 100
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end10
 
 for.end10:                                        ; preds = %for.inc8
   ret void
@@ -146,20 +168,27 @@ for.end10:                                        ; preds = %for.inc8
 
 
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[i][2*j + i] = ...
-;;      ... = A[i][2*j - i + 5];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[i][2*j + i] = i;
+;;      *B++ = A[i][2*j - i + 5];
 
 define void @prop3([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc9, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc9 ]
+; CHECK: da analyze - consistent output [0 0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc9
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc9 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc10, %for.inc9 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -172,39 +201,45 @@ for.body3:                                        ; preds = %for.body3, %for.con
   %add6 = add nsw i64 %sub, 5
   %arrayidx8 = getelementptr inbounds [100 x i32]* %A, i64 %i.03, i64 %add6
   %0 = load i32* %arrayidx8, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 100
-  br i1 %cmp2, label %for.body3, label %for.inc9
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body3, label %for.inc9
 
 for.inc9:                                         ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 100
   %inc10 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc10, 100
-  br i1 %cmp, label %for.cond1.preheader, label %for.end11
+  %exitcond5 = icmp ne i64 %inc10, 100
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end11
 
 for.end11:                                        ; preds = %for.inc9
   ret void
 }
 
 
-;; propagate Distance
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[i + 2][2*i + j + 1] = ...
-;;      ... = A[i][2*i + j];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[i + 2][2*i + j + 1] = i;
+;;      *B++ = A[i][2*i + j];
 
 define void @prop4([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc11, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc11 ]
+; CHECK: da analyze - consistent output [0 0|<]!
+; CHECK: da analyze - consistent flow [2 -3]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc11
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc11 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc12, %for.inc11 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -218,39 +253,46 @@ for.body3:                                        ; preds = %for.body3, %for.con
   %add8 = add nsw i64 %mul7, %j.02
   %arrayidx10 = getelementptr inbounds [100 x i32]* %A, i64 %i.03, i64 %add8
   %0 = load i32* %arrayidx10, align 4
-; CHECK: da analyze - consistent flow [2 -3]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 100
-  br i1 %cmp2, label %for.body3, label %for.inc11
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body3, label %for.inc11
 
 for.inc11:                                        ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 100
   %inc12 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc12, 100
-  br i1 %cmp, label %for.cond1.preheader, label %for.end13
+  %exitcond5 = icmp ne i64 %inc12, 100
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end13
 
 for.end13:                                        ; preds = %for.inc11
   ret void
 }
 
 
-;; propagate Point
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[3*i - 18][22 - i][2*i + j] = ...
-;;      ... = A[i][i][3*i + j];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[3*i - 18][22 - i][2*i + j] = i;
+;;      *B++ = A[i][i][3*i + j];
 
 define void @prop5([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc13, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc13 ]
+; CHECK: da analyze - consistent output [0 0|<]!
+; CHECK: da analyze - flow [< -16] splitable!
+; CHECK: da analyze - split level = 1, iteration = 11!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc13
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc13 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc14, %for.inc13 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -265,40 +307,45 @@ for.body3:                                        ; preds = %for.body3, %for.con
   %add9 = add nsw i64 %mul8, %j.02
   %arrayidx12 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 %i.03, i64 %i.03, i64 %add9
   %0 = load i32* %arrayidx12, align 4
-; CHECK: da analyze - flow [< -16] splitable!
-; CHECK: da analyze - split level = 1, iteration = 11!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 100
-  br i1 %cmp2, label %for.body3, label %for.inc13
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body3, label %for.inc13
 
 for.inc13:                                        ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 100
   %inc14 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc14, 100
-  br i1 %cmp, label %for.cond1.preheader, label %for.end15
+  %exitcond5 = icmp ne i64 %inc14, 100
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end15
 
 for.end15:                                        ; preds = %for.inc13
   ret void
 }
 
 
-;; propagate Line
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[i + 1][4*i + j + 2] = ...
-;;      ... = A[2*i][8*i + j];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[i + 1][4*i + j + 2] = i;
+;;      *B++ = A[2*i][8*i + j];
 
 define void @prop6([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc12, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc12 ]
+; CHECK: da analyze - consistent output [0 0|<]!
+; CHECK: da analyze - flow [=> -2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc12
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc12 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc13, %for.inc12 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -313,17 +360,17 @@ for.body3:                                        ; preds = %for.body3, %for.con
   %mul9 = shl nsw i64 %i.03, 1
   %arrayidx11 = getelementptr inbounds [100 x i32]* %A, i64 %mul9, i64 %add8
   %0 = load i32* %arrayidx11, align 4
-; CHECK: da analyze - flow [=> -2]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 100
-  br i1 %cmp2, label %for.body3, label %for.inc12
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body3, label %for.inc12
 
 for.inc12:                                        ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 100
   %inc13 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc13, 100
-  br i1 %cmp, label %for.cond1.preheader, label %for.end14
+  %exitcond5 = icmp ne i64 %inc13, 100
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end14
 
 for.end14:                                        ; preds = %for.inc12
   ret void
@@ -331,20 +378,28 @@ for.end14:                                        ; preds = %for.inc12
 
 
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[2*i + 4][-5*i + j + 2] = ...
-;;      ... = A[-2*i + 20][5*i + j];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[2*i + 4][-5*i + j + 2] = i;
+;;      *B++ = A[-2*i + 20][5*i + j];
 
 define void @prop7([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc14, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc14 ]
+; CHECK: da analyze - consistent output [0 0|<]!
+; CHECK: da analyze - flow [* -38] splitable!
+; CHECK: da analyze - split level = 1, iteration = 4!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc14
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc14 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc15, %for.inc14 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -361,18 +416,17 @@ for.body3:                                        ; preds = %for.body3, %for.con
   %add11 = add nsw i64 %mul10, 20
   %arrayidx13 = getelementptr inbounds [100 x i32]* %A, i64 %add11, i64 %add9
   %0 = load i32* %arrayidx13, align 4
-; CHECK: da analyze - flow [* -38] splitable!
-; CHECK: da analyze - split level = 1, iteration = 4!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 100
-  br i1 %cmp2, label %for.body3, label %for.inc14
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body3, label %for.inc14
 
 for.inc14:                                        ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 100
   %inc15 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc15, 100
-  br i1 %cmp, label %for.cond1.preheader, label %for.end16
+  %exitcond5 = icmp ne i64 %inc15, 100
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end16
 
 for.end16:                                        ; preds = %for.inc14
   ret void
@@ -380,20 +434,27 @@ for.end16:                                        ; preds = %for.inc14
 
 
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[4][j + 2] = ...
-;;      ... = A[-2*i + 4][5*i + j];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[4][j + 2] = i;
+;;      *B++ = A[-2*i + 4][5*i + j];
 
 define void @prop8([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc10, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc10 ]
+; CHECK: da analyze - consistent output [S 0|<]!
+; CHECK: da analyze - flow [p<= 2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc10
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc10 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc11, %for.inc10 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -406,17 +467,17 @@ for.body3:                                        ; preds = %for.body3, %for.con
   %add7 = add nsw i64 %mul6, 4
   %arrayidx9 = getelementptr inbounds [100 x i32]* %A, i64 %add7, i64 %add5
   %0 = load i32* %arrayidx9, align 4
-; CHECK: da analyze - flow [p<= 2]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 100
-  br i1 %cmp2, label %for.body3, label %for.inc10
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body3, label %for.inc10
 
 for.inc10:                                        ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 100
   %inc11 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc11, 100
-  br i1 %cmp, label %for.cond1.preheader, label %for.end12
+  %exitcond5 = icmp ne i64 %inc11, 100
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end12
 
 for.end12:                                        ; preds = %for.inc10
   ret void
@@ -424,20 +485,27 @@ for.end12:                                        ; preds = %for.inc10
 
 
 ;;  for (long int i = 0; i < 100; i++)
-;;    for (long int j = 0; j < 100; j++)
-;;      A[2*i + 4][5*i + j + 2] = ...
-;;      ... = A[4][j];
+;;    for (long int j = 0; j < 100; j++) {
+;;      A[2*i + 4][5*i + j + 2] = i;
+;;      *B++ = A[4][j];
 
 define void @prop9([100 x i32]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc10, %entry
-  %B.addr.04 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc10 ]
+; CHECK: da analyze - consistent output [0 0|<]!
+; CHECK: da analyze - flow [p<= 2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc10
+  %B.addr.04 = phi i32* [ %B, %entry ], [ %scevgep, %for.inc10 ]
   %i.03 = phi i64 [ 0, %entry ], [ %inc11, %for.inc10 ]
   br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
   %j.02 = phi i64 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
   %B.addr.11 = phi i32* [ %B.addr.04, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
   %conv = trunc i64 %i.03 to i32
@@ -450,17 +518,17 @@ for.body3:                                        ; preds = %for.body3, %for.con
   store i32 %conv, i32* %arrayidx7, align 4
   %arrayidx9 = getelementptr inbounds [100 x i32]* %A, i64 4, i64 %j.02
   %0 = load i32* %arrayidx9, align 4
-; CHECK: da analyze - flow [p<= 2]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.11, i64 1
   store i32 %0, i32* %B.addr.11, align 4
   %inc = add nsw i64 %j.02, 1
-  %cmp2 = icmp slt i64 %inc, 100
-  br i1 %cmp2, label %for.body3, label %for.inc10
+  %exitcond = icmp ne i64 %inc, 100
+  br i1 %exitcond, label %for.body3, label %for.inc10
 
 for.inc10:                                        ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.04, i64 100
   %inc11 = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc11, 100
-  br i1 %cmp, label %for.cond1.preheader, label %for.end12
+  %exitcond5 = icmp ne i64 %inc11, 100
+  br i1 %exitcond5, label %for.cond1.preheader, label %for.end12
 
 for.end12:                                        ; preds = %for.inc10
   ret void
diff --git a/test/Analysis/DependenceAnalysis/Separability.ll b/test/Analysis/DependenceAnalysis/Separability.ll
index d42d3cd..aaa1060 100644
--- a/test/Analysis/DependenceAnalysis/Separability.ll
+++ b/test/Analysis/DependenceAnalysis/Separability.ll
@@ -8,30 +8,37 @@ target triple = "x86_64-apple-macosx10.6.0"
 ;;  for (long int i = 0; i < 50; i++)
 ;;    for (long int j = 0; j < 50; j++)
 ;;      for (long int k = 0; k < 50; k++)
-;;        for (long int l = 0; l < 50; l++)
-;;          A[n][i][j + k] = ...
-;;          ... = A[10][i + 10][2*j - l];
+;;        for (long int l = 0; l < 50; l++) {
+;;          A[n][i][j + k] = i;
+;;          *B++ = A[10][i + 10][2*j - l];
 
 define void @sep0([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc22, %entry
-  %B.addr.08 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc22 ]
+; CHECK: da analyze - output [0 * * S|<]!
+; CHECK: da analyze - flow [-10 * * *]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [0 * S *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc22
+  %B.addr.08 = phi i32* [ %B, %entry ], [ %scevgep11, %for.inc22 ]
   %i.07 = phi i64 [ 0, %entry ], [ %inc23, %for.inc22 ]
   br label %for.cond4.preheader
 
-for.cond4.preheader:                              ; preds = %for.inc19, %for.cond1.preheader
-  %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %incdec.ptr, %for.inc19 ]
+for.cond4.preheader:                              ; preds = %for.cond1.preheader, %for.inc19
+  %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %scevgep9, %for.inc19 ]
   %j.05 = phi i64 [ 0, %for.cond1.preheader ], [ %inc20, %for.inc19 ]
   br label %for.cond7.preheader
 
-for.cond7.preheader:                              ; preds = %for.inc16, %for.cond4.preheader
-  %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %incdec.ptr, %for.inc16 ]
+for.cond7.preheader:                              ; preds = %for.cond4.preheader, %for.inc16
+  %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %scevgep, %for.inc16 ]
   %k.03 = phi i64 [ 0, %for.cond4.preheader ], [ %inc17, %for.inc16 ]
   br label %for.body9
 
-for.body9:                                        ; preds = %for.body9, %for.cond7.preheader
+for.body9:                                        ; preds = %for.cond7.preheader, %for.body9
   %l.02 = phi i64 [ 0, %for.cond7.preheader ], [ %inc, %for.body9 ]
   %B.addr.31 = phi i32* [ %B.addr.24, %for.cond7.preheader ], [ %incdec.ptr, %for.body9 ]
   %conv = trunc i64 %i.07 to i32
@@ -44,27 +51,29 @@ for.body9:                                        ; preds = %for.body9, %for.con
   %add12 = add nsw i64 %i.07, 10
   %arrayidx15 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 10, i64 %add12, i64 %sub
   %0 = load i32* %arrayidx15, align 4
-; CHECK: da analyze - flow [-10 * * *]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.31, i64 1
   store i32 %0, i32* %B.addr.31, align 4
   %inc = add nsw i64 %l.02, 1
-  %cmp8 = icmp slt i64 %inc, 50
-  br i1 %cmp8, label %for.body9, label %for.inc16
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body9, label %for.inc16
 
 for.inc16:                                        ; preds = %for.body9
+  %scevgep = getelementptr i32* %B.addr.24, i64 50
   %inc17 = add nsw i64 %k.03, 1
-  %cmp5 = icmp slt i64 %inc17, 50
-  br i1 %cmp5, label %for.cond7.preheader, label %for.inc19
+  %exitcond10 = icmp ne i64 %inc17, 50
+  br i1 %exitcond10, label %for.cond7.preheader, label %for.inc19
 
 for.inc19:                                        ; preds = %for.inc16
+  %scevgep9 = getelementptr i32* %B.addr.16, i64 2500
   %inc20 = add nsw i64 %j.05, 1
-  %cmp2 = icmp slt i64 %inc20, 50
-  br i1 %cmp2, label %for.cond4.preheader, label %for.inc22
+  %exitcond12 = icmp ne i64 %inc20, 50
+  br i1 %exitcond12, label %for.cond4.preheader, label %for.inc22
 
 for.inc22:                                        ; preds = %for.inc19
+  %scevgep11 = getelementptr i32* %B.addr.08, i64 125000
   %inc23 = add nsw i64 %i.07, 1
-  %cmp = icmp slt i64 %inc23, 50
-  br i1 %cmp, label %for.cond1.preheader, label %for.end24
+  %exitcond13 = icmp ne i64 %inc23, 50
+  br i1 %exitcond13, label %for.cond1.preheader, label %for.end24
 
 for.end24:                                        ; preds = %for.inc22
   ret void
@@ -74,30 +83,37 @@ for.end24:                                        ; preds = %for.inc22
 ;;  for (long int i = 0; i < 50; i++)
 ;;    for (long int j = 0; j < 50; j++)
 ;;      for (long int k = 0; k < 50; k++)
-;;        for (long int l = 0; l < 50; l++)
-;;          A[i][i][j + k] = ...
-;;          ... = A[10][i + 10][2*j - l];
+;;        for (long int l = 0; l < 50; l++) {
+;;          A[i][i][j + k] = i;
+;;          *B++ = A[10][i + 10][2*j - l];
 
 define void @sep1([100 x [100 x i32]]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc22, %entry
-  %B.addr.08 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc22 ]
+; CHECK: da analyze - output [0 * * S|<]!
+; CHECK: da analyze - flow [> * * *]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [0 * S *|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc22
+  %B.addr.08 = phi i32* [ %B, %entry ], [ %scevgep11, %for.inc22 ]
   %i.07 = phi i64 [ 0, %entry ], [ %inc23, %for.inc22 ]
   br label %for.cond4.preheader
 
-for.cond4.preheader:                              ; preds = %for.inc19, %for.cond1.preheader
-  %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %incdec.ptr, %for.inc19 ]
+for.cond4.preheader:                              ; preds = %for.cond1.preheader, %for.inc19
+  %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %scevgep9, %for.inc19 ]
   %j.05 = phi i64 [ 0, %for.cond1.preheader ], [ %inc20, %for.inc19 ]
   br label %for.cond7.preheader
 
-for.cond7.preheader:                              ; preds = %for.inc16, %for.cond4.preheader
-  %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %incdec.ptr, %for.inc16 ]
+for.cond7.preheader:                              ; preds = %for.cond4.preheader, %for.inc16
+  %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %scevgep, %for.inc16 ]
   %k.03 = phi i64 [ 0, %for.cond4.preheader ], [ %inc17, %for.inc16 ]
   br label %for.body9
 
-for.body9:                                        ; preds = %for.body9, %for.cond7.preheader
+for.body9:                                        ; preds = %for.cond7.preheader, %for.body9
   %l.02 = phi i64 [ 0, %for.cond7.preheader ], [ %inc, %for.body9 ]
   %B.addr.31 = phi i32* [ %B.addr.24, %for.cond7.preheader ], [ %incdec.ptr, %for.body9 ]
   %conv = trunc i64 %i.07 to i32
@@ -109,27 +125,29 @@ for.body9:                                        ; preds = %for.body9, %for.con
   %add12 = add nsw i64 %i.07, 10
   %arrayidx15 = getelementptr inbounds [100 x [100 x i32]]* %A, i64 10, i64 %add12, i64 %sub
   %0 = load i32* %arrayidx15, align 4
-; CHECK: da analyze - flow [> * * *]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.31, i64 1
   store i32 %0, i32* %B.addr.31, align 4
   %inc = add nsw i64 %l.02, 1
-  %cmp8 = icmp slt i64 %inc, 50
-  br i1 %cmp8, label %for.body9, label %for.inc16
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body9, label %for.inc16
 
 for.inc16:                                        ; preds = %for.body9
+  %scevgep = getelementptr i32* %B.addr.24, i64 50
   %inc17 = add nsw i64 %k.03, 1
-  %cmp5 = icmp slt i64 %inc17, 50
-  br i1 %cmp5, label %for.cond7.preheader, label %for.inc19
+  %exitcond10 = icmp ne i64 %inc17, 50
+  br i1 %exitcond10, label %for.cond7.preheader, label %for.inc19
 
 for.inc19:                                        ; preds = %for.inc16
+  %scevgep9 = getelementptr i32* %B.addr.16, i64 2500
   %inc20 = add nsw i64 %j.05, 1
-  %cmp2 = icmp slt i64 %inc20, 50
-  br i1 %cmp2, label %for.cond4.preheader, label %for.inc22
+  %exitcond12 = icmp ne i64 %inc20, 50
+  br i1 %exitcond12, label %for.cond4.preheader, label %for.inc22
 
 for.inc22:                                        ; preds = %for.inc19
+  %scevgep11 = getelementptr i32* %B.addr.08, i64 125000
   %inc23 = add nsw i64 %i.07, 1
-  %cmp = icmp slt i64 %inc23, 50
-  br i1 %cmp, label %for.cond1.preheader, label %for.end24
+  %exitcond13 = icmp ne i64 %inc23, 50
+  br i1 %exitcond13, label %for.cond1.preheader, label %for.end24
 
 for.end24:                                        ; preds = %for.inc22
   ret void
@@ -139,30 +157,37 @@ for.end24:                                        ; preds = %for.inc22
 ;;  for (long int i = 0; i < 50; i++)
 ;;    for (long int j = 0; j < 50; j++)
 ;;      for (long int k = 0; k < 50; k++)
-;;        for (long int l = 0; l < 50; l++)
-;;          A[i][i][i + k][l] = ...
-;;          ... = A[10][i + 10][j + k][l + 10];
+;;        for (long int l = 0; l < 50; l++) {
+;;          A[i][i][i + k][l] = i;
+;;          *B++ = A[10][i + 10][j + k][l + 10];
 
 define void @sep2([100 x [100 x [100 x i32]]]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc26, %entry
-  %B.addr.08 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc26 ]
+; CHECK: da analyze - consistent output [0 S 0 0|<]!
+; CHECK: da analyze - flow [> * * -10]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [0 * * 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc26
+  %B.addr.08 = phi i32* [ %B, %entry ], [ %scevgep11, %for.inc26 ]
   %i.07 = phi i64 [ 0, %entry ], [ %inc27, %for.inc26 ]
   br label %for.cond4.preheader
 
-for.cond4.preheader:                              ; preds = %for.inc23, %for.cond1.preheader
-  %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %incdec.ptr, %for.inc23 ]
+for.cond4.preheader:                              ; preds = %for.cond1.preheader, %for.inc23
+  %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %scevgep9, %for.inc23 ]
   %j.05 = phi i64 [ 0, %for.cond1.preheader ], [ %inc24, %for.inc23 ]
   br label %for.cond7.preheader
 
-for.cond7.preheader:                              ; preds = %for.inc20, %for.cond4.preheader
-  %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %incdec.ptr, %for.inc20 ]
+for.cond7.preheader:                              ; preds = %for.cond4.preheader, %for.inc20
+  %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %scevgep, %for.inc20 ]
   %k.03 = phi i64 [ 0, %for.cond4.preheader ], [ %inc21, %for.inc20 ]
   br label %for.body9
 
-for.body9:                                        ; preds = %for.body9, %for.cond7.preheader
+for.body9:                                        ; preds = %for.cond7.preheader, %for.body9
   %l.02 = phi i64 [ 0, %for.cond7.preheader ], [ %inc, %for.body9 ]
   %B.addr.31 = phi i32* [ %B.addr.24, %for.cond7.preheader ], [ %incdec.ptr, %for.body9 ]
   %conv = trunc i64 %i.07 to i32
@@ -174,27 +199,29 @@ for.body9:                                        ; preds = %for.body9, %for.con
   %add15 = add nsw i64 %i.07, 10
   %arrayidx19 = getelementptr inbounds [100 x [100 x [100 x i32]]]* %A, i64 10, i64 %add15, i64 %add14, i64 %add13
   %0 = load i32* %arrayidx19, align 4
-; CHECK: da analyze - flow [> * * -10]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.31, i64 1
   store i32 %0, i32* %B.addr.31, align 4
   %inc = add nsw i64 %l.02, 1
-  %cmp8 = icmp slt i64 %inc, 50
-  br i1 %cmp8, label %for.body9, label %for.inc20
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body9, label %for.inc20
 
 for.inc20:                                        ; preds = %for.body9
+  %scevgep = getelementptr i32* %B.addr.24, i64 50
   %inc21 = add nsw i64 %k.03, 1
-  %cmp5 = icmp slt i64 %inc21, 50
-  br i1 %cmp5, label %for.cond7.preheader, label %for.inc23
+  %exitcond10 = icmp ne i64 %inc21, 50
+  br i1 %exitcond10, label %for.cond7.preheader, label %for.inc23
 
 for.inc23:                                        ; preds = %for.inc20
+  %scevgep9 = getelementptr i32* %B.addr.16, i64 2500
   %inc24 = add nsw i64 %j.05, 1
-  %cmp2 = icmp slt i64 %inc24, 50
-  br i1 %cmp2, label %for.cond4.preheader, label %for.inc26
+  %exitcond12 = icmp ne i64 %inc24, 50
+  br i1 %exitcond12, label %for.cond4.preheader, label %for.inc26
 
 for.inc26:                                        ; preds = %for.inc23
+  %scevgep11 = getelementptr i32* %B.addr.08, i64 125000
   %inc27 = add nsw i64 %i.07, 1
-  %cmp = icmp slt i64 %inc27, 50
-  br i1 %cmp, label %for.cond1.preheader, label %for.end28
+  %exitcond13 = icmp ne i64 %inc27, 50
+  br i1 %exitcond13, label %for.cond1.preheader, label %for.end28
 
 for.end28:                                        ; preds = %for.inc26
   ret void
@@ -204,30 +231,37 @@ for.end28:                                        ; preds = %for.inc26
 ;;  for (long int i = 0; i < 50; i++)
 ;;    for (long int j = 0; j < 50; j++)
 ;;      for (long int k = 0; k < 50; k++)
-;;        for (long int l = 0; l < 50; l++)
-;;          A[i][i][i + k][l + k] = ...
-;;          ... = A[10][i + 10][j + k][l + 10];
+;;        for (long int l = 0; l < 50; l++) {
+;;          A[i][i][i + k][l + k] = i;
+;;          *B++ = A[10][i + 10][j + k][l + 10];
 
 define void @sep3([100 x [100 x [100 x i32]]]* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc27, %entry
-  %B.addr.08 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.inc27 ]
+; CHECK: da analyze - consistent output [0 S 0 0|<]!
+; CHECK: da analyze - flow [> * * *]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - input [0 * * 0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader:                              ; preds = %entry, %for.inc27
+  %B.addr.08 = phi i32* [ %B, %entry ], [ %scevgep11, %for.inc27 ]
   %i.07 = phi i64 [ 0, %entry ], [ %inc28, %for.inc27 ]
   br label %for.cond4.preheader
 
-for.cond4.preheader:                              ; preds = %for.inc24, %for.cond1.preheader
-  %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %incdec.ptr, %for.inc24 ]
+for.cond4.preheader:                              ; preds = %for.cond1.preheader, %for.inc24
+  %B.addr.16 = phi i32* [ %B.addr.08, %for.cond1.preheader ], [ %scevgep9, %for.inc24 ]
   %j.05 = phi i64 [ 0, %for.cond1.preheader ], [ %inc25, %for.inc24 ]
   br label %for.cond7.preheader
 
-for.cond7.preheader:                              ; preds = %for.inc21, %for.cond4.preheader
-  %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %incdec.ptr, %for.inc21 ]
+for.cond7.preheader:                              ; preds = %for.cond4.preheader, %for.inc21
+  %B.addr.24 = phi i32* [ %B.addr.16, %for.cond4.preheader ], [ %scevgep, %for.inc21 ]
   %k.03 = phi i64 [ 0, %for.cond4.preheader ], [ %inc22, %for.inc21 ]
   br label %for.body9
 
-for.body9:                                        ; preds = %for.body9, %for.cond7.preheader
+for.body9:                                        ; preds = %for.cond7.preheader, %for.body9
   %l.02 = phi i64 [ 0, %for.cond7.preheader ], [ %inc, %for.body9 ]
   %B.addr.31 = phi i32* [ %B.addr.24, %for.cond7.preheader ], [ %incdec.ptr, %for.body9 ]
   %conv = trunc i64 %i.07 to i32
@@ -240,27 +274,29 @@ for.body9:                                        ; preds = %for.body9, %for.con
   %add16 = add nsw i64 %i.07, 10
   %arrayidx20 = getelementptr inbounds [100 x [100 x [100 x i32]]]* %A, i64 10, i64 %add16, i64 %add15, i64 %add14
   %0 = load i32* %arrayidx20, align 4
-; CHECK: da analyze - flow [> * * *]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.31, i64 1
   store i32 %0, i32* %B.addr.31, align 4
   %inc = add nsw i64 %l.02, 1
-  %cmp8 = icmp slt i64 %inc, 50
-  br i1 %cmp8, label %for.body9, label %for.inc21
+  %exitcond = icmp ne i64 %inc, 50
+  br i1 %exitcond, label %for.body9, label %for.inc21
 
 for.inc21:                                        ; preds = %for.body9
+  %scevgep = getelementptr i32* %B.addr.24, i64 50
   %inc22 = add nsw i64 %k.03, 1
-  %cmp5 = icmp slt i64 %inc22, 50
-  br i1 %cmp5, label %for.cond7.preheader, label %for.inc24
+  %exitcond10 = icmp ne i64 %inc22, 50
+  br i1 %exitcond10, label %for.cond7.preheader, label %for.inc24
 
 for.inc24:                                        ; preds = %for.inc21
+  %scevgep9 = getelementptr i32* %B.addr.16, i64 2500
   %inc25 = add nsw i64 %j.05, 1
-  %cmp2 = icmp slt i64 %inc25, 50
-  br i1 %cmp2, label %for.cond4.preheader, label %for.inc27
+  %exitcond12 = icmp ne i64 %inc25, 50
+  br i1 %exitcond12, label %for.cond4.preheader, label %for.inc27
 
 for.inc27:                                        ; preds = %for.inc24
+  %scevgep11 = getelementptr i32* %B.addr.08, i64 125000
   %inc28 = add nsw i64 %i.07, 1
-  %cmp = icmp slt i64 %inc28, 50
-  br i1 %cmp, label %for.cond1.preheader, label %for.end29
+  %exitcond13 = icmp ne i64 %inc28, 50
+  br i1 %exitcond13, label %for.cond1.preheader, label %for.end29
 
 for.end29:                                        ; preds = %for.inc27
   ret void
diff --git a/test/Analysis/DependenceAnalysis/StrongSIV.ll b/test/Analysis/DependenceAnalysis/StrongSIV.ll
index be336c3..156d55f 100644
--- a/test/Analysis/DependenceAnalysis/StrongSIV.ll
+++ b/test/Analysis/DependenceAnalysis/StrongSIV.ll
@@ -1,143 +1,196 @@
-; RUN: opt < %s -analyze -basicaa -indvars -da | FileCheck %s
+; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
 
 ; ModuleID = 'StrongSIV.bc'
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
 target triple = "x86_64-apple-macosx10.6.0"
 
 
-;;  for (int i = 0; i < n; i++)
-;;    A[i + 2] = ...
-;;    ... = A[i];
+;;  for (int i = 0; i < n; i++) {
+;;    A[i + 2] = i;
+;;    *B++ = A[i];
 
 define void @strong0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp sgt i64 %n, 0
-  br i1 %cmp1, label %for.body, label %for.end
-
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
-  %add = add nsw i32 %i.03, 2
-  %idxprom = sext i32 %add to i64
-  %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
-  store i32 %i.03, i32* %arrayidx, align 4
-  %idxprom2 = sext i32 %i.03 to i64
-  %arrayidx3 = getelementptr inbounds i32* %A, i64 %idxprom2
-  %0 = load i32* %arrayidx3, align 4
+  br i1 %cmp1, label %for.body.preheader, label %for.end
+
+; CHECK: da analyze - consistent output [0|<]!
 ; CHECK: da analyze - consistent flow [2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
+  %0 = add nsw i64 %indvars.iv, 2
+  %arrayidx = getelementptr inbounds i32* %A, i64 %0
+  %1 = trunc i64 %indvars.iv to i32
+  store i32 %1, i32* %arrayidx, align 4
+  %arrayidx3 = getelementptr inbounds i32* %A, i64 %indvars.iv
+  %2 = load i32* %arrayidx3, align 4
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
-  store i32 %0, i32* %B.addr.02, align 4
-  %inc = add nsw i32 %i.03, 1
-  %conv = sext i32 %inc to i64
-  %cmp = icmp slt i64 %conv, %n
-  br i1 %cmp, label %for.body, label %for.end
+  store i32 %2, i32* %B.addr.02, align 4
+  %indvars.iv.next = add i64 %indvars.iv, 1
+  %exitcond = icmp ne i64 %indvars.iv.next, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long int i = 0; i < n; i++)
-;;    A[i + 2] = ...
-;;    ... = A[i];
+;;  for (long int i = 0; i < n; i++) {
+;;    A[i + 2] = i;
+;;    *B++ = A[i];
 
 define void @strong1(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
-  %conv = sext i32 %n to i64
   %cmp1 = icmp sgt i32 %n, 0
-  br i1 %cmp1, label %for.body, label %for.end
+  br i1 %cmp1, label %for.body.preheader, label %for.end
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - consistent flow [2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  %0 = sext i32 %n to i64
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv2 = trunc i64 %i.03 to i32
   %add = add nsw i64 %i.03, 2
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv2, i32* %arrayidx, align 4
   %arrayidx3 = getelementptr inbounds i32* %A, i64 %i.03
-  %0 = load i32* %arrayidx3, align 4
-; CHECK: da analyze - consistent flow [2]!
+  %1 = load i32* %arrayidx3, align 4
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
-  store i32 %0, i32* %B.addr.02, align 4
+  store i32 %1, i32* %B.addr.02, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp slt i64 %inc, %conv
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %0
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < n; i++)
-;;    A[i + 2] = ...
-;;    ... = A[i];
+;;  for (long unsigned i = 0; i < n; i++) {
+;;    A[i + 2] = i;
+;;    *B++ = A[i];
 
 define void @strong2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - consistent flow [2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %add = add i64 %i.03, 2
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.03
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - consistent flow [2]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
 
-for.end:                                          ; preds = %for.body, %entry
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
+
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (int i = 0; i < n; i++)
-;;    A[i + 2] = ...
-;;    ... = A[i];
+;;  for (int i = 0; i < n; i++) {
+;;    A[i + 2] = i;
+;;    *B++ = A[i];
 
 define void @strong3(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp sgt i32 %n, 0
-  br i1 %cmp1, label %for.body, label %for.end
-
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
-  %add = add nsw i32 %i.03, 2
-  %idxprom = sext i32 %add to i64
-  %arrayidx = getelementptr inbounds i32* %A, i64 %idxprom
-  store i32 %i.03, i32* %arrayidx, align 4
-  %idxprom1 = sext i32 %i.03 to i64
-  %arrayidx2 = getelementptr inbounds i32* %A, i64 %idxprom1
-  %0 = load i32* %arrayidx2, align 4
+  br i1 %cmp1, label %for.body.preheader, label %for.end
+
+; CHECK: da analyze - consistent output [0|<]!
 ; CHECK: da analyze - consistent flow [2]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
+  %0 = add nsw i64 %indvars.iv, 2
+  %arrayidx = getelementptr inbounds i32* %A, i64 %0
+  %1 = trunc i64 %indvars.iv to i32
+  store i32 %1, i32* %arrayidx, align 4
+  %arrayidx2 = getelementptr inbounds i32* %A, i64 %indvars.iv
+  %2 = load i32* %arrayidx2, align 4
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
-  store i32 %0, i32* %B.addr.02, align 4
-  %inc = add nsw i32 %i.03, 1
-  %cmp = icmp slt i32 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  store i32 %2, i32* %B.addr.02, align 4
+  %indvars.iv.next = add i64 %indvars.iv, 1
+  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
+  %exitcond = icmp ne i32 %lftr.wideiv, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 19; i++)
-;;    A[i + 19] = ...
-;;    ... = A[i];
+;;  for (long unsigned i = 0; i < 19; i++) {
+;;    A[i + 19] = i;
+;;    *B++ = A[i];
 
 define void @strong4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -146,27 +199,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.02
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 19
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 19
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 20; i++)
-;;    A[i + 19] = ...
-;;    ... = A[i];
+;;  for (long unsigned i = 0; i < 20; i++) {
+;;    A[i + 19] = i;
+;;    *B++ = A[i];
 
 define void @strong5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - consistent flow [19]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -175,27 +234,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.02
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - consistent flow [19]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 20
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 20
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 20; i++)
-;;    A[2*i + 6] = ...
-;;    ... = A[2*i];
+;;  for (long unsigned i = 0; i < 20; i++) {
+;;    A[2*i + 6] = i;
+;;    *B++ = A[2*i];
 
 define void @strong6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - consistent flow [3]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -206,27 +271,33 @@ for.body:                                         ; preds = %for.body, %entry
   %mul1 = shl i64 %i.02, 1
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %mul1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - consistent flow [3]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 20
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 20
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 20; i++)
-;;    A[2*i + 7] = ...
-;;    ... = A[2*i];
+;;  for (long unsigned i = 0; i < 20; i++) {
+;;    A[2*i + 7] = i;
+;;    *B++ = A[2*i];
 
 define void @strong7(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -237,27 +308,33 @@ for.body:                                         ; preds = %for.body, %entry
   %mul1 = shl i64 %i.02, 1
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %mul1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 20
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 20
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 20; i++)
-;;    A[i + n] = ...
-;;    ... = A[i];
+;;  for (long unsigned i = 0; i < 20; i++) {
+;;    A[i + n] = i;
+;;    *B++ = A[i];
 
 define void @strong8(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - consistent flow [%n|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -266,30 +343,39 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %i.02
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - consistent flow [%n|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 20
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 20
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < n; i++)
-;;    A[i + n] = ...
-;;    ... = A[i + 2*n];
+;;  for (long unsigned i = 0; i < n; i++) {
+;;    A[i + n] = i;
+;;    *B++ = A[i + 2*n];
 
 define void @strong9(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %add = add i64 %i.03, %n
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
@@ -298,27 +384,36 @@ for.body:                                         ; preds = %for.body, %entry
   %add1 = add i64 %i.03, %mul
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %add1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 1000; i++)
-;;    A[n*i + 5] = ...
-;;    ... = A[n*i + 5];
+;;  for (long unsigned i = 0; i < 1000; i++) {
+;;    A[n*i + 5] = i;
+;;    *B++ = A[n*i + 5];
 
 define void @strong10(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - consistent flow [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -330,12 +425,11 @@ for.body:                                         ; preds = %for.body, %entry
   %add2 = add i64 %mul1, 5
   %arrayidx3 = getelementptr inbounds i32* %A, i64 %add2
   %0 = load i32* %arrayidx3, align 4
-; CHECK: da analyze - consistent flow [0|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 1000
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 1000
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
diff --git a/test/Analysis/DependenceAnalysis/SymbolicRDIV.ll b/test/Analysis/DependenceAnalysis/SymbolicRDIV.ll
index 2a1b4e7..35c17b9 100644
--- a/test/Analysis/DependenceAnalysis/SymbolicRDIV.ll
+++ b/test/Analysis/DependenceAnalysis/SymbolicRDIV.ll
@@ -6,65 +6,99 @@ target triple = "x86_64-apple-macosx10.6.0"
 
 
 ;;  for (long int i = 0; i < n1; i++)
-;;    A[2*i + n1] = ...
+;;    A[2*i + n1] = i;
 ;;  for (long int j = 0; j < n2; j++)
-;;    ... = A[3*j + 3*n1];
+;;    *B++ = A[3*j + 3*n1];
 
 define void @symbolicrdiv0(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
 entry:
   %cmp4 = icmp eq i64 %n1, 0
-  br i1 %cmp4, label %for.cond1.preheader, label %for.body
+  br i1 %cmp4, label %for.cond1.preheader, label %for.body.preheader
 
-for.cond1.preheader:                              ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.cond1.preheader.loopexit:                     ; preds = %for.body
+  br label %for.cond1.preheader
+
+for.cond1.preheader:                              ; preds = %for.cond1.preheader.loopexit, %entry
   %cmp21 = icmp eq i64 %n2, 0
-  br i1 %cmp21, label %for.end11, label %for.body4
+  br i1 %cmp21, label %for.end11, label %for.body4.preheader
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
+for.body4.preheader:                              ; preds = %for.cond1.preheader
+  br label %for.body4
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
   %conv = trunc i64 %i.05 to i32
   %mul = shl nsw i64 %i.05, 1
   %add = add i64 %mul, %n1
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.05, 1
-  %cmp = icmp ult i64 %inc, %n1
-  br i1 %cmp, label %for.body, label %for.cond1.preheader
+  %exitcond = icmp ne i64 %inc, %n1
+  br i1 %exitcond, label %for.body, label %for.cond1.preheader.loopexit
 
-for.body4:                                        ; preds = %for.body4, %for.cond1.preheader
-  %j.03 = phi i64 [ %inc10, %for.body4 ], [ 0, %for.cond1.preheader ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.cond1.preheader ]
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.03 = phi i64 [ %inc10, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %mul56 = add i64 %j.03, %n1
   %add7 = mul i64 %mul56, 3
   %arrayidx8 = getelementptr inbounds i32* %A, i64 %add7
   %0 = load i32* %arrayidx8, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc10 = add nsw i64 %j.03, 1
-  %cmp2 = icmp ult i64 %inc10, %n2
-  br i1 %cmp2, label %for.body4, label %for.end11
+  %exitcond7 = icmp ne i64 %inc10, %n2
+  br i1 %exitcond7, label %for.body4, label %for.end11.loopexit
+
+for.end11.loopexit:                               ; preds = %for.body4
+  br label %for.end11
 
-for.end11:                                        ; preds = %for.body4, %for.cond1.preheader
+for.end11:                                        ; preds = %for.end11.loopexit, %for.cond1.preheader
   ret void
 }
 
 
 ;;  for (long int i = 0; i < n1; i++)
-;;    A[2*i + 5*n2] = ...
+;;    A[2*i + 5*n2] = i;
 ;;  for (long int j = 0; j < n2; j++)
-;;    ... = A[3*j + 2*n2];
+;;    *B++ = A[3*j + 2*n2];
 
 define void @symbolicrdiv1(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
 entry:
   %cmp4 = icmp eq i64 %n1, 0
-  br i1 %cmp4, label %for.cond2.preheader, label %for.body
+  br i1 %cmp4, label %for.cond2.preheader, label %for.body.preheader
 
-for.cond2.preheader:                              ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.cond2.preheader.loopexit:                     ; preds = %for.body
+  br label %for.cond2.preheader
+
+for.cond2.preheader:                              ; preds = %for.cond2.preheader.loopexit, %entry
   %cmp31 = icmp eq i64 %n2, 0
-  br i1 %cmp31, label %for.end12, label %for.body5
+  br i1 %cmp31, label %for.end12, label %for.body5.preheader
+
+for.body5.preheader:                              ; preds = %for.cond2.preheader
+  br label %for.body5
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
   %conv = trunc i64 %i.05 to i32
   %mul = shl nsw i64 %i.05, 1
   %mul1 = mul i64 %n2, 5
@@ -72,220 +106,307 @@ for.body:                                         ; preds = %for.body, %entry
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.05, 1
-  %cmp = icmp ult i64 %inc, %n1
-  br i1 %cmp, label %for.body, label %for.cond2.preheader
+  %exitcond = icmp ne i64 %inc, %n1
+  br i1 %exitcond, label %for.body, label %for.cond2.preheader.loopexit
 
-for.body5:                                        ; preds = %for.body5, %for.cond2.preheader
-  %j.03 = phi i64 [ %inc11, %for.body5 ], [ 0, %for.cond2.preheader ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body5 ], [ %B, %for.cond2.preheader ]
+for.body5:                                        ; preds = %for.body5.preheader, %for.body5
+  %j.03 = phi i64 [ %inc11, %for.body5 ], [ 0, %for.body5.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body5 ], [ %B, %for.body5.preheader ]
   %mul6 = mul nsw i64 %j.03, 3
   %mul7 = shl i64 %n2, 1
   %add8 = add i64 %mul6, %mul7
   %arrayidx9 = getelementptr inbounds i32* %A, i64 %add8
   %0 = load i32* %arrayidx9, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc11 = add nsw i64 %j.03, 1
-  %cmp3 = icmp ult i64 %inc11, %n2
-  br i1 %cmp3, label %for.body5, label %for.end12
+  %exitcond6 = icmp ne i64 %inc11, %n2
+  br i1 %exitcond6, label %for.body5, label %for.end12.loopexit
 
-for.end12:                                        ; preds = %for.body5, %for.cond2.preheader
+for.end12.loopexit:                               ; preds = %for.body5
+  br label %for.end12
+
+for.end12:                                        ; preds = %for.end12.loopexit, %for.cond2.preheader
   ret void
 }
 
 
 ;;  for (long int i = 0; i < n1; i++)
-;;    A[2*i - n2] = ...
+;;    A[2*i - n2] = i;
 ;;  for (long int j = 0; j < n2; j++)
-;;    ... = A[-j + 2*n1];
+;;    *B++ = A[-j + 2*n1];
 
 define void @symbolicrdiv2(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
 entry:
   %cmp4 = icmp eq i64 %n1, 0
-  br i1 %cmp4, label %for.cond1.preheader, label %for.body
+  br i1 %cmp4, label %for.cond1.preheader, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
 
-for.cond1.preheader:                              ; preds = %for.body, %entry
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.cond1.preheader.loopexit:                     ; preds = %for.body
+  br label %for.cond1.preheader
+
+for.cond1.preheader:                              ; preds = %for.cond1.preheader.loopexit, %entry
   %cmp21 = icmp eq i64 %n2, 0
-  br i1 %cmp21, label %for.end10, label %for.body4
+  br i1 %cmp21, label %for.end10, label %for.body4.preheader
+
+for.body4.preheader:                              ; preds = %for.cond1.preheader
+  br label %for.body4
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
   %conv = trunc i64 %i.05 to i32
   %mul = shl nsw i64 %i.05, 1
   %sub = sub i64 %mul, %n2
   %arrayidx = getelementptr inbounds i32* %A, i64 %sub
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.05, 1
-  %cmp = icmp ult i64 %inc, %n1
-  br i1 %cmp, label %for.body, label %for.cond1.preheader
+  %exitcond = icmp ne i64 %inc, %n1
+  br i1 %exitcond, label %for.body, label %for.cond1.preheader.loopexit
 
-for.body4:                                        ; preds = %for.body4, %for.cond1.preheader
-  %j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.cond1.preheader ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.cond1.preheader ]
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %mul6 = shl i64 %n1, 1
   %add = sub i64 %mul6, %j.03
   %arrayidx7 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx7, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc9 = add nsw i64 %j.03, 1
-  %cmp2 = icmp ult i64 %inc9, %n2
-  br i1 %cmp2, label %for.body4, label %for.end10
+  %exitcond6 = icmp ne i64 %inc9, %n2
+  br i1 %exitcond6, label %for.body4, label %for.end10.loopexit
+
+for.end10.loopexit:                               ; preds = %for.body4
+  br label %for.end10
 
-for.end10:                                        ; preds = %for.body4, %for.cond1.preheader
+for.end10:                                        ; preds = %for.end10.loopexit, %for.cond1.preheader
   ret void
 }
 
 
 ;;  for (long int i = 0; i < n1; i++)
-;;    A[-i + n2] = ...
+;;    A[-i + n2] = i;
 ;;  for (long int j = 0; j < n2; j++)
-;;    ... = A[j - n1];
+;;    *B++ = A[j - n1];
 
 define void @symbolicrdiv3(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
 entry:
   %cmp4 = icmp eq i64 %n1, 0
-  br i1 %cmp4, label %for.cond1.preheader, label %for.body
+  br i1 %cmp4, label %for.cond1.preheader, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.cond1.preheader.loopexit:                     ; preds = %for.body
+  br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.body, %entry
+for.cond1.preheader:                              ; preds = %for.cond1.preheader.loopexit, %entry
   %cmp21 = icmp eq i64 %n2, 0
-  br i1 %cmp21, label %for.end9, label %for.body4
+  br i1 %cmp21, label %for.end9, label %for.body4.preheader
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
+for.body4.preheader:                              ; preds = %for.cond1.preheader
+  br label %for.body4
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
   %conv = trunc i64 %i.05 to i32
   %add = sub i64 %n2, %i.05
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.05, 1
-  %cmp = icmp ult i64 %inc, %n1
-  br i1 %cmp, label %for.body, label %for.cond1.preheader
+  %exitcond = icmp ne i64 %inc, %n1
+  br i1 %exitcond, label %for.body, label %for.cond1.preheader.loopexit
 
-for.body4:                                        ; preds = %for.body4, %for.cond1.preheader
-  %j.03 = phi i64 [ %inc8, %for.body4 ], [ 0, %for.cond1.preheader ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.cond1.preheader ]
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.03 = phi i64 [ %inc8, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %sub5 = sub i64 %j.03, %n1
   %arrayidx6 = getelementptr inbounds i32* %A, i64 %sub5
   %0 = load i32* %arrayidx6, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc8 = add nsw i64 %j.03, 1
-  %cmp2 = icmp ult i64 %inc8, %n2
-  br i1 %cmp2, label %for.body4, label %for.end9
+  %exitcond6 = icmp ne i64 %inc8, %n2
+  br i1 %exitcond6, label %for.body4, label %for.end9.loopexit
+
+for.end9.loopexit:                                ; preds = %for.body4
+  br label %for.end9
 
-for.end9:                                         ; preds = %for.body4, %for.cond1.preheader
+for.end9:                                         ; preds = %for.end9.loopexit, %for.cond1.preheader
   ret void
 }
 
 
 ;;  for (long int i = 0; i < n1; i++)
-;;    A[-i + 2*n1] = ...
+;;    A[-i + 2*n1] = i;
 ;;  for (long int j = 0; j < n2; j++)
-;;    ... = A[-j + n1];
+;;    *B++ = A[-j + n1];
 
 define void @symbolicrdiv4(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
 entry:
   %cmp4 = icmp eq i64 %n1, 0
-  br i1 %cmp4, label %for.cond1.preheader, label %for.body
+  br i1 %cmp4, label %for.cond1.preheader, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
 
-for.cond1.preheader:                              ; preds = %for.body, %entry
+for.cond1.preheader.loopexit:                     ; preds = %for.body
+  br label %for.cond1.preheader
+
+for.cond1.preheader:                              ; preds = %for.cond1.preheader.loopexit, %entry
   %cmp21 = icmp eq i64 %n2, 0
-  br i1 %cmp21, label %for.end10, label %for.body4
+  br i1 %cmp21, label %for.end10, label %for.body4.preheader
+
+for.body4.preheader:                              ; preds = %for.cond1.preheader
+  br label %for.body4
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
   %conv = trunc i64 %i.05 to i32
   %mul = shl i64 %n1, 1
   %add = sub i64 %mul, %i.05
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.05, 1
-  %cmp = icmp ult i64 %inc, %n1
-  br i1 %cmp, label %for.body, label %for.cond1.preheader
+  %exitcond = icmp ne i64 %inc, %n1
+  br i1 %exitcond, label %for.body, label %for.cond1.preheader.loopexit
 
-for.body4:                                        ; preds = %for.body4, %for.cond1.preheader
-  %j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.cond1.preheader ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.cond1.preheader ]
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %add6 = sub i64 %n1, %j.03
   %arrayidx7 = getelementptr inbounds i32* %A, i64 %add6
   %0 = load i32* %arrayidx7, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc9 = add nsw i64 %j.03, 1
-  %cmp2 = icmp ult i64 %inc9, %n2
-  br i1 %cmp2, label %for.body4, label %for.end10
+  %exitcond6 = icmp ne i64 %inc9, %n2
+  br i1 %exitcond6, label %for.body4, label %for.end10.loopexit
 
-for.end10:                                        ; preds = %for.body4, %for.cond1.preheader
+for.end10.loopexit:                               ; preds = %for.body4
+  br label %for.end10
+
+for.end10:                                        ; preds = %for.end10.loopexit, %for.cond1.preheader
   ret void
 }
 
 
 ;;  for (long int i = 0; i < n1; i++)
-;;    A[-i + n2] = ...
+;;    A[-i + n2] = i;
 ;;  for (long int j = 0; j < n2; j++)
-;;    ... = A[-j + 2*n2];
+;;    *B++ = A[-j + 2*n2];
 
 define void @symbolicrdiv5(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
 entry:
   %cmp4 = icmp eq i64 %n1, 0
-  br i1 %cmp4, label %for.cond1.preheader, label %for.body
+  br i1 %cmp4, label %for.cond1.preheader, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
 
-for.cond1.preheader:                              ; preds = %for.body, %entry
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.cond1.preheader.loopexit:                     ; preds = %for.body
+  br label %for.cond1.preheader
+
+for.cond1.preheader:                              ; preds = %for.cond1.preheader.loopexit, %entry
   %cmp21 = icmp eq i64 %n2, 0
-  br i1 %cmp21, label %for.end10, label %for.body4
+  br i1 %cmp21, label %for.end10, label %for.body4.preheader
+
+for.body4.preheader:                              ; preds = %for.cond1.preheader
+  br label %for.body4
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.05 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
   %conv = trunc i64 %i.05 to i32
   %add = sub i64 %n2, %i.05
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 %conv, i32* %arrayidx, align 4
   %inc = add nsw i64 %i.05, 1
-  %cmp = icmp ult i64 %inc, %n1
-  br i1 %cmp, label %for.body, label %for.cond1.preheader
+  %exitcond = icmp ne i64 %inc, %n1
+  br i1 %exitcond, label %for.body, label %for.cond1.preheader.loopexit
 
-for.body4:                                        ; preds = %for.body4, %for.cond1.preheader
-  %j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.cond1.preheader ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.cond1.preheader ]
+for.body4:                                        ; preds = %for.body4.preheader, %for.body4
+  %j.03 = phi i64 [ %inc9, %for.body4 ], [ 0, %for.body4.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body4 ], [ %B, %for.body4.preheader ]
   %mul = shl i64 %n2, 1
   %add6 = sub i64 %mul, %j.03
   %arrayidx7 = getelementptr inbounds i32* %A, i64 %add6
   %0 = load i32* %arrayidx7, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc9 = add nsw i64 %j.03, 1
-  %cmp2 = icmp ult i64 %inc9, %n2
-  br i1 %cmp2, label %for.body4, label %for.end10
+  %exitcond6 = icmp ne i64 %inc9, %n2
+  br i1 %exitcond6, label %for.body4, label %for.end10.loopexit
+
+for.end10.loopexit:                               ; preds = %for.body4
+  br label %for.end10
 
-for.end10:                                        ; preds = %for.body4, %for.cond1.preheader
+for.end10:                                        ; preds = %for.end10.loopexit, %for.cond1.preheader
   ret void
 }
 
 
 ;;  for (long int i = 0; i < n1; i++)
-;;    for (long int j = 0; j < n2; j++)
-;;      A[j -i + n2] = ...
-;;      ... = A[2*n2];
+;;    for (long int j = 0; j < n2; j++) {
+;;      A[j -i + n2] = i;
+;;      *B++ = A[2*n2];
 
 define void @symbolicrdiv6(i32* %A, i32* %B, i64 %n1, i64 %n2) nounwind uwtable ssp {
 entry:
   %cmp4 = icmp eq i64 %n1, 0
-  br i1 %cmp4, label %for.end7, label %for.cond1.preheader
+  br i1 %cmp4, label %for.end7, label %for.cond1.preheader.preheader
+
+; CHECK: da analyze - output [* *|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.cond1.preheader.preheader:                    ; preds = %entry
+  br label %for.cond1.preheader
 
-for.cond1.preheader:                              ; preds = %for.inc5, %entry
-  %B.addr.06 = phi i32* [ %B.addr.1.lcssa, %for.inc5 ], [ %B, %entry ]
-  %i.05 = phi i64 [ %inc6, %for.inc5 ], [ 0, %entry ]
+for.cond1.preheader:                              ; preds = %for.cond1.preheader.preheader, %for.inc5
+  %B.addr.06 = phi i32* [ %B.addr.1.lcssa, %for.inc5 ], [ %B, %for.cond1.preheader.preheader ]
+  %i.05 = phi i64 [ %inc6, %for.inc5 ], [ 0, %for.cond1.preheader.preheader ]
   %cmp21 = icmp eq i64 %n2, 0
-  br i1 %cmp21, label %for.inc5, label %for.body3
+  br i1 %cmp21, label %for.inc5, label %for.body3.preheader
+
+for.body3.preheader:                              ; preds = %for.cond1.preheader
+  br label %for.body3
 
-for.body3:                                        ; preds = %for.body3, %for.cond1.preheader
-  %j.03 = phi i64 [ %inc, %for.body3 ], [ 0, %for.cond1.preheader ]
-  %B.addr.12 = phi i32* [ %incdec.ptr, %for.body3 ], [ %B.addr.06, %for.cond1.preheader ]
+for.body3:                                        ; preds = %for.body3.preheader, %for.body3
+  %j.03 = phi i64 [ %inc, %for.body3 ], [ 0, %for.body3.preheader ]
+  %B.addr.12 = phi i32* [ %incdec.ptr, %for.body3 ], [ %B.addr.06, %for.body3.preheader ]
   %conv = trunc i64 %i.05 to i32
   %sub = sub nsw i64 %j.03, %i.05
   %add = add i64 %sub, %n2
@@ -294,19 +415,25 @@ for.body3:                                        ; preds = %for.body3, %for.con
   %mul = shl i64 %n2, 1
   %arrayidx4 = getelementptr inbounds i32* %A, i64 %mul
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.12, i64 1
   store i32 %0, i32* %B.addr.12, align 4
   %inc = add nsw i64 %j.03, 1
-  %cmp2 = icmp ult i64 %inc, %n2
-  br i1 %cmp2, label %for.body3, label %for.inc5
+  %exitcond = icmp ne i64 %inc, %n2
+  br i1 %exitcond, label %for.body3, label %for.inc5.loopexit
+
+for.inc5.loopexit:                                ; preds = %for.body3
+  %scevgep = getelementptr i32* %B.addr.06, i64 %n2
+  br label %for.inc5
 
-for.inc5:                                         ; preds = %for.body3, %for.cond1.preheader
-  %B.addr.1.lcssa = phi i32* [ %B.addr.06, %for.cond1.preheader ], [ %incdec.ptr, %for.body3 ]
+for.inc5:                                         ; preds = %for.inc5.loopexit, %for.cond1.preheader
+  %B.addr.1.lcssa = phi i32* [ %B.addr.06, %for.cond1.preheader ], [ %scevgep, %for.inc5.loopexit ]
   %inc6 = add nsw i64 %i.05, 1
-  %cmp = icmp ult i64 %inc6, %n1
-  br i1 %cmp, label %for.cond1.preheader, label %for.end7
+  %exitcond7 = icmp ne i64 %inc6, %n1
+  br i1 %exitcond7, label %for.cond1.preheader, label %for.end7.loopexit
+
+for.end7.loopexit:                                ; preds = %for.inc5
+  br label %for.end7
 
-for.end7:                                         ; preds = %for.inc5, %entry
+for.end7:                                         ; preds = %for.end7.loopexit, %entry
   ret void
 }
diff --git a/test/Analysis/DependenceAnalysis/SymbolicSIV.ll b/test/Analysis/DependenceAnalysis/SymbolicSIV.ll
index ee2343f..619abd5 100644
--- a/test/Analysis/DependenceAnalysis/SymbolicSIV.ll
+++ b/test/Analysis/DependenceAnalysis/SymbolicSIV.ll
@@ -5,18 +5,28 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3
 target triple = "x86_64-apple-macosx10.6.0"
 
 
-;;  for (long int i = 0; i < n; i++)
-;;    A[2*i + n] = ...
-;;    ... = A[3*i + 3*n];
+;;  for (long int i = 0; i < n; i++) {
+;;    A[2*i + n] = i;
+;;    *B++ = A[3*i + 3*n];
 
 define void @symbolicsiv0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %mul = shl nsw i64 %i.03, 1
   %add = add i64 %mul, %n
@@ -26,30 +36,42 @@ for.body:                                         ; preds = %for.body, %entry
   %add3 = mul i64 %mul14, 3
   %arrayidx4 = getelementptr inbounds i32* %A, i64 %add3
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long int i = 0; i < n; i++)
-;;    A[2*i + 5*n] = ...
-;;    ... = A[3*i + 2*n];
+;;  for (long int i = 0; i < n; i++) {
+;;    A[2*i + 5*n] = i;
+;;    *B++ = A[3*i + 2*n];
 
 define void @symbolicsiv1(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %mul = shl nsw i64 %i.03, 1
   %mul1 = mul i64 %n, 5
@@ -61,30 +83,42 @@ for.body:                                         ; preds = %for.body, %entry
   %add4 = add i64 %mul2, %mul3
   %arrayidx5 = getelementptr inbounds i32* %A, i64 %add4
   %0 = load i32* %arrayidx5, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long int i = 0; i < n; i++)
-;;    A[2*i - n] = ...
-;;    ... = A[-i + 2*n];
+;;  for (long int i = 0; i < n; i++) {
+;;    A[2*i - n] = i;
+;;    *B++ = A[-i + 2*n];
 
 define void @symbolicsiv2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %mul = shl nsw i64 %i.03, 1
   %sub = sub i64 %mul, %n
@@ -94,30 +128,42 @@ for.body:                                         ; preds = %for.body, %entry
   %add = sub i64 %mul2, %i.03
   %arrayidx3 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx3, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long int i = 0; i < n; i++)
-;;    A[-2*i + n + 1] = ...
-;;    ... = A[i - 2*n];
+;;  for (long int i = 0; i < n; i++) {
+;;    A[-2*i + n + 1] = i;
+;;    *B++ = A[i - 2*n];
 
 define void @symbolicsiv3(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, -2
   %add = add i64 %mul, %n
@@ -128,30 +174,42 @@ for.body:                                         ; preds = %for.body, %entry
   %sub = sub i64 %i.03, %mul2
   %arrayidx3 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx3, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
 
-for.end:                                          ; preds = %for.body, %entry
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
+
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long int i = 0; i < n; i++)
-;;    A[-2*i + 3*n] = ...
-;;    ... = A[-i + n];
+;;  for (long int i = 0; i < n; i++) {
+;;    A[-2*i + 3*n] = i;
+;;    *B++ = A[-i + n];
 
 define void @symbolicsiv4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, -2
   %mul1 = mul i64 %n, 3
@@ -161,30 +219,42 @@ for.body:                                         ; preds = %for.body, %entry
   %add2 = sub i64 %n, %i.03
   %arrayidx3 = getelementptr inbounds i32* %A, i64 %add2
   %0 = load i32* %arrayidx3, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long int i = 0; i < n; i++)
-;;    A[-2*i - 2*n] = ...
-;;    ... = A[-i - n];
+;;  for (long int i = 0; i < n; i++) {
+;;    A[-2*i - 2*n] = i;
+;;    *B++ = A[-i - n];
 
 define void @symbolicsiv5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul nsw i64 %i.03, -2
   %mul1 = shl i64 %n, 1
@@ -195,32 +265,44 @@ for.body:                                         ; preds = %for.body, %entry
   %sub3 = sub i64 %sub2, %n
   %arrayidx4 = getelementptr inbounds i32* %A, i64 %sub3
   %0 = load i32* %arrayidx4, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add nsw i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
 ;; why doesn't SCEV package understand that n >= 0?
-;;void weaktest(int *A, int *B, long unsigned n)
-;;  for (long unsigned i = 0; i < n; i++)
-;;    A[i + n + 1] = ...
-;;    ... = A[-i];
+;;  for (long unsigned i = 0; i < n; i++) {
+;;    A[i + n + 1] = i;
+;;    *B++ = A[-i];
 
 define void @weaktest(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [*|<] splitable!
+; CHECK: da analyze - split level = 1, iteration = ((0 smax (-1 + (-1 * %n))) /u 2)!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %add = add i64 %i.03, %n
   %add1 = add i64 %add, 1
@@ -229,29 +311,36 @@ for.body:                                         ; preds = %for.body, %entry
   %sub = sub i64 0, %i.03
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - flow [*|<] splitable!
-; CHECK: da analyze - split level = 1, iteration = ((0 smax (-1 + (-1 * %n))) /u 2)!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  void symbolicsiv6(int *A, int *B, long unsigned n, long unsigned N, long unsigned M) {
-;;    for (long int i = 0; i < n; i++) {
-;;      A[4*N*i + M] = i;
-;;      *B++ = A[4*N*i + 3*M + 1];
+;;  for (long int i = 0; i < n; i++) {
+;;    A[4*N*i + M] = i;
+;;    *B++ = A[4*N*i + 3*M + 1];
 
 define void @symbolicsiv6(i32* %A, i32* %B, i64 %n, i64 %N, i64 %M) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
   br i1 %cmp1, label %for.end, label %for.body.preheader
 
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.body.preheader:                               ; preds = %entry
   br label %for.body
 
@@ -272,7 +361,6 @@ for.body:                                         ; preds = %for.body.preheader,
   %arrayidx7 = getelementptr inbounds i32* %A, i64 %add6
   %0 = load i32* %arrayidx7, align 4
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
-; CHECK: da analyze - none!
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add nsw i64 %i.03, 1
   %exitcond = icmp ne i64 %inc, %n
@@ -286,16 +374,22 @@ for.end:                                          ; preds = %for.end.loopexit, %
 }
 
 
-;;  void symbolicsiv7(int *A, int *B, long unsigned n, long unsigned N, long unsigned M) {
-;;    for (long int i = 0; i < n; i++) {
-;;      A[2*N*i + M] = i;
-;;      *B++ = A[2*N*i - 3*M + 2];
+;;  for (long int i = 0; i < n; i++) {
+;;    A[2*N*i + M] = i;
+;;    *B++ = A[2*N*i - 3*M + 2];
 
 define void @symbolicsiv7(i32* %A, i32* %B, i64 %n, i64 %N, i64 %M) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
   br i1 %cmp1, label %for.end, label %for.body.preheader
 
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [<>]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
 for.body.preheader:                               ; preds = %entry
   br label %for.body
 
@@ -316,7 +410,6 @@ for.body:                                         ; preds = %for.body.preheader,
   %arrayidx6 = getelementptr inbounds i32* %A, i64 %add5
   %1 = load i32* %arrayidx6, align 4
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
-; CHECK: da analyze - flow [<>]!
   store i32 %1, i32* %B.addr.02, align 4
   %inc = add nsw i64 %i.03, 1
   %exitcond = icmp ne i64 %inc, %n
diff --git a/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll b/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll
index 343e8f4..1bc6c16 100644
--- a/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll
+++ b/test/Analysis/DependenceAnalysis/WeakCrossingSIV.ll
@@ -5,18 +5,28 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3
 target triple = "x86_64-apple-macosx10.6.0"
 
 
-;;  for (long unsigned i = 0; i < n; i++)
-;;    A[1 + n*i] = ...
-;;    ... = A[1 - n*i];
+;;  for (long unsigned i = 0; i < n; i++) {
+;;    A[1 + n*i] = i;
+;;    *B++ = A[1 - n*i];
 
 define void @weakcrossing0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul i64 %i.03, %n
   %add = add i64 %mul, 1
@@ -26,30 +36,43 @@ for.body:                                         ; preds = %for.body, %entry
   %sub = sub i64 1, %mul1
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - flow [0|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < n; i++)
-;;    A[n + i] = ...
-;;    ... = A[1 + n - i];
+;;  for (long unsigned i = 0; i < n; i++) {
+;;    A[n + i] = i;
+;;    *B++ = A[1 + n - i];
 
 define void @weakcrossing1(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [<>] splitable!
+; CHECK: da analyze - split level = 1, iteration = 0!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %add = add i64 %i.03, %n
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
@@ -58,28 +81,36 @@ for.body:                                         ; preds = %for.body, %entry
   %sub = sub i64 %add1, %i.03
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - flow [<>] splitable!
-; CHECK: da analyze - split level = 1, iteration = 0!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 3; i++)
-;;    A[i] = ...
-;;    ... = A[6 - i];
+;;  for (long unsigned i = 0; i < 3; i++) {
+;;    A[i] = i;
+;;    *B++ = A[6 - i];
 
 define void @weakcrossing2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -88,27 +119,33 @@ for.body:                                         ; preds = %for.body, %entry
   %sub = sub i64 6, %i.02
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 3
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 3
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 4; i++)
-;;    A[i] = ...
-;;    ... = A[6 - i];
+;;  for (long unsigned i = 0; i < 4; i++) {
+;;    A[i] = i;
+;;    *B++ = A[6 - i];
 
 define void @weakcrossing3(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -117,27 +154,33 @@ for.body:                                         ; preds = %for.body, %entry
   %sub = sub i64 6, %i.02
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [0|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 4
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 4
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 10; i++)
-;;    A[i] = ...
-;;    ... = A[-6 - i];
+;;  for (long unsigned i = 0; i < 10; i++) {
+;;    A[i] = i;
+;;    *B++ = A[-6 - i];
 
 define void @weakcrossing4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -146,30 +189,39 @@ for.body:                                         ; preds = %for.body, %entry
   %sub = sub i64 -6, %i.02
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 10
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 10
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < n; i++)
-;;    A[3*i] = ...
-;;    ... = A[5 - 3*i];
+;;  for (long unsigned i = 0; i < n; i++) {
+;;    A[3*i] = i;
+;;    *B++ = A[5 - 3*i];
 
 define void @weakcrossing5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul i64 %i.03, 3
   %arrayidx = getelementptr inbounds i32* %A, i64 %mul
@@ -178,27 +230,37 @@ for.body:                                         ; preds = %for.body, %entry
   %sub = add i64 %0, 5
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %sub
   %1 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %1, i32* %B.addr.02, align 4
   %inc = add i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
 
-for.end:                                          ; preds = %for.body, %entry
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
+
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 4; i++)
-;;    A[i] = ...
-;;    ... = A[5 - i];
+;;  for (long unsigned i = 0; i < 4; i++) {
+;;    A[i] = i;
+;;    *B++ = A[5 - i];
 
 define void @weakcrossing6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [<>] splitable!
+; CHECK: da analyze - split level = 1, iteration = 2!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -207,13 +269,11 @@ for.body:                                         ; preds = %for.body, %entry
   %sub = sub i64 5, %i.02
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %sub
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [<>] splitable!
-; CHECK: da analyze - split level = 1, iteration = 2!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 4
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 4
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
diff --git a/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll b/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll
index a598716..064d88e 100644
--- a/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll
+++ b/test/Analysis/DependenceAnalysis/WeakZeroDstSIV.ll
@@ -5,15 +5,22 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3
 target triple = "x86_64-apple-macosx10.6.0"
 
 
-;;  for (long unsigned i = 0; i < 30; i++)
-;;    A[2*i + 10] = ...
-;;    ... = A[10];
+;;  for (long unsigned i = 0; i < 30; i++) {
+;;    A[2*i + 10] = i;
+;;    *B++ = A[10];
 
 define void @weakzerodst0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [p<=|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -23,30 +30,39 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 10
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [p<=|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 30
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 30
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < n; i++)
-;;    A[n*i + 10] = ...
-;;    ... = A[10];
+;;  for (long unsigned i = 0; i < n; i++) {
+;;    A[n*i + 10] = i;
+;;    *B++ = A[10];
 
 define void @weakzerodst1(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [p<=|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul i64 %i.03, %n
   %add = add i64 %mul, 10
@@ -54,27 +70,36 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 10
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [p<=|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 5; i++)
-;;    A[2*i] = ...
-;;    ... = A[10];
+;;  for (long unsigned i = 0; i < 5; i++) {
+;;    A[2*i] = i;
+;;    *B++ = A[10];
 
 define void @weakzerodst2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -83,27 +108,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 10
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 5
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 5
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 6; i++)
-;;    A[2*i] = ...
-;;    ... = A[10];
+;;  for (long unsigned i = 0; i < 6; i++) {
+;;    A[2*i] = i;
+;;    *B++ = A[10];
 
 define void @weakzerodst3(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [=>p|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -112,27 +143,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 10
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [=>p|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 6
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 6
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 7; i++)
-;;    A[2*i] = ...
-;;    ... = A[10];
+;;  for (long unsigned i = 0; i < 7; i++) {
+;;    A[2*i] = i;
+;;    *B++ = A[10];
 
 define void @weakzerodst4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - flow [*|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -141,27 +178,33 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 10
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [*|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 7
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 7
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 7; i++)
-;;    A[2*i] = ...
-;;    ... = A[-10];
+;;  for (long unsigned i = 0; i < 7; i++) {
+;;    A[2*i] = i;
+;;    *B++ = A[-10];
 
 define void @weakzerodst5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -170,43 +213,54 @@ for.body:                                         ; preds = %for.body, %entry
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 -10
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 7
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 7
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < n; i++)
-;;    A[3*i] = ...
-;;    ... = A[10];
+;;  for (long unsigned i = 0; i < n; i++) {
+;;    A[3*i] = i;
+;;    *B++ = A[10];
 
 define void @weakzerodst6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+; CHECK: da analyze - consistent output [0|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [S|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %mul = mul i64 %i.03, 3
   %arrayidx = getelementptr inbounds i32* %A, i64 %mul
   store i32 %conv, i32* %arrayidx, align 4
   %arrayidx1 = getelementptr inbounds i32* %A, i64 10
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
diff --git a/test/Analysis/DependenceAnalysis/WeakZeroSrcSIV.ll b/test/Analysis/DependenceAnalysis/WeakZeroSrcSIV.ll
index fd4f462..4fe491c 100644
--- a/test/Analysis/DependenceAnalysis/WeakZeroSrcSIV.ll
+++ b/test/Analysis/DependenceAnalysis/WeakZeroSrcSIV.ll
@@ -5,15 +5,22 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3
 target triple = "x86_64-apple-macosx10.6.0"
 
 
-;;  for (long unsigned i = 0; i < 30; i++)
-;;    A[10] = ...
-;;    ... = A[2*i + 10];
+;;  for (long unsigned i = 0; i < 30; i++) {
+;;    A[10] = i;
+;;    *B++ = A[2*i + 10];
 
 define void @weakzerosrc0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [S|<]!
+; CHECK: da analyze - flow [p<=|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -23,30 +30,39 @@ for.body:                                         ; preds = %for.body, %entry
   %add = add i64 %mul, 10
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [p<=|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 30
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 30
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < n; i++)
-;;    A[10] = ...
-;;    ... = A[n*i + 10];
+;;  for (long unsigned i = 0; i < n; i++) {
+;;    A[10] = i;
+;;    *B++ = A[n*i + 10];
 
 define void @weakzerosrc1(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
+
+; CHECK: da analyze - consistent output [S|<]!
+; CHECK: da analyze - flow [p<=|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %arrayidx = getelementptr inbounds i32* %A, i64 10
   store i32 %conv, i32* %arrayidx, align 4
@@ -54,27 +70,36 @@ for.body:                                         ; preds = %for.body, %entry
   %add = add i64 %mul, 10
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [p<=|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 5; i++)
-;;    A[10] = ...
-;;    ... = A[2*i];
+;;  for (long unsigned i = 0; i < 5; i++) {
+;;    A[10] = i;
+;;    *B++ = A[2*i];
 
 define void @weakzerosrc2(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [S|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -83,27 +108,33 @@ for.body:                                         ; preds = %for.body, %entry
   %mul = shl i64 %i.02, 1
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %mul
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 5
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 5
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 6; i++)
-;;    A[10] = ...
-;;    ... = A[2*i];
+;;  for (long unsigned i = 0; i < 6; i++) {
+;;    A[10] = i;
+;;    *B++ = A[2*i];
 
 define void @weakzerosrc3(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [S|<]!
+; CHECK: da analyze - flow [=>p|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -112,27 +143,33 @@ for.body:                                         ; preds = %for.body, %entry
   %mul = shl i64 %i.02, 1
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %mul
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [=>p|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 6
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 6
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 7; i++)
-;;    A[10] = ...
-;;    ... = A[2*i];
+;;  for (long unsigned i = 0; i < 7; i++) {
+;;    A[10] = i;
+;;    *B++ = A[2*i];
 
 define void @weakzerosrc4(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [S|<]!
+; CHECK: da analyze - flow [*|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -141,27 +178,33 @@ for.body:                                         ; preds = %for.body, %entry
   %mul = shl i64 %i.02, 1
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %mul
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow [*|<]!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 7
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 7
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < 7; i++)
-;;    A[-10] = ...
-;;    ... = A[2*i];
+;;  for (long unsigned i = 0; i < 7; i++) {
+;;    A[-10] = i;
+;;    *B++ = A[2*i];
 
 define void @weakzerosrc5(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   br label %for.body
 
-for.body:                                         ; preds = %for.body, %entry
+; CHECK: da analyze - consistent output [S|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body:                                         ; preds = %entry, %for.body
   %i.02 = phi i64 [ 0, %entry ], [ %inc, %for.body ]
   %B.addr.01 = phi i32* [ %B, %entry ], [ %incdec.ptr, %for.body ]
   %conv = trunc i64 %i.02 to i32
@@ -170,43 +213,54 @@ for.body:                                         ; preds = %for.body, %entry
   %mul = shl i64 %i.02, 1
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %mul
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.01, i64 1
   store i32 %0, i32* %B.addr.01, align 4
   %inc = add i64 %i.02, 1
-  %cmp = icmp ult i64 %inc, 7
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, 7
+  br i1 %exitcond, label %for.body, label %for.end
 
 for.end:                                          ; preds = %for.body
   ret void
 }
 
 
-;;  for (long unsigned i = 0; i < n; i++)
-;;    A[10] = ...
-;;    ... = A[3*i];
+;;  for (long unsigned i = 0; i < n; i++) {
+;;    A[10] = i;
+;;    *B++ = A[3*i];
 
 define void @weakzerosrc6(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %cmp1 = icmp eq i64 %n, 0
-  br i1 %cmp1, label %for.end, label %for.body
+  br i1 %cmp1, label %for.end, label %for.body.preheader
 
-for.body:                                         ; preds = %for.body, %entry
-  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
-  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %entry ]
+; CHECK: da analyze - consistent output [S|<]!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input [0|<]!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
+for.body.preheader:                               ; preds = %entry
+  br label %for.body
+
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %i.03 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
+  %B.addr.02 = phi i32* [ %incdec.ptr, %for.body ], [ %B, %for.body.preheader ]
   %conv = trunc i64 %i.03 to i32
   %arrayidx = getelementptr inbounds i32* %A, i64 10
   store i32 %conv, i32* %arrayidx, align 4
   %mul = mul i64 %i.03, 3
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %mul
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   %incdec.ptr = getelementptr inbounds i32* %B.addr.02, i64 1
   store i32 %0, i32* %B.addr.02, align 4
   %inc = add i64 %i.03, 1
-  %cmp = icmp ult i64 %inc, %n
-  br i1 %cmp, label %for.body, label %for.end
+  %exitcond = icmp ne i64 %inc, %n
+  br i1 %exitcond, label %for.body, label %for.end.loopexit
+
+for.end.loopexit:                                 ; preds = %for.body
+  br label %for.end
 
-for.end:                                          ; preds = %for.body, %entry
+for.end:                                          ; preds = %for.end.loopexit, %entry
   ret void
 }
diff --git a/test/Analysis/DependenceAnalysis/ZIV.ll b/test/Analysis/DependenceAnalysis/ZIV.ll
index 42b2389..7b004be 100644
--- a/test/Analysis/DependenceAnalysis/ZIV.ll
+++ b/test/Analysis/DependenceAnalysis/ZIV.ll
@@ -5,49 +5,70 @@ target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f3
 target triple = "x86_64-apple-macosx10.6.0"
 
 
-;;  A[n + 1] = ...
-;;  ... = A[1 + n];
+;;  A[n + 1] = 0;
+;;  *B = A[1 + n];
 
 define void @z0(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %add = add i64 %n, 1
   %arrayidx = getelementptr inbounds i32* %A, i64 %add
   store i32 0, i32* %arrayidx, align 4
+
+; CHECK: da analyze - consistent output!
+; CHECK: da analyze - consistent flow!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
   %add1 = add i64 %n, 1
   %arrayidx2 = getelementptr inbounds i32* %A, i64 %add1
   %0 = load i32* %arrayidx2, align 4
-; CHECK: da analyze - consistent flow!
   store i32 %0, i32* %B, align 4
   ret void
 }
 
 
-;;  A[n] = ...
-;;  ... = A[n + 1];
+;;  A[n] = 0;
+;;  *B = A[n + 1];
 
 define void @z1(i32* %A, i32* %B, i64 %n) nounwind uwtable ssp {
 entry:
   %arrayidx = getelementptr inbounds i32* %A, i64 %n
   store i32 0, i32* %arrayidx, align 4
+
+; CHECK: da analyze - consistent output!
+; CHECK: da analyze - none!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
   %add = add i64 %n, 1
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %add
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - none!
   store i32 %0, i32* %B, align 4
   ret void
 }
 
 
-;;  A[n] = ...
-;;  ... = A[m];
+;;  A[n] = 0;
+;;  *B = A[m];
 
 define void @z2(i32* %A, i32* %B, i64 %n, i64 %m) nounwind uwtable ssp {
 entry:
   %arrayidx = getelementptr inbounds i32* %A, i64 %n
   store i32 0, i32* %arrayidx, align 4
+
+; CHECK: da analyze - consistent output!
+; CHECK: da analyze - flow!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - consistent input!
+; CHECK: da analyze - confused!
+; CHECK: da analyze - confused!
+
   %arrayidx1 = getelementptr inbounds i32* %A, i64 %m
   %0 = load i32* %arrayidx1, align 4
-; CHECK: da analyze - flow!
   store i32 %0, i32* %B, align 4
   ret void
 }