Bunch of tests to check loop passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40629 91177308-0d34-0410-b5e6-96231b3b80d8

9 files changed, 204 insertions, 0 deletions

diff --git a/test/Transforms/LoopRotate/LRAnalysis.ll b/test/Analysis/Dominators/2007-07-11-SplitBlock.ll
index 3dc6eda..3dc6eda 100644
--- a/test/Transforms/LoopRotate/LRAnalysis.ll
+++ b/test/Analysis/Dominators/2007-07-11-SplitBlock.ll
diff --git a/test/Analysis/Dominators/2007-07-12-SplitBlock.ll b/test/Analysis/Dominators/2007-07-12-SplitBlock.ll
new file mode 100644
index 0000000..1748daf
--- /dev/null
+++ b/test/Analysis/Dominators/2007-07-12-SplitBlock.ll
@@ -0,0 +1,13 @@
+; RUN: llvm-as < %s |  opt -loop-rotate -licm -loop-unswitch -disable-output
+
+define i32 @main(i32 %argc, i8** %argv) {
+entry:
+	br label %bb7
+
+bb7:		; preds = %bb7, %entry
+	%tmp54 = icmp slt i32 0, 2000000		; <i1> [#uses=1]
+	br i1 %tmp54, label %bb7, label %bb56
+
+bb56:		; preds = %bb7
+	ret i32 0
+}
diff --git a/test/Transforms/LCSSA/2007-07-12-LICM-2.ll b/test/Transforms/LCSSA/2007-07-12-LICM-2.ll
new file mode 100644
index 0000000..58bb19d
--- /dev/null
+++ b/test/Transforms/LCSSA/2007-07-12-LICM-2.ll
@@ -0,0 +1,17 @@
+; RUN: llvm-as < %s | opt -loop-rotate -licm -loop-unswitch -disable-output
+define i32 @main(i32 %argc, i8** %argv) {
+entry:
+	br label %bb7
+
+bb7:		; preds = %bb7, %entry
+	%tmp39 = load <4 x float>* null		; <<4 x float>> [#uses=1]
+	%tmp40 = add <4 x float> %tmp39, < float 2.000000e+00, float 3.000000e+00, float 1.000000e+00, float 0.000000e+00 >		; <<4 x float>> [#uses=1]
+	%tmp43 = add <4 x float> %tmp40, < float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 2.000000e+00 >		; <<4 x float>> [#uses=1]
+	%tmp46 = add <4 x float> %tmp43, < float 3.000000e+00, float 0.000000e+00, float 2.000000e+00, float 4.000000e+00 >		; <<4 x float>> [#uses=1]
+	%tmp49 = add <4 x float> %tmp46, < float 0.000000e+00, float 4.000000e+00, float 6.000000e+00, float 1.000000e+00 >		; <<4 x float>> [#uses=1]
+	store <4 x float> %tmp49, <4 x float>* null
+	br i1 false, label %bb7, label %bb56
+
+bb56:		; preds = %bb7
+	ret i32 0
+}
diff --git a/test/Transforms/LCSSA/2007-07-12-LICM-3.ll b/test/Transforms/LCSSA/2007-07-12-LICM-3.ll
new file mode 100644
index 0000000..79370ee
--- /dev/null
+++ b/test/Transforms/LCSSA/2007-07-12-LICM-3.ll
@@ -0,0 +1,24 @@
+; RUN: llvm-as < %s | opt -loop-rotate -licm -loop-unswitch -disable-output
+
+define i32 @main(i32 %argc, i8** %argv) {
+entry:
+        br label %bb
+
+bb:             ; preds = %bb56, %entry
+        br label %bb7
+
+bb7:            ; preds = %bb7, %bb
+        %tmp39 = load <4 x float>* null         ; <<4 x float>> [#uses=1]
+        %tmp40 = add <4 x float> %tmp39, < float 2.000000e+00, float 3.000000e+00, float 1.000000e+00, float 0.000000e+00 >             ; <<4 x float>> [#uses=1]
+        %tmp43 = add <4 x float> %tmp40, < float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 2.000000e+00 >             ; <<4 x float>> [#uses=1]
+        %tmp46 = add <4 x float> %tmp43, < float 3.000000e+00, float 0.000000e+00, float 2.000000e+00, float 4.000000e+00 >             ; <<4 x float>> [#uses=1]
+        %tmp49 = add <4 x float> %tmp46, < float 0.000000e+00, float 4.000000e+00, float 6.000000e+00, float 1.000000e+00 >             ; <<4 x float>> [#uses=1]
+        store <4 x float> %tmp49, <4 x float>* null
+        br i1 false, label %bb7, label %bb56
+
+bb56:           ; preds = %bb7
+        br i1 false, label %bb, label %bb64
+
+bb64:           ; preds = %bb56
+        ret i32 0
+}
diff --git a/test/Transforms/LCSSA/2007-07-12-LICM.ll b/test/Transforms/LCSSA/2007-07-12-LICM.ll
new file mode 100644
index 0000000..1c9830e
--- /dev/null
+++ b/test/Transforms/LCSSA/2007-07-12-LICM.ll
@@ -0,0 +1,14 @@
+; RUN: llvm-as < %s | opt -loop-rotate -licm -loop-unswitch -disable-output
+define i32 @main(i32 %argc, i8** %argv) {
+entry:
+	br label %bb7
+
+bb7:		; preds = %bb7, %entry
+	%tmp39 = load <4 x float>* null		; <<4 x float>> [#uses=1]
+	%tmp40 = add <4 x float> %tmp39, < float 2.000000e+00, float 3.000000e+00, float 1.000000e+00, float 0.000000e+00 >		; <<4 x float>> [#uses=0]
+	store <4 x float> zeroinitializer, <4 x float>* null
+	br i1 false, label %bb7, label %bb56
+
+bb56:		; preds = %bb7
+	ret i32 0
+}
diff --git a/test/Transforms/LICM/2007-07-30-AliasSet.ll b/test/Transforms/LICM/2007-07-30-AliasSet.ll
new file mode 100644
index 0000000..110d884
--- /dev/null
+++ b/test/Transforms/LICM/2007-07-30-AliasSet.ll
@@ -0,0 +1,39 @@
+; RUN: llvm-as < %s | opt -licm -loop-unswitch -disable-output
+	%struct.III_scalefac_t = type { [22 x i32], [13 x [3 x i32]] }
+	%struct.gr_info = type { i32, i32, i32, i32, i32, i32, i32, i32, [3 x i32], [3 x i32], i32, i32, i32, i32, i32, i32, i32, i32, i32, i32*, [4 x i32] }
+
+define i32 @scale_bitcount_lsf(%struct.III_scalefac_t* %scalefac, %struct.gr_info* %cod_info) {
+entry:
+	br i1 false, label %bb28, label %bb133.preheader
+
+bb133.preheader:		; preds = %entry
+	ret i32 0
+
+bb28:		; preds = %entry
+	br i1 false, label %bb63.outer, label %bb79
+
+bb63.outer:		; preds = %bb73, %bb28
+	br i1 false, label %bb35, label %bb73
+
+bb35:		; preds = %cond_next60, %bb63.outer
+	%window.34 = phi i32 [ %tmp62, %cond_next60 ], [ 0, %bb63.outer ]		; <i32> [#uses=1]
+	%tmp44 = getelementptr [4 x i32]* null, i32 0, i32 0		; <i32*> [#uses=1]
+	%tmp46 = load i32* %tmp44, align 4		; <i32> [#uses=0]
+	br i1 false, label %cond_true50, label %cond_next60
+
+cond_true50:		; preds = %bb35
+	%tmp59 = getelementptr [4 x i32]* null, i32 0, i32 0		; <i32*> [#uses=1]
+	store i32 0, i32* %tmp59, align 4
+	br label %cond_next60
+
+cond_next60:		; preds = %cond_true50, %bb35
+	%tmp62 = add i32 %window.34, 1		; <i32> [#uses=1]
+	br i1 false, label %bb35, label %bb73
+
+bb73:		; preds = %cond_next60, %bb63.outer
+	%tmp76 = icmp slt i32 0, 0		; <i1> [#uses=1]
+	br i1 %tmp76, label %bb63.outer, label %bb79
+
+bb79:		; preds = %bb73, %bb28
+	ret i32 0
+}
diff --git a/test/Transforms/LICM/Preserve-LCSSA.ll b/test/Transforms/LICM/Preserve-LCSSA.ll
new file mode 100644
index 0000000..850d071
--- /dev/null
+++ b/test/Transforms/LICM/Preserve-LCSSA.ll
@@ -0,0 +1,25 @@
+; RUN: llvm-as < %s | opt -loop-rotate -licm -loop-unswitch -disable-output
+
+define i32 @stringSearch_Clib(i32 %count) {
+entry:
+	br i1 false, label %bb36, label %bb44
+
+bb4:		; preds = %bb36
+	br i1 false, label %cond_next, label %cond_true
+
+cond_true:		; preds = %bb4
+	ret i32 0
+
+cond_next:		; preds = %bb4
+	ret i32 0
+
+bb36:		; preds = %bb41, %entry
+	br i1 false, label %bb4, label %bb41
+
+bb41:		; preds = %bb36
+	%ttmp2 = icmp slt i32 0, %count		; <i1> [#uses=1]
+	br i1 %ttmp2, label %bb36, label %bb44
+
+bb44:		; preds = %bb41, %entry
+	ret i32 0
+}
diff --git a/test/Transforms/LoopUnswitch/2007-07-12-ExitDomInfo.ll b/test/Transforms/LoopUnswitch/2007-07-12-ExitDomInfo.ll
new file mode 100644
index 0000000..c4080c1
--- /dev/null
+++ b/test/Transforms/LoopUnswitch/2007-07-12-ExitDomInfo.ll
@@ -0,0 +1,45 @@
+; RUN: llvm-as < %s | opt -loop-unswitch -instcombine -disable-output
+
+@str3 = external constant [3 x i8]		; <[3 x i8]*> [#uses=1]
+
+define i32 @stringSearch_Clib(i32 %count) {
+entry:
+	%ttmp25 = icmp sgt i32 %count, 0		; <i1> [#uses=1]
+	br i1 %ttmp25, label %bb36.preheader, label %bb44
+
+bb36.preheader:		; preds = %entry
+	%ttmp33 = icmp slt i32 0, 250		; <i1> [#uses=1]
+	br label %bb36.outer
+
+bb36.outer:		; preds = %bb41, %bb36.preheader
+	br i1 %ttmp33, label %bb.nph, label %bb41
+
+bb.nph:		; preds = %bb36.outer
+	%ttmp8 = icmp eq i8* null, null		; <i1> [#uses=1]
+	%ttmp6 = icmp eq i8* null, null		; <i1> [#uses=1]
+	%tmp31 = call i32 @strcspn( i8* null, i8* getelementptr ([3 x i8]* @str3, i64 0, i64 0) )		; <i32> [#uses=1]
+	br i1 %ttmp8, label %cond_next, label %cond_true
+
+cond_true:		; preds = %bb.nph
+	ret i32 0
+
+cond_next:		; preds = %bb.nph
+	br i1 %ttmp6, label %cond_next28, label %cond_true20
+
+cond_true20:		; preds = %cond_next
+	ret i32 0
+
+cond_next28:		; preds = %cond_next
+	%tmp33 = add i32 %tmp31, 0		; <i32> [#uses=1]
+	br label %bb41
+
+bb41:		; preds = %cond_next28, %bb36.outer
+	%c.2.lcssa = phi i32 [ 0, %bb36.outer ], [ %tmp33, %cond_next28 ]		; <i32> [#uses=1]
+	br i1 false, label %bb36.outer, label %bb44
+
+bb44:		; preds = %bb41, %entry
+	%c.01.1 = phi i32 [ 0, %entry ], [ %c.2.lcssa, %bb41 ]		; <i32> [#uses=1]
+	ret i32 %c.01.1
+}
+
+declare i32 @strcspn(i8*, i8*)
diff --git a/test/Transforms/LoopUnswitch/2007-07-13-DomInfo.ll b/test/Transforms/LoopUnswitch/2007-07-13-DomInfo.ll
new file mode 100644
index 0000000..de3f670
--- /dev/null
+++ b/test/Transforms/LoopUnswitch/2007-07-13-DomInfo.ll
@@ -0,0 +1,27 @@
+; RUN: llvm-as < %s | opt -loop-unswitch -disable-output
+
+define i32 @main(i32 %argc, i8** %argv) {
+entry:
+	%tmp1785365 = icmp ult i32 0, 100		; <i1> [#uses=1]
+	br label %bb
+
+bb:		; preds = %cond_true, %entry
+	br i1 false, label %cond_true, label %cond_next
+
+cond_true:		; preds = %bb
+	br i1 %tmp1785365, label %bb, label %bb1788
+
+cond_next:		; preds = %bb
+	%iftmp.1.0 = select i1 false, i32 0, i32 0		; <i32> [#uses=1]
+	br i1 false, label %cond_true47, label %cond_next74
+
+cond_true47:		; preds = %cond_next
+	%tmp53 = urem i32 %iftmp.1.0, 0		; <i32> [#uses=0]
+	ret i32 0
+
+cond_next74:		; preds = %cond_next
+	ret i32 0
+
+bb1788:		; preds = %cond_true
+	ret i32 0
+}