am 31195f0b: Merge "Update aosp/master llvm for rebase to r233350"

* commit '31195f0bdca6ee2a5e72d07edf13e1d81206d949':
  Update aosp/master llvm for rebase to r233350

1 files changed, 64 insertions, 2 deletions

diff --git a/test/Analysis/ScalarEvolution/trip-count.ll b/test/Analysis/ScalarEvolution/trip-count.ll
index f89125a..1b75c88 100644
--- a/test/Analysis/ScalarEvolution/trip-count.ll
+++ b/test/Analysis/ScalarEvolution/trip-count.ll
@@ -1,16 +1,20 @@
 ; RUN: opt < %s -analyze -scalar-evolution -scalar-evolution-max-iterations=0 | FileCheck %s
 ; PR1101
 
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
 @A = weak global [1000 x i32] zeroinitializer, align 32         
 
+; CHECK: Printing analysis 'Scalar Evolution Analysis' for function 'test1':
 ; CHECK: backedge-taken count is 10000
 
-define void @test(i32 %N) {
+define void @test1(i32 %N) {
 entry:
         br label %bb3
 
 bb:             ; preds = %bb3
-        %tmp = getelementptr [1000 x i32]* @A, i32 0, i32 %i.0          ; <i32*> [#uses=1]
+        %tmp = getelementptr [1000 x i32], [1000 x i32]* @A, i32 0, i32 %i.0          ; <i32*> [#uses=1]
         store i32 123, i32* %tmp
         %tmp2 = add i32 %i.0, 1         ; <i32> [#uses=1]
         br label %bb3
@@ -26,3 +30,61 @@ bb5:            ; preds = %bb3
 return:         ; preds = %bb5
         ret void
 }
+
+; PR22795
+; CHECK: Printing analysis 'Scalar Evolution Analysis' for function 'test2':
+; CHECK:   %iv = phi i32 [ -1, %entry ], [ %next.1, %for.inc.1 ]
+; CHECK-NEXT:  -->  {-1,+,2}<%preheader> U: full-set S: full-set             Exits: 13
+
+define i32 @test2() {
+entry:
+  %bins = alloca [16 x i64], align 16
+  %0 = bitcast [16 x i64]* %bins to i8*
+  call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 128, i32 16, i1 false)
+  br label %preheader
+
+preheader:                                        ; preds = %for.inc.1, %entry
+  %v11 = phi i64 [ 0, %entry ], [ %next12.1, %for.inc.1 ]
+  %iv = phi i32 [ -1, %entry ], [ %next.1, %for.inc.1 ]
+  %cmp = icmp sgt i64 %v11, 0
+  br i1 %cmp, label %for.body, label %for.inc
+
+for.body:                                         ; preds = %preheader
+  %zext = zext i32 %iv to i64
+  %arrayidx = getelementptr [16 x i64], [16 x i64]* %bins, i64 0, i64 %v11
+  %loaded = load i64, i64* %arrayidx, align 8
+  %add = add i64 %loaded, 1
+  %add2 = add i64 %add, %zext
+  store i64 %add2, i64* %arrayidx, align 8
+  br label %for.inc
+
+for.inc:                                          ; preds = %for.body, %preheader
+  %next12 = add nuw nsw i64 %v11, 1
+  %next = add nsw i32 %iv, 1
+  br i1 true, label %for.body.1, label %for.inc.1
+
+end:                                              ; preds = %for.inc.1
+  %arrayidx8 = getelementptr [16 x i64], [16 x i64]* %bins, i64 0, i64 2
+  %load = load i64, i64* %arrayidx8, align 16
+  %shr4 = lshr i64 %load, 32
+  %conv = trunc i64 %shr4 to i32
+  ret i32 %conv
+
+for.body.1:                                       ; preds = %for.inc
+  %zext.1 = zext i32 %next to i64
+  %arrayidx.1 = getelementptr [16 x i64], [16 x i64]* %bins, i64 0, i64 %next12
+  %loaded.1 = load i64, i64* %arrayidx.1, align 8
+  %add.1 = add i64 %loaded.1, 1
+  %add2.1 = add i64 %add.1, %zext.1
+  store i64 %add2.1, i64* %arrayidx.1, align 8
+  br label %for.inc.1
+
+for.inc.1:                                        ; preds = %for.body.1, %for.inc
+  %next12.1 = add nuw nsw i64 %next12, 1
+  %next.1 = add nuw nsw i32 %next, 1
+  %exitcond.1 = icmp eq i64 %next12.1, 16
+  br i1 %exitcond.1, label %end, label %preheader
+}
+
+; Function Attrs: nounwind
+declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #0