Testcase for PR2537.

llvm-svn: 69866
2009-04-23 04:26:42 +00:00 · 2009-04-23 04:26:42 +00:00 · b211b5c478
parent 437c6357e0
commit b211b5c478
1 changed files with 21 additions and 0 deletions
--- a/llvm/test/Transforms/LoopStrengthReduce/pr2537.ll
+++ b/llvm/test/Transforms/LoopStrengthReduce/pr2537.ll
@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | opt -loop-reduce -disable-output
+; PR 2537
+
+define void @a() {
+entry:
+        br label %dobody
+
+dobody:         ; preds = %dobody, %entry
+        %y.0 = phi i128 [ 0, %entry ], [ %add, %dobody ]
+        %x.0 = phi i128 [ 0, %entry ], [ %add2, %dobody ]
+        %add = add i128 %y.0, shl (i128 1, i128 64)
+        %add2 = add i128 %x.0, shl (i128 1, i128 48)
+        call void @b( i128 %add )
+        %cmp = icmp ult i128 %add2, shl (i128 1, i128 64)
+        br i1 %cmp, label %dobody, label %afterdo
+
+afterdo:                ; preds = %dobody
+        ret void
+}
+
+declare void @b(i128 %add)