new testcase that causes instcombine to infinitely loop

llvm-svn: 33342

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/test/Transforms/InstCombine/2007-01-18-VectorInfLoop.ll b/llvm/test/Transforms/InstCombine/2007-01-18-VectorInfLoop.ll
new file mode 100644
index 00000000000..0aa20228299
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/2007-01-18-VectorInfLoop.ll
@@ -0,0 +1,7 @@
+; RUN: llvm-as < %s | opt -instcombine -disable-output
+
+define <4 x i32> %test(<4 x i32> %A) {
+    %B = xor <4 x i32> %A, < i32 -1, i32 -1, i32 -1, i32 -1 > 
+    %C = and <4 x i32> %B, < i32 -1, i32 -1, i32 -1, i32 -1 >
+    ret <4 x i32> %C
+}