new testcase, should not reassoc fp vector

llvm-svn: 31199

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/test/Regression/Transforms/InstCombine/2006-10-26-VectorReassoc.ll b/llvm/test/Regression/Transforms/InstCombine/2006-10-26-VectorReassoc.ll
new file mode 100644
index 00000000000..cf68f63e686
--- /dev/null
+++ b/llvm/test/Regression/Transforms/InstCombine/2006-10-26-VectorReassoc.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep mul | wc -l | grep 2
+
+
+<4 x float> %test(<4 x float> %V) {
+	%Y = mul <4 x float> %V, <float 1.0, float 2.0, float 3.0, float 4.0>
+	%Z = mul <4 x float> %Y, <float 1.0, float 200000.0, float -3.0, float 4.0>
+	ret <4 x float> %Z
+}