new testcase, should not reassoc fp vector

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31199 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/2006-10-26-VectorReassoc.ll b/test/Transforms/InstCombine/2006-10-26-VectorReassoc.ll
new file mode 100644 (file)
index 0000000..cf68f63
--- /dev/null
+++ b/test/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
+}