new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36024 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/vec_extract_elt.ll b/test/Transforms/InstCombine/vec_extract_elt.ll
new file mode 100644 (file)
index 0000000..30b2f1d
--- /dev/null
+++ b/test/Transforms/InstCombine/vec_extract_elt.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep extractelement
+
+define i32 @test(float %f) {
+        %tmp7 = insertelement <4 x float> undef, float %f, i32 0                ; <<4 x float>> [#uses=1]
+        %tmp17 = bitcast <4 x float> %tmp7 to <4 x i32>         ; <<4 x i32>> [#uses=1]
+        %tmp19 = extractelement <4 x i32> %tmp17, i32 0         ; <i32> [#uses=1]
+        ret i32 %tmp19
+}
+