Fixes a bug in the DAGCombiner. LoadSDNodes have two values (data, chain).
If there is a store after the load node, then there is a chain, which means
that there is another user. Thus, asking hasOneUser would fail. Instead we
ask hasNUsesOfValue on the 'data' value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131183 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/2011-05-09-loaduse.ll b/test/CodeGen/X86/2011-05-09-loaduse.ll
new file mode 100644
index 0000000..8673d74
--- /dev/null
+++ b/test/CodeGen/X86/2011-05-09-loaduse.ll
@@ -0,0 +1,13 @@
+; RUN: llc < %s -march=x86 -mcpu=corei7 | FileCheck %s
+
+;CHECK: test
+;CHECK-not: pshufd
+;CHECK: ret
+define float @test(<4 x float>* %A) nounwind {
+entry:
+ %T = load <4 x float>* %A
+ %R = extractelement <4 x float> %T, i32 3
+ store <4 x float><float 0.0, float 0.0, float 0.0, float 0.0>, <4 x float>* %A
+ ret float %R
+}
+