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9b14371830
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189145 91177308-0d34-0410-b5e6-96231b3b80d8
17 lines
548 B
LLVM
17 lines
548 B
LLVM
; RUN: llc -march=x86-64 -mattr=-sse4.2,+sse4.1 < %s | FileCheck %s
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; Make sure we don't load from the location pointed to by %p
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; twice: it has non-obvious performance implications, and
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; the relevant transformation doesn't know how to update
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; the chains correctly.
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; PR10747
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; CHECK-LABEL: test:
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; CHECK: pextrd $2, %xmm
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define <4 x i32> @test(<4 x i32>* %p) {
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%v = load <4 x i32>* %p
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%e = extractelement <4 x i32> %v, i32 2
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%cmp = icmp eq i32 %e, 3
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%sel = select i1 %cmp, <4 x i32> %v, <4 x i32> zeroinitializer
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ret <4 x i32> %sel
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}
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