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19 lines
793 B
LLVM
19 lines
793 B
LLVM
; RUN: llc < %s -march=x86 -mattr=+sse2 | FileCheck %s
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define i32 @t() nounwind optsize {
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entry:
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; CHECK: punpckldq
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%a = alloca <4 x i32> ; <<4 x i32>*> [#uses=2]
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%b = alloca <4 x i32> ; <<4 x i32>*> [#uses=5]
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store volatile <4 x i32> < i32 0, i32 1, i32 2, i32 3 >, <4 x i32>* %a
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%tmp = load <4 x i32>* %a ; <<4 x i32>> [#uses=1]
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store <4 x i32> %tmp, <4 x i32>* %b
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%tmp1 = load <4 x i32>* %b ; <<4 x i32>> [#uses=1]
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%tmp2 = load <4 x i32>* %b ; <<4 x i32>> [#uses=1]
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%punpckldq = shufflevector <4 x i32> %tmp1, <4 x i32> %tmp2, <4 x i32> < i32 0, i32 4, i32 1, i32 5 > ; <<4 x i32>> [#uses=1]
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store <4 x i32> %punpckldq, <4 x i32>* %b
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%tmp3 = load <4 x i32>* %b ; <<4 x i32>> [#uses=1]
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%result = extractelement <4 x i32> %tmp3, i32 0 ; <i32> [#uses=1]
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ret i32 %result
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}
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