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ef8d6999f3
inserts and extracts. This simple combine makes us generate only 1 instruction instead of 11 in the v8 case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137362 91177308-0d34-0410-b5e6-96231b3b80d8
19 lines
629 B
LLVM
19 lines
629 B
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s
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; CHECK-NOT: vunpck
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; CHECK: vextractf128 $1
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define <8 x float> @A(<8 x float> %a) nounwind uwtable readnone ssp {
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entry:
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%shuffle = shufflevector <8 x float> %a, <8 x float> undef, <8 x i32> <i32 4, i32 5, i32 6, i32 7, i32 8, i32 8, i32 8, i32 8>
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ret <8 x float> %shuffle
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}
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; CHECK-NOT: vunpck
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; CHECK: vextractf128 $1
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define <4 x double> @B(<4 x double> %a) nounwind uwtable readnone ssp {
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entry:
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%shuffle = shufflevector <4 x double> %a, <4 x double> undef, <4 x i32> <i32 2, i32 3, i32 4, i32 4>
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ret <4 x double> %shuffle
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}
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