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1c40e188c5
which is not always true if the mask contains undefs. Modified it to return the first non undef value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96621 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
561 B
LLVM
16 lines
561 B
LLVM
; RUN: llc < %s -march=x86-64 -mattr=sse41 | FileCheck %s
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define <8 x i16> @shuf6(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone {
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; CHECK: pshufb
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; CHECK-NOT: pshufb
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; CHECK: ret
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entry:
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%tmp9 = shufflevector <8 x i16> %T0, <8 x i16> %T1, <8 x i32> < i32 3, i32 2, i32 0, i32 2, i32 1, i32 5, i32 6 , i32 undef >
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ret <8 x i16> %tmp9
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}
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define <8 x i16> @shuf7(<8 x i16> %t0) {
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; CHECK: pshufd
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%tmp10 = shufflevector <8 x i16> %t0, <8 x i16> undef, <8 x i32> < i32 undef, i32 2, i32 2, i32 2, i32 2, i32 2, i32 undef, i32 undef >
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ret <8 x i16> %tmp10
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} |