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31 lines
1.3 KiB
LLVM
31 lines
1.3 KiB
LLVM
; RUN: llc < %s -march=x86-64 -mattr=+ssse3 | FileCheck %s
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; Test that the pshufb mask comment is correct.
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define <16 x i8> @test1(<16 x i8> %V) {
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; CHECK-LABEL: test1:
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; CHECK: pshufb {{.*}}# xmm0 = xmm0[1,0,0,0,0,2,0,0,0,0,3,0,0,0,0,4]
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%1 = tail call <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8> %V, <16 x i8> <i8 1, i8 0, i8 0, i8 0, i8 0, i8 2, i8 0, i8 0, i8 0, i8 0, i8 3, i8 0, i8 0, i8 0, i8 0, i8 4>)
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ret <16 x i8> %1
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}
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; Test that indexes larger than the size of the vector are shown masked (bottom 4 bits).
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define <16 x i8> @test2(<16 x i8> %V) {
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; CHECK-LABEL: test2:
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; CHECK: pshufb {{.*}}# xmm0 = xmm0[15,0,0,0,0,0,0,0,0,0,1,0,0,0,0,2]
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%1 = tail call <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8> %V, <16 x i8> <i8 15, i8 0, i8 0, i8 0, i8 0, i8 16, i8 0, i8 0, i8 0, i8 0, i8 17, i8 0, i8 0, i8 0, i8 0, i8 50>)
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ret <16 x i8> %1
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}
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; Test that indexes with bit seven set are shown as zero.
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define <16 x i8> @test3(<16 x i8> %V) {
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; CHECK-LABEL: test3:
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; CHECK: pshufb {{.*}}# xmm0 = xmm0[1,0,0,15,0,2,0,0],zero,xmm0[0,3,0,0],zero,xmm0[0,4]
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%1 = tail call <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8> %V, <16 x i8> <i8 1, i8 0, i8 0, i8 127, i8 0, i8 2, i8 0, i8 0, i8 128, i8 0, i8 3, i8 0, i8 0, i8 255, i8 0, i8 4>)
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ret <16 x i8> %1
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}
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declare <16 x i8> @llvm.x86.ssse3.pshuf.b.128(<16 x i8>, <16 x i8>) nounwind readnone
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