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[X86][AVX512] Fix sext v32i1 -> v32i8 lowering. 

Fix PR30600.

Differential Revision: https://reviews.llvm.org/D25554

llvm-svn: 284134
This commit is contained in:
Igor Breger 2016-10-13 17:20:38 +00:00
parent 2d556f2d06
commit 8409c356ad
2 changed files with 77 additions and 1 deletions
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2
llvm/lib/Target/X86/X86ISelLowering.cpp
View File

@ -16340,7 +16340,7 @@ static SDValue LowerSIGN_EXTEND_AVX512(SDValue Op,
}
assert (InVT.getVectorElementType() == MVT::i1 && "Unexpected vector type");
MVT ExtVT = NumElts == 8 ? MVT::v8i64 : MVT::v16i32;
MVT ExtVT = MVT::getVectorVT(MVT::getIntegerVT(512/NumElts), NumElts);
SDValue NegOne = DAG.getConstant(
APInt::getAllOnesValue(ExtVT.getScalarSizeInBits()), dl, ExtVT);
SDValue Zero = DAG.getConstant(

76
llvm/test/CodeGen/X86/vector-sext.ll
View File

@ -4939,3 +4939,79 @@ define <4 x i64> @sext_4i8_to_4i64(<4 x i8> %mask) {
%extmask = sext <4 x i8> %mask to <4 x i64>
ret <4 x i64> %extmask
}
define <32 x i8> @sext_32xi1_to_32xi8(<32 x i16> %c1, <32 x i16> %c2)nounwind {
; SSE-LABEL: sext_32xi1_to_32xi8:
; SSE: # BB#0:
; SSE-NEXT: pcmpeqw %xmm5, %xmm1
; SSE-NEXT: pcmpeqw %xmm4, %xmm0
; SSE-NEXT: packsswb %xmm1, %xmm0
; SSE-NEXT: pcmpeqw %xmm7, %xmm3
; SSE-NEXT: pcmpeqw %xmm6, %xmm2
; SSE-NEXT: packsswb %xmm3, %xmm2
; SSE-NEXT: movdqa %xmm2, %xmm1
; SSE-NEXT: retq
;
; AVX1-LABEL: sext_32xi1_to_32xi8:
; AVX1: # BB#0:
; AVX1-NEXT: vextractf128 $1, %ymm3, %xmm4
; AVX1-NEXT: vextractf128 $1, %ymm1, %xmm5
; AVX1-NEXT: vpcmpeqw %xmm4, %xmm5, %xmm4
; AVX1-NEXT: vpcmpeqw %xmm3, %xmm1, %xmm1
; AVX1-NEXT: vpacksswb %xmm4, %xmm1, %xmm1
; AVX1-NEXT: vextractf128 $1, %ymm2, %xmm3
; AVX1-NEXT: vextractf128 $1, %ymm0, %xmm4
; AVX1-NEXT: vpcmpeqw %xmm3, %xmm4, %xmm3
; AVX1-NEXT: vpcmpeqw %xmm2, %xmm0, %xmm0
; AVX1-NEXT: vpacksswb %xmm3, %xmm0, %xmm0
; AVX1-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: sext_32xi1_to_32xi8:
; AVX2: # BB#0:
; AVX2-NEXT: vpcmpeqw %ymm3, %ymm1, %ymm1
; AVX2-NEXT: vpcmpeqw %ymm2, %ymm0, %ymm0
; AVX2-NEXT: vpacksswb %ymm1, %ymm0, %ymm0
; AVX2-NEXT: vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
; AVX2-NEXT: retq
;
; AVX512F-LABEL: sext_32xi1_to_32xi8:
; AVX512F: # BB#0:
; AVX512F-NEXT: vpcmpeqw %ymm2, %ymm0, %ymm0
; AVX512F-NEXT: vpmovsxwd %ymm0, %zmm0
; AVX512F-NEXT: vpmovdb %zmm0, %xmm0
; AVX512F-NEXT: vpcmpeqw %ymm3, %ymm1, %ymm1
; AVX512F-NEXT: vpmovsxwd %ymm1, %zmm1
; AVX512F-NEXT: vpmovdb %zmm1, %xmm1
; AVX512F-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
; AVX512F-NEXT: retq
;
; AVX512BW-LABEL: sext_32xi1_to_32xi8:
; AVX512BW: # BB#0:
; AVX512BW-NEXT: vpcmpeqw %zmm1, %zmm0, %k1
; AVX512BW-NEXT: vpternlogd $255, %zmm0, %zmm0, %zmm0
; AVX512BW-NEXT: vmovdqu16 %zmm0, %zmm0 {%k1} {z}
; AVX512BW-NEXT: vpmovwb %zmm0, %ymm0
; AVX512BW-NEXT: retq
;
; X32-SSE41-LABEL: sext_32xi1_to_32xi8:
; X32-SSE41: # BB#0:
; X32-SSE41-NEXT: pushl %ebp
; X32-SSE41-NEXT: movl %esp, %ebp
; X32-SSE41-NEXT: andl $-16, %esp
; X32-SSE41-NEXT: subl $16, %esp
; X32-SSE41-NEXT: movdqa 8(%ebp), %xmm3
; X32-SSE41-NEXT: pcmpeqw 40(%ebp), %xmm1
; X32-SSE41-NEXT: pcmpeqw 24(%ebp), %xmm0
; X32-SSE41-NEXT: packsswb %xmm1, %xmm0
; X32-SSE41-NEXT: pcmpeqw 72(%ebp), %xmm3
; X32-SSE41-NEXT: pcmpeqw 56(%ebp), %xmm2
; X32-SSE41-NEXT: packsswb %xmm3, %xmm2
; X32-SSE41-NEXT: movdqa %xmm2, %xmm1
; X32-SSE41-NEXT: movl %ebp, %esp
; X32-SSE41-NEXT: popl %ebp
; X32-SSE41-NEXT: retl
%a = icmp eq <32 x i16> %c1, %c2
%b = sext <32 x i1> %a to <32 x i8>
ret <32 x i8> %b
}