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[X86] combineConcatVectorOps - combine X86ISD::PACKSS ops

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This commit is contained in:
Simon Pilgrim 2020-02-10 17:47:46 +00:00
parent 023899ffbe
commit 5bc48cd1de
3 changed files with 11 additions and 17 deletions
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4
lib/Target/X86/X86ISelLowering.cpp
View File

@ -45998,8 +45998,10 @@ static SDValue combineConcatVectorOps(const SDLoc &DL, MVT VT,
Op0.getOperand(1));
}
break;
case X86ISD::PACKSS:
case X86ISD::PACKUS:
if (NumOps == 2 && VT.is256BitVector() && Subtarget.hasInt256()) {
if (!IsSplat && NumOps == 2 && VT.is256BitVector() &&
Subtarget.hasInt256()) {
SmallVector<SDValue, 2> LHS, RHS;
for (unsigned i = 0; i != NumOps; ++i) {
LHS.push_back(Ops[i].getOperand(0));

12
test/CodeGen/X86/bitcast-and-setcc-512.ll
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@ -282,19 +282,15 @@ define i32 @v32i16(<32 x i16> %a, <32 x i16> %b, <32 x i16> %c, <32 x i16> %d) {
; AVX2-LABEL: v32i16:
; AVX2: # %bb.0:
; AVX2-NEXT: vpcmpgtw %ymm3, %ymm1, %ymm1
; AVX2-NEXT: vextracti128 $1, %ymm1, %xmm3
; AVX2-NEXT: vpacksswb %xmm3, %xmm1, %xmm1
; AVX2-NEXT: vpcmpgtw %ymm2, %ymm0, %ymm0
; AVX2-NEXT: vextracti128 $1, %ymm0, %xmm2
; AVX2-NEXT: vpacksswb %xmm2, %xmm0, %xmm0
; AVX2-NEXT: vperm2i128 {{.*#+}} ymm2 = ymm0[2,3],ymm1[2,3]
; AVX2-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
; AVX2-NEXT: vpacksswb %ymm2, %ymm0, %ymm0
; AVX2-NEXT: vpcmpgtw %ymm7, %ymm5, %ymm1
; AVX2-NEXT: vextracti128 $1, %ymm1, %xmm2
; AVX2-NEXT: vpacksswb %xmm2, %xmm1, %xmm1
; AVX2-NEXT: vpcmpgtw %ymm6, %ymm4, %ymm2
; AVX2-NEXT: vextracti128 $1, %ymm2, %xmm3
; AVX2-NEXT: vpacksswb %xmm3, %xmm2, %xmm2
; AVX2-NEXT: vperm2i128 {{.*#+}} ymm3 = ymm2[2,3],ymm1[2,3]
; AVX2-NEXT: vinserti128 $1, %xmm1, %ymm2, %ymm1
; AVX2-NEXT: vpacksswb %ymm3, %ymm1, %ymm1
; AVX2-NEXT: vpand %ymm1, %ymm0, %ymm0
; AVX2-NEXT: vpmovmskb %ymm0, %eax
; AVX2-NEXT: vzeroupper

12
test/CodeGen/X86/vector-compare-results.ll
View File

@ -1452,20 +1452,16 @@ define <64 x i1> @test_cmp_v64i16(<64 x i16> %a0, <64 x i16> %a1) nounwind {
; AVX2: # %bb.0:
; AVX2-NEXT: movq %rdi, %rax
; AVX2-NEXT: vpcmpgtw %ymm5, %ymm1, %ymm1
; AVX2-NEXT: vextracti128 $1, %ymm1, %xmm5
; AVX2-NEXT: vpacksswb %xmm5, %xmm1, %xmm1
; AVX2-NEXT: vpcmpgtw %ymm4, %ymm0, %ymm0
; AVX2-NEXT: vextracti128 $1, %ymm0, %xmm4
; AVX2-NEXT: vpacksswb %xmm4, %xmm0, %xmm0
; AVX2-NEXT: vperm2i128 {{.*#+}} ymm4 = ymm0[2,3],ymm1[2,3]
; AVX2-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
; AVX2-NEXT: vpacksswb %ymm4, %ymm0, %ymm0
; AVX2-NEXT: vpmovmskb %ymm0, %ecx
; AVX2-NEXT: vpcmpgtw %ymm7, %ymm3, %ymm0
; AVX2-NEXT: vextracti128 $1, %ymm0, %xmm1
; AVX2-NEXT: vpacksswb %xmm1, %xmm0, %xmm0
; AVX2-NEXT: vpcmpgtw %ymm6, %ymm2, %ymm1
; AVX2-NEXT: vextracti128 $1, %ymm1, %xmm2
; AVX2-NEXT: vpacksswb %xmm2, %xmm1, %xmm1
; AVX2-NEXT: vperm2i128 {{.*#+}} ymm2 = ymm1[2,3],ymm0[2,3]
; AVX2-NEXT: vinserti128 $1, %xmm0, %ymm1, %ymm0
; AVX2-NEXT: vpacksswb %ymm2, %ymm0, %ymm0
; AVX2-NEXT: vpmovmskb %ymm0, %edx
; AVX2-NEXT: shlq $32, %rdx
; AVX2-NEXT: orq %rcx, %rdx