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[TargetLowering] Add SimplifyDemandedBits support for ZERO_EXTEND_VECTOR_INREG
More work for PR39709. llvm-svn: 360592
This commit is contained in:
@@ -1375,6 +1375,30 @@ bool TargetLowering::SimplifyDemandedBits(
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Known = Known.zext(BitWidth, true /* ExtendedBitsAreKnownZero */);
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break;
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}
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case ISD::ZERO_EXTEND_VECTOR_INREG: {
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// TODO - merge this with ZERO_EXTEND above?
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SDValue Src = Op.getOperand(0);
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EVT SrcVT = Src.getValueType();
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unsigned InBits = SrcVT.getScalarSizeInBits();
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unsigned InElts = SrcVT.getVectorNumElements();
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// If we only need the non-extended bits of the bottom element
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// then we can just bitcast to the result.
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if (DemandedBits.getActiveBits() <= InBits && DemandedElts == 1 &&
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VT.getSizeInBits() == SrcVT.getSizeInBits() &&
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TLO.DAG.getDataLayout().isLittleEndian())
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return TLO.CombineTo(Op, TLO.DAG.getBitcast(VT, Src));
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APInt InDemandedBits = DemandedBits.trunc(InBits);
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APInt InDemandedElts = DemandedElts.zextOrSelf(InElts);
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if (SimplifyDemandedBits(Src, InDemandedBits, InDemandedElts, Known, TLO,
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Depth + 1))
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return true;
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assert(!Known.hasConflict() && "Bits known to be one AND zero?");
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assert(Known.getBitWidth() == InBits && "Src width has changed?");
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Known = Known.zext(BitWidth, true /* ExtendedBitsAreKnownZero */);
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break;
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}
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case ISD::SIGN_EXTEND: {
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SDValue Src = Op.getOperand(0);
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unsigned InBits = Src.getScalarValueSizeInBits();
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@@ -1565,17 +1565,16 @@ define i8 @test_v2i8(<2 x i8> %a0) {
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;
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; SSE41-LABEL: test_v2i8:
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; SSE41: # %bb.0:
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; SSE41-NEXT: pmovzxbw {{.*#+}} xmm1 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; SSE41-NEXT: psrlw $8, %xmm0
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; SSE41-NEXT: pmullw %xmm1, %xmm0
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; SSE41-NEXT: pextrb $0, %xmm0, %eax
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; SSE41-NEXT: movdqa %xmm0, %xmm1
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; SSE41-NEXT: psrlw $8, %xmm1
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; SSE41-NEXT: pmullw %xmm0, %xmm1
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; SSE41-NEXT: pextrb $0, %xmm1, %eax
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; SSE41-NEXT: # kill: def $al killed $al killed $eax
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; SSE41-NEXT: retq
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;
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; AVX-LABEL: test_v2i8:
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; AVX: # %bb.0:
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; AVX-NEXT: vpsrlw $8, %xmm0, %xmm1
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; AVX-NEXT: vpmovzxbw {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; AVX-NEXT: vpmullw %xmm1, %xmm0, %xmm0
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; AVX-NEXT: vpextrb $0, %xmm0, %eax
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; AVX-NEXT: # kill: def $al killed $al killed $eax
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@@ -1584,7 +1583,6 @@ define i8 @test_v2i8(<2 x i8> %a0) {
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; AVX512-LABEL: test_v2i8:
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; AVX512: # %bb.0:
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; AVX512-NEXT: vpsrlw $8, %xmm0, %xmm1
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; AVX512-NEXT: vpmovzxbw {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; AVX512-NEXT: vpmullw %xmm1, %xmm0, %xmm0
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; AVX512-NEXT: vpextrb $0, %xmm0, %eax
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; AVX512-NEXT: # kill: def $al killed $al killed $eax
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@@ -1617,10 +1615,10 @@ define i8 @test_v4i8(<4 x i8> %a0) {
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; SSE41-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,1,2,3]
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; SSE41-NEXT: pmullw %xmm1, %xmm0
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; SSE41-NEXT: pshufb {{.*#+}} xmm0 = xmm0[0,2,4,6,u,u,u,u,u,u,u,u,u,u,u,u]
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; SSE41-NEXT: pmovzxbw {{.*#+}} xmm1 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; SSE41-NEXT: psrlw $8, %xmm0
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; SSE41-NEXT: pmullw %xmm1, %xmm0
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; SSE41-NEXT: pextrb $0, %xmm0, %eax
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; SSE41-NEXT: movdqa %xmm0, %xmm1
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; SSE41-NEXT: psrlw $8, %xmm1
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; SSE41-NEXT: pmullw %xmm0, %xmm1
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; SSE41-NEXT: pextrb $0, %xmm1, %eax
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; SSE41-NEXT: # kill: def $al killed $al killed $eax
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; SSE41-NEXT: retq
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;
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@@ -1632,7 +1630,6 @@ define i8 @test_v4i8(<4 x i8> %a0) {
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; AVX-NEXT: vpmullw %xmm0, %xmm1, %xmm0
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; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,2,4,6,u,u,u,u,u,u,u,u,u,u,u,u]
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; AVX-NEXT: vpsrlw $8, %xmm0, %xmm1
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; AVX-NEXT: vpmovzxbw {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; AVX-NEXT: vpmullw %xmm1, %xmm0, %xmm0
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; AVX-NEXT: vpextrb $0, %xmm0, %eax
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; AVX-NEXT: # kill: def $al killed $al killed $eax
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@@ -1646,7 +1643,6 @@ define i8 @test_v4i8(<4 x i8> %a0) {
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; AVX512-NEXT: vpmullw %xmm0, %xmm1, %xmm0
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; AVX512-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,2,4,6,u,u,u,u,u,u,u,u,u,u,u,u]
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; AVX512-NEXT: vpsrlw $8, %xmm0, %xmm1
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; AVX512-NEXT: vpmovzxbw {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; AVX512-NEXT: vpmullw %xmm1, %xmm0, %xmm0
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; AVX512-NEXT: vpextrb $0, %xmm0, %eax
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; AVX512-NEXT: # kill: def $al killed $al killed $eax
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@@ -1692,10 +1688,10 @@ define i8 @test_v8i8(<8 x i8> %a0) {
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; SSE41-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,1,2,3]
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; SSE41-NEXT: pmullw %xmm2, %xmm0
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; SSE41-NEXT: pshufb %xmm1, %xmm0
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; SSE41-NEXT: pmovzxbw {{.*#+}} xmm1 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; SSE41-NEXT: psrlw $8, %xmm0
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; SSE41-NEXT: pmullw %xmm1, %xmm0
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; SSE41-NEXT: pextrb $0, %xmm0, %eax
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; SSE41-NEXT: movdqa %xmm0, %xmm1
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; SSE41-NEXT: psrlw $8, %xmm1
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; SSE41-NEXT: pmullw %xmm0, %xmm1
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; SSE41-NEXT: pextrb $0, %xmm1, %eax
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; SSE41-NEXT: # kill: def $al killed $al killed $eax
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; SSE41-NEXT: retq
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;
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@@ -1713,7 +1709,6 @@ define i8 @test_v8i8(<8 x i8> %a0) {
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; AVX-NEXT: vpmullw %xmm0, %xmm2, %xmm0
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; AVX-NEXT: vpshufb %xmm1, %xmm0, %xmm0
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; AVX-NEXT: vpsrlw $8, %xmm0, %xmm1
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; AVX-NEXT: vpmovzxbw {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; AVX-NEXT: vpmullw %xmm1, %xmm0, %xmm0
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; AVX-NEXT: vpextrb $0, %xmm0, %eax
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; AVX-NEXT: # kill: def $al killed $al killed $eax
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@@ -1733,7 +1728,6 @@ define i8 @test_v8i8(<8 x i8> %a0) {
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; AVX512-NEXT: vpmullw %xmm0, %xmm2, %xmm0
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; AVX512-NEXT: vpshufb %xmm1, %xmm0, %xmm0
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; AVX512-NEXT: vpsrlw $8, %xmm0, %xmm1
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; AVX512-NEXT: vpmovzxbw {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; AVX512-NEXT: vpmullw %xmm1, %xmm0, %xmm0
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; AVX512-NEXT: vpextrb $0, %xmm0, %eax
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; AVX512-NEXT: # kill: def $al killed $al killed $eax
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@@ -1797,10 +1791,10 @@ define i8 @test_v16i8(<16 x i8> %a0) {
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; SSE41-NEXT: pmullw %xmm3, %xmm0
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; SSE41-NEXT: pand %xmm1, %xmm0
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; SSE41-NEXT: packuswb %xmm2, %xmm0
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; SSE41-NEXT: pmovzxbw {{.*#+}} xmm1 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; SSE41-NEXT: psrlw $8, %xmm0
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; SSE41-NEXT: pmullw %xmm1, %xmm0
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; SSE41-NEXT: pextrb $0, %xmm0, %eax
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; SSE41-NEXT: movdqa %xmm0, %xmm1
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; SSE41-NEXT: psrlw $8, %xmm1
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; SSE41-NEXT: pmullw %xmm0, %xmm1
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; SSE41-NEXT: pextrb $0, %xmm1, %eax
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; SSE41-NEXT: # kill: def $al killed $al killed $eax
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; SSE41-NEXT: retq
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;
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@@ -1826,7 +1820,6 @@ define i8 @test_v16i8(<16 x i8> %a0) {
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; AVX1-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX1-NEXT: vpackuswb %xmm2, %xmm0, %xmm0
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; AVX1-NEXT: vpsrlw $8, %xmm0, %xmm1
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; AVX1-NEXT: vpmovzxbw {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; AVX1-NEXT: vpmullw %xmm1, %xmm0, %xmm0
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; AVX1-NEXT: vpextrb $0, %xmm0, %eax
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; AVX1-NEXT: # kill: def $al killed $al killed $eax
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@@ -1852,7 +1845,6 @@ define i8 @test_v16i8(<16 x i8> %a0) {
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; AVX2-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX2-NEXT: vpackuswb %xmm0, %xmm0, %xmm1
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; AVX2-NEXT: vpsrlw $8, %xmm1, %xmm1
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; AVX2-NEXT: vpmovzxbw {{.*#+}} xmm1 = xmm1[0],zero,xmm1[1],zero,xmm1[2],zero,xmm1[3],zero,xmm1[4],zero,xmm1[5],zero,xmm1[6],zero,xmm1[7],zero
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; AVX2-NEXT: vpmullw %xmm1, %xmm0, %xmm0
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; AVX2-NEXT: vpextrb $0, %xmm0, %eax
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; AVX2-NEXT: # kill: def $al killed $al killed $eax
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@@ -2040,10 +2032,10 @@ define i8 @test_v32i8(<32 x i8> %a0) {
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; SSE41-NEXT: pmullw %xmm2, %xmm3
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; SSE41-NEXT: pand %xmm1, %xmm3
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; SSE41-NEXT: packuswb %xmm0, %xmm3
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; SSE41-NEXT: pmovzxbw {{.*#+}} xmm0 = xmm3[0],zero,xmm3[1],zero,xmm3[2],zero,xmm3[3],zero,xmm3[4],zero,xmm3[5],zero,xmm3[6],zero,xmm3[7],zero
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; SSE41-NEXT: psrlw $8, %xmm3
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; SSE41-NEXT: pmullw %xmm0, %xmm3
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; SSE41-NEXT: pextrb $0, %xmm3, %eax
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; SSE41-NEXT: movdqa %xmm3, %xmm0
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; SSE41-NEXT: psrlw $8, %xmm0
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; SSE41-NEXT: pmullw %xmm3, %xmm0
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; SSE41-NEXT: pextrb $0, %xmm0, %eax
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; SSE41-NEXT: # kill: def $al killed $al killed $eax
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; SSE41-NEXT: retq
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;
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@@ -2382,10 +2374,10 @@ define i8 @test_v64i8(<64 x i8> %a0) {
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; SSE41-NEXT: pmullw %xmm3, %xmm1
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; SSE41-NEXT: pand %xmm2, %xmm1
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; SSE41-NEXT: packuswb %xmm0, %xmm1
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; SSE41-NEXT: pmovzxbw {{.*#+}} xmm0 = xmm1[0],zero,xmm1[1],zero,xmm1[2],zero,xmm1[3],zero,xmm1[4],zero,xmm1[5],zero,xmm1[6],zero,xmm1[7],zero
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; SSE41-NEXT: psrlw $8, %xmm1
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; SSE41-NEXT: pmullw %xmm0, %xmm1
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; SSE41-NEXT: pextrb $0, %xmm1, %eax
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; SSE41-NEXT: movdqa %xmm1, %xmm0
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; SSE41-NEXT: psrlw $8, %xmm0
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; SSE41-NEXT: pmullw %xmm1, %xmm0
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; SSE41-NEXT: pextrb $0, %xmm0, %eax
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; SSE41-NEXT: # kill: def $al killed $al killed $eax
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; SSE41-NEXT: retq
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;
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@@ -2899,10 +2891,10 @@ define i8 @test_v128i8(<128 x i8> %a0) {
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; SSE41-NEXT: pmullw %xmm1, %xmm2
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; SSE41-NEXT: pand %xmm5, %xmm2
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; SSE41-NEXT: packuswb %xmm0, %xmm2
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; SSE41-NEXT: pmovzxbw {{.*#+}} xmm0 = xmm2[0],zero,xmm2[1],zero,xmm2[2],zero,xmm2[3],zero,xmm2[4],zero,xmm2[5],zero,xmm2[6],zero,xmm2[7],zero
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; SSE41-NEXT: psrlw $8, %xmm2
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; SSE41-NEXT: pmullw %xmm0, %xmm2
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; SSE41-NEXT: pextrb $0, %xmm2, %eax
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; SSE41-NEXT: movdqa %xmm2, %xmm0
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; SSE41-NEXT: psrlw $8, %xmm0
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; SSE41-NEXT: pmullw %xmm2, %xmm0
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; SSE41-NEXT: pextrb $0, %xmm0, %eax
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; SSE41-NEXT: # kill: def $al killed $al killed $eax
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; SSE41-NEXT: retq
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;
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@@ -1755,10 +1755,10 @@ define i8 @test_v16i8(<16 x i8> %a0) {
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; SSE41-NEXT: pmullw %xmm3, %xmm0
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; SSE41-NEXT: pand %xmm1, %xmm0
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; SSE41-NEXT: packuswb %xmm2, %xmm0
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; SSE41-NEXT: pmovzxbw {{.*#+}} xmm1 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; SSE41-NEXT: psrlw $8, %xmm0
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; SSE41-NEXT: pmullw %xmm1, %xmm0
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; SSE41-NEXT: pextrb $0, %xmm0, %eax
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; SSE41-NEXT: movdqa %xmm0, %xmm1
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; SSE41-NEXT: psrlw $8, %xmm1
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; SSE41-NEXT: pmullw %xmm0, %xmm1
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; SSE41-NEXT: pextrb $0, %xmm1, %eax
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; SSE41-NEXT: # kill: def $al killed $al killed $eax
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; SSE41-NEXT: retq
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;
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@@ -1784,7 +1784,6 @@ define i8 @test_v16i8(<16 x i8> %a0) {
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; AVX1-NEXT: vpand %xmm1, %xmm0, %xmm0
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; AVX1-NEXT: vpackuswb %xmm2, %xmm0, %xmm0
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; AVX1-NEXT: vpsrlw $8, %xmm0, %xmm1
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; AVX1-NEXT: vpmovzxbw {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
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; AVX1-NEXT: vpmullw %xmm1, %xmm0, %xmm0
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; AVX1-NEXT: vpextrb $0, %xmm0, %eax
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; AVX1-NEXT: # kill: def $al killed $al killed $eax
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@@ -1992,10 +1991,10 @@ define i8 @test_v32i8(<32 x i8> %a0) {
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; SSE41-NEXT: pmullw %xmm2, %xmm3
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; SSE41-NEXT: pand %xmm1, %xmm3
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; SSE41-NEXT: packuswb %xmm0, %xmm3
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; SSE41-NEXT: pmovzxbw {{.*#+}} xmm0 = xmm3[0],zero,xmm3[1],zero,xmm3[2],zero,xmm3[3],zero,xmm3[4],zero,xmm3[5],zero,xmm3[6],zero,xmm3[7],zero
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; SSE41-NEXT: psrlw $8, %xmm3
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; SSE41-NEXT: pmullw %xmm0, %xmm3
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; SSE41-NEXT: pextrb $0, %xmm3, %eax
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; SSE41-NEXT: movdqa %xmm3, %xmm0
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; SSE41-NEXT: psrlw $8, %xmm0
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; SSE41-NEXT: pmullw %xmm3, %xmm0
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; SSE41-NEXT: pextrb $0, %xmm0, %eax
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; SSE41-NEXT: # kill: def $al killed $al killed $eax
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; SSE41-NEXT: retq
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;
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@@ -2334,10 +2333,10 @@ define i8 @test_v64i8(<64 x i8> %a0) {
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; SSE41-NEXT: pmullw %xmm3, %xmm1
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; SSE41-NEXT: pand %xmm2, %xmm1
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; SSE41-NEXT: packuswb %xmm0, %xmm1
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; SSE41-NEXT: pmovzxbw {{.*#+}} xmm0 = xmm1[0],zero,xmm1[1],zero,xmm1[2],zero,xmm1[3],zero,xmm1[4],zero,xmm1[5],zero,xmm1[6],zero,xmm1[7],zero
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; SSE41-NEXT: psrlw $8, %xmm1
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; SSE41-NEXT: pmullw %xmm0, %xmm1
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; SSE41-NEXT: pextrb $0, %xmm1, %eax
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; SSE41-NEXT: movdqa %xmm1, %xmm0
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; SSE41-NEXT: psrlw $8, %xmm0
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; SSE41-NEXT: pmullw %xmm1, %xmm0
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; SSE41-NEXT: pextrb $0, %xmm0, %eax
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; SSE41-NEXT: # kill: def $al killed $al killed $eax
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; SSE41-NEXT: retq
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;
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@@ -2851,10 +2850,10 @@ define i8 @test_v128i8(<128 x i8> %a0) {
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; SSE41-NEXT: pmullw %xmm1, %xmm2
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; SSE41-NEXT: pand %xmm5, %xmm2
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; SSE41-NEXT: packuswb %xmm0, %xmm2
|
||||
; SSE41-NEXT: pmovzxbw {{.*#+}} xmm0 = xmm2[0],zero,xmm2[1],zero,xmm2[2],zero,xmm2[3],zero,xmm2[4],zero,xmm2[5],zero,xmm2[6],zero,xmm2[7],zero
|
||||
; SSE41-NEXT: psrlw $8, %xmm2
|
||||
; SSE41-NEXT: pmullw %xmm0, %xmm2
|
||||
; SSE41-NEXT: pextrb $0, %xmm2, %eax
|
||||
; SSE41-NEXT: movdqa %xmm2, %xmm0
|
||||
; SSE41-NEXT: psrlw $8, %xmm0
|
||||
; SSE41-NEXT: pmullw %xmm2, %xmm0
|
||||
; SSE41-NEXT: pextrb $0, %xmm0, %eax
|
||||
; SSE41-NEXT: # kill: def $al killed $al killed $eax
|
||||
; SSE41-NEXT: retq
|
||||
;
|
||||
|
||||
Reference in New Issue
Block a user