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[x86] Significantly improve the ability of the new vector shuffle

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lowering to match VZEXT_MOVL patterns.

I hadn't realized that these had sufficient pattern smarts in the
backend to lower zext-ing from the low element of a vector without it
being a scalar_to_vector node. They do, and this is how to match a bunch
of patterns for movq, movss, etc.

There is a weird propensity to end up using pshufd to place the element
afterward even though it means domain crossing (or rather, to use
xorps+movss to zext the element rather than movq) but that's an
orthogonal problem with VZEXT_MOVL that someone should probably look at.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218977 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth 2014-10-03 11:25:58 +00:00
parent ca77e58993
commit 01b3858e66
5 changed files with 100 additions and 248 deletions
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56
lib/Target/X86/X86ISelLowering.cpp
View File

@ -7801,28 +7801,32 @@ static SDValue lowerVectorShuffleAsElementInsertion(
return SDValue(); // Not inserting into a zero vector.
}
MVT ExtVT = VT;
MVT EltVT = VT.getVectorElementType();
// Check for a single input from a SCALAR_TO_VECTOR node.
// FIXME: All of this should be canonicalized into INSERT_VECTOR_ELT and
// all the smarts here sunk into that routine. However, the current
// lowering of BUILD_VECTOR makes that nearly impossible until the old
// vector shuffle lowering is dead.
SDValue V2S =
getScalarValueForVectorElement(V2, Mask[V2Index] - Mask.size(), DAG);
if (!V2S)
if (SDValue V2S = getScalarValueForVectorElement(
V2, Mask[V2Index] - Mask.size(), DAG)) {
// We need to zext the scalar if it is smaller than an i32.
V2S = DAG.getNode(ISD::BITCAST, DL, EltVT, V2S);
if (EltVT == MVT::i8 || EltVT == MVT::i16) {
// Zero-extend directly to i32.
ExtVT = MVT::v4i32;
V2S = DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::i32, V2S);
}
V2 = DAG.getNode(ISD::SCALAR_TO_VECTOR, DL, ExtVT, V2S);
} else if (Mask[V2Index] != (int)Mask.size() || EltVT == MVT::i8 ||
EltVT == MVT::i16) {
// Either not inserting from the low element of the input or the input
// element size is too small to use VZEXT_MOVL to clear the high bits.
return SDValue();
// First, we need to zext the scalar if it is smaller than an i32.
MVT ExtVT = VT;
MVT EltVT = VT.getVectorElementType();
V2S = DAG.getNode(ISD::BITCAST, DL, EltVT, V2S);
if (EltVT == MVT::i8 || EltVT == MVT::i16) {
// Zero-extend directly to i32.
ExtVT = MVT::v4i32;
V2S = DAG.getNode(ISD::ZERO_EXTEND, DL, MVT::i32, V2S);
}
V2 = DAG.getNode(X86ISD::VZEXT_MOVL, DL, ExtVT,
DAG.getNode(ISD::SCALAR_TO_VECTOR, DL, ExtVT, V2S));
V2 = DAG.getNode(X86ISD::VZEXT_MOVL, DL, ExtVT, V2);
if (ExtVT != VT)
V2 = DAG.getNode(ISD::BITCAST, DL, VT, V2);
@ -7998,12 +8002,6 @@ static SDValue lowerV2I64VectorShuffle(SDValue Op, SDValue V1, SDValue V2,
getV4X86ShuffleImm8ForMask(WidenedMask, DAG)));
}
// Use dedicated unpack instructions for masks that match their pattern.
if (isShuffleEquivalent(Mask, 0, 2))
return DAG.getNode(X86ISD::UNPCKL, DL, MVT::v2i64, V1, V2);
if (isShuffleEquivalent(Mask, 1, 3))
return DAG.getNode(X86ISD::UNPCKH, DL, MVT::v2i64, V1, V2);
// If we have a single input from V2 insert that into V1 if we can do so
// cheaply.
if ((Mask[0] >= 2) + (Mask[1] >= 2) == 1)
@ -8011,6 +8009,12 @@ static SDValue lowerV2I64VectorShuffle(SDValue Op, SDValue V1, SDValue V2,
MVT::v2i64, DL, V1, V2, Mask, Subtarget, DAG))
return Insertion;
// Use dedicated unpack instructions for masks that match their pattern.
if (isShuffleEquivalent(Mask, 0, 2))
return DAG.getNode(X86ISD::UNPCKL, DL, MVT::v2i64, V1, V2);
if (isShuffleEquivalent(Mask, 1, 3))
return DAG.getNode(X86ISD::UNPCKH, DL, MVT::v2i64, V1, V2);
if (Subtarget->hasSSE41())
if (SDValue Blend = lowerVectorShuffleAsBlend(DL, MVT::v2i64, V1, V2, Mask,
Subtarget, DAG))
@ -8275,18 +8279,18 @@ static SDValue lowerV4I32VectorShuffle(SDValue Op, SDValue V1, SDValue V2,
getV4X86ShuffleImm8ForMask(Mask, DAG));
}
// Use dedicated unpack instructions for masks that match their pattern.
if (isShuffleEquivalent(Mask, 0, 4, 1, 5))
return DAG.getNode(X86ISD::UNPCKL, DL, MVT::v4i32, V1, V2);
if (isShuffleEquivalent(Mask, 2, 6, 3, 7))
return DAG.getNode(X86ISD::UNPCKH, DL, MVT::v4i32, V1, V2);
// There are special ways we can lower some single-element blends.
if (NumV2Elements == 1)
if (SDValue V = lowerVectorShuffleAsElementInsertion(MVT::v4i32, DL, V1, V2,
Mask, Subtarget, DAG))
return V;
// Use dedicated unpack instructions for masks that match their pattern.
if (isShuffleEquivalent(Mask, 0, 4, 1, 5))
return DAG.getNode(X86ISD::UNPCKL, DL, MVT::v4i32, V1, V2);
if (isShuffleEquivalent(Mask, 2, 6, 3, 7))
return DAG.getNode(X86ISD::UNPCKH, DL, MVT::v4i32, V1, V2);
if (Subtarget->hasSSE41())
if (SDValue Blend = lowerVectorShuffleAsBlend(DL, MVT::v4i32, V1, V2, Mask,
Subtarget, DAG))

81
test/CodeGen/X86/vector-shuffle-128-v2.ll
View File

@ -652,41 +652,15 @@ define <2 x i64> @shuffle_v2i64_31_copy(<2 x i64> %nonce, <2 x i64> %a, <2 x i64
}
define <2 x i64> @shuffle_v2i64_0z(<2 x i64> %a) {
; SSE2-LABEL: shuffle_v2i64_0z:
; SSE2: # BB#0:
; SSE2-NEXT: xorpd %xmm1, %xmm1
; SSE2-NEXT: shufpd {{.*#+}} xmm0 = xmm0[0],xmm1[1]
; SSE2-NEXT: retq
; SSE-LABEL: shuffle_v2i64_0z:
; SSE: # BB#0:
; SSE-NEXT: movq %xmm0, %xmm0
; SSE-NEXT: retq
;
; SSE3-LABEL: shuffle_v2i64_0z:
; SSE3: # BB#0:
; SSE3-NEXT: xorpd %xmm1, %xmm1
; SSE3-NEXT: shufpd {{.*#+}} xmm0 = xmm0[0],xmm1[1]
; SSE3-NEXT: retq
;
; SSSE3-LABEL: shuffle_v2i64_0z:
; SSSE3: # BB#0:
; SSSE3-NEXT: xorpd %xmm1, %xmm1
; SSSE3-NEXT: shufpd {{.*#+}} xmm0 = xmm0[0],xmm1[1]
; SSSE3-NEXT: retq
;
; SSE41-LABEL: shuffle_v2i64_0z:
; SSE41: # BB#0:
; SSE41-NEXT: pxor %xmm1, %xmm1
; SSE41-NEXT: pblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
; SSE41-NEXT: retq
;
; AVX1-LABEL: shuffle_v2i64_0z:
; AVX1: # BB#0:
; AVX1-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX1-NEXT: vpblendw {{.*#+}} xmm0 = xmm0[0,1,2,3],xmm1[4,5,6,7]
; AVX1-NEXT: retq
;
; AVX2-LABEL: shuffle_v2i64_0z:
; AVX2: # BB#0:
; AVX2-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX2-NEXT: vpblendd {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3]
; AVX2-NEXT: retq
; AVX-LABEL: shuffle_v2i64_0z:
; AVX: # BB#0:
; AVX-NEXT: vmovq %xmm0, %xmm0
; AVX-NEXT: retq
%shuffle = shufflevector <2 x i64> %a, <2 x i64> zeroinitializer, <2 x i32> <i32 0, i32 3>
ret <2 x i64> %shuffle
}
@ -710,15 +684,14 @@ define <2 x i64> @shuffle_v2i64_1z(<2 x i64> %a) {
define <2 x i64> @shuffle_v2i64_z0(<2 x i64> %a) {
; SSE-LABEL: shuffle_v2i64_z0:
; SSE: # BB#0:
; SSE-NEXT: pxor %xmm1, %xmm1
; SSE-NEXT: punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm0[0]
; SSE-NEXT: movdqa %xmm1, %xmm0
; SSE-NEXT: movq %xmm0, %xmm0
; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm0[2,3,0,1]
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v2i64_z0:
; AVX: # BB#0:
; AVX-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm1[0],xmm0[0]
; AVX-NEXT: vmovq %xmm0, %xmm0
; AVX-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[2,3,0,1]
; AVX-NEXT: retq
%shuffle = shufflevector <2 x i64> %a, <2 x i64> zeroinitializer, <2 x i32> <i32 2, i32 0>
ret <2 x i64> %shuffle
@ -769,34 +742,14 @@ define <2 x i64> @shuffle_v2i64_z1(<2 x i64> %a) {
}
define <2 x double> @shuffle_v2f64_0z(<2 x double> %a) {
; SSE2-LABEL: shuffle_v2f64_0z:
; SSE2: # BB#0:
; SSE2-NEXT: xorpd %xmm1, %xmm1
; SSE2-NEXT: shufpd {{.*#+}} xmm0 = xmm0[0],xmm1[1]
; SSE2-NEXT: retq
;
; SSE3-LABEL: shuffle_v2f64_0z:
; SSE3: # BB#0:
; SSE3-NEXT: xorpd %xmm1, %xmm1
; SSE3-NEXT: shufpd {{.*#+}} xmm0 = xmm0[0],xmm1[1]
; SSE3-NEXT: retq
;
; SSSE3-LABEL: shuffle_v2f64_0z:
; SSSE3: # BB#0:
; SSSE3-NEXT: xorpd %xmm1, %xmm1
; SSSE3-NEXT: shufpd {{.*#+}} xmm0 = xmm0[0],xmm1[1]
; SSSE3-NEXT: retq
;
; SSE41-LABEL: shuffle_v2f64_0z:
; SSE41: # BB#0:
; SSE41-NEXT: xorpd %xmm1, %xmm1
; SSE41-NEXT: blendpd {{.*#+}} xmm0 = xmm0[0],xmm1[1]
; SSE41-NEXT: retq
; SSE-LABEL: shuffle_v2f64_0z:
; SSE: # BB#0:
; SSE-NEXT: movq %xmm0, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v2f64_0z:
; AVX: # BB#0:
; AVX-NEXT: vxorpd %xmm1, %xmm1, %xmm1
; AVX-NEXT: vblendpd {{.*#+}} xmm0 = xmm0[0],xmm1[1]
; AVX-NEXT: vmovq %xmm0, %xmm0
; AVX-NEXT: retq
%shuffle = shufflevector <2 x double> %a, <2 x double> zeroinitializer, <2 x i32> <i32 0, i32 3>
ret <2 x double> %shuffle

192
test/CodeGen/X86/vector-shuffle-128-v4.ll
View File

@ -438,38 +438,17 @@ define <4 x i32> @shuffle_v4i32_4015(<4 x i32> %a, <4 x i32> %b) {
}
define <4 x float> @shuffle_v4f32_4zzz(<4 x float> %a) {
; SSE2-LABEL: shuffle_v4f32_4zzz:
; SSE2: # BB#0:
; SSE2-NEXT: xorps %xmm1, %xmm1
; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[1,0]
; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[2,3]
; SSE2-NEXT: retq
;
; SSE3-LABEL: shuffle_v4f32_4zzz:
; SSE3: # BB#0:
; SSE3-NEXT: xorps %xmm1, %xmm1
; SSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[1,0]
; SSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[2,3]
; SSE3-NEXT: retq
;
; SSSE3-LABEL: shuffle_v4f32_4zzz:
; SSSE3: # BB#0:
; SSSE3-NEXT: xorps %xmm1, %xmm1
; SSSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[1,0]
; SSSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[2,3]
; SSSE3-NEXT: retq
;
; SSE41-LABEL: shuffle_v4f32_4zzz:
; SSE41: # BB#0:
; SSE41-NEXT: xorps %xmm1, %xmm1
; SSE41-NEXT: blendps {{.*#+}} xmm1 = xmm0[0],xmm1[1,2,3]
; SSE41-NEXT: movaps %xmm1, %xmm0
; SSE41-NEXT: retq
; SSE-LABEL: shuffle_v4f32_4zzz:
; SSE: # BB#0:
; SSE-NEXT: xorps %xmm1, %xmm1
; SSE-NEXT: movss %xmm0, %xmm1
; SSE-NEXT: movaps %xmm1, %xmm0
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v4f32_4zzz:
; AVX: # BB#0:
; AVX-NEXT: vxorps %xmm1, %xmm1, %xmm1
; AVX-NEXT: vblendps {{.*#+}} xmm0 = xmm0[0],xmm1[1,2,3]
; AVX-NEXT: vmovss %xmm0, %xmm1, %xmm0
; AVX-NEXT: retq
%shuffle = shufflevector <4 x float> zeroinitializer, <4 x float> %a, <4 x i32> <i32 4, i32 1, i32 2, i32 3>
ret <4 x float> %shuffle
@ -660,152 +639,71 @@ define <4 x float> @shuffle_v4f32_z6zz(<4 x float> %a) {
}
define <4 x i32> @shuffle_v4i32_4zzz(<4 x i32> %a) {
; SSE2-LABEL: shuffle_v4i32_4zzz:
; SSE2: # BB#0:
; SSE2-NEXT: xorps %xmm1, %xmm1
; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[1,0]
; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[2,3]
; SSE2-NEXT: retq
; SSE-LABEL: shuffle_v4i32_4zzz:
; SSE: # BB#0:
; SSE-NEXT: xorps %xmm1, %xmm1
; SSE-NEXT: movss %xmm0, %xmm1
; SSE-NEXT: movaps %xmm1, %xmm0
; SSE-NEXT: retq
;
; SSE3-LABEL: shuffle_v4i32_4zzz:
; SSE3: # BB#0:
; SSE3-NEXT: xorps %xmm1, %xmm1
; SSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[1,0]
; SSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[2,3]
; SSE3-NEXT: retq
;
; SSSE3-LABEL: shuffle_v4i32_4zzz:
; SSSE3: # BB#0:
; SSSE3-NEXT: xorps %xmm1, %xmm1
; SSSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[1,0]
; SSSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[2,3]
; SSSE3-NEXT: retq
;
; SSE41-LABEL: shuffle_v4i32_4zzz:
; SSE41: # BB#0:
; SSE41-NEXT: pxor %xmm1, %xmm1
; SSE41-NEXT: pblendw {{.*#+}} xmm1 = xmm0[0,1],xmm1[2,3,4,5,6,7]
; SSE41-NEXT: movdqa %xmm1, %xmm0
; SSE41-NEXT: retq
;
; AVX1-LABEL: shuffle_v4i32_4zzz:
; AVX1: # BB#0:
; AVX1-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX1-NEXT: vpblendw {{.*#+}} xmm0 = xmm0[0,1],xmm1[2,3,4,5,6,7]
; AVX1-NEXT: retq
;
; AVX2-LABEL: shuffle_v4i32_4zzz:
; AVX2: # BB#0:
; AVX2-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX2-NEXT: vpblendd {{.*#+}} xmm0 = xmm0[0],xmm1[1,2,3]
; AVX2-NEXT: retq
; AVX-LABEL: shuffle_v4i32_4zzz:
; AVX: # BB#0:
; AVX-NEXT: vxorps %xmm1, %xmm1, %xmm1
; AVX-NEXT: vmovss %xmm0, %xmm1, %xmm0
; AVX-NEXT: retq
%shuffle = shufflevector <4 x i32> zeroinitializer, <4 x i32> %a, <4 x i32> <i32 4, i32 1, i32 2, i32 3>
ret <4 x i32> %shuffle
}
define <4 x i32> @shuffle_v4i32_z4zz(<4 x i32> %a) {
; SSE2-LABEL: shuffle_v4i32_z4zz:
; SSE2: # BB#0:
; SSE2-NEXT: xorps %xmm1, %xmm1
; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[2,0]
; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[2,0],xmm1[3,0]
; SSE2-NEXT: retq
;
; SSE3-LABEL: shuffle_v4i32_z4zz:
; SSE3: # BB#0:
; SSE3-NEXT: xorps %xmm1, %xmm1
; SSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[2,0]
; SSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[2,0],xmm1[3,0]
; SSE3-NEXT: retq
;
; SSSE3-LABEL: shuffle_v4i32_z4zz:
; SSSE3: # BB#0:
; SSSE3-NEXT: xorps %xmm1, %xmm1
; SSSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[2,0]
; SSSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[2,0],xmm1[3,0]
; SSSE3-NEXT: retq
;
; SSE41-LABEL: shuffle_v4i32_z4zz:
; SSE41: # BB#0:
; SSE41-NEXT: insertps {{.*#+}} xmm0 = zero,xmm0[0],zero,zero
; SSE41-NEXT: retq
; SSE-LABEL: shuffle_v4i32_z4zz:
; SSE: # BB#0:
; SSE-NEXT: xorps %xmm1, %xmm1
; SSE-NEXT: movss %xmm0, %xmm1
; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm1[1,0,1,1]
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v4i32_z4zz:
; AVX: # BB#0:
; AVX-NEXT: vinsertps {{.*#+}} xmm0 = zero,xmm0[0],zero,zero
; AVX-NEXT: vxorps %xmm1, %xmm1, %xmm1
; AVX-NEXT: vmovss %xmm0, %xmm1, %xmm0
; AVX-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[1,0,1,1]
; AVX-NEXT: retq
%shuffle = shufflevector <4 x i32> zeroinitializer, <4 x i32> %a, <4 x i32> <i32 2, i32 4, i32 3, i32 0>
ret <4 x i32> %shuffle
}
define <4 x i32> @shuffle_v4i32_zz4z(<4 x i32> %a) {
; SSE2-LABEL: shuffle_v4i32_zz4z:
; SSE2: # BB#0:
; SSE2-NEXT: xorps %xmm1, %xmm1
; SSE2-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[0,0]
; SSE2-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,0],xmm0[0,2]
; SSE2-NEXT: movaps %xmm1, %xmm0
; SSE2-NEXT: retq
;
; SSE3-LABEL: shuffle_v4i32_zz4z:
; SSE3: # BB#0:
; SSE3-NEXT: xorps %xmm1, %xmm1
; SSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[0,0]
; SSE3-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,0],xmm0[0,2]
; SSE3-NEXT: movaps %xmm1, %xmm0
; SSE3-NEXT: retq
;
; SSSE3-LABEL: shuffle_v4i32_zz4z:
; SSSE3: # BB#0:
; SSSE3-NEXT: xorps %xmm1, %xmm1
; SSSE3-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[0,0]
; SSSE3-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,0],xmm0[0,2]
; SSSE3-NEXT: movaps %xmm1, %xmm0
; SSSE3-NEXT: retq
;
; SSE41-LABEL: shuffle_v4i32_zz4z:
; SSE41: # BB#0:
; SSE41-NEXT: insertps {{.*#+}} xmm0 = zero,zero,xmm0[0],zero
; SSE41-NEXT: retq
; SSE-LABEL: shuffle_v4i32_zz4z:
; SSE: # BB#0:
; SSE-NEXT: xorps %xmm1, %xmm1
; SSE-NEXT: movss %xmm0, %xmm1
; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm1[1,1,0,1]
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v4i32_zz4z:
; AVX: # BB#0:
; AVX-NEXT: vinsertps {{.*#+}} xmm0 = zero,zero,xmm0[0],zero
; AVX-NEXT: vxorps %xmm1, %xmm1, %xmm1
; AVX-NEXT: vmovss %xmm0, %xmm1, %xmm0
; AVX-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[1,1,0,1]
; AVX-NEXT: retq
%shuffle = shufflevector <4 x i32> zeroinitializer, <4 x i32> %a, <4 x i32> <i32 0, i32 0, i32 4, i32 0>
ret <4 x i32> %shuffle
}
define <4 x i32> @shuffle_v4i32_zuu4(<4 x i32> %a) {
; SSE2-LABEL: shuffle_v4i32_zuu4:
; SSE2: # BB#0:
; SSE2-NEXT: xorps %xmm1, %xmm1
; SSE2-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,1],xmm0[2,0]
; SSE2-NEXT: movaps %xmm1, %xmm0
; SSE2-NEXT: retq
;
; SSE3-LABEL: shuffle_v4i32_zuu4:
; SSE3: # BB#0:
; SSE3-NEXT: xorps %xmm1, %xmm1
; SSE3-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,1],xmm0[2,0]
; SSE3-NEXT: movaps %xmm1, %xmm0
; SSE3-NEXT: retq
;
; SSSE3-LABEL: shuffle_v4i32_zuu4:
; SSSE3: # BB#0:
; SSSE3-NEXT: xorps %xmm1, %xmm1
; SSSE3-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,1],xmm0[2,0]
; SSSE3-NEXT: movaps %xmm1, %xmm0
; SSSE3-NEXT: retq
;
; SSE41-LABEL: shuffle_v4i32_zuu4:
; SSE41: # BB#0:
; SSE41-NEXT: insertps {{.*#+}} xmm0 = zero,zero,zero,xmm0[0]
; SSE41-NEXT: retq
; SSE-LABEL: shuffle_v4i32_zuu4:
; SSE: # BB#0:
; SSE-NEXT: xorps %xmm1, %xmm1
; SSE-NEXT: movss %xmm0, %xmm1
; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm1[1,1,1,0]
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v4i32_zuu4:
; AVX: # BB#0:
; AVX-NEXT: vinsertps {{.*#+}} xmm0 = zero,zero,zero,xmm0[0]
; AVX-NEXT: vxorps %xmm1, %xmm1, %xmm1
; AVX-NEXT: vmovss %xmm0, %xmm1, %xmm0
; AVX-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[1,1,1,0]
; AVX-NEXT: retq
%shuffle = shufflevector <4 x i32> zeroinitializer, <4 x i32> %a, <4 x i32> <i32 0, i32 undef, i32 undef, i32 4>
ret <4 x i32> %shuffle

15
test/CodeGen/X86/vector-shuffle-256-v4.ll
View File

@ -678,8 +678,8 @@ define <4 x i64> @insert_reg_and_zero_v4i64(i64 %a) {
; AVX1-LABEL: insert_reg_and_zero_v4i64:
; AVX1: # BB#0:
; AVX1-NEXT: vmovq %rdi, %xmm0
; AVX1-NEXT: vxorpd %ymm1, %ymm1, %ymm1
; AVX1-NEXT: vblendpd {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3]
; AVX1-NEXT: vxorps %xmm1, %xmm1, %xmm1
; AVX1-NEXT: vmovsd %xmm0, %xmm1, %xmm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: insert_reg_and_zero_v4i64:
@ -697,8 +697,8 @@ define <4 x i64> @insert_mem_and_zero_v4i64(i64* %ptr) {
; AVX1-LABEL: insert_mem_and_zero_v4i64:
; AVX1: # BB#0:
; AVX1-NEXT: vmovq (%rdi), %xmm0
; AVX1-NEXT: vxorpd %ymm1, %ymm1, %ymm1
; AVX1-NEXT: vblendpd {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3]
; AVX1-NEXT: vxorps %xmm1, %xmm1, %xmm1
; AVX1-NEXT: vmovsd %xmm0, %xmm1, %xmm0
; AVX1-NEXT: retq
;
; AVX2-LABEL: insert_mem_and_zero_v4i64:
@ -716,9 +716,8 @@ define <4 x i64> @insert_mem_and_zero_v4i64(i64* %ptr) {
define <4 x double> @insert_reg_and_zero_v4f64(double %a) {
; ALL-LABEL: insert_reg_and_zero_v4f64:
; ALL: # BB#0:
; ALL-NEXT: # kill: XMM0<def> XMM0<kill> YMM0<def>
; ALL-NEXT: vxorpd %ymm1, %ymm1, %ymm1
; ALL-NEXT: vblendpd {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3]
; ALL-NEXT: vxorps %xmm1, %xmm1, %xmm1
; ALL-NEXT: vmovsd %xmm0, %xmm1, %xmm0
; ALL-NEXT: retq
%v = insertelement <4 x double> undef, double %a, i32 0
%shuffle = shufflevector <4 x double> %v, <4 x double> zeroinitializer, <4 x i32> <i32 0, i32 5, i32 6, i32 7>
@ -729,8 +728,6 @@ define <4 x double> @insert_mem_and_zero_v4f64(double* %ptr) {
; ALL-LABEL: insert_mem_and_zero_v4f64:
; ALL: # BB#0:
; ALL-NEXT: vmovsd (%rdi), %xmm0
; ALL-NEXT: vxorpd %ymm1, %ymm1, %ymm1
; ALL-NEXT: vblendpd {{.*#+}} ymm0 = ymm0[0],ymm1[1,2,3]
; ALL-NEXT: retq
%a = load double* %ptr
%v = insertelement <4 x double> undef, double %a, i32 0

4
test/CodeGen/X86/vector-shuffle-sse1.ll
View File

@ -95,8 +95,8 @@ define <4 x float> @shuffle_v4f32_4zzz(<4 x float> %a) {
; SSE1-LABEL: shuffle_v4f32_4zzz:
; SSE1: # BB#0:
; SSE1-NEXT: xorps %xmm1, %xmm1
; SSE1-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[1,0]
; SSE1-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[2,3]
; SSE1-NEXT: movss %xmm0, %xmm1
; SSE1-NEXT: movaps %xmm1, %xmm0
; SSE1-NEXT: retq
%shuffle = shufflevector <4 x float> zeroinitializer, <4 x float> %a, <4 x i32> <i32 4, i32 1, i32 2, i32 3>
ret <4 x float> %shuffle