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[X86][AVX512] Add support for lowering shuffles to VPERMILPS

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llvm-svn: 274458
This commit is contained in:
Simon Pilgrim 2016-07-03 12:47:21 +00:00
parent 800f3b7b0d
commit 2cd46cb92f
2 changed files with 31 additions and 0 deletions
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4
lib/Target/X86/X86ISelLowering.cpp
View File

@ -11765,6 +11765,10 @@ static SDValue lowerV16F32VectorShuffle(SDLoc DL, ArrayRef<int> Mask,
return DAG.getNode(X86ISD::MOVSLDUP, DL, MVT::v16f32, V1);
if (isShuffleEquivalent(V1, V2, RepeatedMask, {1, 1, 3, 3}))
return DAG.getNode(X86ISD::MOVSHDUP, DL, MVT::v16f32, V1);
if (V2.isUndef())
return DAG.getNode(X86ISD::VPERMILPI, DL, MVT::v16f32, V1,
getV4X86ShuffleImm8ForMask(RepeatedMask, DL, DAG));
}
if (SDValue Unpck =

27
test/CodeGen/X86/vector-shuffle-512-v16.ll
View File

@ -107,6 +107,33 @@ define <16 x float> @shuffle_v16f32_01_01_03_03_05_05_07_07_09_09_11_11_13_13_15
ret <16 x float> %shuffle
}
define <16 x float> @shuffle_v16f32_00_01_00_01_06_07_06_07_08_09_10_11_12_13_12_13(<16 x float> %a, <16 x float> %b) {
; ALL-LABEL: shuffle_v16f32_00_01_00_01_06_07_06_07_08_09_10_11_12_13_12_13:
; ALL: # BB#0:
; ALL-NEXT: vpermilpd {{.*#+}} zmm0 = zmm0[0,0,3,3,4,5,6,6]
; ALL-NEXT: retq
%shuffle = shufflevector <16 x float> %a, <16 x float> %b, <16 x i32> <i32 0, i32 1, i32 0, i32 1, i32 6, i32 7, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 12, i32 13>
ret <16 x float> %shuffle
}
define <16 x float> @shuffle_v16f32_00_00_02_00_04_04_06_04_08_08_10_08_12_12_14_12(<16 x float> %a, <16 x float> %b) {
; ALL-LABEL: shuffle_v16f32_00_00_02_00_04_04_06_04_08_08_10_08_12_12_14_12:
; ALL: # BB#0:
; ALL-NEXT: vpermilps {{.*#+}} zmm0 = zmm0[0,0,2,0,4,4,6,4,8,8,10,8,12,12,14,12]
; ALL-NEXT: retq
%shuffle = shufflevector <16 x float> %a, <16 x float> %b, <16 x i32> <i32 0, i32 0, i32 2, i32 0, i32 4, i32 4, i32 6, i32 4, i32 8, i32 8, i32 10, i32 8, i32 12, i32 12, i32 14, i32 12>
ret <16 x float> %shuffle
}
define <16 x float> @shuffle_v16f32_03_uu_uu_uu_uu_04_uu_uu_uu_uu_11_uu_uu_uu_uu_12(<16 x float> %a, <16 x float> %b) {
; ALL-LABEL: shuffle_v16f32_03_uu_uu_uu_uu_04_uu_uu_uu_uu_11_uu_uu_uu_uu_12:
; ALL: # BB#0:
; ALL-NEXT: vpermilps {{.*#+}} zmm0 = zmm0[3,0,3,0,7,4,7,4,11,8,11,8,15,12,15,12]
; ALL-NEXT: retq
%shuffle = shufflevector <16 x float> %a, <16 x float> %b, <16 x i32> <i32 3, i32 undef, i32 undef, i32 undef, i32 undef, i32 4, i32 undef, i32 undef, i32 undef, i32 undef, i32 11, i32 undef, i32 undef, i32 undef, i32 undef, i32 12>
ret <16 x float> %shuffle
}
define <16 x i32> @shuffle_v16i32_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00(<16 x i32> %a, <16 x i32> %b) {
; ALL-LABEL: shuffle_v16i32_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00_00:
; ALL: # BB#0: