diff options
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 5 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/vector-shuffle-512-v64.ll | 11 |
2 files changed, 8 insertions, 8 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index d4a0572bedd..675a48fbed4 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -15422,6 +15422,11 @@ static SDValue lowerV64I8VectorShuffle(const SDLoc &DL, ArrayRef<int> Mask, lowerVectorShuffleWithUNPCK(DL, MVT::v64i8, Mask, V1, V2, DAG)) return V; + // Use dedicated pack instructions for masks that match their pattern. + if (SDValue V = lowerVectorShuffleWithPACK(DL, MVT::v64i8, Mask, V1, V2, DAG, + Subtarget)) + return V; + // Try to use shift instructions. if (SDValue Shift = lowerVectorShuffleAsShift(DL, MVT::v64i8, V1, V2, Mask, Zeroable, Subtarget, DAG)) diff --git a/llvm/test/CodeGen/X86/vector-shuffle-512-v64.ll b/llvm/test/CodeGen/X86/vector-shuffle-512-v64.ll index 12f746a1756..741861bc6c6 100644 --- a/llvm/test/CodeGen/X86/vector-shuffle-512-v64.ll +++ b/llvm/test/CodeGen/X86/vector-shuffle-512-v64.ll @@ -590,11 +590,7 @@ define <64 x i8> @shuffle_v64i8_shift_00_02_04_06_08_10_12_14_64_66_68_70_72_74_ ; AVX512BW: # %bb.0: ; AVX512BW-NEXT: vpsrlw $8, %zmm0, %zmm0 ; AVX512BW-NEXT: vpsrlw $8, %zmm1, %zmm1 -; AVX512BW-NEXT: vextracti64x4 $1, %zmm1, %ymm2 -; AVX512BW-NEXT: vextracti64x4 $1, %zmm0, %ymm3 -; AVX512BW-NEXT: vpackuswb %ymm2, %ymm3, %ymm2 -; AVX512BW-NEXT: vpackuswb %ymm1, %ymm0, %ymm0 -; AVX512BW-NEXT: vinserti64x4 $1, %ymm2, %zmm0, %zmm0 +; AVX512BW-NEXT: vpackuswb %zmm1, %zmm0, %zmm0 ; AVX512BW-NEXT: retq ; ; AVX512DQ-LABEL: shuffle_v64i8_shift_00_02_04_06_08_10_12_14_64_66_68_70_72_74_76_78_16_18_20_22_24_26_28_30_80_82_84_86_88_90_92_94_32_34_36_38_40_42_44_46_96_98_100_102_104_106_108_110_48_50_52_54_56_58_60_62_112_114_116_118_120_122_124_126: @@ -609,10 +605,9 @@ define <64 x i8> @shuffle_v64i8_shift_00_02_04_06_08_10_12_14_64_66_68_70_72_74_ ; ; AVX512VBMI-LABEL: shuffle_v64i8_shift_00_02_04_06_08_10_12_14_64_66_68_70_72_74_76_78_16_18_20_22_24_26_28_30_80_82_84_86_88_90_92_94_32_34_36_38_40_42_44_46_96_98_100_102_104_106_108_110_48_50_52_54_56_58_60_62_112_114_116_118_120_122_124_126: ; AVX512VBMI: # %bb.0: -; AVX512VBMI-NEXT: vpsrlw $8, %zmm0, %zmm2 +; AVX512VBMI-NEXT: vpsrlw $8, %zmm0, %zmm0 ; AVX512VBMI-NEXT: vpsrlw $8, %zmm1, %zmm1 -; AVX512VBMI-NEXT: vmovdqa64 {{.*#+}} zmm0 = [0,2,4,6,8,10,12,14,64,66,68,70,72,74,76,78,16,18,20,22,24,26,28,30,80,82,84,86,88,90,92,94,32,34,36,38,40,42,44,46,96,98,100,102,104,106,108,110,48,50,52,54,56,58,60,62,112,114,116,118,120,122,124,126] -; AVX512VBMI-NEXT: vpermi2b %zmm1, %zmm2, %zmm0 +; AVX512VBMI-NEXT: vpackuswb %zmm1, %zmm0, %zmm0 ; AVX512VBMI-NEXT: retq %1 = lshr <32 x i16> %a0, <i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8> %2 = lshr <32 x i16> %a1, <i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8, i16 8> |
