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[X86][SLM] Fix uops for PCMPISTR/PCMPISTR instructions 

Based off a recent llvm-exegesis capture and what Intel AoM / Agner reports as well.
This commit is contained in:
Simon Pilgrim 2021-10-16 21:41:21 +01:00
parent 680afaaa5d
commit 5ed5df4802
2 changed files with 12 additions and 12 deletions
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8
llvm/lib/Target/X86/X86ScheduleSLM.td
View File

@ -430,16 +430,16 @@ defm : X86WriteResPairUnsupported<WritePHAddZ>;
// String instructions.
// Packed Compare Implicit Length Strings, Return Mask
defm : SLMWriteResPair<WritePCmpIStrM, [SLM_FPC_RSV0], 13, [13]>;
defm : SLMWriteResPair<WritePCmpIStrM, [SLM_FPC_RSV0], 13, [13], 5, 1>;
// Packed Compare Explicit Length Strings, Return Mask
defm : SLMWriteResPair<WritePCmpEStrM, [SLM_FPC_RSV0], 17, [17]>;
defm : SLMWriteResPair<WritePCmpEStrM, [SLM_FPC_RSV0], 17, [17], 8, 1>;
// Packed Compare Implicit Length Strings, Return Index
defm : SLMWriteResPair<WritePCmpIStrI, [SLM_FPC_RSV0], 17, [17]>;
defm : SLMWriteResPair<WritePCmpIStrI, [SLM_FPC_RSV0], 17, [17], 6, 1>;
// Packed Compare Explicit Length Strings, Return Index
defm : SLMWriteResPair<WritePCmpEStrI, [SLM_FPC_RSV0], 21, [21]>;
defm : SLMWriteResPair<WritePCmpEStrI, [SLM_FPC_RSV0], 21, [21], 9, 1>;
// MOVMSK Instructions.
def : WriteRes<WriteFMOVMSK, [SLM_FPC_RSV1]> { let Latency = 4; }

16
llvm/test/tools/llvm-mca/X86/SLM/resources-sse42.s
View File

@ -50,14 +50,14 @@ pcmpgtq (%rax), %xmm2
# CHECK-NEXT: 1 6 1.00 * crc32b (%rax), %rcx
# CHECK-NEXT: 1 3 1.00 crc32q %rax, %rcx
# CHECK-NEXT: 1 6 1.00 * crc32q (%rax), %rcx
# CHECK-NEXT: 1 21 21.00 pcmpestri $1, %xmm0, %xmm2
# CHECK-NEXT: 1 24 21.00 * pcmpestri $1, (%rax), %xmm2
# CHECK-NEXT: 1 17 17.00 pcmpestrm $1, %xmm0, %xmm2
# CHECK-NEXT: 1 20 17.00 * pcmpestrm $1, (%rax), %xmm2
# CHECK-NEXT: 1 17 17.00 pcmpistri $1, %xmm0, %xmm2
# CHECK-NEXT: 1 20 17.00 * pcmpistri $1, (%rax), %xmm2
# CHECK-NEXT: 1 13 13.00 pcmpistrm $1, %xmm0, %xmm2
# CHECK-NEXT: 1 16 13.00 * pcmpistrm $1, (%rax), %xmm2
# CHECK-NEXT: 9 21 21.00 pcmpestri $1, %xmm0, %xmm2
# CHECK-NEXT: 10 24 21.00 * pcmpestri $1, (%rax), %xmm2
# CHECK-NEXT: 8 17 17.00 pcmpestrm $1, %xmm0, %xmm2
# CHECK-NEXT: 9 20 17.00 * pcmpestrm $1, (%rax), %xmm2
# CHECK-NEXT: 6 17 17.00 pcmpistri $1, %xmm0, %xmm2
# CHECK-NEXT: 7 20 17.00 * pcmpistri $1, (%rax), %xmm2
# CHECK-NEXT: 5 13 13.00 pcmpistrm $1, %xmm0, %xmm2
# CHECK-NEXT: 6 16 13.00 * pcmpistrm $1, (%rax), %xmm2
# CHECK-NEXT: 1 1 0.50 pcmpgtq %xmm0, %xmm2
# CHECK-NEXT: 1 4 1.00 * pcmpgtq (%rax), %xmm2