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[CostModel][X86] Add missing i8 throughput cost

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Simon Pilgrim 2022-09-09 10:58:40 +01:00
parent 27cc31b64c
commit 55b78e28d8
2 changed files with 19 additions and 18 deletions
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5
llvm/lib/Target/X86/X86TargetTransformInfo.cpp
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@ -3616,8 +3616,9 @@ X86TTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
{ ISD::UMULO, MVT::i64, { 2 } }, // mulq + seto
};
static const CostKindTblEntry X86CostTbl[] = { // 32 or 64-bit targets
{ ISD::ABS, MVT::i32, { 2 } }, // SUB+CMOV
{ ISD::ABS, MVT::i16, { 2 } }, // SUB+CMOV
{ ISD::ABS, MVT::i32, { 2 } }, // SUB+XOR+SRA or SUB+CMOV
{ ISD::ABS, MVT::i16, { 2 } }, // SUB+XOR+SRA or SUB+CMOV
{ ISD::ABS, MVT::i8, { 2 } }, // SUB+XOR+SRA
{ ISD::BITREVERSE, MVT::i32, { 14 } },
{ ISD::BITREVERSE, MVT::i16, { 14 } },
{ ISD::BITREVERSE, MVT::i8, { 11 } },

32
llvm/test/Analysis/CostModel/X86/abs.ll
View File

@ -178,56 +178,56 @@ define void @cost_abs_i16(i16 %a16, <8 x i16> %a128, <16 x i16> %a256, <32 x i16
define void @cost_abs_i8(i8 %a8, <16 x i8> %a128, <32 x i8> %a256, <64 x i8> %a512) {
; SSE2-LABEL: 'cost_abs_i8'
; SSE2-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; SSE2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; SSE2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 false)
; SSE2-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 false)
; SSE2-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 false)
; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; SSSE3-LABEL: 'cost_abs_i8'
; SSSE3-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; SSSE3-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; SSSE3-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 false)
; SSSE3-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 false)
; SSSE3-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 false)
; SSSE3-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; SSE42-LABEL: 'cost_abs_i8'
; SSE42-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; SSE42-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; SSE42-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 false)
; SSE42-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 false)
; SSE42-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 false)
; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; AVX1-LABEL: 'cost_abs_i8'
; AVX1-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; AVX1-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; AVX1-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 false)
; AVX1-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 false)
; AVX1-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 false)
; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; AVX2-LABEL: 'cost_abs_i8'
; AVX2-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; AVX2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; AVX2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 false)
; AVX2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 false)
; AVX2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 false)
; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; AVX512F-LABEL: 'cost_abs_i8'
; AVX512F-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; AVX512F-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; AVX512F-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 false)
; AVX512F-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 false)
; AVX512F-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 false)
; AVX512F-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; AVX512DQ-LABEL: 'cost_abs_i8'
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 false)
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 false)
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 false)
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; AVX512BW-LABEL: 'cost_abs_i8'
; AVX512BW-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; AVX512BW-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 false)
; AVX512BW-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 false)
; AVX512BW-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 false)
; AVX512BW-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 false)
@ -410,56 +410,56 @@ define void @cost_abs_i16_poison(i16 %a16, <8 x i16> %a128, <16 x i16> %a256, <3
define void @cost_abs_i8_poison(i8 %a8, <16 x i8> %a128, <32 x i8> %a256, <64 x i8> %a512) {
; SSE2-LABEL: 'cost_abs_i8_poison'
; SSE2-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; SSE2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; SSE2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 true)
; SSE2-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 true)
; SSE2-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 true)
; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; SSSE3-LABEL: 'cost_abs_i8_poison'
; SSSE3-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; SSSE3-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; SSSE3-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 true)
; SSSE3-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 true)
; SSSE3-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 true)
; SSSE3-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; SSE42-LABEL: 'cost_abs_i8_poison'
; SSE42-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; SSE42-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; SSE42-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 true)
; SSE42-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 true)
; SSE42-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 true)
; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; AVX1-LABEL: 'cost_abs_i8_poison'
; AVX1-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; AVX1-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; AVX1-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 true)
; AVX1-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 true)
; AVX1-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 true)
; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; AVX2-LABEL: 'cost_abs_i8_poison'
; AVX2-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; AVX2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; AVX2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 true)
; AVX2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 true)
; AVX2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 true)
; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; AVX512F-LABEL: 'cost_abs_i8_poison'
; AVX512F-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; AVX512F-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; AVX512F-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 true)
; AVX512F-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 true)
; AVX512F-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 true)
; AVX512F-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; AVX512DQ-LABEL: 'cost_abs_i8_poison'
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 true)
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 true)
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 true)
; AVX512DQ-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
;
; AVX512BW-LABEL: 'cost_abs_i8_poison'
; AVX512BW-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; AVX512BW-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %I8 = call i8 @llvm.abs.i8(i8 %a8, i1 true)
; AVX512BW-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V16I8 = call <16 x i8> @llvm.abs.v16i8(<16 x i8> %a128, i1 true)
; AVX512BW-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V32I8 = call <32 x i8> @llvm.abs.v32i8(<32 x i8> %a256, i1 true)
; AVX512BW-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %V64I8 = call <64 x i8> @llvm.abs.v64i8(<64 x i8> %a512, i1 true)