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author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2024-04-04 12:26:25 +0100 |
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committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2024-04-04 12:26:35 +0100 |
commit | 3871eaba6bd016b229f2d0e4b75e2be3b65e39a7 (patch) | |
tree | bcc37f98c04707e6f749a1b1e55641085a0525e3 /llvm | |
parent | d54d476300d7aaeb6616a11b43e1b8006cad17c9 (diff) | |
download | llvm-3871eaba6bd016b229f2d0e4b75e2be3b65e39a7.zip llvm-3871eaba6bd016b229f2d0e4b75e2be3b65e39a7.tar.gz llvm-3871eaba6bd016b229f2d0e4b75e2be3b65e39a7.tar.bz2 |
[CostModel][X86] Update AVX1 sext v8i1 -> v8i32 cost based off worst case llvm-mca numbers
We were using raw instruction count which overestimated the costs for #67803
Diffstat (limited to 'llvm')
-rw-r--r-- | llvm/lib/Target/X86/X86TargetTransformInfo.cpp | 2 | ||||
-rw-r--r-- | llvm/test/Analysis/CostModel/X86/cast.ll | 6 | ||||
-rw-r--r-- | llvm/test/Analysis/CostModel/X86/extend.ll | 4 |
3 files changed, 6 insertions, 6 deletions
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp index 2ec2946..2092675 100644 --- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp @@ -2666,7 +2666,7 @@ InstructionCost X86TTIImpl::getCastInstrCost(unsigned Opcode, Type *Dst, static const TypeConversionCostTblEntry AVXConversionTbl[] = { { ISD::SIGN_EXTEND, MVT::v4i64, MVT::v4i1, 6 }, { ISD::ZERO_EXTEND, MVT::v4i64, MVT::v4i1, 4 }, - { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i1, 7 }, + { ISD::SIGN_EXTEND, MVT::v8i32, MVT::v8i1, 4 }, { ISD::ZERO_EXTEND, MVT::v8i32, MVT::v8i1, 4 }, { ISD::SIGN_EXTEND, MVT::v16i16, MVT::v16i1, 4 }, { ISD::ZERO_EXTEND, MVT::v16i16, MVT::v16i1, 4 }, diff --git a/llvm/test/Analysis/CostModel/X86/cast.ll b/llvm/test/Analysis/CostModel/X86/cast.ll index 64ed9bed..d80cb09 100644 --- a/llvm/test/Analysis/CostModel/X86/cast.ll +++ b/llvm/test/Analysis/CostModel/X86/cast.ll @@ -35,7 +35,7 @@ define i32 @add(i32 %arg) { ; AVX1-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %B = sext <4 x i1> undef to <4 x i32> ; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %C = trunc <4 x i32> undef to <4 x i1> ; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %D = zext <8 x i1> undef to <8 x i32> -; AVX1-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %E = sext <8 x i1> undef to <8 x i32> +; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %E = sext <8 x i1> undef to <8 x i32> ; AVX1-NEXT: Cost Model: Found an estimated cost of 5 for instruction: %F = trunc <8 x i32> undef to <8 x i1> ; AVX1-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %G = zext i1 undef to i32 ; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %H = trunc i32 undef to i1 @@ -143,7 +143,7 @@ define i32 @zext_sext(<8 x i1> %in) { ; ; AVX1-LABEL: 'zext_sext' ; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %Z = zext <8 x i1> %in to <8 x i32> -; AVX1-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %S = sext <8 x i1> %in to <8 x i32> +; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %S = sext <8 x i1> %in to <8 x i32> ; AVX1-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %A1 = zext <16 x i8> undef to <16 x i16> ; AVX1-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %A2 = sext <16 x i8> undef to <16 x i16> ; AVX1-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %A = sext <8 x i16> undef to <8 x i32> @@ -343,7 +343,7 @@ define i32 @masks8(<8 x i1> %in) { ; ; AVX1-LABEL: 'masks8' ; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %Z = zext <8 x i1> %in to <8 x i32> -; AVX1-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %S = sext <8 x i1> %in to <8 x i32> +; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %S = sext <8 x i1> %in to <8 x i32> ; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef ; ; AVX2-LABEL: 'masks8' diff --git a/llvm/test/Analysis/CostModel/X86/extend.ll b/llvm/test/Analysis/CostModel/X86/extend.ll index 01efced..34fa3c4 100644 --- a/llvm/test/Analysis/CostModel/X86/extend.ll +++ b/llvm/test/Analysis/CostModel/X86/extend.ll @@ -1971,7 +1971,7 @@ define i32 @sext_vXi1() "min-legal-vector-width"="256" { ; AVX1-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %I32 = sext i1 undef to i32 ; AVX1-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V2i32 = sext <2 x i1> undef to <2 x i32> ; AVX1-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V4i32 = sext <4 x i1> undef to <4 x i32> -; AVX1-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %V8i32 = sext <8 x i1> undef to <8 x i32> +; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V8i32 = sext <8 x i1> undef to <8 x i32> ; AVX1-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %V16i32 = sext <16 x i1> undef to <16 x i32> ; AVX1-NEXT: Cost Model: Found an estimated cost of 13 for instruction: %V32i32 = sext <32 x i1> undef to <32 x i32> ; AVX1-NEXT: Cost Model: Found an estimated cost of 26 for instruction: %V64i32 = sext <64 x i1> undef to <64 x i32> @@ -2251,7 +2251,7 @@ define i32 @sext_vXi1() "min-legal-vector-width"="256" { ; BTVER2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %I32 = sext i1 undef to i32 ; BTVER2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V2i32 = sext <2 x i1> undef to <2 x i32> ; BTVER2-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %V4i32 = sext <4 x i1> undef to <4 x i32> -; BTVER2-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %V8i32 = sext <8 x i1> undef to <8 x i32> +; BTVER2-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %V8i32 = sext <8 x i1> undef to <8 x i32> ; BTVER2-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %V16i32 = sext <16 x i1> undef to <16 x i32> ; BTVER2-NEXT: Cost Model: Found an estimated cost of 13 for instruction: %V32i32 = sext <32 x i1> undef to <32 x i32> ; BTVER2-NEXT: Cost Model: Found an estimated cost of 26 for instruction: %V64i32 = sext <64 x i1> undef to <64 x i32> |