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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-01-24 13:36:45 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-01-24 13:36:45 +0000 |
| commit | 47ca8606ba2a18d538eed933be0d70d16a6325b8 (patch) | |
| tree | c234a541197a2bb6f5ae0ded8a2fde11ab746cef /llvm/lib | |
| parent | a131e4e29601b81ce29bcda429182771de3217bc (diff) | |
| download | bcm5719-llvm-47ca8606ba2a18d538eed933be0d70d16a6325b8.tar.gz bcm5719-llvm-47ca8606ba2a18d538eed933be0d70d16a6325b8.zip | |
[TTI] Add generic SADDO/SSUBO costs
Added x86 scalar sadd_with_overflow/ssub_with_overflow costs.
llvm-svn: 352045
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/X86/X86TargetTransformInfo.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp index e1d96e7fad8..8a20c9dd9c4 100644 --- a/llvm/lib/Target/X86/X86TargetTransformInfo.cpp +++ b/llvm/lib/Target/X86/X86TargetTransformInfo.cpp @@ -2038,12 +2038,16 @@ int X86TTIImpl::getIntrinsicInstrCost(Intrinsic::ID IID, Type *RetTy, }; static const CostTblEntry X64CostTbl[] = { // 64-bit targets { ISD::BITREVERSE, MVT::i64, 14 }, + { ISD::SADDO, MVT::i64, 1 }, { ISD::UADDO, MVT::i64, 1 }, }; static const CostTblEntry X86CostTbl[] = { // 32 or 64-bit targets { ISD::BITREVERSE, MVT::i32, 14 }, { ISD::BITREVERSE, MVT::i16, 14 }, { ISD::BITREVERSE, MVT::i8, 11 }, + { ISD::SADDO, MVT::i32, 1 }, + { ISD::SADDO, MVT::i16, 1 }, + { ISD::SADDO, MVT::i8, 1 }, { ISD::UADDO, MVT::i32, 1 }, { ISD::UADDO, MVT::i16, 1 }, { ISD::UADDO, MVT::i8, 1 }, @@ -2084,6 +2088,12 @@ int X86TTIImpl::getIntrinsicInstrCost(Intrinsic::ID IID, Type *RetTy, case Intrinsic::sqrt: ISD = ISD::FSQRT; break; + case Intrinsic::sadd_with_overflow: + case Intrinsic::ssub_with_overflow: + // SSUBO has same costs so don't duplicate. + ISD = ISD::SADDO; + OpTy = RetTy->getContainedType(0); + break; case Intrinsic::uadd_with_overflow: case Intrinsic::usub_with_overflow: // USUBO has same costs so don't duplicate. |
