diff options
Diffstat (limited to 'lib/CodeGen/BasicTargetTransformInfo.cpp')
| -rw-r--r-- | lib/CodeGen/BasicTargetTransformInfo.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/CodeGen/BasicTargetTransformInfo.cpp b/lib/CodeGen/BasicTargetTransformInfo.cpp index b48b817..24aa1ab 100644 --- a/lib/CodeGen/BasicTargetTransformInfo.cpp +++ b/lib/CodeGen/BasicTargetTransformInfo.cpp @@ -83,6 +83,8 @@ public: virtual unsigned getJumpBufAlignment() const; virtual unsigned getJumpBufSize() const; virtual bool shouldBuildLookupTables() const; + virtual bool haveFastSqrt(Type *Ty) const; + virtual void getUnrollingPreferences(Loop *L, UnrollingPreferences &UP) const; /// @} @@ -111,6 +113,7 @@ public: ArrayRef<Type*> Tys) const; virtual unsigned getNumberOfParts(Type *Tp) const; virtual unsigned getAddressComputationCost(Type *Ty, bool IsComplex) const; + virtual unsigned getReductionCost(unsigned Opcode, Type *Ty, bool IsPairwise) const; /// @} }; @@ -182,6 +185,14 @@ bool BasicTTI::shouldBuildLookupTables() const { TLI->isOperationLegalOrCustom(ISD::BRIND, MVT::Other)); } +bool BasicTTI::haveFastSqrt(Type *Ty) const { + const TargetLoweringBase *TLI = getTLI(); + EVT VT = TLI->getValueType(Ty); + return TLI->isTypeLegal(VT) && TLI->isOperationLegalOrCustom(ISD::FSQRT, VT); +} + +void BasicTTI::getUnrollingPreferences(Loop *, UnrollingPreferences &) const { } + //===----------------------------------------------------------------------===// // // Calls used by the vectorizers. @@ -443,12 +454,14 @@ unsigned BasicTTI::getIntrinsicInstrCost(Intrinsic::ID IID, Type *RetTy, case Intrinsic::log10: ISD = ISD::FLOG10; break; case Intrinsic::log2: ISD = ISD::FLOG2; break; case Intrinsic::fabs: ISD = ISD::FABS; break; + case Intrinsic::copysign: ISD = ISD::FCOPYSIGN; break; case Intrinsic::floor: ISD = ISD::FFLOOR; break; case Intrinsic::ceil: ISD = ISD::FCEIL; break; case Intrinsic::trunc: ISD = ISD::FTRUNC; break; case Intrinsic::nearbyint: ISD = ISD::FNEARBYINT; break; case Intrinsic::rint: ISD = ISD::FRINT; break; + case Intrinsic::round: ISD = ISD::FROUND; break; case Intrinsic::pow: ISD = ISD::FPOW; break; case Intrinsic::fma: ISD = ISD::FMA; break; case Intrinsic::fmuladd: ISD = ISD::FMA; break; // FIXME: mul + add? @@ -498,3 +511,17 @@ unsigned BasicTTI::getNumberOfParts(Type *Tp) const { unsigned BasicTTI::getAddressComputationCost(Type *Ty, bool IsComplex) const { return 0; } + +unsigned BasicTTI::getReductionCost(unsigned Opcode, Type *Ty, + bool IsPairwise) const { + assert(Ty->isVectorTy() && "Expect a vector type"); + unsigned NumVecElts = Ty->getVectorNumElements(); + unsigned NumReduxLevels = Log2_32(NumVecElts); + unsigned ArithCost = NumReduxLevels * + TopTTI->getArithmeticInstrCost(Opcode, Ty); + // Assume the pairwise shuffles add a cost. + unsigned ShuffleCost = + NumReduxLevels * (IsPairwise + 1) * + TopTTI->getShuffleCost(SK_ExtractSubvector, Ty, NumVecElts / 2, Ty); + return ShuffleCost + ArithCost + getScalarizationOverhead(Ty, false, true); +} |