diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/Target/TargetLowering.h | 7 | ||||
| -rw-r--r-- | include/llvm/Target/TargetTransformImpl.h | 19 | ||||
| -rw-r--r-- | include/llvm/TargetTransformInfo.h | 32 |
3 files changed, 56 insertions, 2 deletions
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h index 19eb941..9d0aeaa 100644 --- a/include/llvm/Target/TargetLowering.h +++ b/include/llvm/Target/TargetLowering.h @@ -411,6 +411,13 @@ public: getOperationAction(Op, VT) == Custom); } + /// isOperationExpand - Return true if the specified operation is illegal on + /// this target or unlikely to be made legal with custom lowering. This is + /// used to help guide high-level lowering decisions. + bool isOperationExpand(unsigned Op, EVT VT) const { + return (!isTypeLegal(VT) || getOperationAction(Op, VT) == Expand); + } + /// isOperationLegal - Return true if the specified operation is legal on this /// target. bool isOperationLegal(unsigned Op, EVT VT) const { diff --git a/include/llvm/Target/TargetTransformImpl.h b/include/llvm/Target/TargetTransformImpl.h index 133be87..fd4b737 100644 --- a/include/llvm/Target/TargetTransformImpl.h +++ b/include/llvm/Target/TargetTransformImpl.h @@ -56,15 +56,32 @@ private: std::pair<unsigned, EVT> getTypeLegalizationCost(LLVMContext &C, EVT Ty) const; + /// Estimate the overhead of scalarizing an instruction. Insert and Extract + /// are set if the result needs to be inserted and/or extracted from vectors. + unsigned getScalarizationOverhead(Type *Ty, bool Insert, bool Extract) const; + public: explicit VectorTargetTransformImpl(const TargetLowering *TL) : TLI(TL) {} - + virtual ~VectorTargetTransformImpl() {} virtual unsigned getInstrCost(unsigned Opcode, Type *Ty1, Type *Ty2) const; + virtual unsigned getArithmeticInstrCost(unsigned Opcode, Type *Ty) const; + virtual unsigned getBroadcastCost(Type *Tp) const; + virtual unsigned getCastInstrCost(unsigned Opcode, Type *Dst, + Type *Src) const; + + virtual unsigned getCFInstrCost(unsigned Opcode) const; + + virtual unsigned getCmpSelInstrCost(unsigned Opcode, Type *ValTy, + Type *CondTy) const; + + virtual unsigned getVectorInstrCost(unsigned Opcode, Type *Val, + unsigned Index) const; + virtual unsigned getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment, unsigned AddressSpace) const; diff --git a/include/llvm/TargetTransformInfo.h b/include/llvm/TargetTransformInfo.h index 71c78ec..9676159 100644 --- a/include/llvm/TargetTransformInfo.h +++ b/include/llvm/TargetTransformInfo.h @@ -143,13 +143,43 @@ public: return 1; } + /// Returns the expected cost of arithmetic ops, such as mul, xor, fsub, etc. + virtual unsigned getArithmeticInstrCost(unsigned Opcode, Type *Ty) const { + return 1; + } + /// Returns the cost of a vector broadcast of a scalar at place zero to a /// vector of type 'Tp'. virtual unsigned getBroadcastCost(Type *Tp) const { return 1; } - /// Returns the cost of Load and Store instructions. + /// Returns the expected cost of cast instructions, such as bitcast, trunc, + /// zext, etc. + virtual unsigned getCastInstrCost(unsigned Opcode, Type *Dst, + Type *Src) const { + return 1; + } + + /// Returns the expected cost of control-flow related instrutctions such as + /// Phi, Ret, Br. + virtual unsigned getCFInstrCost(unsigned Opcode) const { + return 1; + } + + /// Returns the expected cost of compare and select instructions. + virtual unsigned getCmpSelInstrCost(unsigned Opcode, Type *ValTy, + Type *CondTy = 0) const { + return 1; + } + + /// Returns the expected cost of vector Insert and Extract. + virtual unsigned getVectorInstrCost(unsigned Opcode, Type *Val, + unsigned Index = 0) const { + return 1; + } + + /// Returns the cost of Load and Store instructions. virtual unsigned getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment, unsigned AddressSpace) const { |