[X86] Make sure the prologue does not clobber EFLAGS when it lives accross it.

[oota-llvm.git] / lib / Target / X86 / X86TargetTransformInfo.h

diff --git a/lib/Target/X86/X86TargetTransformInfo.h b/lib/Target/X86/X86TargetTransformInfo.h
index 26b8e53880f8433338f5f111d3d28972d6dd2b45..e337475ed410b9f461b070ce0a00c9655dacb1b5 100644 (file)
--- a/lib/Target/X86/X86TargetTransformInfo.h
+++ b/lib/Target/X86/X86TargetTransformInfo.h
@@ -28,16 +28,20 @@ namespace llvm {
 class X86TTIImpl : public BasicTTIImplBase<X86TTIImpl> {
   typedef BasicTTIImplBase<X86TTIImpl> BaseT;
   typedef TargetTransformInfo TTI;
+  friend BaseT;
 
   const X86Subtarget *ST;
   const X86TargetLowering *TLI;
 
-  unsigned getScalarizationOverhead(Type *Ty, bool Insert, bool Extract);
+  int getScalarizationOverhead(Type *Ty, bool Insert, bool Extract);
+
+  const X86Subtarget *getST() const { return ST; }
+  const X86TargetLowering *getTLI() const { return TLI; }
 
 public:
-  explicit X86TTIImpl(const X86TargetMachine *TM = nullptr)
-      : BaseT(TM), ST(TM ? TM->getSubtargetImpl() : nullptr),
-        TLI(ST ? ST->getTargetLowering() : nullptr) {}
+  explicit X86TTIImpl(const X86TargetMachine *TM, const Function &F)
+      : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
+        TLI(ST->getTargetLowering()) {}
 
   // Provide value semantics. MSVC requires that we spell all of these out.
   X86TTIImpl(const X86TTIImpl &Arg)
@@ -45,18 +49,6 @@ public:
   X86TTIImpl(X86TTIImpl &&Arg)
       : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
         TLI(std::move(Arg.TLI)) {}
-  X86TTIImpl &operator=(const X86TTIImpl &RHS) {
-    BaseT::operator=(static_cast<const BaseT &>(RHS));
-    ST = RHS.ST;
-    TLI = RHS.TLI;
-    return *this;
-  }
-  X86TTIImpl &operator=(X86TTIImpl &&RHS) {
-    BaseT::operator=(std::move(static_cast<BaseT &>(RHS)));
-    ST = std::move(RHS.ST);
-    TLI = std::move(RHS.TLI);
-    return *this;
-  }
 
   /// \name Scalar TTI Implementations
   /// @{
@@ -69,41 +61,42 @@ public:
 
   unsigned getNumberOfRegisters(bool Vector);
   unsigned getRegisterBitWidth(bool Vector);
-  unsigned getMaxInterleaveFactor();
-  unsigned getArithmeticInstrCost(
+  unsigned getMaxInterleaveFactor(unsigned VF);
+  int getArithmeticInstrCost(
       unsigned Opcode, Type *Ty,
       TTI::OperandValueKind Opd1Info = TTI::OK_AnyValue,
       TTI::OperandValueKind Opd2Info = TTI::OK_AnyValue,
       TTI::OperandValueProperties Opd1PropInfo = TTI::OP_None,
       TTI::OperandValueProperties Opd2PropInfo = TTI::OP_None);
-  unsigned getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index,
-                          Type *SubTp);
-  unsigned getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src);
-  unsigned getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy);
-  unsigned getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index);
-  unsigned getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
-                           unsigned AddressSpace);
-  unsigned getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
-                                 unsigned AddressSpace);
+  int getShuffleCost(TTI::ShuffleKind Kind, Type *Tp, int Index, Type *SubTp);
+  int getCastInstrCost(unsigned Opcode, Type *Dst, Type *Src);
+  int getCmpSelInstrCost(unsigned Opcode, Type *ValTy, Type *CondTy);
+  int getVectorInstrCost(unsigned Opcode, Type *Val, unsigned Index);
+  int getMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
+                      unsigned AddressSpace);
+  int getMaskedMemoryOpCost(unsigned Opcode, Type *Src, unsigned Alignment,
+                            unsigned AddressSpace);
 
-  unsigned getAddressComputationCost(Type *PtrTy, bool IsComplex);
+  int getAddressComputationCost(Type *PtrTy, bool IsComplex);
 
-  unsigned getReductionCost(unsigned Opcode, Type *Ty, bool IsPairwiseForm);
+  int getReductionCost(unsigned Opcode, Type *Ty, bool IsPairwiseForm);
 
-  unsigned getIntImmCost(int64_t);
+  int getIntImmCost(int64_t);
 
-  unsigned getIntImmCost(const APInt &Imm, Type *Ty);
+  int getIntImmCost(const APInt &Imm, Type *Ty);
 
-  unsigned getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm,
-                         Type *Ty);
-  unsigned getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
-                         Type *Ty);
-  bool isLegalMaskedLoad(Type *DataType, int Consecutive);
-  bool isLegalMaskedStore(Type *DataType, int Consecutive);
+  int getIntImmCost(unsigned Opcode, unsigned Idx, const APInt &Imm, Type *Ty);
+  int getIntImmCost(Intrinsic::ID IID, unsigned Idx, const APInt &Imm,
+                    Type *Ty);
+  bool isLegalMaskedLoad(Type *DataType);
+  bool isLegalMaskedStore(Type *DataType);
+  bool isLegalMaskedGather(Type *DataType);
+  bool isLegalMaskedScatter(Type *DataType);
+  bool areInlineCompatible(const Function *Caller,
+                           const Function *Callee) const;
 
   /// @}
 };
-;
 
 } // end namespace llvm