X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=include%2Fllvm%2FIR%2FConstants.h;h=11ca8008f2953bdf2d916e6e8248e038c31d773c;hp=59be6531da30b61521f64cd18e3a405c183b7eb6;hb=81e467d35217e7c331048c474f13bc91c942a911;hpb=1b4da6c8ce0cb58d3686f4ff92119491e77a7758 diff --git a/include/llvm/IR/Constants.h b/include/llvm/IR/Constants.h index 59be6531da3..11ca8008f29 100644 --- a/include/llvm/IR/Constants.h +++ b/include/llvm/IR/Constants.h @@ -12,7 +12,7 @@ /// which represent the different flavors of constant values that live in LLVM. /// Note that Constants are immutable (once created they never change) and are /// fully shared by structural equivalence. This means that two structurally -/// equivalent constants will always have the same address. Constant's are +/// equivalent constants will always have the same address. Constants are /// created on demand as needed and never deleted: thus clients don't have to /// worry about the lifetime of the objects. // @@ -50,6 +50,11 @@ class ConstantInt : public Constant { ConstantInt(const ConstantInt &) = delete; ConstantInt(IntegerType *Ty, const APInt& V); APInt Val; + + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + protected: // allocate space for exactly zero operands void *operator new(size_t s) { @@ -231,6 +236,11 @@ class ConstantFP : public Constant { void *operator new(size_t, unsigned) = delete; ConstantFP(const ConstantFP &) = delete; friend class LLVMContextImpl; + + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + protected: ConstantFP(Type *Ty, const APFloat& V); protected: @@ -251,6 +261,7 @@ public: static Constant *get(Type* Ty, double V); static Constant *get(Type* Ty, StringRef Str); static ConstantFP *get(LLVMContext &Context, const APFloat &V); + static Constant *getNaN(Type *Ty, bool Negative = false, unsigned type = 0); static Constant *getNegativeZero(Type *Ty); static Constant *getInfinity(Type *Ty, bool Negative = false); @@ -296,6 +307,11 @@ public: class ConstantAggregateZero : public Constant { void *operator new(size_t, unsigned) = delete; ConstantAggregateZero(const ConstantAggregateZero &) = delete; + + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + protected: explicit ConstantAggregateZero(Type *ty) : Constant(ty, ConstantAggregateZeroVal, nullptr, 0) {} @@ -307,8 +323,6 @@ protected: public: static ConstantAggregateZero *get(Type *Ty); - void destroyConstant() override; - /// getSequentialElement - If this CAZ has array or vector type, return a zero /// with the right element type. Constant *getSequentialElement() const; @@ -342,6 +356,11 @@ public: class ConstantArray : public Constant { friend struct ConstantAggrKeyType; ConstantArray(const ConstantArray &) = delete; + + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + protected: ConstantArray(ArrayType *T, ArrayRef Val); public: @@ -362,9 +381,6 @@ public: return cast(Value::getType()); } - void destroyConstant() override; - void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U) override; - /// Methods for support type inquiry through isa, cast, and dyn_cast: static bool classof(const Value *V) { return V->getValueID() == ConstantArrayVal; @@ -384,6 +400,11 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantArray, Constant) class ConstantStruct : public Constant { friend struct ConstantAggrKeyType; ConstantStruct(const ConstantStruct &) = delete; + + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + protected: ConstantStruct(StructType *T, ArrayRef Val); public: @@ -420,9 +441,6 @@ public: return cast(Value::getType()); } - void destroyConstant() override; - void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U) override; - /// Methods for support type inquiry through isa, cast, and dyn_cast: static bool classof(const Value *V) { return V->getValueID() == ConstantStructVal; @@ -443,6 +461,11 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantStruct, Constant) class ConstantVector : public Constant { friend struct ConstantAggrKeyType; ConstantVector(const ConstantVector &) = delete; + + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + protected: ConstantVector(VectorType *T, ArrayRef Val); public: @@ -471,9 +494,6 @@ public: /// elements have the same value, return that value. Otherwise return NULL. Constant *getSplatValue() const; - void destroyConstant() override; - void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U) override; - /// Methods for support type inquiry through isa, cast, and dyn_cast: static bool classof(const Value *V) { return V->getValueID() == ConstantVectorVal; @@ -493,6 +513,11 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantVector, Constant) class ConstantPointerNull : public Constant { void *operator new(size_t, unsigned) = delete; ConstantPointerNull(const ConstantPointerNull &) = delete; + + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + protected: explicit ConstantPointerNull(PointerType *T) : Constant(T, @@ -507,8 +532,6 @@ public: /// get() - Static factory methods - Return objects of the specified value static ConstantPointerNull *get(PointerType *T); - void destroyConstant() override; - /// getType - Specialize the getType() method to always return an PointerType, /// which reduces the amount of casting needed in parts of the compiler. /// @@ -544,10 +567,15 @@ class ConstantDataSequential : public Constant { ConstantDataSequential *Next; void *operator new(size_t, unsigned) = delete; ConstantDataSequential(const ConstantDataSequential &) = delete; + + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + protected: explicit ConstantDataSequential(Type *ty, ValueTy VT, const char *Data) : Constant(ty, VT, nullptr, 0), DataElements(Data), Next(nullptr) {} - ~ConstantDataSequential() { delete Next; } + ~ConstantDataSequential() override { delete Next; } static Constant *getImpl(StringRef Bytes, Type *Ty); @@ -562,7 +590,7 @@ public: /// formed with a vector or array of the specified element type. /// ConstantDataArray only works with normal float and int types that are /// stored densely in memory, not with things like i42 or x86_f80. - static bool isElementTypeCompatible(const Type *Ty); + static bool isElementTypeCompatible(Type *Ty); /// getElementAsInteger - If this is a sequential container of integers (of /// any size), return the specified element in the low bits of a uint64_t. @@ -634,8 +662,6 @@ public: /// host endianness of the data elements. StringRef getRawDataValues() const; - void destroyConstant() override; - /// Methods for support type inquiry through isa, cast, and dyn_cast: /// static bool classof(const Value *V) { @@ -777,6 +803,11 @@ class BlockAddress : public Constant { void *operator new(size_t, unsigned) = delete; void *operator new(size_t s) { return User::operator new(s, 2); } BlockAddress(Function *F, BasicBlock *BB); + + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + public: /// get - Return a BlockAddress for the specified function and basic block. static BlockAddress *get(Function *F, BasicBlock *BB); @@ -797,9 +828,6 @@ public: Function *getFunction() const { return (Function*)Op<0>().get(); } BasicBlock *getBasicBlock() const { return (BasicBlock*)Op<1>().get(); } - void destroyConstant() override; - void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U) override; - /// Methods for support type inquiry through isa, cast, and dyn_cast: static inline bool classof(const Value *V) { return V->getValueID() == BlockAddressVal; @@ -824,6 +852,10 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(BlockAddress, Value) class ConstantExpr : public Constant { friend struct ConstantExprKeyType; + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + protected: ConstantExpr(Type *ty, unsigned Opcode, Use *Ops, unsigned NumOps) : Constant(ty, ConstantExprVal, Ops, NumOps) { @@ -1054,44 +1086,46 @@ public: bool OnlyIfReduced = false); /// Getelementptr form. Value* is only accepted for convenience; - /// all elements must be Constant's. + /// all elements must be Constants. /// /// \param OnlyIfReducedTy see \a getWithOperands() docs. - static Constant *getGetElementPtr(Constant *C, ArrayRef IdxList, + static Constant *getGetElementPtr(Type *Ty, Constant *C, + ArrayRef IdxList, bool InBounds = false, Type *OnlyIfReducedTy = nullptr) { return getGetElementPtr( - C, makeArrayRef((Value * const *)IdxList.data(), IdxList.size()), + Ty, C, makeArrayRef((Value * const *)IdxList.data(), IdxList.size()), InBounds, OnlyIfReducedTy); } - static Constant *getGetElementPtr(Constant *C, Constant *Idx, + static Constant *getGetElementPtr(Type *Ty, Constant *C, Constant *Idx, bool InBounds = false, Type *OnlyIfReducedTy = nullptr) { // This form of the function only exists to avoid ambiguous overload // warnings about whether to convert Idx to ArrayRef or // ArrayRef. - return getGetElementPtr(C, cast(Idx), InBounds, OnlyIfReducedTy); + return getGetElementPtr(Ty, C, cast(Idx), InBounds, OnlyIfReducedTy); } - static Constant *getGetElementPtr(Constant *C, ArrayRef IdxList, + static Constant *getGetElementPtr(Type *Ty, Constant *C, + ArrayRef IdxList, bool InBounds = false, Type *OnlyIfReducedTy = nullptr); /// Create an "inbounds" getelementptr. See the documentation for the /// "inbounds" flag in LangRef.html for details. - static Constant *getInBoundsGetElementPtr(Constant *C, + static Constant *getInBoundsGetElementPtr(Type *Ty, Constant *C, ArrayRef IdxList) { - return getGetElementPtr(C, IdxList, true); + return getGetElementPtr(Ty, C, IdxList, true); } - static Constant *getInBoundsGetElementPtr(Constant *C, + static Constant *getInBoundsGetElementPtr(Type *Ty, Constant *C, Constant *Idx) { // This form of the function only exists to avoid ambiguous overload // warnings about whether to convert Idx to ArrayRef or // ArrayRef. - return getGetElementPtr(C, Idx, true); + return getGetElementPtr(Ty, C, Idx, true); } - static Constant *getInBoundsGetElementPtr(Constant *C, + static Constant *getInBoundsGetElementPtr(Type *Ty, Constant *C, ArrayRef IdxList) { - return getGetElementPtr(C, IdxList, true); + return getGetElementPtr(Ty, C, IdxList, true); } static Constant *getExtractElement(Constant *Vec, Constant *Idx, @@ -1141,10 +1175,12 @@ public: /// gets constant-folded, the type changes, or the expression is otherwise /// canonicalized. This parameter should almost always be \c false. Constant *getWithOperands(ArrayRef Ops, Type *Ty, - bool OnlyIfReduced = false) const; + bool OnlyIfReduced = false, + Type *SrcTy = nullptr) const; - /// getAsInstruction - Returns an Instruction which implements the same operation - /// as this ConstantExpr. The instruction is not linked to any basic block. + /// getAsInstruction - Returns an Instruction which implements the same + /// operation as this ConstantExpr. The instruction is not linked to any basic + /// block. /// /// A better approach to this could be to have a constructor for Instruction /// which would take a ConstantExpr parameter, but that would have spread @@ -1152,9 +1188,6 @@ public: /// would make it harder to remove ConstantExprs altogether. Instruction *getAsInstruction(); - void destroyConstant() override; - void replaceUsesOfWithOnConstant(Value *From, Value *To, Use *U) override; - /// Methods for support type inquiry through isa, cast, and dyn_cast: static inline bool classof(const Value *V) { return V->getValueID() == ConstantExprVal; @@ -1188,6 +1221,11 @@ DEFINE_TRANSPARENT_OPERAND_ACCESSORS(ConstantExpr, Constant) class UndefValue : public Constant { void *operator new(size_t, unsigned) = delete; UndefValue(const UndefValue &) = delete; + + friend class Constant; + void destroyConstantImpl(); + Value *handleOperandChangeImpl(Value *From, Value *To, Use *U); + protected: explicit UndefValue(Type *T) : Constant(T, UndefValueVal, nullptr, 0) {} protected: @@ -1220,8 +1258,6 @@ public: /// \brief Return the number of elements in the array, vector, or struct. unsigned getNumElements() const; - void destroyConstant() override; - /// Methods for support type inquiry through isa, cast, and dyn_cast: static bool classof(const Value *V) { return V->getValueID() == UndefValueVal;