class ConstantArray;
class ConstantFP;
class ConstantVector;
+class UndefValue;
+class MDNode;
+class MDString;
class IntegerType;
class PointerType;
class StructType;
class APInt;
class APFloat;
class Value;
+class Use;
/// This is an important class for using LLVM in a threaded context. It
/// (opaquely) owns and manages the core "global" data of LLVM's core
LLVMContext();
~LLVMContext();
+ // Constant accessors
+ Constant* getNullValue(const Type* Ty);
+
+ /// @returns the value for an integer constant of the given type that has all
+ /// its bits set to true.
+ /// @brief Get the all ones value
+ Constant* getAllOnesValue(const Type* Ty);
+
+ // UndefValue accessors
+ UndefValue* getUndef(const Type* Ty);
+
// ConstantInt accessors
- ConstantInt* getConstantIntTrue();
- ConstantInt* getConstantIntFalse();
+ ConstantInt* getTrue();
+ ConstantInt* getFalse();
+
+ /// If Ty is a vector type, return a Constant with a splat of the given
+ /// value. Otherwise return a ConstantInt for the given value.
+ Constant* getConstantInt(const Type* Ty, uint64_t V,
+ bool isSigned = false);
+
+ /// Return a ConstantInt with the specified integer value for the specified
+ /// type. If the type is wider than 64 bits, the value will be zero-extended
+ /// to fit the type, unless isSigned is true, in which case the value will
+ /// be interpreted as a 64-bit signed integer and sign-extended to fit
+ /// the type.
+ /// @brief Get a ConstantInt for a specific value.
ConstantInt* getConstantInt(const IntegerType* Ty, uint64_t V,
bool isSigned = false);
+
+ /// Return a ConstantInt with the specified value for the specified type. The
+ /// value V will be canonicalized to a an unsigned APInt. Accessing it with
+ /// either getSExtValue() or getZExtValue() will yield a correctly sized and
+ /// signed value for the type Ty.
+ /// @brief Get a ConstantInt for a specific signed value.
ConstantInt* getConstantIntSigned(const IntegerType* Ty, int64_t V);
+ Constant *getConstantIntSigned(const Type *Ty, int64_t V);
+
+ /// Return a ConstantInt with the specified value and an implied Type. The
+ /// type is the integer type that corresponds to the bit width of the value.
ConstantInt* getConstantInt(const APInt& V);
+
+ /// If Ty is a vector type, return a Constant with a splat of the given
+ /// value. Otherwise return a ConstantInt for the given value.
Constant* getConstantInt(const Type* Ty, const APInt& V);
- ConstantInt* getAllOnesConstantInt(const Type* Ty);
// ConstantPointerNull accessors
ConstantPointerNull* getConstantPointerNull(const PointerType* T);
const std::vector<Constant*>& V);
Constant* getConstantArray(const ArrayType* T, Constant* const* Vals,
unsigned NumVals);
+
+ /// This method constructs a ConstantArray and initializes it with a text
+ /// string. The default behavior (AddNull==true) causes a null terminator to
+ /// be placed at the end of the array. This effectively increases the length
+ /// of the array by one (you've been warned). However, in some situations
+ /// this is not desired so if AddNull==false then the string is copied without
+ /// null termination.
Constant* getConstantArray(const std::string& Initializer,
- bool AddNull = false);
+ bool AddNull = true);
// ConstantExpr accessors
Constant* getConstantExpr(unsigned Opcode, Constant* C1, Constant* C2);
bool isSigned);
Constant* getConstantExprFPCast(Constant* C, const Type* Ty);
Constant* getConstantExprSelect(Constant* C, Constant* V1, Constant* V2);
+
+ /// getAlignOf constant expr - computes the alignment of a type in a target
+ /// independent way (Note: the return type is an i32; Note: assumes that i8
+ /// is byte aligned).
+ ///
Constant* getConstantExprAlignOf(const Type* Ty);
Constant* getConstantExprCompare(unsigned short pred,
Constant* C1, Constant* C2);
Constant* RHS);
Constant* getConstantExprFCmp(unsigned short pred, Constant* LHS,
Constant* RHS);
- Constant* getConstantExprVICmp(unsigned short pred, Constant* LHS,
- Constant* RHS);
- Constant* getConstantExprVFCmp(unsigned short pred, Constant* LHS,
- Constant* RHS);
Constant* getConstantExprShl(Constant* C1, Constant* C2);
Constant* getConstantExprLShr(Constant* C1, Constant* C2);
Constant* getConstantExprAShr(Constant* C1, Constant* C2);
Constant* getConstantExprInsertValue(Constant* Agg, Constant* Val,
const unsigned* IdxList,
unsigned NumIdx);
+
+ /// getSizeOf constant expr - computes the size of a type in a target
+ /// independent way (Note: the return type is an i64).
+ ///
+ Constant* getConstantExprSizeOf(const Type* Ty);
+
+ /// Floating point negation must be implemented with f(x) = -0.0 - x. This
+ /// method returns the negative zero constant for floating point or vector
+ /// floating point types; for all other types, it returns the null value.
Constant* getZeroValueForNegation(const Type* Ty);
// ConstantFP accessors
ConstantFP* getConstantFP(const APFloat& V);
+
+ /// get() - This returns a ConstantFP, or a vector containing a splat of a
+ /// ConstantFP, for the specified value in the specified type. This should
+ /// only be used for simple constant values like 2.0/1.0 etc, that are
+ /// known-valid both as host double and as the target format.
Constant* getConstantFP(const Type* Ty, double V);
ConstantFP* getConstantFPNegativeZero(const Type* Ty);
const std::vector<Constant*>& V);
Constant* getConstantVector(const std::vector<Constant*>& V);
Constant* getConstantVector(Constant* const* Vals, unsigned NumVals);
- ConstantVector* getConstantVectorAllOnes(const VectorType* Ty);
+
+ // MDNode accessors
+ MDNode* getMDNode(Value* const* Vals, unsigned NumVals);
+
+ // MDString accessors
+ MDString* getMDString(const char *StrBegin, const char *StrEnd);
+ MDString* getMDString(const std::string &Str);
// FunctionType accessors
+ FunctionType* getFunctionType(const Type* Result, bool isVarArg);
FunctionType* getFunctionType(const Type* Result,
const std::vector<const Type*>& Params,
bool isVarArg);
OpaqueType* getOpaqueType();
// StructType accessors
+ StructType* getStructType(bool isPacked=false);
StructType* getStructType(const std::vector<const Type*>& Params,
bool isPacked = false);
+ StructType* getStructType(const Type* type, ...);
// ArrayType accessors
ArrayType* getArrayType(const Type* ElementType, uint64_t NumElements);
// PointerType accessors
PointerType* getPointerType(const Type* ElementType, unsigned AddressSpace);
- PointerType* getPointerTypeUnqualified(const Type* ElementType);
+ PointerType* getPointerTypeUnqual(const Type* ElementType);
// VectorType accessors
VectorType* getVectorType(const Type* ElementType, unsigned NumElements);
VectorType* getVectorTypeInteger(const VectorType* VTy);
VectorType* getVectorTypeExtendedElement(const VectorType* VTy);
VectorType* getVectorTypeTruncatedElement(const VectorType* VTy);
+
+ // Other helpers
+ /// @brief Create a result type for fcmp/icmp
+ const Type* makeCmpResultType(const Type* opnd_type);
+
+ // Methods for erasing constants
+ void erase(MDString *M);
+ void erase(MDNode *M);
+ void erase(ConstantAggregateZero *Z);
+ void erase(ConstantArray *Z);
+
+ // RAUW helpers
+ Constant *replaceUsesOfWithOnConstant(ConstantArray *CA,
+ Value *From, Value *To, Use *U);
};
/// FOR BACKWARDS COMPATIBILITY - Returns a global context.
-extern const LLVMContext& getGlobalContext();
+extern LLVMContext& getGlobalContext();
}
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