#include "llvm/Instruction.h"
#include "llvm/OperandTraits.h"
+#include "llvm/DerivedTypes.h"
namespace llvm {
+class LLVMContext;
+
//===----------------------------------------------------------------------===//
// TerminatorInst Class
//===----------------------------------------------------------------------===//
virtual void setSuccessorV(unsigned idx, BasicBlock *B) = 0;
public:
- virtual Instruction *clone() const = 0;
+ virtual Instruction *clone(LLVMContext &Context) const = 0;
/// getNumSuccessors - Return the number of successors that this terminator
/// has.
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const TerminatorInst *) { return true; }
static inline bool classof(const Instruction *I) {
- return I->getOpcode() >= TermOpsBegin && I->getOpcode() < TermOpsEnd;
+ return I->isTerminator();
}
static inline bool classof(const Value *V) {
return isa<Instruction>(V) && classof(cast<Instruction>(V));
//===----------------------------------------------------------------------===//
class UnaryInstruction : public Instruction {
- void *operator new(size_t, unsigned); // Do not implement
-
+ void *operator new(size_t, unsigned); // Do not implement
+ UnaryInstruction(const UnaryInstruction&); // Do not implement
+
protected:
- UnaryInstruction(const Type *Ty, unsigned iType, Value *V, Instruction *IB = 0)
+ UnaryInstruction(const Type *Ty, unsigned iType, Value *V,
+ Instruction *IB = 0)
: Instruction(Ty, iType, &Op<0>(), 1, IB) {
Op<0>() = V;
}
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
-
+
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const UnaryInstruction *) { return true; }
static inline bool classof(const Instruction *I) {
I->getOpcode() == Instruction::Free ||
I->getOpcode() == Instruction::Load ||
I->getOpcode() == Instruction::VAArg ||
+ I->getOpcode() == Instruction::ExtractValue ||
(I->getOpcode() >= CastOpsBegin && I->getOpcode() < CastOpsEnd);
}
static inline bool classof(const Value *V) {
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
- /// create() - Construct a binary instruction, given the opcode and the two
+ /// Create() - Construct a binary instruction, given the opcode and the two
/// operands. Optionally (if InstBefore is specified) insert the instruction
/// into a BasicBlock right before the specified instruction. The specified
/// Instruction is allowed to be a dereferenced end iterator.
///
- static BinaryOperator *create(BinaryOps Op, Value *S1, Value *S2,
+ static BinaryOperator *Create(BinaryOps Op, Value *S1, Value *S2,
const std::string &Name = "",
Instruction *InsertBefore = 0);
- /// create() - Construct a binary instruction, given the opcode and the two
+ /// Create() - Construct a binary instruction, given the opcode and the two
/// operands. Also automatically insert this instruction to the end of the
/// BasicBlock specified.
///
- static BinaryOperator *create(BinaryOps Op, Value *S1, Value *S2,
+ static BinaryOperator *Create(BinaryOps Op, Value *S1, Value *S2,
const std::string &Name,
BasicBlock *InsertAtEnd);
- /// create* - These methods just forward to create, and are useful when you
+ /// Create* - These methods just forward to Create, and are useful when you
/// statically know what type of instruction you're going to create. These
/// helpers just save some typing.
#define HANDLE_BINARY_INST(N, OPC, CLASS) \
- static BinaryOperator *create##OPC(Value *V1, Value *V2, \
+ static BinaryOperator *Create##OPC(Value *V1, Value *V2, \
const std::string &Name = "") {\
- return create(Instruction::OPC, V1, V2, Name);\
+ return Create(Instruction::OPC, V1, V2, Name);\
}
#include "llvm/Instruction.def"
#define HANDLE_BINARY_INST(N, OPC, CLASS) \
- static BinaryOperator *create##OPC(Value *V1, Value *V2, \
+ static BinaryOperator *Create##OPC(Value *V1, Value *V2, \
const std::string &Name, BasicBlock *BB) {\
- return create(Instruction::OPC, V1, V2, Name, BB);\
+ return Create(Instruction::OPC, V1, V2, Name, BB);\
}
#include "llvm/Instruction.def"
#define HANDLE_BINARY_INST(N, OPC, CLASS) \
- static BinaryOperator *create##OPC(Value *V1, Value *V2, \
+ static BinaryOperator *Create##OPC(Value *V1, Value *V2, \
const std::string &Name, Instruction *I) {\
- return create(Instruction::OPC, V1, V2, Name, I);\
+ return Create(Instruction::OPC, V1, V2, Name, I);\
}
#include "llvm/Instruction.def"
/// Helper functions to construct and inspect unary operations (NEG and NOT)
/// via binary operators SUB and XOR:
///
- /// createNeg, createNot - Create the NEG and NOT
+ /// CreateNeg, CreateNot - Create the NEG and NOT
/// instructions out of SUB and XOR instructions.
///
- static BinaryOperator *createNeg(Value *Op, const std::string &Name = "",
+ static BinaryOperator *CreateNeg(LLVMContext &Context,
+ Value *Op, const std::string &Name = "",
Instruction *InsertBefore = 0);
- static BinaryOperator *createNeg(Value *Op, const std::string &Name,
+ static BinaryOperator *CreateNeg(LLVMContext &Context,
+ Value *Op, const std::string &Name,
BasicBlock *InsertAtEnd);
- static BinaryOperator *createNot(Value *Op, const std::string &Name = "",
+ static BinaryOperator *CreateFNeg(LLVMContext &Context,
+ Value *Op, const std::string &Name = "",
+ Instruction *InsertBefore = 0);
+ static BinaryOperator *CreateFNeg(LLVMContext &Context,
+ Value *Op, const std::string &Name,
+ BasicBlock *InsertAtEnd);
+ static BinaryOperator *CreateNot(LLVMContext &Context,
+ Value *Op, const std::string &Name = "",
Instruction *InsertBefore = 0);
- static BinaryOperator *createNot(Value *Op, const std::string &Name,
+ static BinaryOperator *CreateNot(LLVMContext &Context,
+ Value *Op, const std::string &Name,
BasicBlock *InsertAtEnd);
- /// isNeg, isNot - Check if the given Value is a NEG or NOT instruction.
+ /// isNeg, isFNeg, isNot - Check if the given Value is a
+ /// NEG, FNeg, or NOT instruction.
///
static bool isNeg(const Value *V);
+ static bool isFNeg(const Value *V);
static bool isNot(const Value *V);
/// getNegArgument, getNotArgument - Helper functions to extract the
- /// unary argument of a NEG or NOT operation implemented via Sub or Xor.
+ /// unary argument of a NEG, FNEG or NOT operation implemented via
+ /// Sub, FSub, or Xor.
///
static const Value *getNegArgument(const Value *BinOp);
static Value *getNegArgument( Value *BinOp);
+ static const Value *getFNegArgument(const Value *BinOp);
+ static Value *getFNegArgument( Value *BinOp);
static const Value *getNotArgument(const Value *BinOp);
static Value *getNotArgument( Value *BinOp);
return static_cast<BinaryOps>(Instruction::getOpcode());
}
- virtual BinaryOperator *clone() const;
+ virtual BinaryOperator *clone(LLVMContext &Context) const;
/// swapOperands - Exchange the two operands to this instruction.
/// This instruction is safe to use on any binary instruction and
// Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const BinaryOperator *) { return true; }
static inline bool classof(const Instruction *I) {
- return I->getOpcode() >= BinaryOpsBegin && I->getOpcode() < BinaryOpsEnd;
+ return I->isBinaryOp();
}
static inline bool classof(const Value *V) {
return isa<Instruction>(V) && classof(cast<Instruction>(V));
: UnaryInstruction(CI.getType(), CI.getOpcode(), CI.getOperand(0)) {
}
/// @brief Do not allow default construction
- CastInst();
+ CastInst();
protected:
/// @brief Constructor with insert-before-instruction semantics for subclasses
- CastInst(const Type *Ty, unsigned iType, Value *S,
- const std::string &Name = "", Instruction *InsertBefore = 0)
+ CastInst(const Type *Ty, unsigned iType, Value *S,
+ const std::string &NameStr = "", Instruction *InsertBefore = 0)
: UnaryInstruction(Ty, iType, S, InsertBefore) {
- setName(Name);
+ setName(NameStr);
}
/// @brief Constructor with insert-at-end-of-block semantics for subclasses
- CastInst(const Type *Ty, unsigned iType, Value *S,
- const std::string &Name, BasicBlock *InsertAtEnd)
+ CastInst(const Type *Ty, unsigned iType, Value *S,
+ const std::string &NameStr, BasicBlock *InsertAtEnd)
: UnaryInstruction(Ty, iType, S, InsertAtEnd) {
- setName(Name);
+ setName(NameStr);
}
public:
- /// Provides a way to construct any of the CastInst subclasses using an
+ /// Provides a way to construct any of the CastInst subclasses using an
/// opcode instead of the subclass's constructor. The opcode must be in the
/// CastOps category (Instruction::isCast(opcode) returns true). This
/// constructor has insert-before-instruction semantics to automatically
/// insert the new CastInst before InsertBefore (if it is non-null).
/// @brief Construct any of the CastInst subclasses
- static CastInst *create(
+ static CastInst *Create(
Instruction::CastOps, ///< The opcode of the cast instruction
Value *S, ///< The value to be casted (operand 0)
const Type *Ty, ///< The type to which cast should be made
/// to automatically insert the new CastInst at the end of InsertAtEnd (if
/// its non-null).
/// @brief Construct any of the CastInst subclasses
- static CastInst *create(
+ static CastInst *Create(
Instruction::CastOps, ///< The opcode for the cast instruction
Value *S, ///< The value to be casted (operand 0)
const Type *Ty, ///< The type to which operand is casted
);
/// @brief Create a ZExt or BitCast cast instruction
- static CastInst *createZExtOrBitCast(
+ static CastInst *CreateZExtOrBitCast(
Value *S, ///< The value to be casted (operand 0)
const Type *Ty, ///< The type to which cast should be made
const std::string &Name = "", ///< Name for the instruction
);
/// @brief Create a ZExt or BitCast cast instruction
- static CastInst *createZExtOrBitCast(
+ static CastInst *CreateZExtOrBitCast(
Value *S, ///< The value to be casted (operand 0)
const Type *Ty, ///< The type to which operand is casted
const std::string &Name, ///< The name for the instruction
);
/// @brief Create a SExt or BitCast cast instruction
- static CastInst *createSExtOrBitCast(
+ static CastInst *CreateSExtOrBitCast(
Value *S, ///< The value to be casted (operand 0)
const Type *Ty, ///< The type to which cast should be made
const std::string &Name = "", ///< Name for the instruction
Instruction *InsertBefore = 0 ///< Place to insert the instruction
);
+ /// @brief Create a SExt or BitCast cast instruction
+ static CastInst *CreateSExtOrBitCast(
+ Value *S, ///< The value to be casted (operand 0)
+ const Type *Ty, ///< The type to which operand is casted
+ const std::string &Name, ///< The name for the instruction
+ BasicBlock *InsertAtEnd ///< The block to insert the instruction into
+ );
+
/// @brief Create a BitCast or a PtrToInt cast instruction
- static CastInst *createPointerCast(
+ static CastInst *CreatePointerCast(
Value *S, ///< The pointer value to be casted (operand 0)
const Type *Ty, ///< The type to which operand is casted
const std::string &Name, ///< The name for the instruction
);
/// @brief Create a BitCast or a PtrToInt cast instruction
- static CastInst *createPointerCast(
+ static CastInst *CreatePointerCast(
Value *S, ///< The pointer value to be casted (operand 0)
const Type *Ty, ///< The type to which cast should be made
const std::string &Name = "", ///< Name for the instruction
);
/// @brief Create a ZExt, BitCast, or Trunc for int -> int casts.
- static CastInst *createIntegerCast(
+ static CastInst *CreateIntegerCast(
Value *S, ///< The pointer value to be casted (operand 0)
const Type *Ty, ///< The type to which cast should be made
bool isSigned, ///< Whether to regard S as signed or not
);
/// @brief Create a ZExt, BitCast, or Trunc for int -> int casts.
- static CastInst *createIntegerCast(
+ static CastInst *CreateIntegerCast(
Value *S, ///< The integer value to be casted (operand 0)
const Type *Ty, ///< The integer type to which operand is casted
bool isSigned, ///< Whether to regard S as signed or not
);
/// @brief Create an FPExt, BitCast, or FPTrunc for fp -> fp casts
- static CastInst *createFPCast(
- Value *S, ///< The floating point value to be casted
+ static CastInst *CreateFPCast(
+ Value *S, ///< The floating point value to be casted
const Type *Ty, ///< The floating point type to cast to
const std::string &Name = "", ///< Name for the instruction
Instruction *InsertBefore = 0 ///< Place to insert the instruction
);
/// @brief Create an FPExt, BitCast, or FPTrunc for fp -> fp casts
- static CastInst *createFPCast(
- Value *S, ///< The floating point value to be casted
+ static CastInst *CreateFPCast(
+ Value *S, ///< The floating point value to be casted
const Type *Ty, ///< The floating point type to cast to
const std::string &Name, ///< The name for the instruction
BasicBlock *InsertAtEnd ///< The block to insert the instruction into
);
- /// @brief Create a SExt or BitCast cast instruction
- static CastInst *createSExtOrBitCast(
- Value *S, ///< The value to be casted (operand 0)
- const Type *Ty, ///< The type to which operand is casted
- const std::string &Name, ///< The name for the instruction
- BasicBlock *InsertAtEnd ///< The block to insert the instruction into
- );
-
/// @brief Create a Trunc or BitCast cast instruction
- static CastInst *createTruncOrBitCast(
+ static CastInst *CreateTruncOrBitCast(
Value *S, ///< The value to be casted (operand 0)
const Type *Ty, ///< The type to which cast should be made
const std::string &Name = "", ///< Name for the instruction
);
/// @brief Create a Trunc or BitCast cast instruction
- static CastInst *createTruncOrBitCast(
+ static CastInst *CreateTruncOrBitCast(
Value *S, ///< The value to be casted (operand 0)
const Type *Ty, ///< The type to which operand is casted
const std::string &Name, ///< The name for the instruction
bool DstIsSigned ///< Whether to treate the dest. as signed
);
- /// There are several places where we need to know if a cast instruction
+ /// There are several places where we need to know if a cast instruction
/// only deals with integer source and destination types. To simplify that
/// logic, this method is provided.
/// @returns true iff the cast has only integral typed operand and dest type.
/// A lossless cast is one that does not alter the basic value. It implies
/// a no-op cast but is more stringent, preventing things like int->float,
- /// long->double, int->ptr, or vector->anything.
+ /// long->double, int->ptr, or vector->anything.
/// @returns true iff the cast is lossless.
/// @brief Determine if this is a lossless cast.
bool isLosslessCast() const;
- /// A no-op cast is one that can be effected without changing any bits.
+ /// A no-op cast is one that can be effected without changing any bits.
/// It implies that the source and destination types are the same size. The
- /// IntPtrTy argument is used to make accurate determinations for casts
+ /// IntPtrTy argument is used to make accurate determinations for casts
/// involving Integer and Pointer types. They are no-op casts if the integer
- /// is the same size as the pointer. However, pointer size varies with
+ /// is the same size as the pointer. However, pointer size varies with
/// platform. Generally, the result of TargetData::getIntPtrType() should be
/// passed in. If that's not available, use Type::Int64Ty, which will make
/// the isNoopCast call conservative.
- /// @brief Determine if this cast is a no-op cast.
+ /// @brief Determine if this cast is a no-op cast.
bool isNoopCast(
const Type *IntPtrTy ///< Integer type corresponding to pointer
) const;
/// Determine how a pair of casts can be eliminated, if they can be at all.
/// This is a helper function for both CastInst and ConstantExpr.
/// @returns 0 if the CastInst pair can't be eliminated
- /// @returns Instruction::CastOps value for a cast that can replace
+ /// @returns Instruction::CastOps value for a cast that can replace
/// the pair, casting SrcTy to DstTy.
/// @brief Determine if a cast pair is eliminable
static unsigned isEliminableCastPair(
);
/// @brief Return the opcode of this CastInst
- Instruction::CastOps getOpcode() const {
- return Instruction::CastOps(Instruction::getOpcode());
+ Instruction::CastOps getOpcode() const {
+ return Instruction::CastOps(Instruction::getOpcode());
}
/// @brief Return the source type, as a convenience
const Type* getDestTy() const { return getType(); }
/// This method can be used to determine if a cast from S to DstTy using
- /// Opcode op is valid or not.
+ /// Opcode op is valid or not.
/// @returns true iff the proposed cast is valid.
/// @brief Determine if a cast is valid without creating one.
static bool castIsValid(Instruction::CastOps op, Value *S, const Type *DstTy);
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const CastInst *) { return true; }
static inline bool classof(const Instruction *I) {
- return I->getOpcode() >= CastOpsBegin && I->getOpcode() < CastOpsEnd;
+ return I->isCast();
}
static inline bool classof(const Value *V) {
return isa<Instruction>(V) && classof(cast<Instruction>(V));
// CmpInst Class
//===----------------------------------------------------------------------===//
-/// This class is the base class for the comparison instructions.
+/// This class is the base class for the comparison instructions.
/// @brief Abstract base class of comparison instructions.
// FIXME: why not derive from BinaryOperator?
class CmpInst: public Instruction {
CmpInst(const Type *ty, Instruction::OtherOps op, unsigned short pred,
Value *LHS, Value *RHS, const std::string &Name = "",
Instruction *InsertBefore = 0);
-
+
CmpInst(const Type *ty, Instruction::OtherOps op, unsigned short pred,
Value *LHS, Value *RHS, const std::string &Name,
BasicBlock *InsertAtEnd);
void *operator new(size_t s) {
return User::operator new(s, 2);
}
- /// Construct a compare instruction, given the opcode, the predicate and
- /// the two operands. Optionally (if InstBefore is specified) insert the
- /// instruction into a BasicBlock right before the specified instruction.
+ /// Construct a compare instruction, given the opcode, the predicate and
+ /// the two operands. Optionally (if InstBefore is specified) insert the
+ /// instruction into a BasicBlock right before the specified instruction.
/// The specified Instruction is allowed to be a dereferenced end iterator.
/// @brief Create a CmpInst
- static CmpInst *create(OtherOps Op, unsigned short predicate, Value *S1,
+ static CmpInst *Create(LLVMContext &Context, OtherOps Op,
+ unsigned short predicate, Value *S1,
Value *S2, const std::string &Name = "",
Instruction *InsertBefore = 0);
- /// Construct a compare instruction, given the opcode, the predicate and the
- /// two operands. Also automatically insert this instruction to the end of
+ /// Construct a compare instruction, given the opcode, the predicate and the
+ /// two operands. Also automatically insert this instruction to the end of
/// the BasicBlock specified.
/// @brief Create a CmpInst
- static CmpInst *create(OtherOps Op, unsigned short predicate, Value *S1,
- Value *S2, const std::string &Name,
+ static CmpInst *Create(OtherOps Op, unsigned short predicate, Value *S1,
+ Value *S2, const std::string &Name,
BasicBlock *InsertAtEnd);
/// @brief Get the opcode casted to the right type
return static_cast<OtherOps>(Instruction::getOpcode());
}
- /// The predicate for CmpInst is defined by the subclasses but stored in
- /// the SubclassData field (see Value.h). We allow it to be fetched here
- /// as the predicate but there is no enum type for it, just the raw unsigned
- /// short. This facilitates comparison of CmpInst instances without delving
- /// into the subclasses since predicate values are distinct between the
- /// CmpInst subclasses.
/// @brief Return the predicate for this instruction.
- unsigned short getPredicate() const {
- return SubclassData;
+ Predicate getPredicate() const { return Predicate(SubclassData); }
+
+ /// @brief Set the predicate for this instruction to the specified value.
+ void setPredicate(Predicate P) { SubclassData = P; }
+
+ /// For example, EQ -> NE, UGT -> ULE, SLT -> SGE,
+ /// OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
+ /// @returns the inverse predicate for the instruction's current predicate.
+ /// @brief Return the inverse of the instruction's predicate.
+ Predicate getInversePredicate() const {
+ return getInversePredicate(getPredicate());
}
+ /// For example, EQ -> NE, UGT -> ULE, SLT -> SGE,
+ /// OEQ -> UNE, UGT -> OLE, OLT -> UGE, etc.
+ /// @returns the inverse predicate for predicate provided in \p pred.
+ /// @brief Return the inverse of a given predicate
+ static Predicate getInversePredicate(Predicate pred);
+
+ /// For example, EQ->EQ, SLE->SGE, ULT->UGT,
+ /// OEQ->OEQ, ULE->UGE, OLT->OGT, etc.
+ /// @returns the predicate that would be the result of exchanging the two
+ /// operands of the CmpInst instruction without changing the result
+ /// produced.
+ /// @brief Return the predicate as if the operands were swapped
+ Predicate getSwappedPredicate() const {
+ return getSwappedPredicate(getPredicate());
+ }
+
+ /// This is a static version that you can use without an instruction
+ /// available.
+ /// @brief Return the predicate as if the operands were swapped.
+ static Predicate getSwappedPredicate(Predicate pred);
+
/// @brief Provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
/// @brief Methods for support type inquiry through isa, cast, and dyn_cast:
static inline bool classof(const CmpInst *) { return true; }
static inline bool classof(const Instruction *I) {
- return I->getOpcode() == Instruction::ICmp ||
- I->getOpcode() == Instruction::FCmp ||
- I->getOpcode() == Instruction::VICmp ||
- I->getOpcode() == Instruction::VFCmp;
+ return I->getOpcode() == Instruction::ICmp ||
+ I->getOpcode() == Instruction::FCmp;
}
static inline bool classof(const Value *V) {
return isa<Instruction>(V) && classof(cast<Instruction>(V));
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