-//===-- llvm/InstrTypes.h - Important Instruction subclasses -----*- C++ -*--=//
+//===-- llvm/InstrTypes.h - Important Instruction subclasses ----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This file defines various meta classes of instructions that exist in the VM
// representation. Specific concrete subclasses of these may be found in the
#include "llvm/Instruction.h"
+namespace llvm {
+
//===----------------------------------------------------------------------===//
// TerminatorInst Class
//===----------------------------------------------------------------------===//
///
class TerminatorInst : public Instruction {
protected:
- TerminatorInst(Instruction::TermOps iType);
+ TerminatorInst(Instruction::TermOps iType, Instruction *InsertBefore = 0);
TerminatorInst(const Type *Ty, Instruction::TermOps iType,
- const std::string &Name = "");
+ const std::string &Name = "", Instruction *InsertBefore = 0)
+ : Instruction(Ty, iType, Name, InsertBefore) {
+ }
+ TerminatorInst(Instruction::TermOps iType, BasicBlock *InsertAtEnd);
public:
/// Terminators must implement the methods required by Instruction...
virtual void setSuccessor(unsigned idx, BasicBlock *B) = 0;
inline BasicBlock *getSuccessor(unsigned idx) {
- return (BasicBlock*)((const TerminatorInst *)this)->getSuccessor(idx);
+ const TerminatorInst *TI = this;
+ return const_cast<BasicBlock*>(TI->getSuccessor(idx));
}
// 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() >= FirstTermOp && I->getOpcode() < NumTermOps;
+ return I->getOpcode() >= TermOpsBegin && I->getOpcode() < TermOpsEnd;
}
static inline bool classof(const Value *V) {
return isa<Instruction>(V) && classof(cast<Instruction>(V));
class BinaryOperator : public Instruction {
protected:
- BinaryOperator(BinaryOps iType, Value *S1, Value *S2,
- const std::string &Name = "")
- : Instruction(S1->getType(), iType, Name) {
- Operands.reserve(2);
- Operands.push_back(Use(S1, this));
- Operands.push_back(Use(S2, this));
- assert(Operands[0] && Operands[1] &&
- Operands[0]->getType() == Operands[1]->getType());
- }
+ BinaryOperator(BinaryOps iType, Value *S1, Value *S2, const Type *Ty,
+ const std::string &Name, Instruction *InsertBefore);
public:
- /// create() - Construct a binary instruction, given the opcode
- /// and the two operands.
+ /// 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,
- const std::string &Name = "");
+ const std::string &Name = "",
+ Instruction *InsertBefore = 0);
+
/// Helper functions to construct and inspect unary operations (NEG and NOT)
/// via binary operators SUB and XOR:
/// 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 *createNot(Value *Op, const std::string &Name = "");
+ static BinaryOperator *createNeg(Value *Op, const std::string &Name = "",
+ Instruction *InsertBefore = 0);
+ static BinaryOperator *createNot(Value *Op, const std::string &Name = "",
+ Instruction *InsertBefore = 0);
/// isNeg, isNot - Check if the given Value is a NEG or NOT instruction.
///
static Value* getNotArgument( BinaryOperator* Bop);
BinaryOps getOpcode() const {
- return (BinaryOps)Instruction::getOpcode();
+ return static_cast<BinaryOps>(Instruction::getOpcode());
}
virtual Instruction *clone() const {
/// swapOperands - Exchange the two operands to this instruction.
/// This instruction is safe to use on any binary instruction and
/// does not modify the semantics of the instruction. If the
- /// instruction is order dependant (SetLT f.e.) the opcode is
+ /// instruction is order dependent (SetLT f.e.) the opcode is
/// changed. If the instruction cannot be reversed (ie, it's a Div),
/// then return true.
///
// 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() >= FirstBinaryOp && I->getOpcode() < NumBinaryOps;
+ return I->getOpcode() >= BinaryOpsBegin && I->getOpcode() < BinaryOpsEnd;
}
static inline bool classof(const Value *V) {
return isa<Instruction>(V) && classof(cast<Instruction>(V));
}
};
+} // End llvm namespace
+
#endif