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//===-- Instruction.cpp - Implement the Instruction class --------*- C++ -*--=//
//
// This file implements the Instruction class for the VMCore library.
//
//===----------------------------------------------------------------------===//
#include "llvm/Instruction.h"
#include "llvm/BasicBlock.h"
#include "llvm/Method.h"
#include "llvm/SymbolTable.h"
#include "llvm/iBinary.h"
#include "llvm/iUnary.h"
Instruction::Instruction(const Type *ty, unsigned it, const string &Name)
: User(ty, Value::InstructionVal, Name) {
Parent = 0;
iType = it;
}
Instruction::~Instruction() {
assert(getParent() == 0 && "Instruction still embeded in basic block!");
}
// Specialize setName to take care of symbol table majik
void Instruction::setName(const string &name) {
BasicBlock *P = 0; Method *PP = 0;
if ((P = getParent()) && (PP = P->getParent()) && hasName())
PP->getSymbolTable()->remove(this);
Value::setName(name);
if (PP && hasName()) PP->getSymbolTableSure()->insert(this);
}
Instruction *Instruction::getBinaryOperator(unsigned Op, Value *S1, Value *S2) {
switch (Op) {
case Add:
return new AddInst(S1, S2);
case Sub:
return new SubInst(S1, S2);
case SetLT:
case SetGT:
case SetLE:
case SetGE:
case SetEQ:
case SetNE:
return new SetCondInst((BinaryOps)Op, S1, S2);
default:
cerr << "Don't know how to GetBinaryOperator " << Op << endl;
return 0;
}
}
Instruction *Instruction::getUnaryOperator(unsigned Op, Value *Source) {
switch (Op) {
default:
cerr << "Don't know how to GetUnaryOperator " << Op << endl;
return 0;
}
}
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