| //===-- 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; |
| } |
| } |