path: root/lib/VMCore/Instructions.cpp

//===-- Instructions.cpp - Implement the LLVM instructions ----------------===//
// 
//                     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 implements the LLVM instructions...
//
//===----------------------------------------------------------------------===//

#include "llvm/BasicBlock.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Function.h"
#include "llvm/Instructions.h"
#include "llvm/Support/CallSite.h"
using namespace llvm;

//===----------------------------------------------------------------------===//
//                        CallInst Implementation
//===----------------------------------------------------------------------===//

void CallInst::init(Value *Func, const std::vector<Value*> &Params)
{
  Operands.reserve(1+Params.size());
  Operands.push_back(Use(Func, this));

  const FunctionType *FTy = 
    cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());

  assert((Params.size() == FTy->getNumParams() || 
          (FTy->isVarArg() && Params.size() > FTy->getNumParams())) &&
         "Calling a function with bad signature");
  for (unsigned i = 0; i != Params.size(); i++)
    Operands.push_back(Use(Params[i], this));
}

void CallInst::init(Value *Func, Value *Actual1, Value *Actual2)
{
  Operands.reserve(3);
  Operands.push_back(Use(Func, this));
  
  const FunctionType *MTy = 
    cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());

  assert((MTy->getNumParams() == 2 ||
          (MTy->isVarArg() && MTy->getNumParams() == 0)) &&
         "Calling a function with bad signature");
  Operands.push_back(Use(Actual1, this));
  Operands.push_back(Use(Actual2, this));
}

void CallInst::init(Value *Func, Value *Actual)
{
  Operands.reserve(2);
  Operands.push_back(Use(Func, this));
  
  const FunctionType *MTy = 
    cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());

  assert((MTy->getNumParams() == 1 ||
          (MTy->isVarArg() && MTy->getNumParams() == 0)) &&
         "Calling a function with bad signature");
  Operands.push_back(Use(Actual, this));
}

void CallInst::init(Value *Func)
{
  Operands.reserve(1);
  Operands.push_back(Use(Func, this));
  
  const FunctionType *MTy = 
    cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());

  assert(MTy->getNumParams() == 0 && "Calling a function with bad signature");
}

CallInst::CallInst(Value *Func, const std::vector<Value*> &Params, 
                   const std::string &Name, Instruction *InsertBefore) 
  : Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
                                 ->getElementType())->getReturnType(),
                Instruction::Call, Name, InsertBefore) {
  init(Func, Params);
}

CallInst::CallInst(Value *Func, const std::vector<Value*> &Params, 
                   const std::string &Name, BasicBlock *InsertAtEnd) 
  : Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
                                 ->getElementType())->getReturnType(),
                Instruction::Call, Name, InsertAtEnd) {
  init(Func, Params);
}

CallInst::CallInst(Value *Func, Value *Actual1, Value *Actual2,
                   const std::string &Name, Instruction  *InsertBefore)
  : Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
                                   ->getElementType())->getReturnType(),
                Instruction::Call, Name, InsertBefore) {
  init(Func, Actual1, Actual2);
}

CallInst::CallInst(Value *Func, Value *Actual1, Value *Actual2,
                   const std::string &Name, BasicBlock  *InsertAtEnd)
  : Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
                                   ->getElementType())->getReturnType(),
                Instruction::Call, Name, InsertAtEnd) {
  init(Func, Actual1, Actual2);
}

CallInst::CallInst(Value *Func, Value* Actual, const std::string &Name,
                   Instruction  *InsertBefore)
  : Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
                                   ->getElementType())->getReturnType(),
                Instruction::Call, Name, InsertBefore) {
  init(Func, Actual);
}

CallInst::CallInst(Value *Func, Value* Actual, const std::string