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//===-- iCall.cpp - Implement the call & invoke 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 call and invoke instructions.
//
//===----------------------------------------------------------------------===//
#include "llvm/iOther.h"
#include "llvm/iTerminators.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Function.h"
namespace llvm {
//===----------------------------------------------------------------------===//
// CallInst Implementation
//===----------------------------------------------------------------------===//
CallInst::CallInst(Value *Func, const std::vector<Value*> ¶ms,
const std::string &Name, Instruction *InsertBefore)
: Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
->getElementType())->getReturnType(),
Instruction::Call, Name, InsertBefore) {
Operands.reserve(1+params.size());
Operands.push_back(Use(Func, this));
const FunctionType *MTy =
cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());
const FunctionType::ParamTypes &PL = MTy->getParamTypes();
assert(params.size() == PL.size() ||
(MTy->isVarArg() && params.size() > PL.size()) &&
"Calling a function with bad signature");
for (unsigned i = 0; i < params.size(); i++)
Operands.push_back(Use(params[i], this));
}
CallInst::CallInst(Value *Func, const std::string &Name,
Instruction *InsertBefore)
: Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
->getElementType())->getReturnType(),
Instruction::Call, Name, InsertBefore) {
Operands.reserve(1);
Operands.push_back(Use(Func, this));
const FunctionType *MTy =
cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());
const FunctionType::ParamTypes &PL = MTy->getParamTypes();
assert(PL.empty() && "Calling a function with bad signature");
}
CallInst::CallInst(Value *Func, Value* A, const std::string &Name,
Instruction *InsertBefore)
: Instruction(cast<FunctionType>(cast<PointerType>(Func->getType())
->getElementType())->getReturnType(),
Instruction::Call, Name, InsertBefore) {
Operands.reserve(2);
Operands.push_back(Use(Func, this));
const FunctionType *MTy =
cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());
const FunctionType::ParamTypes &PL = MTy->getParamTypes();
assert(PL.size() == 1 || (MTy->isVarArg() && PL.empty()) &&
"Calling a function with bad signature");
Operands.push_back(Use(A, this));
}
CallInst::CallInst(const CallInst &CI)
: Instruction(CI.getType(), Instruction::Call) {
Operands.reserve(CI.Operands.size());
for (unsigned i = 0; i < CI.Operands.size(); ++i)
Operands.push_back(Use(CI.Operands[i], this));
}
const Function *CallInst::getCalledFunction() const {
if (const Function *F = dyn_cast<Function>(Operands[0]))
return F;
if (const ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Operands[0]))
return cast<Function>(CPR->getValue());
return 0;
}
Function *CallInst::getCalledFunction() {
if (Function *F = dyn_cast<Function>(Operands[0]))
return F;
if (ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Operands[0]))
return cast<Function>(CPR->getValue());
return 0;
}
//===----------------------------------------------------------------------===//
// InvokeInst Implementation
//===----------------------------------------------------------------------===//
InvokeInst::InvokeInst(Value *Func, BasicBlock *IfNormal,
BasicBlock *IfException,
const std::vector<Value*> ¶ms,
const std::string &Name, Instruction *InsertBefore)
: TerminatorInst(cast<FunctionType>(cast<PointerType>(Func->getType())
->getElementType())->getReturnType(),
Instruction::Invoke, Name, InsertBefore) {
Operands.reserve(3+params.size());
Operands.push_back(Use(Func, this));
Operands.push_back(Use((Value*)IfNormal, this));
Operands.push_back(Use((Value*)IfException, this));
const FunctionType *MTy =
cast<FunctionType>(cast<PointerType>(Func->getType())->getElementType());
const FunctionType::ParamTypes &PL = MTy->getParamTypes();
assert((params.size() == PL.size()) ||
(MTy->isVarArg() && params.size() > PL.size()) &&
"Calling a function with bad signature");
for (unsigned i = 0; i < params.size(); i++)
Operands.push_back(Use(params[i], this));
}
InvokeInst::InvokeInst(const InvokeInst &CI)
: TerminatorInst(CI.getType(), Instruction::Invoke) {
Operands.reserve(CI.Operands.size());
for (unsigned i = 0; i < CI.Operands.size(); ++i)
Operands.push_back(Use(CI.Operands[i], this));
}
const Function *InvokeInst::getCalledFunction() const {
if (const Function *F = dyn_cast<Function>(Operands[0]))
return F;
if (const ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Operands[0]))
return cast<Function>(CPR->getValue());
return 0;
}
Function *InvokeInst::getCalledFunction() {
if (Function *F = dyn_cast<Function>(Operands[0]))
return F;
if (ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Operands[0]))
return cast<Function>(CPR->getValue());
return 0;
}
} // End llvm namespace
#include "llvm/Support/CallSite.h"
namespace llvm {
Function *CallSite::getCalledFunction() const {
Value *Callee = getCalledValue();
if (Function *F = dyn_cast<Function>(Callee))
return F;
if (ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(Callee))
return cast<Function>(CPR->getValue());
return 0;
}
} // End llvm namespace
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