llvm-mirror/lib/VMCore/LLVMContext.cpp

//===-- LLVMContext.cpp - Implement LLVMContext -----------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//  This file implements LLVMContext, as a wrapper around the opaque
//  class LLVMContextImpl.
//
//===----------------------------------------------------------------------===//

#include "llvm/LLVMContext.h"
#include "llvm/Metadata.h"
#include "llvm/Constants.h"
#include "llvm/Instruction.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/ValueHandle.h"
#include "LLVMContextImpl.h"
#include <set>

using namespace llvm;

static ManagedStatic<LLVMContext> GlobalContext;

LLVMContext& llvm::getGlobalContext() {
  return *GlobalContext;
}

LLVMContext::LLVMContext() : pImpl(new LLVMContextImpl(*this)) { }
LLVMContext::~LLVMContext() { delete pImpl; }

GetElementPtrConstantExpr::GetElementPtrConstantExpr
  (Constant *C,
   const std::vector<Constant*> &IdxList,
   const Type *DestTy)
    : ConstantExpr(DestTy, Instruction::GetElementPtr,
                   OperandTraits<GetElementPtrConstantExpr>::op_end(this)
                   - (IdxList.size()+1),
                   IdxList.size()+1) {
  OperandList[0] = C;
  for (unsigned i = 0, E = IdxList.size(); i != E; ++i)
    OperandList[i+1] = IdxList[i];
}

MetadataContext &LLVMContext::getMetadata() {
  return pImpl->TheMetadata;
}