path: root/lib/CodeGen/CodeGenFunction.h

//===-- CodeGenFunction.h - Per-Function state for LLVM CodeGen -*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This is the internal per-function state used for llvm translation.
//
//===----------------------------------------------------------------------===//

#ifndef CLANG_CODEGEN_CODEGENFUNCTION_H
#define CLANG_CODEGEN_CODEGENFUNCTION_H

#include "clang/AST/Type.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/ExprObjC.h"
#include "clang/AST/CharUnits.h"
#include "clang/Basic/TargetInfo.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/ValueHandle.h"
#include <map>
#include "CodeGenModule.h"
#include "CGBlocks.h"
#include "CGBuilder.h"
#include "CGCall.h"
#include "CGCXX.h"
#include "CGValue.h"

namespace llvm {
  class BasicBlock;
  class LLVMContext;
  class Module;
  class SwitchInst;
  class Twine;
  class Value;
}

namespace clang {
  class ASTContext;
  class CXXDestructorDecl;
  class CXXTryStmt;
  class Decl;
  class EnumConstantDecl;
  class FunctionDecl;
  class FunctionProtoType;
  class LabelStmt;
  class ObjCContainerDecl;
  class ObjCInterfaceDecl;
  class ObjCIvarDecl;
  class ObjCMethodDecl;
  class ObjCImplementationDecl;
  class ObjCPropertyImplDecl;
  class TargetInfo;
  class VarDecl;
  class ObjCForCollectionStmt;
  class ObjCAtTryStmt;
  class ObjCAtThrowStmt;
  class ObjCAtSynchronizedStmt;

namespace CodeGen {
  class CodeGenModule;
  class CodeGenTypes;
  class CGDebugInfo;
  class CGFunctionInfo;
  class CGRecordLayout;

/// CodeGenFunction - This class organizes the per-function state that is used
/// while generating LLVM code.
class CodeGenFunction : public BlockFunction {
  CodeGenFunction(const CodeGenFunction&); // DO NOT IMPLEMENT
  void operator=(const CodeGenFunction&);  // DO NOT IMPLEMENT
public:
  CodeGenModule &CGM;  // Per-module state.
  const TargetInfo &Target;

  typedef std::pair<llvm::Value *, llvm::Value *> ComplexPairTy;
  CGBuilderTy Builder;

  /// CurFuncDecl - Holds the Decl for the current function or ObjC method.
  /// This excludes BlockDecls.
  const Decl *CurFuncDecl;
  /// CurCodeDecl - This is the inner-most code context, which includes blocks.
  const Decl *CurCodeDecl;
  const CGFunctionInfo *CurFnInfo;
  QualType FnRetTy;
  llvm::Function *CurFn;

  /// CurGD - The GlobalDecl for the current function being compiled.
  GlobalDecl CurGD;
  /// OuterTryBlock - This is the address of the outter most try block, 0
  /// otherwise.
  const Stmt *OuterTryBlock;

  /// ReturnBlock - Unified return block.