path: root/lib/CodeGen/CodeGenModule.h

//===--- CodeGenModule.h - Per-Module 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-translation-unit state used for llvm translation.
//
//===----------------------------------------------------------------------===//

#ifndef CLANG_CODEGEN_CODEGENMODULE_H
#define CLANG_CODEGEN_CODEGENMODULE_H

#include "CGVTables.h"
#include "CodeGenTypes.h"
#include "clang/AST/Attr.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/GlobalDecl.h"
#include "clang/AST/Mangle.h"
#include "clang/Basic/ABI.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/Module.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/ValueHandle.h"
#include "llvm/Transforms/Utils/BlackList.h"

namespace llvm {
  class Module;
  class Constant;
  class ConstantInt;
  class Function;
  class GlobalValue;
  class DataLayout;
  class FunctionType;
  class LLVMContext;
}

namespace clang {
  class TargetCodeGenInfo;
  class ASTContext;
  class AtomicType;
  class FunctionDecl;
  class IdentifierInfo;
  class ObjCMethodDecl;
  class ObjCImplementationDecl;
  class ObjCCategoryImplDecl;
  class ObjCProtocolDecl;
  class ObjCEncodeExpr;
  class BlockExpr;
  class CharUnits;
  class Decl;
  class Expr;
  class Stmt;
  class InitListExpr;
  class StringLiteral;
  class NamedDecl;
  class ValueDecl;
  class VarDecl;
  class LangOptions;
  class CodeGenOptions;
  class TargetOptions;
  class DiagnosticsEngine;
  class AnnotateAttr;
  class CXXDestructorDecl;
  class MangleBuffer;
  class Module;

namespace CodeGen {

  class CallArgList;
  class CodeGenFunction;
  class CodeGenTBAA;
  class CGCXXABI;
  class CGDebugInfo;
  class CGObjCRuntime;
  class CGOpenCLRuntime;
  class CGCUDARuntime;
  class BlockFieldFlags;
  class FunctionArgList;
  
  struct OrderGlobalInits {
    unsigned int priority;
    unsigned int lex_order;
    OrderGlobalInits(unsigned int p, unsigned int l) 
      : priority(p), lex_order(l) {}
    
    bool operator==(const OrderGlobalInits &RHS) const {
      return priority == RHS.priority &&
             lex_order == RHS.lex_order;
    }
    
    bool operator<(const OrderGlobalInits &RHS) const {
      if (priority < RHS.priority)
        return true;
      
      return priority == RHS.priority && lex_order < RHS.lex_order;
    }
  };

  struct CodeGenTypeCache {
    /// void
    llvm::Type *VoidTy;

    /// i8, i16, i32, and i64
    llvm::IntegerType *Int8Ty, *Int16Ty, *Int32Ty, *Int64Ty;
    /// float, double
    llvm::Type *FloatTy, *DoubleTy;

    /// int
    llvm::IntegerType *IntTy;

    /// intptr_t, size_t, and ptrdiff_t, which we assume are the same size.
    union {
      llvm::IntegerType *IntPtrTy;
      llvm::IntegerType *SizeTy;
      llvm::IntegerType *PtrDiffTy;
    };

    /// void* in address space 0
    union {
      llvm::PointerType *VoidPtrTy;
      llvm::PointerType *Int8PtrTy;
    };

    /// void** in address space 0
    union {
      llvm::PointerType *VoidPtrPtrTy;
      llvm::PointerType *Int8PtrPtrTy;
    };

    /// The width of a pointer into the generic address space.
    unsigned char PointerWidthInBits;

    /// The size and alignment of a pointer into the generic address
    /// space.
    union {
      unsigned char PointerAlignInBytes;
      unsigned char PointerSizeInBytes;
      unsigned char SizeSizeInBytes;     // sizeof(size_t)
    };

    llvm::CallingConv::ID RuntimeCC;
    llvm::CallingConv::ID getRuntimeCC() const {
      return RuntimeCC;
    }
  };

struct RREntrypoints {
  RREntrypoints() { memset(this, 0, sizeof(*this)); }
  /// void