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//==---- CodeGenABITypes.h - Convert Clang types to LLVM types for ABI -----==//
// The LLVM Compiler Infrastructure
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// CodeGenABITypes is a simple interface for getting LLVM types for
// the parameters and the return value of a function given the Clang
// types.
// The class is implemented as a public wrapper around the private
// CodeGenTypes class in lib/CodeGen.
// It allows other clients, like LLDB, to determine the LLVM types that are
// actually used in function calls, which makes it possible to then determine
// the acutal ABI locations (e.g. registers, stack locations, etc.) that
// these parameters are stored in.
#include "clang/AST/CanonicalType.h"
#include "clang/AST/Type.h"
#include "clang/CodeGen/CGFunctionInfo.h"
namespace llvm {
class DataLayout;
class Module;
namespace clang {
class ASTContext;
class CXXRecordDecl;
class CodeGenOptions;
class CoverageSourceInfo;
class DiagnosticsEngine;
class HeaderSearchOptions;
class ObjCMethodDecl;
class PreprocessorOptions;
namespace CodeGen {
class CGFunctionInfo;
class CodeGenModule;
class CodeGenABITypes
CodeGenABITypes(ASTContext &C, llvm::Module &M,
CoverageSourceInfo *CoverageInfo = nullptr);
/// These methods all forward to methods in the private implementation class
/// CodeGenTypes.
const CGFunctionInfo &arrangeObjCMessageSendSignature(
const ObjCMethodDecl *MD,
QualType receiverType);
const CGFunctionInfo &arrangeFreeFunctionType(
CanQual<FunctionProtoType> Ty);
const CGFunctionInfo &arrangeFreeFunctionType(
CanQual<FunctionNoProtoType> Ty);
const CGFunctionInfo &arrangeCXXMethodType(const CXXRecordDecl *RD,
const FunctionProtoType *FTP);
const CGFunctionInfo &arrangeFreeFunctionCall(CanQualType returnType,
ArrayRef<CanQualType> argTypes,
FunctionType::ExtInfo info,
RequiredArgs args);
/// Default CodeGenOptions object used to initialize the
/// CodeGenModule and otherwise not used. More specifically, it is
/// not used in ABI type generation, so none of the options matter.
std::unique_ptr<CodeGenOptions> CGO;
std::unique_ptr<HeaderSearchOptions> HSO;
std::unique_ptr<PreprocessorOptions> PPO;
/// The CodeGenModule we use get to the CodeGenTypes object.
std::unique_ptr<CodeGen::CodeGenModule> CGM;
} // end namespace CodeGen
} // end namespace clang