1 //==---- CodeGenABITypes.h - Convert Clang types to LLVM types for ABI -----==//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // CodeGenABITypes is a simple interface for getting LLVM types for
11 // the parameters and the return value of a function given the Clang
14 // The class is implemented as a public wrapper around the private
15 // CodeGenTypes class in lib/CodeGen.
17 // It allows other clients, like LLDB, to determine the LLVM types that are
18 // actually used in function calls, which makes it possible to then determine
19 // the acutal ABI locations (e.g. registers, stack locations, etc.) that
20 // these parameters are stored in.
22 //===----------------------------------------------------------------------===//
24 #ifndef LLVM_CLANG_CODEGEN_CODEGENABITYPES_H
25 #define LLVM_CLANG_CODEGEN_CODEGENABITYPES_H
27 #include "clang/AST/CanonicalType.h"
28 #include "clang/AST/Type.h"
29 #include "clang/CodeGen/CGFunctionInfo.h"
40 class CoverageSourceInfo;
41 class DiagnosticsEngine;
42 class HeaderSearchOptions;
44 class PreprocessorOptions;
53 CodeGenABITypes(ASTContext &C, llvm::Module &M, const llvm::DataLayout &TD,
54 CoverageSourceInfo *CoverageInfo = nullptr);
57 /// These methods all forward to methods in the private implementation class
60 const CGFunctionInfo &arrangeObjCMessageSendSignature(
61 const ObjCMethodDecl *MD,
62 QualType receiverType);
63 const CGFunctionInfo &arrangeFreeFunctionType(
64 CanQual<FunctionProtoType> Ty);
65 const CGFunctionInfo &arrangeFreeFunctionType(
66 CanQual<FunctionNoProtoType> Ty);
67 const CGFunctionInfo &arrangeCXXMethodType(const CXXRecordDecl *RD,
68 const FunctionProtoType *FTP);
69 const CGFunctionInfo &arrangeFreeFunctionCall(CanQualType returnType,
70 ArrayRef<CanQualType> argTypes,
71 FunctionType::ExtInfo info,
75 /// Default CodeGenOptions object used to initialize the
76 /// CodeGenModule and otherwise not used. More specifically, it is
77 /// not used in ABI type generation, so none of the options matter.
79 HeaderSearchOptions *HSO;
80 PreprocessorOptions *PPO;
82 /// The CodeGenModule we use get to the CodeGenTypes object.
83 CodeGen::CodeGenModule *CGM;
86 } // end namespace CodeGen
87 } // end namespace clang