xref: /llvm-project/clang/lib/CodeGen/CodeGenABITypes.cpp (revision 1b7dd8d7e375bf9389d1dda3deac131e01b74606)
1 //==--- CodeGenABITypes.cpp - Convert Clang types to LLVM types for ABI ----==//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // CodeGenABITypes is a simple interface for getting LLVM types for
11 // the parameters and the return value of a function given the Clang
12 // types.
13 //
14 // The class is implemented as a public wrapper around the private
15 // CodeGenTypes class in lib/CodeGen.
16 //
17 //===----------------------------------------------------------------------===//
18 
19 #include "clang/CodeGen/CodeGenABITypes.h"
20 #include "CodeGenModule.h"
21 #include "clang/CodeGen/CGFunctionInfo.h"
22 #include "clang/Frontend/CodeGenOptions.h"
23 #include "clang/Lex/HeaderSearchOptions.h"
24 #include "clang/Lex/PreprocessorOptions.h"
25 
26 using namespace clang;
27 using namespace CodeGen;
28 
29 CodeGenABITypes::CodeGenABITypes(ASTContext &C, llvm::Module &M,
30                                  CoverageSourceInfo *CoverageInfo)
31     : CGO(new CodeGenOptions), HSO(new HeaderSearchOptions),
32       PPO(new PreprocessorOptions),
33       CGM(new CodeGen::CodeGenModule(C, *HSO, *PPO, *CGO, M, C.getDiagnostics(),
34                                      CoverageInfo)) {}
35 
36 // Explicitly out-of-line because ~CodeGenModule() is private but
37 // CodeGenABITypes.h is part of clang's API.
38 CodeGenABITypes::~CodeGenABITypes() = default;
39 
40 const CGFunctionInfo &
41 CodeGenABITypes::arrangeObjCMessageSendSignature(const ObjCMethodDecl *MD,
42                                                  QualType receiverType) {
43   return CGM->getTypes().arrangeObjCMessageSendSignature(MD, receiverType);
44 }
45 
46 const CGFunctionInfo &
47 CodeGenABITypes::arrangeFreeFunctionType(CanQual<FunctionProtoType> Ty) {
48   return CGM->getTypes().arrangeFreeFunctionType(Ty);
49 }
50 
51 const CGFunctionInfo &
52 CodeGenABITypes::arrangeFreeFunctionType(CanQual<FunctionNoProtoType> Ty) {
53   return CGM->getTypes().arrangeFreeFunctionType(Ty);
54 }
55 
56 const CGFunctionInfo &
57 CodeGenABITypes::arrangeCXXMethodType(const CXXRecordDecl *RD,
58                                       const FunctionProtoType *FTP) {
59   return CGM->getTypes().arrangeCXXMethodType(RD, FTP);
60 }
61 
62 const CGFunctionInfo &CodeGenABITypes::arrangeFreeFunctionCall(
63     CanQualType returnType, ArrayRef<CanQualType> argTypes,
64     FunctionType::ExtInfo info, RequiredArgs args) {
65   return CGM->getTypes().arrangeLLVMFunctionInfo(
66       returnType, /*IsInstanceMethod=*/false, /*IsChainCall=*/false, argTypes,
67       info, args);
68 }
69