1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
| //==---- CodeGenABITypes.h - Convert Clang types to LLVM types for ABI -----==//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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 actual ABI locations (e.g. registers, stack locations, etc.) that
// these parameters are stored in.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_CODEGEN_CODEGENABITYPES_H
#define LLVM_CLANG_CODEGEN_CODEGENABITYPES_H
#include "clang/AST/CanonicalType.h"
#include "clang/AST/Type.h"
#include "clang/CodeGen/CGFunctionInfo.h"
namespace llvm {
class DataLayout;
class Module;
class Function;
class FunctionType;
class Type;
}
namespace clang {
class ASTContext;
class CXXRecordDecl;
class CXXMethodDecl;
class CodeGenOptions;
class CoverageSourceInfo;
class DiagnosticsEngine;
class HeaderSearchOptions;
class ObjCMethodDecl;
class PreprocessorOptions;
namespace CodeGen {
class CGFunctionInfo;
class CodeGenModule;
const CGFunctionInfo &arrangeObjCMessageSendSignature(CodeGenModule &CGM,
const ObjCMethodDecl *MD,
QualType receiverType);
const CGFunctionInfo &arrangeFreeFunctionType(CodeGenModule &CGM,
CanQual<FunctionProtoType> Ty);
const CGFunctionInfo &arrangeFreeFunctionType(CodeGenModule &CGM,
CanQual<FunctionNoProtoType> Ty);
const CGFunctionInfo &arrangeCXXMethodType(CodeGenModule &CGM,
const CXXRecordDecl *RD,
const FunctionProtoType *FTP,
const CXXMethodDecl *MD);
const CGFunctionInfo &arrangeFreeFunctionCall(CodeGenModule &CGM,
CanQualType returnType,
ArrayRef<CanQualType> argTypes,
FunctionType::ExtInfo info,
RequiredArgs args);
/// Returns null if the function type is incomplete and can't be lowered.
llvm::FunctionType *convertFreeFunctionType(CodeGenModule &CGM,
const FunctionDecl *FD);
llvm::Type *convertTypeForMemory(CodeGenModule &CGM, QualType T);
/// Given a non-bitfield struct field, return its index within the elements of
/// the struct's converted type. The returned index refers to a field number in
/// the complete object type which is returned by convertTypeForMemory. FD must
/// be a field in RD directly (i.e. not an inherited field).
unsigned getLLVMFieldNumber(CodeGenModule &CGM,
const RecordDecl *RD, const FieldDecl *FD);
/// Returns the default constructor for a C struct with non-trivially copyable
/// fields, generating it if necessary. The returned function uses the `cdecl`
/// calling convention, returns void, and takes a single argument that is a
/// pointer to the address of the struct.
llvm::Function *getNonTrivialCStructDefaultConstructor(CodeGenModule &GCM,
CharUnits DstAlignment,
bool IsVolatile,
QualType QT);
/// Returns the copy constructor for a C struct with non-trivially copyable
/// fields, generating it if necessary. The returned function uses the `cdecl`
/// calling convention, returns void, and takes two arguments: pointers to the
/// addresses of the destination and source structs, respectively.
llvm::Function *getNonTrivialCStructCopyConstructor(CodeGenModule &CGM,
CharUnits DstAlignment,
CharUnits SrcAlignment,
bool IsVolatile,
QualType QT);
/// Returns the move constructor for a C struct with non-trivially copyable
/// fields, generating it if necessary. The returned function uses the `cdecl`
/// calling convention, returns void, and takes two arguments: pointers to the
/// addresses of the destination and source structs, respectively.
llvm::Function *getNonTrivialCStructMoveConstructor(CodeGenModule &CGM,
CharUnits DstAlignment,
CharUnits SrcAlignment,
bool IsVolatile,
QualType QT);
/// Returns the copy assignment operator for a C struct with non-trivially
/// copyable fields, generating it if necessary. The returned function uses the
/// `cdecl` calling convention, returns void, and takes two arguments: pointers
/// to the addresses of the destination and source structs, respectively.
llvm::Function *getNonTrivialCStructCopyAssignmentOperator(
CodeGenModule &CGM, CharUnits DstAlignment, CharUnits SrcAlignment,
bool IsVolatile, QualType QT);
/// Return the move assignment operator for a C struct with non-trivially
/// copyable fields, generating it if necessary. The returned function uses the
/// `cdecl` calling convention, returns void, and takes two arguments: pointers
/// to the addresses of the destination and source structs, respectively.
llvm::Function *getNonTrivialCStructMoveAssignmentOperator(
CodeGenModule &CGM, CharUnits DstAlignment, CharUnits SrcAlignment,
bool IsVolatile, QualType QT);
/// Returns the destructor for a C struct with non-trivially copyable fields,
/// generating it if necessary. The returned function uses the `cdecl` calling
/// convention, returns void, and takes a single argument that is a pointer to
/// the address of the struct.
llvm::Function *getNonTrivialCStructDestructor(CodeGenModule &CGM,
CharUnits DstAlignment,
bool IsVolatile, QualType QT);
} // end namespace CodeGen
} // end namespace clang
#endif
|