clang 10.0.0git

CGBlocks.h
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1 //===-- CGBlocks.h - state for LLVM CodeGen for blocks ----------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This is the internal state used for llvm translation for block literals.
10 //
11 //===----------------------------------------------------------------------===//
12
13 #ifndef LLVM_CLANG_LIB_CODEGEN_CGBLOCKS_H
14 #define LLVM_CLANG_LIB_CODEGEN_CGBLOCKS_H
15
16 #include "CGBuilder.h"
17 #include "CGCall.h"
18 #include "CGValue.h"
19 #include "CodeGenFunction.h"
20 #include "CodeGenTypes.h"
21 #include "clang/AST/CharUnits.h"
22 #include "clang/AST/Expr.h"
23 #include "clang/AST/ExprCXX.h"
24 #include "clang/AST/ExprObjC.h"
25 #include "clang/AST/Type.h"
26 #include "clang/Basic/TargetInfo.h"
27
28 namespace llvm {
29 class Constant;
30 class Function;
31 class GlobalValue;
32 class DataLayout;
33 class FunctionType;
34 class PointerType;
35 class Value;
36 class LLVMContext;
37 }
38
39 namespace clang {
40 namespace CodeGen {
41
42 class CGBlockInfo;
43
44 // Flags stored in __block variables.
45 enum BlockByrefFlags {
46 BLOCK_BYREF_HAS_COPY_DISPOSE = (1 << 25), // compiler
47 BLOCK_BYREF_LAYOUT_MASK = (0xF << 28), // compiler
48 BLOCK_BYREF_LAYOUT_EXTENDED = (1 << 28),
49 BLOCK_BYREF_LAYOUT_NON_OBJECT = (2 << 28),
50 BLOCK_BYREF_LAYOUT_STRONG = (3 << 28),
51 BLOCK_BYREF_LAYOUT_WEAK = (4 << 28),
52 BLOCK_BYREF_LAYOUT_UNRETAINED = (5 << 28)
53 };
54
55 enum BlockLiteralFlags {
56 BLOCK_IS_NOESCAPE = (1 << 23),
57 BLOCK_HAS_COPY_DISPOSE = (1 << 25),
58 BLOCK_HAS_CXX_OBJ = (1 << 26),
59 BLOCK_IS_GLOBAL = (1 << 28),
60 BLOCK_USE_STRET = (1 << 29),
61 BLOCK_HAS_SIGNATURE = (1 << 30),
62 BLOCK_HAS_EXTENDED_LAYOUT = (1u << 31)
63 };
64 class BlockFlags {
65 uint32_t flags;
66
67 public:
68 BlockFlags(uint32_t flags) : flags(flags) {}
69 BlockFlags() : flags(0) {}
70 BlockFlags(BlockLiteralFlags flag) : flags(flag) {}
71 BlockFlags(BlockByrefFlags flag) : flags(flag) {}
72
73 uint32_t getBitMask() const { return flags; }
74 bool empty() const { return flags == 0; }
75
76 friend BlockFlags operator|(BlockFlags l, BlockFlags r) {
77 return BlockFlags(l.flags | r.flags);
78 }
79 friend BlockFlags &operator|=(BlockFlags &l, BlockFlags r) {
80 l.flags |= r.flags;
81 return l;
82 }
83 friend bool operator&(BlockFlags l, BlockFlags r) {
84 return (l.flags & r.flags);
85 }
86 bool operator==(BlockFlags r) {
87 return (flags == r.flags);
88 }
89 };
90 inline BlockFlags operator|(BlockLiteralFlags l, BlockLiteralFlags r) {
91 return BlockFlags(l) | BlockFlags(r);
92 }
93
94 enum BlockFieldFlag_t {
95 BLOCK_FIELD_IS_OBJECT = 0x03, /* id, NSObject, __attribute__((NSObject)),
96 block, ... */
97 BLOCK_FIELD_IS_BLOCK = 0x07, /* a block variable */
98
99 BLOCK_FIELD_IS_BYREF = 0x08, /* the on stack structure holding the __block
100 variable */
101 BLOCK_FIELD_IS_WEAK = 0x10, /* declared __weak, only used in byref copy
102 helpers */
103 BLOCK_FIELD_IS_ARC = 0x40, /* field has ARC-specific semantics */
104 BLOCK_BYREF_CALLER = 128, /* called from __block (byref) copy/dispose
105 support routines */
106 BLOCK_BYREF_CURRENT_MAX = 256
107 };
108
109 class BlockFieldFlags {
110 uint32_t flags;
111
112 BlockFieldFlags(uint32_t flags) : flags(flags) {}
113 public:
114 BlockFieldFlags() : flags(0) {}
115 BlockFieldFlags(BlockFieldFlag_t flag) : flags(flag) {}
116
117 uint32_t getBitMask() const { return flags; }
118 bool empty() const { return flags == 0; }
119
120 /// Answers whether the flags indicate that this field is an object
121 /// or block pointer that requires _Block_object_assign/dispose.
122 bool isSpecialPointer() const { return flags & BLOCK_FIELD_IS_OBJECT; }
123
124 friend BlockFieldFlags operator|(BlockFieldFlags l, BlockFieldFlags r) {
125 return BlockFieldFlags(l.flags | r.flags);
126 }
127 friend BlockFieldFlags &operator|=(BlockFieldFlags &l, BlockFieldFlags r) {
128 l.flags |= r.flags;
129 return l;
130 }
131 friend bool operator&(BlockFieldFlags l, BlockFieldFlags r) {
132 return (l.flags & r.flags);
133 }
134 bool operator==(BlockFieldFlags Other) const {
135 return flags == Other.flags;
136 }
137 };
138 inline BlockFieldFlags operator|(BlockFieldFlag_t l, BlockFieldFlag_t r) {
139 return BlockFieldFlags(l) | BlockFieldFlags(r);
140 }
141
142 /// Information about the layout of a __block variable.
143 class BlockByrefInfo {
144 public:
145 llvm::StructType *Type;
146 unsigned FieldIndex;
147 CharUnits ByrefAlignment;
148 CharUnits FieldOffset;
149 };
150
151 /// CGBlockInfo - Information to generate a block literal.
152 class CGBlockInfo {
153 public:
154 /// Name - The name of the block, kindof.
155 StringRef Name;
156
157 /// The field index of 'this' within the block, if there is one.
158 unsigned CXXThisIndex;
159
160 class Capture {
161 uintptr_t Data;
162 EHScopeStack::stable_iterator Cleanup;
163 CharUnits::QuantityType Offset;
164
165 /// Type of the capture field. Normally, this is identical to the type of
166 /// the capture's VarDecl, but can be different if there is an enclosing
167 /// lambda.
168 QualType FieldType;
169
170 public:
171 bool isIndex() const { return (Data & 1) != 0; }
172 bool isConstant() const { return !isIndex(); }
173
174 unsigned getIndex() const {
175 assert(isIndex());
176 return Data >> 1;
177 }
178 CharUnits getOffset() const {
179 assert(isIndex());
180 return CharUnits::fromQuantity(Offset);
181 }
182 EHScopeStack::stable_iterator getCleanup() const {
183 assert(isIndex());
184 return Cleanup;
185 }
186 void setCleanup(EHScopeStack::stable_iterator cleanup) {
187 assert(isIndex());
188 Cleanup = cleanup;
189 }
190
191 llvm::Value *getConstant() const {
192 assert(isConstant());
193 return reinterpret_cast<llvm::Value*>(Data);
194 }
195
196 QualType fieldType() const {
197 return FieldType;
198 }
199
200 static Capture makeIndex(unsigned index, CharUnits offset,
201 QualType FieldType) {
202 Capture v;
203 v.Data = (index << 1) | 1;
204 v.Offset = offset.getQuantity();
205 v.FieldType = FieldType;
206 return v;
207 }
208
209 static Capture makeConstant(llvm::Value *value) {
210 Capture v;
211 v.Data = reinterpret_cast<uintptr_t>(value);
212 return v;
213 }
214 };
215
216 /// CanBeGlobal - True if the block can be global, i.e. it has
217 /// no non-constant captures.
218 bool CanBeGlobal : 1;
219
220 /// True if the block has captures that would necessitate custom copy or
221 /// dispose helper functions if the block were escaping.
222 bool NeedsCopyDispose : 1;
223
224 /// HasCXXObject - True if the block's custom copy/dispose functions
225 /// need to be run even in GC mode.
226 bool HasCXXObject : 1;
227
228 /// UsesStret : True if the block uses an stret return. Mutable
229 /// because it gets set later in the block-creation process.
230 mutable bool UsesStret : 1;
231
232 /// HasCapturedVariableLayout : True if block has captured variables
233 /// and their layout meta-data has been generated.
234 bool HasCapturedVariableLayout : 1;
235
236 /// Indicates whether an object of a non-external C++ class is captured. This
237 /// bit is used to determine the linkage of the block copy/destroy helper
238 /// functions.
239 bool CapturesNonExternalType : 1;
240
241 /// The mapping of allocated indexes within the block.
242 llvm::DenseMap<const VarDecl*, Capture> Captures;
243
244 Address LocalAddress;
245 llvm::StructType *StructureType;
246 const BlockDecl *Block;
247 const BlockExpr *BlockExpression;
248 CharUnits BlockSize;
249 CharUnits BlockAlign;
250 CharUnits CXXThisOffset;
251
252 // Offset of the gap caused by block header having a smaller
253 // alignment than the alignment of the block descriptor. This
254 // is the gap offset before the first capturued field.
255 CharUnits BlockHeaderForcedGapOffset;
256 // Gap size caused by aligning first field after block header.
257 // This could be zero if no forced alignment is required.
258 CharUnits BlockHeaderForcedGapSize;
259
260 /// An instruction which dominates the full-expression that the
261 /// block is inside.
262 llvm::Instruction *DominatingIP;
263
264 /// The next block in the block-info chain. Invalid if this block
265 /// info is not part of the CGF's block-info chain, which is true
266 /// if it corresponds to a global block or a block whose expression
267 /// has been encountered.
268 CGBlockInfo *NextBlockInfo;
269
270 const Capture &getCapture(const VarDecl *var) const {
271 return const_cast<CGBlockInfo*>(this)->getCapture(var);
272 }
273 Capture &getCapture(const VarDecl *var) {
274 llvm::DenseMap<const VarDecl*, Capture>::iterator
275 it = Captures.find(var);
276 assert(it != Captures.end() && "no entry for variable!");
277 return it->second;
278 }
279
280 const BlockDecl *getBlockDecl() const { return Block; }
281 const BlockExpr *getBlockExpr() const {
282 assert(BlockExpression);
283 assert(BlockExpression->getBlockDecl() == Block);
284 return BlockExpression;
285 }
286
287 CGBlockInfo(const BlockDecl *blockDecl, StringRef Name);
288
289 // Indicates whether the block needs a custom copy or dispose function.
290 bool needsCopyDisposeHelpers() const {
291 return NeedsCopyDispose && !Block->doesNotEscape();
292 }
293 };
294
295 } // end namespace CodeGen
296 } // end namespace clang
297
298 #endif
clang::BlockExpr::getBlockDecl
const BlockDecl * getBlockDecl() const
Definition: Expr.h:5593
clang::CodeGen::BlockByrefInfo
Information about the layout of a __block variable.
Definition: CGBlocks.h:143
clang::CodeGen::CGBlockInfo::getCapture
const Capture & getCapture(const VarDecl *var) const
Definition: CGBlocks.h:270
clang::CharUnits::QuantityType
int64_t QuantityType
Definition: CharUnits.h:40
clang::CodeGen::CGBlockInfo::BlockHeaderForcedGapOffset
CharUnits BlockHeaderForcedGapOffset
Definition: CGBlocks.h:255
clang::CodeGen::BLOCK_BYREF_HAS_COPY_DISPOSE
Definition: CGBlocks.h:46
clang::QualType
A (possibly-)qualified type.
Definition: Type.h:654
clang::CodeGen::CGBlockInfo::getCapture
Capture & getCapture(const VarDecl *var)
Definition: CGBlocks.h:273
CGCall.h
llvm
Specialize PointerLikeTypeTraits to allow LazyGenerationalUpdatePtr to be placed into a PointerUnion...
Definition: Dominators.h:30
clang::format::cleanup
tooling::Replacements cleanup(const FormatStyle &Style, StringRef Code, ArrayRef< tooling::Range > Ranges, StringRef FileName="<stdin>")
Clean up any erroneous/redundant code in the given Ranges in Code.
Definition: Format.cpp:2472
Type.h
C Language Family Type Representation.
clang::CodeGen::BlockFieldFlags::operator|
friend BlockFieldFlags operator|(BlockFieldFlags l, BlockFieldFlags r)
Definition: CGBlocks.h:124
clang::CodeGen::BLOCK_HAS_EXTENDED_LAYOUT
Definition: CGBlocks.h:62
clang::CodeGen::BlockFlags::operator==
bool operator==(BlockFlags r)
Definition: CGBlocks.h:86
clang::XRayInstrKind::Function
constexpr XRayInstrMask Function
Definition: XRayInstr.h:38
clang::CodeGen::CGBlockInfo::BlockAlign
CharUnits BlockAlign
Definition: CGBlocks.h:249
Value
Value
Definition: UninitializedValues.cpp:101
clang::CodeGen::BlockFlags::BlockFlags
BlockFlags(uint32_t flags)
Definition: CGBlocks.h:68
clang::VarDecl
Represents a variable declaration or definition.
Definition: Decl.h:820
clang::CodeGen::CGBlockInfo::Capture::getCleanup
EHScopeStack::stable_iterator getCleanup() const
Definition: CGBlocks.h:182
clang::CodeGen::CGBlockInfo::LocalAddress
Address LocalAddress
Definition: CGBlocks.h:244
ExprCXX.h
Defines the clang::Expr interface and subclasses for C++ expressions.
clang::CodeGen::BLOCK_IS_GLOBAL
Definition: CGBlocks.h:59
clang::CodeGen::CGBlockInfo::Block
const BlockDecl * Block
Definition: CGBlocks.h:246
clang::BlockDecl::doesNotEscape
bool doesNotEscape() const
Definition: Decl.h:4188
clang::CodeGen::CGBlockInfo::HasCapturedVariableLayout
bool HasCapturedVariableLayout
HasCapturedVariableLayout : True if block has captured variables and their layout meta-data has been ...
Definition: CGBlocks.h:234
clang::CodeGen::BlockFlags::BlockFlags
BlockFlags(BlockByrefFlags flag)
Definition: CGBlocks.h:71
CGValue.h
clang::CodeGen::BLOCK_BYREF_LAYOUT_UNRETAINED
Definition: CGBlocks.h:52
clang::CodeGen::BLOCK_HAS_COPY_DISPOSE
Definition: CGBlocks.h:57
clang::CodeGen::operator|
BlockFieldFlags operator|(BlockFieldFlag_t l, BlockFieldFlag_t r)
Definition: CGBlocks.h:138
clang::CodeGen::BlockFieldFlags::BlockFieldFlags
BlockFieldFlags()
Definition: CGBlocks.h:114
clang::CodeGen::CGBlockInfo::CXXThisOffset
CharUnits CXXThisOffset
Definition: CGBlocks.h:250
CharUnits.h
clang::CodeGen::BlockFlags::BlockFlags
BlockFlags()
Definition: CGBlocks.h:69
clang::CodeGen::CGBlockInfo::Capture::isConstant
bool isConstant() const
Definition: CGBlocks.h:172
clang::CodeGen::BlockFieldFlags::BlockFieldFlags
BlockFieldFlags(BlockFieldFlag_t flag)
Definition: CGBlocks.h:115
clang::CharUnits
CharUnits - This is an opaque type for sizes expressed in character units.
Definition: CharUnits.h:38
clang::CodeGen::CGBlockInfo::getBlockDecl
const BlockDecl * getBlockDecl() const
Definition: CGBlocks.h:280
clang::CodeGen::BlockByrefFlags
BlockByrefFlags
Definition: CGBlocks.h:45
clang::CodeGen::CGBlockInfo::HasCXXObject
bool HasCXXObject
HasCXXObject - True if the block&#39;s custom copy/dispose functions need to be run even in GC mode...
Definition: CGBlocks.h:226
clang::CodeGen::BlockFieldFlags::getBitMask
uint32_t getBitMask() const
Definition: CGBlocks.h:117
ExprObjC.h
clang::CodeGen::BLOCK_BYREF_LAYOUT_EXTENDED
Definition: CGBlocks.h:48
clang::CodeGen::CGBlockInfo::Capture::makeConstant
static Capture makeConstant(llvm::Value *value)
Definition: CGBlocks.h:209
clang::CodeGen::BlockFieldFlags::operator|=
friend BlockFieldFlags & operator|=(BlockFieldFlags &l, BlockFieldFlags r)
Definition: CGBlocks.h:127
clang::CodeGen::BLOCK_USE_STRET
Definition: CGBlocks.h:60
clang::CodeGen::BlockByrefInfo::FieldOffset
CharUnits FieldOffset
Definition: CGBlocks.h:148
clang::CodeGen::CGBlockInfo::Name
StringRef Name
Name - The name of the block, kindof.
Definition: CGBlocks.h:155
clang::CodeGen::CGBlockInfo::NeedsCopyDispose
bool NeedsCopyDispose
True if the block has captures that would necessitate custom copy or dispose helper functions if the ...
Definition: CGBlocks.h:222
clang::CodeGen::CGBlockInfo::BlockExpression
const BlockExpr * BlockExpression
Definition: CGBlocks.h:247
clang::CodeGen::BlockFlags::empty
bool empty() const
Definition: CGBlocks.h:74
clang::CodeGen::CGBlockInfo::Capture::getIndex
unsigned getIndex() const
Definition: CGBlocks.h:174
clang::CodeGen::BlockFlags::getBitMask
uint32_t getBitMask() const
Definition: CGBlocks.h:73
clang::CodeGen::CGBlockInfo
CGBlockInfo - Information to generate a block literal.
Definition: CGBlocks.h:152
clang::CodeGen::CGBlockInfo::Capture::fieldType
QualType fieldType() const
Definition: CGBlocks.h:196
clang::CodeGen::CGBlockInfo::CanBeGlobal
bool CanBeGlobal
CanBeGlobal - True if the block can be global, i.e.
Definition: CGBlocks.h:218
clang::CharUnits::getQuantity
QuantityType getQuantity() const
getQuantity - Get the raw integer representation of this quantity.
Definition: CharUnits.h:179
clang::CodeGen::BlockFieldFlags
Definition: CGBlocks.h:109
clang::CodeGen::BlockFlags::BlockFlags
BlockFlags(BlockLiteralFlags flag)
Definition: CGBlocks.h:70
clang::CodeGen::BLOCK_HAS_CXX_OBJ
Definition: CGBlocks.h:58
Offset
unsigned Offset
Definition: Format.cpp:1827
clang::CodeGen::CGBlockInfo::NextBlockInfo
CGBlockInfo * NextBlockInfo
The next block in the block-info chain.
Definition: CGBlocks.h:268
clang::operator &
DiagnosticLevelMask operator &(DiagnosticLevelMask LHS, DiagnosticLevelMask RHS)
Definition: DiagnosticOptions.h:53
clang::BlockDecl
Represents a block literal declaration, which is like an unnamed FunctionDecl.
Definition: Decl.h:4037
clang::CodeGen::BlockLiteralFlags
BlockLiteralFlags
Definition: CGBlocks.h:55
clang::CodeGen::CGBlockInfo::Capture::getOffset
CharUnits getOffset() const
Definition: CGBlocks.h:178
clang::CodeGen::BLOCK_BYREF_CALLER
Definition: CGBlocks.h:104
uintptr_t
__UINTPTR_TYPE__ uintptr_t
An unsigned integer type with the property that any valid pointer to void can be converted to this ty...
Definition: opencl-c-base.h:62
clang::BlockExpr
BlockExpr - Adaptor class for mixing a BlockDecl with expressions.
Definition: Expr.h:5579
clang::CodeGen::BLOCK_BYREF_LAYOUT_NON_OBJECT
Definition: CGBlocks.h:49
clang::CodeGen::BlockFlags::operator|
friend BlockFlags operator|(BlockFlags l, BlockFlags r)
Definition: CGBlocks.h:76
clang::CodeGen::BLOCK_BYREF_CURRENT_MAX
Definition: CGBlocks.h:106
clang::CodeGen::BLOCK_FIELD_IS_ARC
Definition: CGBlocks.h:103
clang::CodeGen::CGBlockInfo::needsCopyDisposeHelpers
bool needsCopyDisposeHelpers() const
Definition: CGBlocks.h:290
clang::CodeGen::CGBlockInfo::Capture::makeIndex
static Capture makeIndex(unsigned index, CharUnits offset, QualType FieldType)
Definition: CGBlocks.h:200
clang::CodeGen::BlockByrefInfo::FieldIndex
unsigned FieldIndex
Definition: CGBlocks.h:146
clang::CodeGen::BlockFlags
Definition: CGBlocks.h:64
v
do v
Definition: arm_acle.h:64
CodeGenFunction.h
clang::CodeGen::CGBlockInfo::UsesStret
bool UsesStret
UsesStret : True if the block uses an stret return.
Definition: CGBlocks.h:230
clang::CodeGen::BLOCK_FIELD_IS_WEAK
Definition: CGBlocks.h:101
clang::CodeGen::BLOCK_BYREF_LAYOUT_STRONG
Definition: CGBlocks.h:50
clang::CodeGen::EHScopeStack::stable_iterator
A saved depth on the scope stack.
Definition: EHScopeStack.h:106
clang::CodeGen::CGBlockInfo::StructureType
llvm::StructType * StructureType
Definition: CGBlocks.h:245
clang::CodeGen::BlockByrefInfo::ByrefAlignment
CharUnits ByrefAlignment
Definition: CGBlocks.h:147
clang::CodeGen::CGBlockInfo::CapturesNonExternalType
bool CapturesNonExternalType
Indicates whether an object of a non-external C++ class is captured.
Definition: CGBlocks.h:239
clang::CodeGen::BLOCK_FIELD_IS_OBJECT
Definition: CGBlocks.h:95
clang::CodeGen::CGBlockInfo::Captures
llvm::DenseMap< const VarDecl *, Capture > Captures
The mapping of allocated indexes within the block.
Definition: CGBlocks.h:242
clang::CodeGen::Address
An aligned address.
Definition: Address.h:24
clang::CodeGen::BLOCK_FIELD_IS_BLOCK
Definition: CGBlocks.h:97
clang::CodeGen::CGBlockInfo::Capture::getConstant
llvm::Value * getConstant() const
Definition: CGBlocks.h:191
clang::CodeGen::CGBlockInfo::getBlockExpr
const BlockExpr * getBlockExpr() const
Definition: CGBlocks.h:281
clang::CodeGen::CGBlockInfo::BlockSize
CharUnits BlockSize
Definition: CGBlocks.h:248
clang::CodeGen::CGBlockInfo::CXXThisIndex
unsigned CXXThisIndex
The field index of &#39;this&#39; within the block, if there is one.
Definition: CGBlocks.h:158
clang
Dataflow Directional Tag Classes.
Definition: CFGReachabilityAnalysis.h:21
clang::CodeGen::BlockFieldFlags::isSpecialPointer
bool isSpecialPointer() const
Answers whether the flags indicate that this field is an object or block pointer that requires _Block...
Definition: CGBlocks.h:122
clang::CodeGen::BlockFieldFlag_t
BlockFieldFlag_t
Definition: CGBlocks.h:94
clang::CodeGen::BLOCK_BYREF_LAYOUT_MASK
Definition: CGBlocks.h:47
CodeGenTypes.h
clang::CodeGen::BlockFlags::operator|=
friend BlockFlags & operator|=(BlockFlags &l, BlockFlags r)
Definition: CGBlocks.h:79
clang::CodeGen::BLOCK_FIELD_IS_BYREF
Definition: CGBlocks.h:99
clang::CodeGen::BlockByrefInfo::Type
llvm::StructType * Type
Definition: CGBlocks.h:145
clang::CodeGen::BLOCK_HAS_SIGNATURE
Definition: CGBlocks.h:61
clang::CodeGen::CGBlockInfo::Capture
Definition: CGBlocks.h:160
clang::CodeGen::CGBlockInfo::Capture::isIndex
bool isIndex() const
Definition: CGBlocks.h:171
clang::CodeGen::BLOCK_IS_NOESCAPE
Definition: CGBlocks.h:56
Expr.h
clang::CodeGen::CGBlockInfo::BlockHeaderForcedGapSize
CharUnits BlockHeaderForcedGapSize
Definition: CGBlocks.h:258
clang::CodeGen::BlockFieldFlags::operator==
bool operator==(BlockFieldFlags Other) const
Definition: CGBlocks.h:134
TargetInfo.h
Defines the clang::TargetInfo interface.
clang::CodeGen::BlockFieldFlags::empty
bool empty() const
Definition: CGBlocks.h:118
clang::CodeGen::BLOCK_BYREF_LAYOUT_WEAK
Definition: CGBlocks.h:51
CGBuilder.h
clang::ast_matchers::blockDecl
const internal::VariadicDynCastAllOfMatcher< Decl, BlockDecl > blockDecl
Matches block declarations.
Definition: ASTMatchersInternal.cpp:687
clang::CodeGen::CGBlockInfo::DominatingIP
llvm::Instruction * DominatingIP
An instruction which dominates the full-expression that the block is inside.
Definition: CGBlocks.h:262
clang::CodeGen::CGBlockInfo::Capture::setCleanup
void setCleanup(EHScopeStack::stable_iterator cleanup)
Definition: CGBlocks.h:186