Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 1 | //===--- CodeGenModule.h - Per-Module state for LLVM CodeGen ----*- C++ -*-===// |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Chris Lattner | 0bc735f | 2007-12-29 19:59:25 +0000 | [diff] [blame] | 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 10 | // This is the internal per-translation-unit state used for llvm translation. |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
Chris Lattner | ef52a2f | 2008-02-29 17:10:38 +0000 | [diff] [blame] | 14 | #ifndef CLANG_CODEGEN_CODEGENMODULE_H |
| 15 | #define CLANG_CODEGEN_CODEGENMODULE_H |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 16 | |
Peter Collingbourne | 1411047 | 2011-01-13 18:57:25 +0000 | [diff] [blame] | 17 | #include "clang/Basic/ABI.h" |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 18 | #include "clang/Basic/LangOptions.h" |
Dan Gohman | 4f8d123 | 2008-05-22 00:50:06 +0000 | [diff] [blame] | 19 | #include "clang/AST/Attr.h" |
Anders Carlsson | 2a131fb | 2009-05-05 04:44:02 +0000 | [diff] [blame] | 20 | #include "clang/AST/DeclCXX.h" |
Anders Carlsson | 0ff8baf | 2009-09-11 00:07:24 +0000 | [diff] [blame] | 21 | #include "clang/AST/DeclObjC.h" |
Peter Collingbourne | fd05ca0 | 2011-06-14 04:02:39 +0000 | [diff] [blame] | 22 | #include "clang/AST/GlobalDecl.h" |
Peter Collingbourne | 1411047 | 2011-01-13 18:57:25 +0000 | [diff] [blame] | 23 | #include "clang/AST/Mangle.h" |
Anders Carlsson | 461e326 | 2010-04-08 16:30:25 +0000 | [diff] [blame] | 24 | #include "CGVTables.h" |
Chris Lattner | bd36064 | 2009-03-26 05:00:52 +0000 | [diff] [blame] | 25 | #include "CodeGenTypes.h" |
Owen Anderson | 6924382 | 2009-07-13 04:10:07 +0000 | [diff] [blame] | 26 | #include "llvm/Module.h" |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 27 | #include "llvm/ADT/DenseMap.h" |
Anders Carlsson | c9e2091 | 2007-08-21 00:21:21 +0000 | [diff] [blame] | 28 | #include "llvm/ADT/StringMap.h" |
Rafael Espindola | 6a83670 | 2010-03-04 18:17:24 +0000 | [diff] [blame] | 29 | #include "llvm/ADT/SmallPtrSet.h" |
Chris Lattner | 35f38a2 | 2009-03-31 22:37:52 +0000 | [diff] [blame] | 30 | #include "llvm/Support/ValueHandle.h" |
Anders Carlsson | b723f75 | 2009-01-04 02:08:04 +0000 | [diff] [blame] | 31 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 32 | namespace llvm { |
| 33 | class Module; |
| 34 | class Constant; |
John McCall | bc8d40d | 2011-06-24 21:55:10 +0000 | [diff] [blame] | 35 | class ConstantInt; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 36 | class Function; |
Nate Begeman | 8bd4afe | 2008-04-19 04:17:09 +0000 | [diff] [blame] | 37 | class GlobalValue; |
Devang Patel | 7a4718e | 2007-10-31 20:01:01 +0000 | [diff] [blame] | 38 | class TargetData; |
Eli Friedman | ff4a2d9 | 2008-06-01 15:54:49 +0000 | [diff] [blame] | 39 | class FunctionType; |
Benjamin Kramer | f21efe9 | 2009-08-11 17:46:57 +0000 | [diff] [blame] | 40 | class LLVMContext; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 41 | } |
| 42 | |
| 43 | namespace clang { |
Anton Korobeynikov | 82d0a41 | 2010-01-10 12:58:08 +0000 | [diff] [blame] | 44 | class TargetCodeGenInfo; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 45 | class ASTContext; |
| 46 | class FunctionDecl; |
Daniel Dunbar | 90db882 | 2008-08-25 06:18:57 +0000 | [diff] [blame] | 47 | class IdentifierInfo; |
Chris Lattner | 391d77a | 2008-03-30 23:03:07 +0000 | [diff] [blame] | 48 | class ObjCMethodDecl; |
Anton Korobeynikov | 20ff310 | 2008-06-01 14:13:53 +0000 | [diff] [blame] | 49 | class ObjCImplementationDecl; |
| 50 | class ObjCCategoryImplDecl; |
| 51 | class ObjCProtocolDecl; |
Chris Lattner | eaf2bb8 | 2009-02-24 22:18:39 +0000 | [diff] [blame] | 52 | class ObjCEncodeExpr; |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 53 | class BlockExpr; |
Ken Dyck | 687cc4a | 2010-01-26 13:48:07 +0000 | [diff] [blame] | 54 | class CharUnits; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 55 | class Decl; |
Oliver Hunt | 2824723 | 2007-12-02 00:11:25 +0000 | [diff] [blame] | 56 | class Expr; |
Chris Lattner | 2c8569d | 2007-12-02 07:19:18 +0000 | [diff] [blame] | 57 | class Stmt; |
Daniel Dunbar | 1e04976 | 2008-08-10 20:25:57 +0000 | [diff] [blame] | 58 | class StringLiteral; |
Nate Begeman | 1a1d92a | 2008-04-20 20:38:08 +0000 | [diff] [blame] | 59 | class NamedDecl; |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 60 | class ValueDecl; |
Chris Lattner | 2b9d2ca | 2007-12-18 08:16:44 +0000 | [diff] [blame] | 61 | class VarDecl; |
Sebastian Redl | 43af76e | 2009-03-07 12:16:37 +0000 | [diff] [blame] | 62 | class LangOptions; |
Chandler Carruth | 2811ccf | 2009-11-12 17:24:48 +0000 | [diff] [blame] | 63 | class CodeGenOptions; |
David Blaikie | d6471f7 | 2011-09-25 23:23:43 +0000 | [diff] [blame] | 64 | class DiagnosticsEngine; |
Nate Begeman | 8bd4afe | 2008-04-19 04:17:09 +0000 | [diff] [blame] | 65 | class AnnotateAttr; |
Anders Carlsson | 27ae536 | 2009-04-17 01:58:57 +0000 | [diff] [blame] | 66 | class CXXDestructorDecl; |
Peter Collingbourne | 1411047 | 2011-01-13 18:57:25 +0000 | [diff] [blame] | 67 | class MangleBuffer; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 68 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 69 | namespace CodeGen { |
| 70 | |
John McCall | d26bc76 | 2011-03-09 04:27:21 +0000 | [diff] [blame] | 71 | class CallArgList; |
Lauro Ramos Venancio | 8137335 | 2008-02-26 21:41:45 +0000 | [diff] [blame] | 72 | class CodeGenFunction; |
Dan Gohman | 3d5aff5 | 2010-10-14 23:06:10 +0000 | [diff] [blame] | 73 | class CodeGenTBAA; |
John McCall | 4c40d98 | 2010-08-31 07:33:07 +0000 | [diff] [blame] | 74 | class CGCXXABI; |
Sanjiv Gupta | e8b9f5b | 2008-05-08 08:54:20 +0000 | [diff] [blame] | 75 | class CGDebugInfo; |
Daniel Dunbar | af2f62c | 2008-08-13 00:59:25 +0000 | [diff] [blame] | 76 | class CGObjCRuntime; |
Peter Collingbourne | 8c25fc5 | 2011-09-19 21:14:35 +0000 | [diff] [blame] | 77 | class CGOpenCLRuntime; |
Peter Collingbourne | 6c0aa5f | 2011-10-06 18:29:37 +0000 | [diff] [blame] | 78 | class CGCUDARuntime; |
John McCall | d16c2cf | 2011-02-08 08:22:06 +0000 | [diff] [blame] | 79 | class BlockFieldFlags; |
John McCall | d26bc76 | 2011-03-09 04:27:21 +0000 | [diff] [blame] | 80 | class FunctionArgList; |
Anders Carlsson | 4a6835e | 2009-09-10 23:38:47 +0000 | [diff] [blame] | 81 | |
Chris Lattner | ec2830d | 2010-06-27 06:32:58 +0000 | [diff] [blame] | 82 | struct OrderGlobalInits { |
Fariborz Jahanian | e0b691a | 2010-06-21 21:27:42 +0000 | [diff] [blame] | 83 | unsigned int priority; |
| 84 | unsigned int lex_order; |
| 85 | OrderGlobalInits(unsigned int p, unsigned int l) |
Chris Lattner | ec2830d | 2010-06-27 06:32:58 +0000 | [diff] [blame] | 86 | : priority(p), lex_order(l) {} |
| 87 | |
| 88 | bool operator==(const OrderGlobalInits &RHS) const { |
| 89 | return priority == RHS.priority && |
| 90 | lex_order == RHS.lex_order; |
Fariborz Jahanian | f489688 | 2010-06-22 00:23:08 +0000 | [diff] [blame] | 91 | } |
| 92 | |
Chris Lattner | ec2830d | 2010-06-27 06:32:58 +0000 | [diff] [blame] | 93 | bool operator<(const OrderGlobalInits &RHS) const { |
| 94 | if (priority < RHS.priority) |
Fariborz Jahanian | f489688 | 2010-06-22 00:23:08 +0000 | [diff] [blame] | 95 | return true; |
| 96 | |
Chris Lattner | ec2830d | 2010-06-27 06:32:58 +0000 | [diff] [blame] | 97 | return priority == RHS.priority && lex_order < RHS.lex_order; |
Fariborz Jahanian | f489688 | 2010-06-22 00:23:08 +0000 | [diff] [blame] | 98 | } |
Chris Lattner | ec2830d | 2010-06-27 06:32:58 +0000 | [diff] [blame] | 99 | }; |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 100 | |
| 101 | struct CodeGenTypeCache { |
John McCall | 0774cb8 | 2011-05-15 01:53:33 +0000 | [diff] [blame] | 102 | /// void |
Chris Lattner | 9cbe4f0 | 2011-07-09 17:41:47 +0000 | [diff] [blame] | 103 | llvm::Type *VoidTy; |
John McCall | 0774cb8 | 2011-05-15 01:53:33 +0000 | [diff] [blame] | 104 | |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 105 | /// i8, i32, and i64 |
Chris Lattner | 9cbe4f0 | 2011-07-09 17:41:47 +0000 | [diff] [blame] | 106 | llvm::IntegerType *Int8Ty, *Int32Ty, *Int64Ty; |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 107 | |
| 108 | /// int |
Chris Lattner | 9cbe4f0 | 2011-07-09 17:41:47 +0000 | [diff] [blame] | 109 | llvm::IntegerType *IntTy; |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 110 | |
John McCall | 0774cb8 | 2011-05-15 01:53:33 +0000 | [diff] [blame] | 111 | /// intptr_t, size_t, and ptrdiff_t, which we assume are the same size. |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 112 | union { |
Chris Lattner | 9cbe4f0 | 2011-07-09 17:41:47 +0000 | [diff] [blame] | 113 | llvm::IntegerType *IntPtrTy; |
| 114 | llvm::IntegerType *SizeTy; |
| 115 | llvm::IntegerType *PtrDiffTy; |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 116 | }; |
| 117 | |
| 118 | /// void* in address space 0 |
| 119 | union { |
Chris Lattner | 9cbe4f0 | 2011-07-09 17:41:47 +0000 | [diff] [blame] | 120 | llvm::PointerType *VoidPtrTy; |
| 121 | llvm::PointerType *Int8PtrTy; |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 122 | }; |
| 123 | |
| 124 | /// void** in address space 0 |
| 125 | union { |
Chris Lattner | 9cbe4f0 | 2011-07-09 17:41:47 +0000 | [diff] [blame] | 126 | llvm::PointerType *VoidPtrPtrTy; |
| 127 | llvm::PointerType *Int8PtrPtrTy; |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 128 | }; |
| 129 | |
John McCall | 3469585 | 2011-02-22 06:44:22 +0000 | [diff] [blame] | 130 | /// The width of a pointer into the generic address space. |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 131 | unsigned char PointerWidthInBits; |
John McCall | 3469585 | 2011-02-22 06:44:22 +0000 | [diff] [blame] | 132 | |
John McCall | 71c758d | 2011-09-10 09:17:20 +0000 | [diff] [blame] | 133 | /// The size and alignment of a pointer into the generic address |
| 134 | /// space. |
| 135 | union { |
| 136 | unsigned char PointerAlignInBytes; |
| 137 | unsigned char PointerSizeInBytes; |
| 138 | }; |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 139 | }; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 140 | |
| 141 | struct RREntrypoints { |
| 142 | RREntrypoints() { memset(this, 0, sizeof(*this)); } |
| 143 | /// void objc_autoreleasePoolPop(void*); |
| 144 | llvm::Constant *objc_autoreleasePoolPop; |
| 145 | |
| 146 | /// void *objc_autoreleasePoolPush(void); |
| 147 | llvm::Constant *objc_autoreleasePoolPush; |
| 148 | }; |
| 149 | |
| 150 | struct ARCEntrypoints { |
| 151 | ARCEntrypoints() { memset(this, 0, sizeof(*this)); } |
| 152 | |
| 153 | /// id objc_autorelease(id); |
| 154 | llvm::Constant *objc_autorelease; |
| 155 | |
| 156 | /// id objc_autoreleaseReturnValue(id); |
| 157 | llvm::Constant *objc_autoreleaseReturnValue; |
| 158 | |
| 159 | /// void objc_copyWeak(id *dest, id *src); |
| 160 | llvm::Constant *objc_copyWeak; |
| 161 | |
| 162 | /// void objc_destroyWeak(id*); |
| 163 | llvm::Constant *objc_destroyWeak; |
| 164 | |
| 165 | /// id objc_initWeak(id*, id); |
| 166 | llvm::Constant *objc_initWeak; |
| 167 | |
| 168 | /// id objc_loadWeak(id*); |
| 169 | llvm::Constant *objc_loadWeak; |
| 170 | |
| 171 | /// id objc_loadWeakRetained(id*); |
| 172 | llvm::Constant *objc_loadWeakRetained; |
| 173 | |
| 174 | /// void objc_moveWeak(id *dest, id *src); |
| 175 | llvm::Constant *objc_moveWeak; |
| 176 | |
| 177 | /// id objc_retain(id); |
| 178 | llvm::Constant *objc_retain; |
| 179 | |
| 180 | /// id objc_retainAutorelease(id); |
| 181 | llvm::Constant *objc_retainAutorelease; |
| 182 | |
| 183 | /// id objc_retainAutoreleaseReturnValue(id); |
| 184 | llvm::Constant *objc_retainAutoreleaseReturnValue; |
| 185 | |
| 186 | /// id objc_retainAutoreleasedReturnValue(id); |
| 187 | llvm::Constant *objc_retainAutoreleasedReturnValue; |
| 188 | |
| 189 | /// id objc_retainBlock(id); |
| 190 | llvm::Constant *objc_retainBlock; |
| 191 | |
| 192 | /// void objc_release(id); |
| 193 | llvm::Constant *objc_release; |
| 194 | |
| 195 | /// id objc_storeStrong(id*, id); |
| 196 | llvm::Constant *objc_storeStrong; |
| 197 | |
| 198 | /// id objc_storeWeak(id*, id); |
| 199 | llvm::Constant *objc_storeWeak; |
| 200 | |
| 201 | /// A void(void) inline asm to use to mark that the return value of |
| 202 | /// a call will be immediately retain. |
| 203 | llvm::InlineAsm *retainAutoreleasedReturnValueMarker; |
| 204 | }; |
Fariborz Jahanian | e0b691a | 2010-06-21 21:27:42 +0000 | [diff] [blame] | 205 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 206 | /// CodeGenModule - This class organizes the cross-function state that is used |
| 207 | /// while generating LLVM code. |
John McCall | 5936e33 | 2011-02-15 09:22:45 +0000 | [diff] [blame] | 208 | class CodeGenModule : public CodeGenTypeCache { |
Anders Carlsson | 8a219ce | 2009-02-24 04:21:31 +0000 | [diff] [blame] | 209 | CodeGenModule(const CodeGenModule&); // DO NOT IMPLEMENT |
| 210 | void operator=(const CodeGenModule&); // DO NOT IMPLEMENT |
| 211 | |
Chris Lattner | ca0017a | 2009-09-12 22:45:21 +0000 | [diff] [blame] | 212 | typedef std::vector<std::pair<llvm::Constant*, int> > CtorList; |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 213 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 214 | ASTContext &Context; |
Chris Lattner | 45e8cbd | 2007-11-28 05:34:05 +0000 | [diff] [blame] | 215 | const LangOptions &Features; |
Chandler Carruth | 2811ccf | 2009-11-12 17:24:48 +0000 | [diff] [blame] | 216 | const CodeGenOptions &CodeGenOpts; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 217 | llvm::Module &TheModule; |
Devang Patel | 7a4718e | 2007-10-31 20:01:01 +0000 | [diff] [blame] | 218 | const llvm::TargetData &TheTargetData; |
Anton Korobeynikov | 82d0a41 | 2010-01-10 12:58:08 +0000 | [diff] [blame] | 219 | mutable const TargetCodeGenInfo *TheTargetCodeGenInfo; |
David Blaikie | d6471f7 | 2011-09-25 23:23:43 +0000 | [diff] [blame] | 220 | DiagnosticsEngine &Diags; |
John McCall | f16aa10 | 2010-08-22 21:01:12 +0000 | [diff] [blame] | 221 | CGCXXABI &ABI; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 222 | CodeGenTypes Types; |
Dan Gohman | 3d5aff5 | 2010-10-14 23:06:10 +0000 | [diff] [blame] | 223 | CodeGenTBAA *TBAA; |
Anders Carlsson | b540491 | 2009-10-07 01:06:45 +0000 | [diff] [blame] | 224 | |
Anders Carlsson | af44035 | 2010-03-23 04:11:45 +0000 | [diff] [blame] | 225 | /// VTables - Holds information about C++ vtables. |
| 226 | CodeGenVTables VTables; |
Douglas Gregor | e17ad2f | 2010-04-08 16:07:47 +0000 | [diff] [blame] | 227 | friend class CodeGenVTables; |
| 228 | |
Peter Collingbourne | e926523 | 2011-07-27 20:29:46 +0000 | [diff] [blame] | 229 | CGObjCRuntime* ObjCRuntime; |
Peter Collingbourne | 8c25fc5 | 2011-09-19 21:14:35 +0000 | [diff] [blame] | 230 | CGOpenCLRuntime* OpenCLRuntime; |
Peter Collingbourne | 6c0aa5f | 2011-10-06 18:29:37 +0000 | [diff] [blame] | 231 | CGCUDARuntime* CUDARuntime; |
Ted Kremenek | 815c78f | 2008-08-05 18:50:11 +0000 | [diff] [blame] | 232 | CGDebugInfo* DebugInfo; |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 233 | ARCEntrypoints *ARCData; |
| 234 | RREntrypoints *RRData; |
Daniel Dunbar | 9986eab | 2008-07-30 16:32:24 +0000 | [diff] [blame] | 235 | |
Rafael Espindola | 6a83670 | 2010-03-04 18:17:24 +0000 | [diff] [blame] | 236 | // WeakRefReferences - A set of references that have only been seen via |
| 237 | // a weakref so far. This is used to remove the weak of the reference if we ever |
| 238 | // see a direct reference or a definition. |
| 239 | llvm::SmallPtrSet<llvm::GlobalValue*, 10> WeakRefReferences; |
| 240 | |
Chris Lattner | 67b0052 | 2009-03-21 09:44:56 +0000 | [diff] [blame] | 241 | /// DeferredDecls - This contains all the decls which have definitions but |
| 242 | /// which are deferred for emission and therefore should only be output if |
| 243 | /// they are actually used. If a decl is in this, then it is known to have |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 244 | /// not been referenced yet. |
| 245 | llvm::StringMap<GlobalDecl> DeferredDecls; |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 246 | |
Chris Lattner | 67b0052 | 2009-03-21 09:44:56 +0000 | [diff] [blame] | 247 | /// DeferredDeclsToEmit - This is a list of deferred decls which we have seen |
| 248 | /// that *are* actually referenced. These get code generated when the module |
| 249 | /// is done. |
Anders Carlsson | 2a131fb | 2009-05-05 04:44:02 +0000 | [diff] [blame] | 250 | std::vector<GlobalDecl> DeferredDeclsToEmit; |
Daniel Dunbar | 03f5ad9 | 2009-04-15 22:08:45 +0000 | [diff] [blame] | 251 | |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 252 | /// LLVMUsed - List of global values which are required to be |
| 253 | /// present in the object file; bitcast to i8*. This is used for |
| 254 | /// forcing visibility of symbols which may otherwise be optimized |
| 255 | /// out. |
Chris Lattner | 35f38a2 | 2009-03-31 22:37:52 +0000 | [diff] [blame] | 256 | std::vector<llvm::WeakVH> LLVMUsed; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 257 | |
| 258 | /// GlobalCtors - Store the list of global constructors and their respective |
| 259 | /// priorities to be emitted when the translation unit is complete. |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 260 | CtorList GlobalCtors; |
| 261 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 262 | /// GlobalDtors - Store the list of global destructors and their respective |
| 263 | /// priorities to be emitted when the translation unit is complete. |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 264 | CtorList GlobalDtors; |
| 265 | |
Anders Carlsson | 793a990 | 2010-06-22 16:05:32 +0000 | [diff] [blame] | 266 | /// MangledDeclNames - A map of canonical GlobalDecls to their mangled names. |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 267 | llvm::DenseMap<GlobalDecl, StringRef> MangledDeclNames; |
Anders Carlsson | 793a990 | 2010-06-22 16:05:32 +0000 | [diff] [blame] | 268 | llvm::BumpPtrAllocator MangledNamesAllocator; |
| 269 | |
Julien Lerouge | 77f68bb | 2011-09-09 22:41:49 +0000 | [diff] [blame] | 270 | /// Global annotations. |
Nate Begeman | 532485c | 2008-04-18 23:43:57 +0000 | [diff] [blame] | 271 | std::vector<llvm::Constant*> Annotations; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 272 | |
Julien Lerouge | 77f68bb | 2011-09-09 22:41:49 +0000 | [diff] [blame] | 273 | /// Map used to get unique annotation strings. |
| 274 | llvm::StringMap<llvm::Constant*> AnnotationStrings; |
| 275 | |
Anders Carlsson | c9e2091 | 2007-08-21 00:21:21 +0000 | [diff] [blame] | 276 | llvm::StringMap<llvm::Constant*> CFConstantStringMap; |
John McCall | a5e19c6 | 2011-08-04 01:03:22 +0000 | [diff] [blame] | 277 | llvm::StringMap<llvm::GlobalVariable*> ConstantStringMap; |
Fariborz Jahanian | 65ad5a4 | 2010-04-18 21:01:23 +0000 | [diff] [blame] | 278 | llvm::DenseMap<const Decl*, llvm::Value*> StaticLocalDeclMap; |
Fariborz Jahanian | cd93b96 | 2012-01-06 22:33:54 +0000 | [diff] [blame] | 279 | |
Fariborz Jahanian | b08cfb3 | 2012-01-08 19:13:23 +0000 | [diff] [blame^] | 280 | llvm::DenseMap<QualType, llvm::Constant *> AtomicSetterHelperFnMap; |
| 281 | llvm::DenseMap<QualType, llvm::Constant *> AtomicGetterHelperFnMap; |
Daniel Dunbar | 3e9df99 | 2008-08-23 18:37:06 +0000 | [diff] [blame] | 282 | |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 283 | /// CXXGlobalInits - Global variables with initializers that need to run |
Anders Carlsson | 89ed31d | 2009-08-08 23:24:23 +0000 | [diff] [blame] | 284 | /// before main. |
Eli Friedman | 6c6bda3 | 2010-01-08 00:50:11 +0000 | [diff] [blame] | 285 | std::vector<llvm::Constant*> CXXGlobalInits; |
John McCall | bf40cb5 | 2010-07-15 23:40:35 +0000 | [diff] [blame] | 286 | |
| 287 | /// When a C++ decl with an initializer is deferred, null is |
| 288 | /// appended to CXXGlobalInits, and the index of that null is placed |
| 289 | /// here so that the initializer will be performed in the correct |
| 290 | /// order. |
| 291 | llvm::DenseMap<const Decl*, unsigned> DelayedCXXInitPosition; |
Fariborz Jahanian | 9f967c5 | 2010-06-21 18:45:05 +0000 | [diff] [blame] | 292 | |
| 293 | /// - Global variables with initializers whose order of initialization |
| 294 | /// is set by init_priority attribute. |
Fariborz Jahanian | e0b691a | 2010-06-21 21:27:42 +0000 | [diff] [blame] | 295 | |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 296 | SmallVector<std::pair<OrderGlobalInits, llvm::Function*>, 8> |
Fariborz Jahanian | 9f967c5 | 2010-06-21 18:45:05 +0000 | [diff] [blame] | 297 | PrioritizedCXXGlobalInits; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 298 | |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 299 | /// CXXGlobalDtors - Global destructor functions and arguments that need to |
| 300 | /// run on termination. |
Chris Lattner | 810112e | 2010-06-19 05:52:45 +0000 | [diff] [blame] | 301 | std::vector<std::pair<llvm::WeakVH,llvm::Constant*> > CXXGlobalDtors; |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 302 | |
Douglas Gregor | 45c4ea7 | 2011-08-09 15:54:21 +0000 | [diff] [blame] | 303 | /// @name Cache for Objective-C runtime types |
| 304 | /// @{ |
| 305 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 306 | /// CFConstantStringClassRef - Cached reference to the class for constant |
| 307 | /// strings. This value has type int * but is actually an Obj-C class pointer. |
Anders Carlsson | c9e2091 | 2007-08-21 00:21:21 +0000 | [diff] [blame] | 308 | llvm::Constant *CFConstantStringClassRef; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 309 | |
Fariborz Jahanian | 4c73307 | 2010-10-19 17:19:29 +0000 | [diff] [blame] | 310 | /// ConstantStringClassRef - Cached reference to the class for constant |
Fariborz Jahanian | 2bb5dda | 2010-04-23 17:41:07 +0000 | [diff] [blame] | 311 | /// strings. This value has type int * but is actually an Obj-C class pointer. |
Fariborz Jahanian | 4c73307 | 2010-10-19 17:19:29 +0000 | [diff] [blame] | 312 | llvm::Constant *ConstantStringClassRef; |
Fariborz Jahanian | 2bb5dda | 2010-04-23 17:41:07 +0000 | [diff] [blame] | 313 | |
Douglas Gregor | 45c4ea7 | 2011-08-09 15:54:21 +0000 | [diff] [blame] | 314 | /// \brief The LLVM type corresponding to NSConstantString. |
| 315 | llvm::StructType *NSConstantStringType; |
| 316 | |
Douglas Gregor | 0815b57 | 2011-08-09 17:23:49 +0000 | [diff] [blame] | 317 | /// \brief The type used to describe the state of a fast enumeration in |
| 318 | /// Objective-C's for..in loop. |
| 319 | QualType ObjCFastEnumerationStateType; |
| 320 | |
Douglas Gregor | 45c4ea7 | 2011-08-09 15:54:21 +0000 | [diff] [blame] | 321 | /// @} |
| 322 | |
David Chisnall | 0d13f6f | 2010-01-23 02:40:42 +0000 | [diff] [blame] | 323 | /// Lazily create the Objective-C runtime |
| 324 | void createObjCRuntime(); |
| 325 | |
Peter Collingbourne | 8c25fc5 | 2011-09-19 21:14:35 +0000 | [diff] [blame] | 326 | void createOpenCLRuntime(); |
Peter Collingbourne | 6c0aa5f | 2011-10-06 18:29:37 +0000 | [diff] [blame] | 327 | void createCUDARuntime(); |
Peter Collingbourne | 8c25fc5 | 2011-09-19 21:14:35 +0000 | [diff] [blame] | 328 | |
Rafael Espindola | bcf6b98 | 2011-12-19 14:41:01 +0000 | [diff] [blame] | 329 | bool isTriviallyRecursive(const FunctionDecl *F); |
Rafael Espindola | a411d2f | 2011-10-26 20:41:06 +0000 | [diff] [blame] | 330 | bool shouldEmitFunction(const FunctionDecl *F); |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 331 | llvm::LLVMContext &VMContext; |
Daniel Dunbar | 673431a | 2010-07-16 00:00:15 +0000 | [diff] [blame] | 332 | |
| 333 | /// @name Cache for Blocks Runtime Globals |
| 334 | /// @{ |
| 335 | |
| 336 | llvm::Constant *NSConcreteGlobalBlock; |
| 337 | llvm::Constant *NSConcreteStackBlock; |
Daniel Dunbar | 754b9fb | 2010-07-16 00:00:19 +0000 | [diff] [blame] | 338 | |
Daniel Dunbar | 673431a | 2010-07-16 00:00:15 +0000 | [diff] [blame] | 339 | llvm::Constant *BlockObjectAssign; |
| 340 | llvm::Constant *BlockObjectDispose; |
| 341 | |
Chris Lattner | 9cbe4f0 | 2011-07-09 17:41:47 +0000 | [diff] [blame] | 342 | llvm::Type *BlockDescriptorType; |
| 343 | llvm::Type *GenericBlockLiteralType; |
John McCall | d16c2cf | 2011-02-08 08:22:06 +0000 | [diff] [blame] | 344 | |
| 345 | struct { |
| 346 | int GlobalUniqueCount; |
| 347 | } Block; |
| 348 | |
Daniel Dunbar | 673431a | 2010-07-16 00:00:15 +0000 | [diff] [blame] | 349 | /// @} |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 350 | public: |
Chandler Carruth | 2811ccf | 2009-11-12 17:24:48 +0000 | [diff] [blame] | 351 | CodeGenModule(ASTContext &C, const CodeGenOptions &CodeGenOpts, |
David Blaikie | d6471f7 | 2011-09-25 23:23:43 +0000 | [diff] [blame] | 352 | llvm::Module &M, const llvm::TargetData &TD, |
| 353 | DiagnosticsEngine &Diags); |
Ted Kremenek | 815c78f | 2008-08-05 18:50:11 +0000 | [diff] [blame] | 354 | |
Chris Lattner | 2b94fe3 | 2008-03-01 08:45:05 +0000 | [diff] [blame] | 355 | ~CodeGenModule(); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 356 | |
Ted Kremenek | 815c78f | 2008-08-05 18:50:11 +0000 | [diff] [blame] | 357 | /// Release - Finalize LLVM code generation. |
| 358 | void Release(); |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 359 | |
| 360 | /// getObjCRuntime() - Return a reference to the configured |
| 361 | /// Objective-C runtime. |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 362 | CGObjCRuntime &getObjCRuntime() { |
Peter Collingbourne | e926523 | 2011-07-27 20:29:46 +0000 | [diff] [blame] | 363 | if (!ObjCRuntime) createObjCRuntime(); |
| 364 | return *ObjCRuntime; |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 365 | } |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 366 | |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 367 | /// hasObjCRuntime() - Return true iff an Objective-C runtime has |
| 368 | /// been configured. |
Peter Collingbourne | e926523 | 2011-07-27 20:29:46 +0000 | [diff] [blame] | 369 | bool hasObjCRuntime() { return !!ObjCRuntime; } |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 370 | |
Peter Collingbourne | 6c0aa5f | 2011-10-06 18:29:37 +0000 | [diff] [blame] | 371 | /// getOpenCLRuntime() - Return a reference to the configured OpenCL runtime. |
Peter Collingbourne | 8c25fc5 | 2011-09-19 21:14:35 +0000 | [diff] [blame] | 372 | CGOpenCLRuntime &getOpenCLRuntime() { |
| 373 | assert(OpenCLRuntime != 0); |
| 374 | return *OpenCLRuntime; |
| 375 | } |
| 376 | |
Peter Collingbourne | 6c0aa5f | 2011-10-06 18:29:37 +0000 | [diff] [blame] | 377 | /// getCUDARuntime() - Return a reference to the configured CUDA runtime. |
| 378 | CGCUDARuntime &getCUDARuntime() { |
| 379 | assert(CUDARuntime != 0); |
| 380 | return *CUDARuntime; |
| 381 | } |
| 382 | |
John McCall | f16aa10 | 2010-08-22 21:01:12 +0000 | [diff] [blame] | 383 | /// getCXXABI() - Return a reference to the configured C++ ABI. |
| 384 | CGCXXABI &getCXXABI() { return ABI; } |
Charles Davis | 3a811f1 | 2010-05-25 19:52:27 +0000 | [diff] [blame] | 385 | |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 386 | ARCEntrypoints &getARCEntrypoints() const { |
| 387 | assert(getLangOptions().ObjCAutoRefCount && ARCData != 0); |
| 388 | return *ARCData; |
| 389 | } |
| 390 | |
| 391 | RREntrypoints &getRREntrypoints() const { |
| 392 | assert(RRData != 0); |
| 393 | return *RRData; |
| 394 | } |
| 395 | |
Fariborz Jahanian | 63326a5 | 2010-04-19 18:15:02 +0000 | [diff] [blame] | 396 | llvm::Value *getStaticLocalDeclAddress(const VarDecl *VD) { |
Fariborz Jahanian | 65ad5a4 | 2010-04-18 21:01:23 +0000 | [diff] [blame] | 397 | return StaticLocalDeclMap[VD]; |
| 398 | } |
Fariborz Jahanian | 63326a5 | 2010-04-19 18:15:02 +0000 | [diff] [blame] | 399 | void setStaticLocalDeclAddress(const VarDecl *D, |
Fariborz Jahanian | 65ad5a4 | 2010-04-18 21:01:23 +0000 | [diff] [blame] | 400 | llvm::GlobalVariable *GV) { |
| 401 | StaticLocalDeclMap[D] = GV; |
| 402 | } |
| 403 | |
Fariborz Jahanian | b08cfb3 | 2012-01-08 19:13:23 +0000 | [diff] [blame^] | 404 | llvm::Constant *getAtomicSetterHelperFnMap(QualType Ty) { |
| 405 | return AtomicSetterHelperFnMap[Ty]; |
Fariborz Jahanian | cd93b96 | 2012-01-06 22:33:54 +0000 | [diff] [blame] | 406 | } |
Fariborz Jahanian | b08cfb3 | 2012-01-08 19:13:23 +0000 | [diff] [blame^] | 407 | void setAtomicSetterHelperFnMap(QualType Ty, |
Fariborz Jahanian | cd93b96 | 2012-01-06 22:33:54 +0000 | [diff] [blame] | 408 | llvm::Constant *Fn) { |
Fariborz Jahanian | b08cfb3 | 2012-01-08 19:13:23 +0000 | [diff] [blame^] | 409 | AtomicSetterHelperFnMap[Ty] = Fn; |
| 410 | } |
| 411 | |
| 412 | llvm::Constant *getAtomicGetterHelperFnMap(QualType Ty) { |
| 413 | return AtomicGetterHelperFnMap[Ty]; |
| 414 | } |
| 415 | void setAtomicGetterHelperFnMap(QualType Ty, |
| 416 | llvm::Constant *Fn) { |
| 417 | AtomicGetterHelperFnMap[Ty] = Fn; |
Fariborz Jahanian | cd93b96 | 2012-01-06 22:33:54 +0000 | [diff] [blame] | 418 | } |
| 419 | |
Devang Patel | aa11289 | 2011-03-07 18:45:56 +0000 | [diff] [blame] | 420 | CGDebugInfo *getModuleDebugInfo() { return DebugInfo; } |
Devang Patel | 5de7a0e | 2011-03-07 18:29:53 +0000 | [diff] [blame] | 421 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 422 | ASTContext &getContext() const { return Context; } |
Chandler Carruth | 2811ccf | 2009-11-12 17:24:48 +0000 | [diff] [blame] | 423 | const CodeGenOptions &getCodeGenOpts() const { return CodeGenOpts; } |
Chris Lattner | 45e8cbd | 2007-11-28 05:34:05 +0000 | [diff] [blame] | 424 | const LangOptions &getLangOptions() const { return Features; } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 425 | llvm::Module &getModule() const { return TheModule; } |
| 426 | CodeGenTypes &getTypes() { return Types; } |
Anders Carlsson | af44035 | 2010-03-23 04:11:45 +0000 | [diff] [blame] | 427 | CodeGenVTables &getVTables() { return VTables; } |
Peter Collingbourne | 1d2b317 | 2011-09-26 01:56:30 +0000 | [diff] [blame] | 428 | VTableContext &getVTableContext() { return VTables.getVTableContext(); } |
David Blaikie | d6471f7 | 2011-09-25 23:23:43 +0000 | [diff] [blame] | 429 | DiagnosticsEngine &getDiags() const { return Diags; } |
Chris Lattner | 8f92528 | 2008-01-03 06:36:51 +0000 | [diff] [blame] | 430 | const llvm::TargetData &getTargetData() const { return TheTargetData; } |
Douglas Gregor | bcfd1f5 | 2011-09-02 00:18:52 +0000 | [diff] [blame] | 431 | const TargetInfo &getTarget() const { return Context.getTargetInfo(); } |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 432 | llvm::LLVMContext &getLLVMContext() { return VMContext; } |
Chris Lattner | ea04432 | 2010-07-29 02:01:43 +0000 | [diff] [blame] | 433 | const TargetCodeGenInfo &getTargetCodeGenInfo(); |
John McCall | 6374c33 | 2010-03-06 00:35:14 +0000 | [diff] [blame] | 434 | bool isTargetDarwin() const; |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 435 | |
John McCall | bc7fbf0 | 2011-02-26 08:07:02 +0000 | [diff] [blame] | 436 | bool shouldUseTBAA() const { return TBAA != 0; } |
| 437 | |
Dan Gohman | 3d5aff5 | 2010-10-14 23:06:10 +0000 | [diff] [blame] | 438 | llvm::MDNode *getTBAAInfo(QualType QTy); |
| 439 | |
| 440 | static void DecorateInstruction(llvm::Instruction *Inst, |
| 441 | llvm::MDNode *TBAAInfo); |
| 442 | |
John McCall | bc8d40d | 2011-06-24 21:55:10 +0000 | [diff] [blame] | 443 | /// getSize - Emit the given number of characters as a value of type size_t. |
| 444 | llvm::ConstantInt *getSize(CharUnits numChars); |
| 445 | |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 446 | /// setGlobalVisibility - Set the visibility for the given LLVM |
| 447 | /// GlobalValue. |
Anders Carlsson | 0ffeaad | 2011-01-29 19:39:23 +0000 | [diff] [blame] | 448 | void setGlobalVisibility(llvm::GlobalValue *GV, const NamedDecl *D) const; |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 449 | |
Anders Carlsson | fa2e99f | 2011-01-29 20:24:48 +0000 | [diff] [blame] | 450 | /// TypeVisibilityKind - The kind of global variable that is passed to |
| 451 | /// setTypeVisibility |
| 452 | enum TypeVisibilityKind { |
| 453 | TVK_ForVTT, |
| 454 | TVK_ForVTable, |
John McCall | bda0d6b | 2011-03-27 09:00:25 +0000 | [diff] [blame] | 455 | TVK_ForConstructionVTable, |
Anders Carlsson | fa2e99f | 2011-01-29 20:24:48 +0000 | [diff] [blame] | 456 | TVK_ForRTTI, |
| 457 | TVK_ForRTTIName |
| 458 | }; |
| 459 | |
John McCall | cbfe502 | 2010-08-04 08:34:44 +0000 | [diff] [blame] | 460 | /// setTypeVisibility - Set the visibility for the given global |
| 461 | /// value which holds information about a type. |
| 462 | void setTypeVisibility(llvm::GlobalValue *GV, const CXXRecordDecl *D, |
Anders Carlsson | fa2e99f | 2011-01-29 20:24:48 +0000 | [diff] [blame] | 463 | TypeVisibilityKind TVK) const; |
John McCall | cbfe502 | 2010-08-04 08:34:44 +0000 | [diff] [blame] | 464 | |
Anders Carlsson | c7e98fa | 2011-01-29 20:59:35 +0000 | [diff] [blame] | 465 | static llvm::GlobalValue::VisibilityTypes GetLLVMVisibility(Visibility V) { |
| 466 | switch (V) { |
| 467 | case DefaultVisibility: return llvm::GlobalValue::DefaultVisibility; |
| 468 | case HiddenVisibility: return llvm::GlobalValue::HiddenVisibility; |
| 469 | case ProtectedVisibility: return llvm::GlobalValue::ProtectedVisibility; |
| 470 | } |
| 471 | llvm_unreachable("unknown visibility!"); |
| 472 | return llvm::GlobalValue::DefaultVisibility; |
| 473 | } |
| 474 | |
John McCall | d46f985 | 2010-02-19 01:32:20 +0000 | [diff] [blame] | 475 | llvm::Constant *GetAddrOfGlobal(GlobalDecl GD) { |
| 476 | if (isa<CXXConstructorDecl>(GD.getDecl())) |
| 477 | return GetAddrOfCXXConstructor(cast<CXXConstructorDecl>(GD.getDecl()), |
| 478 | GD.getCtorType()); |
| 479 | else if (isa<CXXDestructorDecl>(GD.getDecl())) |
| 480 | return GetAddrOfCXXDestructor(cast<CXXDestructorDecl>(GD.getDecl()), |
| 481 | GD.getDtorType()); |
| 482 | else if (isa<FunctionDecl>(GD.getDecl())) |
| 483 | return GetAddrOfFunction(GD); |
| 484 | else |
| 485 | return GetAddrOfGlobalVar(cast<VarDecl>(GD.getDecl())); |
| 486 | } |
| 487 | |
Anders Carlsson | 3bd6202 | 2011-01-29 18:20:20 +0000 | [diff] [blame] | 488 | /// CreateOrReplaceCXXRuntimeVariable - Will return a global variable of the given |
| 489 | /// type. If a variable with a different type already exists then a new |
| 490 | /// variable with the right type will be created and all uses of the old |
| 491 | /// variable will be replaced with a bitcast to the new variable. |
| 492 | llvm::GlobalVariable * |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 493 | CreateOrReplaceCXXRuntimeVariable(StringRef Name, llvm::Type *Ty, |
Anders Carlsson | 3bd6202 | 2011-01-29 18:20:20 +0000 | [diff] [blame] | 494 | llvm::GlobalValue::LinkageTypes Linkage); |
| 495 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 496 | /// GetAddrOfGlobalVar - Return the llvm::Constant for the address of the |
Chris Lattner | 570585c | 2009-03-21 09:16:30 +0000 | [diff] [blame] | 497 | /// given global variable. If Ty is non-null and if the global doesn't exist, |
| 498 | /// then it will be greated with the specified type instead of whatever the |
| 499 | /// normal requested type would be. |
| 500 | llvm::Constant *GetAddrOfGlobalVar(const VarDecl *D, |
Chris Lattner | 2acc6e3 | 2011-07-18 04:24:23 +0000 | [diff] [blame] | 501 | llvm::Type *Ty = 0); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 502 | |
John McCall | 1de4d4e | 2011-04-07 08:22:57 +0000 | [diff] [blame] | 503 | |
Chris Lattner | 3480950 | 2009-03-21 08:53:37 +0000 | [diff] [blame] | 504 | /// GetAddrOfFunction - Return the address of the given function. If Ty is |
| 505 | /// non-null, then this function will use the specified type if it has to |
| 506 | /// create it. |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 507 | llvm::Constant *GetAddrOfFunction(GlobalDecl GD, |
Chris Lattner | 2acc6e3 | 2011-07-18 04:24:23 +0000 | [diff] [blame] | 508 | llvm::Type *Ty = 0, |
Anders Carlsson | 1faa89f | 2011-02-05 04:35:53 +0000 | [diff] [blame] | 509 | bool ForVTable = false); |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 510 | |
Anders Carlsson | 1d7088d | 2009-12-17 07:09:17 +0000 | [diff] [blame] | 511 | /// GetAddrOfRTTIDescriptor - Get the address of the RTTI descriptor |
| 512 | /// for the given type. |
John McCall | 9dffe6f | 2010-04-30 01:15:21 +0000 | [diff] [blame] | 513 | llvm::Constant *GetAddrOfRTTIDescriptor(QualType Ty, bool ForEH = false); |
Anders Carlsson | 31b7f52 | 2009-12-11 02:46:30 +0000 | [diff] [blame] | 514 | |
Anders Carlsson | 19879c9 | 2010-03-23 17:17:29 +0000 | [diff] [blame] | 515 | /// GetAddrOfThunk - Get the address of the thunk for the given global decl. |
Anders Carlsson | 84c49e4 | 2011-02-06 17:15:43 +0000 | [diff] [blame] | 516 | llvm::Constant *GetAddrOfThunk(GlobalDecl GD, const ThunkInfo &Thunk); |
Anders Carlsson | 19879c9 | 2010-03-23 17:17:29 +0000 | [diff] [blame] | 517 | |
Rafael Espindola | 6a83670 | 2010-03-04 18:17:24 +0000 | [diff] [blame] | 518 | /// GetWeakRefReference - Get a reference to the target of VD. |
| 519 | llvm::Constant *GetWeakRefReference(const ValueDecl *VD); |
| 520 | |
Anders Carlsson | bb7e17b | 2010-01-31 01:36:53 +0000 | [diff] [blame] | 521 | /// GetNonVirtualBaseClassOffset - Returns the offset from a derived class to |
Anders Carlsson | e04d45e | 2010-04-24 21:27:51 +0000 | [diff] [blame] | 522 | /// a class. Returns null if the offset is 0. |
Anders Carlsson | a04efdf | 2010-04-24 21:23:59 +0000 | [diff] [blame] | 523 | llvm::Constant * |
| 524 | GetNonVirtualBaseClassOffset(const CXXRecordDecl *ClassDecl, |
John McCall | f871d0c | 2010-08-07 06:22:56 +0000 | [diff] [blame] | 525 | CastExpr::path_const_iterator PathBegin, |
| 526 | CastExpr::path_const_iterator PathEnd); |
John McCall | d16c2cf | 2011-02-08 08:22:06 +0000 | [diff] [blame] | 527 | |
John McCall | f0c11f7 | 2011-03-31 08:03:29 +0000 | [diff] [blame] | 528 | /// A pair of helper functions for a __block variable. |
| 529 | class ByrefHelpers : public llvm::FoldingSetNode { |
| 530 | public: |
| 531 | llvm::Constant *CopyHelper; |
| 532 | llvm::Constant *DisposeHelper; |
| 533 | |
| 534 | /// The alignment of the field. This is important because |
| 535 | /// different offsets to the field within the byref struct need to |
| 536 | /// have different helper functions. |
| 537 | CharUnits Alignment; |
| 538 | |
| 539 | ByrefHelpers(CharUnits alignment) : Alignment(alignment) {} |
| 540 | virtual ~ByrefHelpers(); |
| 541 | |
| 542 | void Profile(llvm::FoldingSetNodeID &id) const { |
| 543 | id.AddInteger(Alignment.getQuantity()); |
| 544 | profileImpl(id); |
| 545 | } |
| 546 | virtual void profileImpl(llvm::FoldingSetNodeID &id) const = 0; |
| 547 | |
| 548 | virtual bool needsCopy() const { return true; } |
| 549 | virtual void emitCopy(CodeGenFunction &CGF, |
| 550 | llvm::Value *dest, llvm::Value *src) = 0; |
| 551 | |
| 552 | virtual bool needsDispose() const { return true; } |
| 553 | virtual void emitDispose(CodeGenFunction &CGF, llvm::Value *field) = 0; |
| 554 | }; |
| 555 | |
| 556 | llvm::FoldingSet<ByrefHelpers> ByrefHelpersCache; |
John McCall | d16c2cf | 2011-02-08 08:22:06 +0000 | [diff] [blame] | 557 | |
John McCall | 8178df3 | 2011-02-22 22:38:33 +0000 | [diff] [blame] | 558 | /// getUniqueBlockCount - Fetches the global unique block count. |
| 559 | int getUniqueBlockCount() { return ++Block.GlobalUniqueCount; } |
John McCall | d16c2cf | 2011-02-08 08:22:06 +0000 | [diff] [blame] | 560 | |
| 561 | /// getBlockDescriptorType - Fetches the type of a generic block |
| 562 | /// descriptor. |
Chris Lattner | 9cbe4f0 | 2011-07-09 17:41:47 +0000 | [diff] [blame] | 563 | llvm::Type *getBlockDescriptorType(); |
John McCall | d16c2cf | 2011-02-08 08:22:06 +0000 | [diff] [blame] | 564 | |
| 565 | /// getGenericBlockLiteralType - The type of a generic block literal. |
Chris Lattner | 9cbe4f0 | 2011-07-09 17:41:47 +0000 | [diff] [blame] | 566 | llvm::Type *getGenericBlockLiteralType(); |
John McCall | d16c2cf | 2011-02-08 08:22:06 +0000 | [diff] [blame] | 567 | |
| 568 | /// GetAddrOfGlobalBlock - Gets the address of a block which |
| 569 | /// requires no captures. |
| 570 | llvm::Constant *GetAddrOfGlobalBlock(const BlockExpr *BE, const char *); |
Anders Carlsson | a04efdf | 2010-04-24 21:23:59 +0000 | [diff] [blame] | 571 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 572 | /// GetStringForStringLiteral - Return the appropriate bytes for a string |
| 573 | /// literal, properly padded to match the literal type. If only the address of |
| 574 | /// a constant is needed consider using GetAddrOfConstantStringLiteral. |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 575 | std::string GetStringForStringLiteral(const StringLiteral *E); |
| 576 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 577 | /// GetAddrOfConstantCFString - Return a pointer to a constant CFString object |
| 578 | /// for the given string. |
Steve Naroff | 8d4141f | 2009-04-01 13:55:36 +0000 | [diff] [blame] | 579 | llvm::Constant *GetAddrOfConstantCFString(const StringLiteral *Literal); |
Fariborz Jahanian | 33e982b | 2010-04-22 20:26:39 +0000 | [diff] [blame] | 580 | |
Fariborz Jahanian | 4c73307 | 2010-10-19 17:19:29 +0000 | [diff] [blame] | 581 | /// GetAddrOfConstantString - Return a pointer to a constant NSString object |
| 582 | /// for the given string. Or a user defined String object as defined via |
| 583 | /// -fconstant-string-class=class_name option. |
| 584 | llvm::Constant *GetAddrOfConstantString(const StringLiteral *Literal); |
Chris Lattner | a7ad98f | 2008-02-11 00:02:17 +0000 | [diff] [blame] | 585 | |
Eli Friedman | 64f45a2 | 2011-11-01 02:23:42 +0000 | [diff] [blame] | 586 | /// GetConstantArrayFromStringLiteral - Return a constant array for the given |
| 587 | /// string. |
| 588 | llvm::Constant *GetConstantArrayFromStringLiteral(const StringLiteral *E); |
| 589 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 590 | /// GetAddrOfConstantStringFromLiteral - Return a pointer to a constant array |
| 591 | /// for the given string literal. |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 592 | llvm::Constant *GetAddrOfConstantStringFromLiteral(const StringLiteral *S); |
Daniel Dunbar | 1e04976 | 2008-08-10 20:25:57 +0000 | [diff] [blame] | 593 | |
Chris Lattner | eaf2bb8 | 2009-02-24 22:18:39 +0000 | [diff] [blame] | 594 | /// GetAddrOfConstantStringFromObjCEncode - Return a pointer to a constant |
| 595 | /// array for the given ObjCEncodeExpr node. |
| 596 | llvm::Constant *GetAddrOfConstantStringFromObjCEncode(const ObjCEncodeExpr *); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 597 | |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 598 | /// GetAddrOfConstantString - Returns a pointer to a character array |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 599 | /// containing the literal. This contents are exactly that of the given |
| 600 | /// string, i.e. it will not be null terminated automatically; see |
| 601 | /// GetAddrOfConstantCString. Note that whether the result is actually a |
| 602 | /// pointer to an LLVM constant depends on Feature.WriteableStrings. |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 603 | /// |
| 604 | /// The result has pointer to array type. |
Daniel Dunbar | 5fabf9d | 2008-10-17 21:56:50 +0000 | [diff] [blame] | 605 | /// |
| 606 | /// \param GlobalName If provided, the name to use for the global |
| 607 | /// (if one is created). |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 608 | llvm::Constant *GetAddrOfConstantString(StringRef Str, |
John McCall | a5e19c6 | 2011-08-04 01:03:22 +0000 | [diff] [blame] | 609 | const char *GlobalName=0, |
| 610 | unsigned Alignment=1); |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 611 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 612 | /// GetAddrOfConstantCString - Returns a pointer to a character array |
| 613 | /// containing the literal and a terminating '\0' character. The result has |
| 614 | /// pointer to array type. |
Daniel Dunbar | 5fabf9d | 2008-10-17 21:56:50 +0000 | [diff] [blame] | 615 | /// |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 616 | /// \param GlobalName If provided, the name to use for the global (if one is |
| 617 | /// created). |
Daniel Dunbar | 5fabf9d | 2008-10-17 21:56:50 +0000 | [diff] [blame] | 618 | llvm::Constant *GetAddrOfConstantCString(const std::string &str, |
John McCall | a5e19c6 | 2011-08-04 01:03:22 +0000 | [diff] [blame] | 619 | const char *GlobalName=0, |
| 620 | unsigned Alignment=1); |
Richard Smith | 7401cf5 | 2011-11-22 22:48:32 +0000 | [diff] [blame] | 621 | |
| 622 | /// GetAddrOfConstantCompoundLiteral - Returns a pointer to a constant global |
| 623 | /// variable for the given file-scope compound literal expression. |
| 624 | llvm::Constant *GetAddrOfConstantCompoundLiteral(const CompoundLiteralExpr*E); |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 625 | |
Douglas Gregor | 0815b57 | 2011-08-09 17:23:49 +0000 | [diff] [blame] | 626 | /// \brief Retrieve the record type that describes the state of an |
| 627 | /// Objective-C fast enumeration loop (for..in). |
| 628 | QualType getObjCFastEnumerationStateType(); |
| 629 | |
Anders Carlsson | 363c184 | 2009-04-16 23:57:24 +0000 | [diff] [blame] | 630 | /// GetAddrOfCXXConstructor - Return the address of the constructor of the |
| 631 | /// given type. |
John McCall | 1f6f961 | 2011-03-09 08:12:35 +0000 | [diff] [blame] | 632 | llvm::GlobalValue *GetAddrOfCXXConstructor(const CXXConstructorDecl *ctor, |
| 633 | CXXCtorType ctorType, |
| 634 | const CGFunctionInfo *fnInfo = 0); |
Anders Carlsson | 27ae536 | 2009-04-17 01:58:57 +0000 | [diff] [blame] | 635 | |
| 636 | /// GetAddrOfCXXDestructor - Return the address of the constructor of the |
| 637 | /// given type. |
John McCall | 1f6f961 | 2011-03-09 08:12:35 +0000 | [diff] [blame] | 638 | llvm::GlobalValue *GetAddrOfCXXDestructor(const CXXDestructorDecl *dtor, |
| 639 | CXXDtorType dtorType, |
| 640 | const CGFunctionInfo *fnInfo = 0); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 641 | |
Daniel Dunbar | 41071de | 2008-08-15 23:26:23 +0000 | [diff] [blame] | 642 | /// getBuiltinLibFunction - Given a builtin id for a function like |
| 643 | /// "__builtin_fabsf", return a Function* for "fabsf". |
Daniel Dunbar | 34771b5 | 2009-09-14 04:33:21 +0000 | [diff] [blame] | 644 | llvm::Value *getBuiltinLibFunction(const FunctionDecl *FD, |
| 645 | unsigned BuiltinID); |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 646 | |
Chris Lattner | 2d3ba4f | 2011-07-23 17:14:25 +0000 | [diff] [blame] | 647 | llvm::Function *getIntrinsic(unsigned IID, ArrayRef<llvm::Type*> Tys = |
| 648 | ArrayRef<llvm::Type*>()); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 649 | |
Daniel Dunbar | 41071de | 2008-08-15 23:26:23 +0000 | [diff] [blame] | 650 | /// EmitTopLevelDecl - Emit code for a single top level declaration. |
| 651 | void EmitTopLevelDecl(Decl *D); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 652 | |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 653 | /// AddUsedGlobal - Add a global which should be forced to be |
| 654 | /// present in the object file; these are emitted to the llvm.used |
| 655 | /// metadata global. |
| 656 | void AddUsedGlobal(llvm::GlobalValue *GV); |
| 657 | |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 658 | /// AddCXXDtorEntry - Add a destructor and object to add to the C++ global |
| 659 | /// destructor function. |
Chris Lattner | 810112e | 2010-06-19 05:52:45 +0000 | [diff] [blame] | 660 | void AddCXXDtorEntry(llvm::Constant *DtorFn, llvm::Constant *Object) { |
| 661 | CXXGlobalDtors.push_back(std::make_pair(DtorFn, Object)); |
| 662 | } |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 663 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 664 | /// CreateRuntimeFunction - Create a new runtime function with the specified |
| 665 | /// type and name. |
Chris Lattner | 2acc6e3 | 2011-07-18 04:24:23 +0000 | [diff] [blame] | 666 | llvm::Constant *CreateRuntimeFunction(llvm::FunctionType *Ty, |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 667 | StringRef Name, |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 668 | llvm::Attributes ExtraAttrs = |
| 669 | llvm::Attribute::None); |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 670 | /// CreateRuntimeVariable - Create a new runtime global variable with the |
| 671 | /// specified type and name. |
Chris Lattner | 2acc6e3 | 2011-07-18 04:24:23 +0000 | [diff] [blame] | 672 | llvm::Constant *CreateRuntimeVariable(llvm::Type *Ty, |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 673 | StringRef Name); |
Daniel Dunbar | f1968f2 | 2008-10-01 00:49:24 +0000 | [diff] [blame] | 674 | |
Daniel Dunbar | 673431a | 2010-07-16 00:00:15 +0000 | [diff] [blame] | 675 | ///@name Custom Blocks Runtime Interfaces |
| 676 | ///@{ |
| 677 | |
| 678 | llvm::Constant *getNSConcreteGlobalBlock(); |
| 679 | llvm::Constant *getNSConcreteStackBlock(); |
| 680 | llvm::Constant *getBlockObjectAssign(); |
| 681 | llvm::Constant *getBlockObjectDispose(); |
| 682 | |
| 683 | ///@} |
| 684 | |
Devang Patel | e80d567 | 2011-03-23 16:29:39 +0000 | [diff] [blame] | 685 | // UpdateCompleteType - Make sure that this type is translated. |
| 686 | void UpdateCompletedType(const TagDecl *TD); |
Daniel Dunbar | d60f2fb | 2009-02-17 18:43:32 +0000 | [diff] [blame] | 687 | |
John McCall | 5808ce4 | 2011-02-03 08:15:49 +0000 | [diff] [blame] | 688 | llvm::Constant *getMemberPointerConstant(const UnaryOperator *e); |
| 689 | |
Daniel Dunbar | d60f2fb | 2009-02-17 18:43:32 +0000 | [diff] [blame] | 690 | /// EmitConstantExpr - Try to emit the given expression as a |
| 691 | /// constant; returns 0 if the expression cannot be emitted as a |
| 692 | /// constant. |
Anders Carlsson | e9352cc | 2009-04-08 04:48:15 +0000 | [diff] [blame] | 693 | llvm::Constant *EmitConstantExpr(const Expr *E, QualType DestType, |
| 694 | CodeGenFunction *CGF = 0); |
Daniel Dunbar | d60f2fb | 2009-02-17 18:43:32 +0000 | [diff] [blame] | 695 | |
Eli Friedman | 0f59312 | 2009-04-13 21:47:26 +0000 | [diff] [blame] | 696 | /// EmitNullConstant - Return the result of value-initializing the given |
| 697 | /// type, i.e. a null expression of the given type. This is usually, |
| 698 | /// but not always, an LLVM null constant. |
| 699 | llvm::Constant *EmitNullConstant(QualType T); |
| 700 | |
Eli Friedman | 2ed7cb6 | 2011-10-14 02:27:24 +0000 | [diff] [blame] | 701 | /// EmitNullConstantForBase - Return a null constant appropriate for |
| 702 | /// zero-initializing a base class with the given type. This is usually, |
| 703 | /// but not always, an LLVM null constant. |
| 704 | llvm::Constant *EmitNullConstantForBase(const CXXRecordDecl *Record); |
| 705 | |
John McCall | 3209669 | 2011-03-18 02:56:14 +0000 | [diff] [blame] | 706 | /// Error - Emit a general error that something can't be done. |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 707 | void Error(SourceLocation loc, StringRef error); |
John McCall | 3209669 | 2011-03-18 02:56:14 +0000 | [diff] [blame] | 708 | |
Daniel Dunbar | 488e993 | 2008-08-16 00:56:44 +0000 | [diff] [blame] | 709 | /// ErrorUnsupported - Print out an error that codegen doesn't support the |
Daniel Dunbar | 90df4b6 | 2008-09-04 03:43:08 +0000 | [diff] [blame] | 710 | /// specified stmt yet. |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 711 | /// \param OmitOnError - If true, then this error should only be emitted if no |
| 712 | /// other errors have been reported. |
| 713 | void ErrorUnsupported(const Stmt *S, const char *Type, |
Daniel Dunbar | 90df4b6 | 2008-09-04 03:43:08 +0000 | [diff] [blame] | 714 | bool OmitOnError=false); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 715 | |
Daniel Dunbar | 488e993 | 2008-08-16 00:56:44 +0000 | [diff] [blame] | 716 | /// ErrorUnsupported - Print out an error that codegen doesn't support the |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 717 | /// specified decl yet. |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 718 | /// \param OmitOnError - If true, then this error should only be emitted if no |
| 719 | /// other errors have been reported. |
Daniel Dunbar | 90df4b6 | 2008-09-04 03:43:08 +0000 | [diff] [blame] | 720 | void ErrorUnsupported(const Decl *D, const char *Type, |
| 721 | bool OmitOnError=false); |
Dan Gohman | 4f8d123 | 2008-05-22 00:50:06 +0000 | [diff] [blame] | 722 | |
Daniel Dunbar | 0e4f40e | 2009-04-17 00:48:04 +0000 | [diff] [blame] | 723 | /// SetInternalFunctionAttributes - Set the attributes on the LLVM |
| 724 | /// function for the given decl and function info. This applies |
| 725 | /// attributes necessary for handling the ABI as well as user |
| 726 | /// specified attributes like section. |
| 727 | void SetInternalFunctionAttributes(const Decl *D, llvm::Function *F, |
| 728 | const CGFunctionInfo &FI); |
Daniel Dunbar | f80519b | 2008-09-04 23:41:35 +0000 | [diff] [blame] | 729 | |
Daniel Dunbar | 7dbd819 | 2009-04-14 07:08:30 +0000 | [diff] [blame] | 730 | /// SetLLVMFunctionAttributes - Set the LLVM function attributes |
| 731 | /// (sext, zext, etc). |
| 732 | void SetLLVMFunctionAttributes(const Decl *D, |
| 733 | const CGFunctionInfo &Info, |
| 734 | llvm::Function *F); |
Daniel Dunbar | b768807 | 2008-09-10 00:41:16 +0000 | [diff] [blame] | 735 | |
Daniel Dunbar | 7c65e99 | 2009-04-14 08:05:55 +0000 | [diff] [blame] | 736 | /// SetLLVMFunctionAttributesForDefinition - Set the LLVM function attributes |
| 737 | /// which only apply to a function definintion. |
| 738 | void SetLLVMFunctionAttributesForDefinition(const Decl *D, llvm::Function *F); |
| 739 | |
Daniel Dunbar | dacf9dd | 2010-07-14 23:39:36 +0000 | [diff] [blame] | 740 | /// ReturnTypeUsesSRet - Return true iff the given type uses 'sret' when used |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 741 | /// as a return type. |
Daniel Dunbar | dacf9dd | 2010-07-14 23:39:36 +0000 | [diff] [blame] | 742 | bool ReturnTypeUsesSRet(const CGFunctionInfo &FI); |
| 743 | |
Anders Carlsson | eea6480 | 2011-10-31 16:27:11 +0000 | [diff] [blame] | 744 | /// ReturnTypeUsesFPRet - Return true iff the given type uses 'fpret' when |
| 745 | /// used as a return type. |
Daniel Dunbar | dacf9dd | 2010-07-14 23:39:36 +0000 | [diff] [blame] | 746 | bool ReturnTypeUsesFPRet(QualType ResultType); |
Daniel Dunbar | b768807 | 2008-09-10 00:41:16 +0000 | [diff] [blame] | 747 | |
Anders Carlsson | eea6480 | 2011-10-31 16:27:11 +0000 | [diff] [blame] | 748 | /// ReturnTypeUsesFP2Ret - Return true iff the given type uses 'fp2ret' when |
| 749 | /// used as a return type. |
| 750 | bool ReturnTypeUsesFP2Ret(QualType ResultType); |
| 751 | |
Daniel Dunbar | ca6408c | 2009-09-12 00:59:20 +0000 | [diff] [blame] | 752 | /// ConstructAttributeList - Get the LLVM attributes and calling convention to |
| 753 | /// use for a particular function type. |
| 754 | /// |
| 755 | /// \param Info - The function type information. |
| 756 | /// \param TargetDecl - The decl these attributes are being constructed |
| 757 | /// for. If supplied the attributes applied to this decl may contribute to the |
| 758 | /// function attributes and calling convention. |
| 759 | /// \param PAL [out] - On return, the attribute list to use. |
| 760 | /// \param CallingConv [out] - On return, the LLVM calling convention to use. |
Daniel Dunbar | 88b5396 | 2009-02-02 22:03:45 +0000 | [diff] [blame] | 761 | void ConstructAttributeList(const CGFunctionInfo &Info, |
| 762 | const Decl *TargetDecl, |
Daniel Dunbar | ca6408c | 2009-09-12 00:59:20 +0000 | [diff] [blame] | 763 | AttributeListType &PAL, |
| 764 | unsigned &CallingConv); |
Daniel Dunbar | b768807 | 2008-09-10 00:41:16 +0000 | [diff] [blame] | 765 | |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 766 | StringRef getMangledName(GlobalDecl GD); |
Peter Collingbourne | 1411047 | 2011-01-13 18:57:25 +0000 | [diff] [blame] | 767 | void getBlockMangledName(GlobalDecl GD, MangleBuffer &Buffer, |
| 768 | const BlockDecl *BD); |
Douglas Gregor | b6c8c8b | 2009-04-21 17:11:58 +0000 | [diff] [blame] | 769 | |
| 770 | void EmitTentativeDefinition(const VarDecl *D); |
Mike Stump | f121677 | 2009-07-31 18:25:34 +0000 | [diff] [blame] | 771 | |
Douglas Gregor | 6fb745b | 2010-05-13 16:44:06 +0000 | [diff] [blame] | 772 | void EmitVTable(CXXRecordDecl *Class, bool DefinitionRequired); |
| 773 | |
John McCall | d46f985 | 2010-02-19 01:32:20 +0000 | [diff] [blame] | 774 | llvm::GlobalVariable::LinkageTypes |
| 775 | getFunctionLinkage(const FunctionDecl *FD); |
| 776 | |
John McCall | 8b24233 | 2010-05-25 04:30:21 +0000 | [diff] [blame] | 777 | void setFunctionLinkage(const FunctionDecl *FD, llvm::GlobalValue *V) { |
| 778 | V->setLinkage(getFunctionLinkage(FD)); |
| 779 | } |
| 780 | |
Anders Carlsson | 046c294 | 2010-04-17 20:15:18 +0000 | [diff] [blame] | 781 | /// getVTableLinkage - Return the appropriate linkage for the vtable, VTT, |
Douglas Gregor | 4b0f21c | 2010-01-06 20:27:16 +0000 | [diff] [blame] | 782 | /// and type information of the given class. |
Anders Carlsson | 3a717f7 | 2011-01-24 02:04:33 +0000 | [diff] [blame] | 783 | llvm::GlobalVariable::LinkageTypes getVTableLinkage(const CXXRecordDecl *RD); |
Ken Dyck | 687cc4a | 2010-01-26 13:48:07 +0000 | [diff] [blame] | 784 | |
| 785 | /// GetTargetTypeStoreSize - Return the store size, in character units, of |
| 786 | /// the given LLVM type. |
Chris Lattner | 2acc6e3 | 2011-07-18 04:24:23 +0000 | [diff] [blame] | 787 | CharUnits GetTargetTypeStoreSize(llvm::Type *Ty) const; |
Fariborz Jahanian | 354e712 | 2010-10-27 16:21:54 +0000 | [diff] [blame] | 788 | |
| 789 | /// GetLLVMLinkageVarDefinition - Returns LLVM linkage for a global |
| 790 | /// variable. |
| 791 | llvm::GlobalValue::LinkageTypes |
| 792 | GetLLVMLinkageVarDefinition(const VarDecl *D, |
| 793 | llvm::GlobalVariable *GV); |
| 794 | |
Anders Carlsson | 046c294 | 2010-04-17 20:15:18 +0000 | [diff] [blame] | 795 | std::vector<const CXXRecordDecl*> DeferredVTables; |
Rafael Espindola | bbf58bb | 2010-03-10 02:19:29 +0000 | [diff] [blame] | 796 | |
Julien Lerouge | 77f68bb | 2011-09-09 22:41:49 +0000 | [diff] [blame] | 797 | /// Emit all the global annotations. |
| 798 | void EmitGlobalAnnotations(); |
| 799 | |
| 800 | /// Emit an annotation string. |
| 801 | llvm::Constant *EmitAnnotationString(llvm::StringRef Str); |
| 802 | |
| 803 | /// Emit the annotation's translation unit. |
| 804 | llvm::Constant *EmitAnnotationUnit(SourceLocation Loc); |
| 805 | |
| 806 | /// Emit the annotation line number. |
| 807 | llvm::Constant *EmitAnnotationLineNo(SourceLocation L); |
| 808 | |
| 809 | /// EmitAnnotateAttr - Generate the llvm::ConstantStruct which contains the |
| 810 | /// annotation information for a given GlobalValue. The annotation struct is |
| 811 | /// {i8 *, i8 *, i8 *, i32}. The first field is a constant expression, the |
| 812 | /// GlobalValue being annotated. The second field is the constant string |
| 813 | /// created from the AnnotateAttr's annotation. The third field is a constant |
| 814 | /// string containing the name of the translation unit. The fourth field is |
| 815 | /// the line number in the file of the annotated value declaration. |
| 816 | llvm::Constant *EmitAnnotateAttr(llvm::GlobalValue *GV, |
| 817 | const AnnotateAttr *AA, |
| 818 | SourceLocation L); |
| 819 | |
| 820 | /// Add global annotations that are set on D, for the global GV. Those |
| 821 | /// annotations are emitted during finalization of the LLVM code. |
| 822 | void AddGlobalAnnotations(const ValueDecl *D, llvm::GlobalValue *GV); |
| 823 | |
Chris Lattner | 9cd4fe4 | 2007-12-02 07:09:19 +0000 | [diff] [blame] | 824 | private: |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 825 | llvm::GlobalValue *GetGlobalValue(StringRef Ref); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 826 | |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 827 | llvm::Constant *GetOrCreateLLVMFunction(StringRef MangledName, |
Chris Lattner | 2acc6e3 | 2011-07-18 04:24:23 +0000 | [diff] [blame] | 828 | llvm::Type *Ty, |
Anders Carlsson | 1faa89f | 2011-02-05 04:35:53 +0000 | [diff] [blame] | 829 | GlobalDecl D, |
John McCall | f85e193 | 2011-06-15 23:02:42 +0000 | [diff] [blame] | 830 | bool ForVTable, |
| 831 | llvm::Attributes ExtraAttrs = |
| 832 | llvm::Attribute::None); |
Chris Lattner | 686775d | 2011-07-20 06:58:45 +0000 | [diff] [blame] | 833 | llvm::Constant *GetOrCreateLLVMGlobal(StringRef MangledName, |
Chris Lattner | 2acc6e3 | 2011-07-18 04:24:23 +0000 | [diff] [blame] | 834 | llvm::PointerType *PTy, |
Rafael Espindola | c532b50 | 2011-01-18 21:07:57 +0000 | [diff] [blame] | 835 | const VarDecl *D, |
| 836 | bool UnnamedAddr = false); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 837 | |
Daniel Dunbar | 7c65e99 | 2009-04-14 08:05:55 +0000 | [diff] [blame] | 838 | /// SetCommonAttributes - Set attributes which are common to any |
| 839 | /// form of a global definition (alias, Objective-C method, |
| 840 | /// function, global variable). |
Daniel Dunbar | 7dbd819 | 2009-04-14 07:08:30 +0000 | [diff] [blame] | 841 | /// |
Daniel Dunbar | 7c65e99 | 2009-04-14 08:05:55 +0000 | [diff] [blame] | 842 | /// NOTE: This should only be called for definitions. |
| 843 | void SetCommonAttributes(const Decl *D, llvm::GlobalValue *GV); |
Daniel Dunbar | f80519b | 2008-09-04 23:41:35 +0000 | [diff] [blame] | 844 | |
Daniel Dunbar | 7c65e99 | 2009-04-14 08:05:55 +0000 | [diff] [blame] | 845 | /// SetFunctionDefinitionAttributes - Set attributes for a global definition. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 846 | void SetFunctionDefinitionAttributes(const FunctionDecl *D, |
Eli Friedman | c6c14d1 | 2009-05-26 01:22:57 +0000 | [diff] [blame] | 847 | llvm::GlobalValue *GV); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 848 | |
Daniel Dunbar | 7dbd819 | 2009-04-14 07:08:30 +0000 | [diff] [blame] | 849 | /// SetFunctionAttributes - Set function attributes for a function |
| 850 | /// declaration. |
Anders Carlsson | b2bcf1c | 2010-02-06 02:44:09 +0000 | [diff] [blame] | 851 | void SetFunctionAttributes(GlobalDecl GD, |
Eli Friedman | c6c14d1 | 2009-05-26 01:22:57 +0000 | [diff] [blame] | 852 | llvm::Function *F, |
| 853 | bool IsIncompleteFunction); |
Nuno Lopes | d4cbda6 | 2008-06-08 15:45:52 +0000 | [diff] [blame] | 854 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 855 | /// EmitGlobal - Emit code for a singal global function or var decl. Forward |
| 856 | /// declarations are emitted lazily. |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 857 | void EmitGlobal(GlobalDecl D); |
Daniel Dunbar | 41071de | 2008-08-15 23:26:23 +0000 | [diff] [blame] | 858 | |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 859 | void EmitGlobalDefinition(GlobalDecl D); |
Daniel Dunbar | d5d3180 | 2009-02-19 07:15:39 +0000 | [diff] [blame] | 860 | |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 861 | void EmitGlobalFunctionDefinition(GlobalDecl GD); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 862 | void EmitGlobalVarDefinition(const VarDecl *D); |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 863 | void EmitAliasDefinition(GlobalDecl GD); |
Daniel Dunbar | af05bb9 | 2008-08-26 08:29:31 +0000 | [diff] [blame] | 864 | void EmitObjCPropertyImplementations(const ObjCImplementationDecl *D); |
Fariborz Jahanian | 109dfc6 | 2010-04-28 21:28:56 +0000 | [diff] [blame] | 865 | void EmitObjCIvarInitializations(ObjCImplementationDecl *D); |
Fariborz Jahanian | 354e712 | 2010-10-27 16:21:54 +0000 | [diff] [blame] | 866 | |
Anders Carlsson | 95d4e5d | 2009-04-15 15:55:24 +0000 | [diff] [blame] | 867 | // C++ related functions. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 868 | |
John McCall | d46f985 | 2010-02-19 01:32:20 +0000 | [diff] [blame] | 869 | bool TryEmitDefinitionAsAlias(GlobalDecl Alias, GlobalDecl Target); |
John McCall | c0bf462 | 2010-02-23 00:48:20 +0000 | [diff] [blame] | 870 | bool TryEmitBaseDestructorAsAlias(const CXXDestructorDecl *D); |
John McCall | d46f985 | 2010-02-19 01:32:20 +0000 | [diff] [blame] | 871 | |
Anders Carlsson | 984e068 | 2009-04-01 00:58:25 +0000 | [diff] [blame] | 872 | void EmitNamespace(const NamespaceDecl *D); |
Anders Carlsson | 91e20dd | 2009-04-02 05:55:18 +0000 | [diff] [blame] | 873 | void EmitLinkageSpec(const LinkageSpecDecl *D); |
Anders Carlsson | 95d4e5d | 2009-04-15 15:55:24 +0000 | [diff] [blame] | 874 | |
| 875 | /// EmitCXXConstructors - Emit constructors (base, complete) from a |
| 876 | /// C++ constructor Decl. |
| 877 | void EmitCXXConstructors(const CXXConstructorDecl *D); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 878 | |
Anders Carlsson | 95d4e5d | 2009-04-15 15:55:24 +0000 | [diff] [blame] | 879 | /// EmitCXXConstructor - Emit a single constructor with the given type from |
| 880 | /// a C++ constructor Decl. |
| 881 | void EmitCXXConstructor(const CXXConstructorDecl *D, CXXCtorType Type); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 882 | |
| 883 | /// EmitCXXDestructors - Emit destructors (base, complete) from a |
Anders Carlsson | 27ae536 | 2009-04-17 01:58:57 +0000 | [diff] [blame] | 884 | /// C++ destructor Decl. |
| 885 | void EmitCXXDestructors(const CXXDestructorDecl *D); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 886 | |
Anders Carlsson | 27ae536 | 2009-04-17 01:58:57 +0000 | [diff] [blame] | 887 | /// EmitCXXDestructor - Emit a single destructor with the given type from |
| 888 | /// a C++ destructor Decl. |
| 889 | void EmitCXXDestructor(const CXXDestructorDecl *D, CXXDtorType Type); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 890 | |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 891 | /// EmitCXXGlobalInitFunc - Emit the function that initializes C++ globals. |
Anders Carlsson | 89ed31d | 2009-08-08 23:24:23 +0000 | [diff] [blame] | 892 | void EmitCXXGlobalInitFunc(); |
Eli Friedman | 6c6bda3 | 2010-01-08 00:50:11 +0000 | [diff] [blame] | 893 | |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 894 | /// EmitCXXGlobalDtorFunc - Emit the function that destroys C++ globals. |
| 895 | void EmitCXXGlobalDtorFunc(); |
| 896 | |
John McCall | 3030eb8 | 2010-11-06 09:44:32 +0000 | [diff] [blame] | 897 | void EmitCXXGlobalVarDeclInitFunc(const VarDecl *D, |
| 898 | llvm::GlobalVariable *Addr); |
Eli Friedman | 6c6bda3 | 2010-01-08 00:50:11 +0000 | [diff] [blame] | 899 | |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 900 | // FIXME: Hardcoding priority here is gross. |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 901 | void AddGlobalCtor(llvm::Function *Ctor, int Priority=65535); |
| 902 | void AddGlobalDtor(llvm::Function *Dtor, int Priority=65535); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 903 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 904 | /// EmitCtorList - Generates a global array of functions and priorities using |
| 905 | /// the given list and name. This array will have appending linkage and is |
| 906 | /// suitable for use as a LLVM constructor or destructor array. |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 907 | void EmitCtorList(const CtorList &Fns, const char *GlobalName); |
| 908 | |
Rafael Espindola | d1a5c31 | 2010-03-27 02:52:14 +0000 | [diff] [blame] | 909 | /// EmitFundamentalRTTIDescriptor - Emit the RTTI descriptors for the |
| 910 | /// given type. |
| 911 | void EmitFundamentalRTTIDescriptor(QualType Type); |
| 912 | |
| 913 | /// EmitFundamentalRTTIDescriptors - Emit the RTTI descriptors for the |
| 914 | /// builtin types. |
| 915 | void EmitFundamentalRTTIDescriptors(); |
| 916 | |
Daniel Dunbar | 4274581 | 2009-03-09 23:53:08 +0000 | [diff] [blame] | 917 | /// EmitDeferred - Emit any needed decls for which code generation |
| 918 | /// was deferred. |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 919 | void EmitDeferred(void); |
| 920 | |
Daniel Dunbar | 4274581 | 2009-03-09 23:53:08 +0000 | [diff] [blame] | 921 | /// EmitLLVMUsed - Emit the llvm.used metadata used to force |
| 922 | /// references to global which may otherwise be optimized out. |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 923 | void EmitLLVMUsed(void); |
Daniel Dunbar | f1968f2 | 2008-10-01 00:49:24 +0000 | [diff] [blame] | 924 | |
John McCall | 744016d | 2010-07-06 23:57:41 +0000 | [diff] [blame] | 925 | void EmitDeclMetadata(); |
| 926 | |
Nick Lewycky | 3dc0541 | 2011-05-05 00:08:20 +0000 | [diff] [blame] | 927 | /// EmitCoverageFile - Emit the llvm.gcov metadata used to tell LLVM where |
Nick Lewycky | 5ea4f44 | 2011-05-04 20:46:58 +0000 | [diff] [blame] | 928 | /// to emit the .gcno and .gcda files in a way that persists in .bc files. |
Nick Lewycky | 3dc0541 | 2011-05-05 00:08:20 +0000 | [diff] [blame] | 929 | void EmitCoverageFile(); |
Nick Lewycky | 5ea4f44 | 2011-05-04 20:46:58 +0000 | [diff] [blame] | 930 | |
Daniel Dunbar | 4274581 | 2009-03-09 23:53:08 +0000 | [diff] [blame] | 931 | /// MayDeferGeneration - Determine if the given decl can be emitted |
| 932 | /// lazily; this is only relevant for definitions. The given decl |
| 933 | /// must be either a function or var decl. |
Daniel Dunbar | 73241df | 2009-02-13 21:18:01 +0000 | [diff] [blame] | 934 | bool MayDeferGeneration(const ValueDecl *D); |
John McCall | b259383 | 2010-09-16 06:16:50 +0000 | [diff] [blame] | 935 | |
| 936 | /// SimplifyPersonality - Check whether we can use a "simpler", more |
| 937 | /// core exceptions personality function. |
| 938 | void SimplifyPersonality(); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 939 | }; |
| 940 | } // end namespace CodeGen |
| 941 | } // end namespace clang |
| 942 | |
| 943 | #endif |