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 | |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 17 | #include "clang/Basic/LangOptions.h" |
Dan Gohman | 4f8d123 | 2008-05-22 00:50:06 +0000 | [diff] [blame] | 18 | #include "clang/AST/Attr.h" |
Anders Carlsson | 2a131fb | 2009-05-05 04:44:02 +0000 | [diff] [blame] | 19 | #include "clang/AST/DeclCXX.h" |
Anders Carlsson | 0ff8baf | 2009-09-11 00:07:24 +0000 | [diff] [blame] | 20 | #include "clang/AST/DeclObjC.h" |
Chris Lattner | bd36064 | 2009-03-26 05:00:52 +0000 | [diff] [blame] | 21 | #include "CGBlocks.h" |
| 22 | #include "CGCall.h" |
Anders Carlsson | 95d4e5d | 2009-04-15 15:55:24 +0000 | [diff] [blame] | 23 | #include "CGCXX.h" |
Anders Carlsson | 461e326 | 2010-04-08 16:30:25 +0000 | [diff] [blame] | 24 | #include "CGVTables.h" |
Charles Davis | 3a811f1 | 2010-05-25 19:52:27 +0000 | [diff] [blame^] | 25 | #include "CGCXXABI.h" |
Chris Lattner | bd36064 | 2009-03-26 05:00:52 +0000 | [diff] [blame] | 26 | #include "CodeGenTypes.h" |
Anders Carlsson | 764d0c2 | 2009-11-13 04:25:07 +0000 | [diff] [blame] | 27 | #include "GlobalDecl.h" |
Anders Carlsson | b540491 | 2009-10-07 01:06:45 +0000 | [diff] [blame] | 28 | #include "Mangle.h" |
Owen Anderson | 6924382 | 2009-07-13 04:10:07 +0000 | [diff] [blame] | 29 | #include "llvm/Module.h" |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 30 | #include "llvm/ADT/DenseMap.h" |
Anders Carlsson | c9e2091 | 2007-08-21 00:21:21 +0000 | [diff] [blame] | 31 | #include "llvm/ADT/StringMap.h" |
Douglas Gregor | 6ec3668 | 2009-02-18 23:53:56 +0000 | [diff] [blame] | 32 | #include "llvm/ADT/StringSet.h" |
Rafael Espindola | 6a83670 | 2010-03-04 18:17:24 +0000 | [diff] [blame] | 33 | #include "llvm/ADT/SmallPtrSet.h" |
Chris Lattner | 35f38a2 | 2009-03-31 22:37:52 +0000 | [diff] [blame] | 34 | #include "llvm/Support/ValueHandle.h" |
Anders Carlsson | b723f75 | 2009-01-04 02:08:04 +0000 | [diff] [blame] | 35 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 36 | namespace llvm { |
| 37 | class Module; |
| 38 | class Constant; |
| 39 | class Function; |
Nate Begeman | 8bd4afe | 2008-04-19 04:17:09 +0000 | [diff] [blame] | 40 | class GlobalValue; |
Devang Patel | 7a4718e | 2007-10-31 20:01:01 +0000 | [diff] [blame] | 41 | class TargetData; |
Eli Friedman | ff4a2d9 | 2008-06-01 15:54:49 +0000 | [diff] [blame] | 42 | class FunctionType; |
Benjamin Kramer | f21efe9 | 2009-08-11 17:46:57 +0000 | [diff] [blame] | 43 | class LLVMContext; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 44 | } |
| 45 | |
| 46 | namespace clang { |
Anton Korobeynikov | 82d0a41 | 2010-01-10 12:58:08 +0000 | [diff] [blame] | 47 | class TargetCodeGenInfo; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 48 | class ASTContext; |
| 49 | class FunctionDecl; |
Daniel Dunbar | 90db882 | 2008-08-25 06:18:57 +0000 | [diff] [blame] | 50 | class IdentifierInfo; |
Chris Lattner | 391d77a | 2008-03-30 23:03:07 +0000 | [diff] [blame] | 51 | class ObjCMethodDecl; |
Anton Korobeynikov | 20ff310 | 2008-06-01 14:13:53 +0000 | [diff] [blame] | 52 | class ObjCImplementationDecl; |
| 53 | class ObjCCategoryImplDecl; |
| 54 | class ObjCProtocolDecl; |
Chris Lattner | eaf2bb8 | 2009-02-24 22:18:39 +0000 | [diff] [blame] | 55 | class ObjCEncodeExpr; |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 56 | class BlockExpr; |
Ken Dyck | 687cc4a | 2010-01-26 13:48:07 +0000 | [diff] [blame] | 57 | class CharUnits; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 58 | class Decl; |
Oliver Hunt | 2824723 | 2007-12-02 00:11:25 +0000 | [diff] [blame] | 59 | class Expr; |
Chris Lattner | 2c8569d | 2007-12-02 07:19:18 +0000 | [diff] [blame] | 60 | class Stmt; |
Daniel Dunbar | 1e04976 | 2008-08-10 20:25:57 +0000 | [diff] [blame] | 61 | class StringLiteral; |
Nate Begeman | 1a1d92a | 2008-04-20 20:38:08 +0000 | [diff] [blame] | 62 | class NamedDecl; |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 63 | class ValueDecl; |
Chris Lattner | 2b9d2ca | 2007-12-18 08:16:44 +0000 | [diff] [blame] | 64 | class VarDecl; |
Sebastian Redl | 43af76e | 2009-03-07 12:16:37 +0000 | [diff] [blame] | 65 | class LangOptions; |
Chandler Carruth | 2811ccf | 2009-11-12 17:24:48 +0000 | [diff] [blame] | 66 | class CodeGenOptions; |
Chris Lattner | fb97b03 | 2007-12-02 01:40:18 +0000 | [diff] [blame] | 67 | class Diagnostic; |
Nate Begeman | 8bd4afe | 2008-04-19 04:17:09 +0000 | [diff] [blame] | 68 | class AnnotateAttr; |
Anders Carlsson | 27ae536 | 2009-04-17 01:58:57 +0000 | [diff] [blame] | 69 | class CXXDestructorDecl; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 70 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 71 | namespace CodeGen { |
| 72 | |
Lauro Ramos Venancio | 8137335 | 2008-02-26 21:41:45 +0000 | [diff] [blame] | 73 | class CodeGenFunction; |
Sanjiv Gupta | e8b9f5b | 2008-05-08 08:54:20 +0000 | [diff] [blame] | 74 | class CGDebugInfo; |
Daniel Dunbar | af2f62c | 2008-08-13 00:59:25 +0000 | [diff] [blame] | 75 | class CGObjCRuntime; |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 76 | class MangleBuffer; |
Anders Carlsson | 4a6835e | 2009-09-10 23:38:47 +0000 | [diff] [blame] | 77 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 78 | /// CodeGenModule - This class organizes the cross-function state that is used |
| 79 | /// while generating LLVM code. |
Mike Stump | 2a99814 | 2009-03-04 18:17:45 +0000 | [diff] [blame] | 80 | class CodeGenModule : public BlockModule { |
Anders Carlsson | 8a219ce | 2009-02-24 04:21:31 +0000 | [diff] [blame] | 81 | CodeGenModule(const CodeGenModule&); // DO NOT IMPLEMENT |
| 82 | void operator=(const CodeGenModule&); // DO NOT IMPLEMENT |
| 83 | |
Chris Lattner | ca0017a | 2009-09-12 22:45:21 +0000 | [diff] [blame] | 84 | typedef std::vector<std::pair<llvm::Constant*, int> > CtorList; |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 85 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 86 | ASTContext &Context; |
Chris Lattner | 45e8cbd | 2007-11-28 05:34:05 +0000 | [diff] [blame] | 87 | const LangOptions &Features; |
Chandler Carruth | 2811ccf | 2009-11-12 17:24:48 +0000 | [diff] [blame] | 88 | const CodeGenOptions &CodeGenOpts; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 89 | llvm::Module &TheModule; |
Devang Patel | 7a4718e | 2007-10-31 20:01:01 +0000 | [diff] [blame] | 90 | const llvm::TargetData &TheTargetData; |
Anton Korobeynikov | 82d0a41 | 2010-01-10 12:58:08 +0000 | [diff] [blame] | 91 | mutable const TargetCodeGenInfo *TheTargetCodeGenInfo; |
Chris Lattner | fb97b03 | 2007-12-02 01:40:18 +0000 | [diff] [blame] | 92 | Diagnostic &Diags; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 93 | CodeGenTypes Types; |
Anders Carlsson | b540491 | 2009-10-07 01:06:45 +0000 | [diff] [blame] | 94 | |
Anders Carlsson | af44035 | 2010-03-23 04:11:45 +0000 | [diff] [blame] | 95 | /// VTables - Holds information about C++ vtables. |
| 96 | CodeGenVTables VTables; |
Douglas Gregor | e17ad2f | 2010-04-08 16:07:47 +0000 | [diff] [blame] | 97 | friend class CodeGenVTables; |
| 98 | |
Ted Kremenek | 815c78f | 2008-08-05 18:50:11 +0000 | [diff] [blame] | 99 | CGObjCRuntime* Runtime; |
Charles Davis | 3a811f1 | 2010-05-25 19:52:27 +0000 | [diff] [blame^] | 100 | CXXABI* ABI; |
Ted Kremenek | 815c78f | 2008-08-05 18:50:11 +0000 | [diff] [blame] | 101 | CGDebugInfo* DebugInfo; |
Daniel Dunbar | 9986eab | 2008-07-30 16:32:24 +0000 | [diff] [blame] | 102 | |
Rafael Espindola | 6a83670 | 2010-03-04 18:17:24 +0000 | [diff] [blame] | 103 | // WeakRefReferences - A set of references that have only been seen via |
| 104 | // a weakref so far. This is used to remove the weak of the reference if we ever |
| 105 | // see a direct reference or a definition. |
| 106 | llvm::SmallPtrSet<llvm::GlobalValue*, 10> WeakRefReferences; |
| 107 | |
Chris Lattner | 67b0052 | 2009-03-21 09:44:56 +0000 | [diff] [blame] | 108 | /// DeferredDecls - This contains all the decls which have definitions but |
| 109 | /// which are deferred for emission and therefore should only be output if |
| 110 | /// 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] | 111 | /// not been referenced yet. |
| 112 | llvm::StringMap<GlobalDecl> DeferredDecls; |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 113 | |
Chris Lattner | 67b0052 | 2009-03-21 09:44:56 +0000 | [diff] [blame] | 114 | /// DeferredDeclsToEmit - This is a list of deferred decls which we have seen |
| 115 | /// that *are* actually referenced. These get code generated when the module |
| 116 | /// is done. |
Anders Carlsson | 2a131fb | 2009-05-05 04:44:02 +0000 | [diff] [blame] | 117 | std::vector<GlobalDecl> DeferredDeclsToEmit; |
Daniel Dunbar | 03f5ad9 | 2009-04-15 22:08:45 +0000 | [diff] [blame] | 118 | |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 119 | /// LLVMUsed - List of global values which are required to be |
| 120 | /// present in the object file; bitcast to i8*. This is used for |
| 121 | /// forcing visibility of symbols which may otherwise be optimized |
| 122 | /// out. |
Chris Lattner | 35f38a2 | 2009-03-31 22:37:52 +0000 | [diff] [blame] | 123 | std::vector<llvm::WeakVH> LLVMUsed; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 124 | |
| 125 | /// GlobalCtors - Store the list of global constructors and their respective |
| 126 | /// priorities to be emitted when the translation unit is complete. |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 127 | CtorList GlobalCtors; |
| 128 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 129 | /// GlobalDtors - Store the list of global destructors and their respective |
| 130 | /// priorities to be emitted when the translation unit is complete. |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 131 | CtorList GlobalDtors; |
| 132 | |
Nate Begeman | 532485c | 2008-04-18 23:43:57 +0000 | [diff] [blame] | 133 | std::vector<llvm::Constant*> Annotations; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 134 | |
Anders Carlsson | c9e2091 | 2007-08-21 00:21:21 +0000 | [diff] [blame] | 135 | llvm::StringMap<llvm::Constant*> CFConstantStringMap; |
Chris Lattner | 45e8cbd | 2007-11-28 05:34:05 +0000 | [diff] [blame] | 136 | llvm::StringMap<llvm::Constant*> ConstantStringMap; |
Fariborz Jahanian | 65ad5a4 | 2010-04-18 21:01:23 +0000 | [diff] [blame] | 137 | llvm::DenseMap<const Decl*, llvm::Value*> StaticLocalDeclMap; |
Daniel Dunbar | 3e9df99 | 2008-08-23 18:37:06 +0000 | [diff] [blame] | 138 | |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 139 | /// CXXGlobalInits - Global variables with initializers that need to run |
Anders Carlsson | 89ed31d | 2009-08-08 23:24:23 +0000 | [diff] [blame] | 140 | /// before main. |
Eli Friedman | 6c6bda3 | 2010-01-08 00:50:11 +0000 | [diff] [blame] | 141 | std::vector<llvm::Constant*> CXXGlobalInits; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 142 | |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 143 | /// CXXGlobalDtors - Global destructor functions and arguments that need to |
| 144 | /// run on termination. |
| 145 | std::vector<std::pair<llvm::Constant*,llvm::Constant*> > CXXGlobalDtors; |
| 146 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 147 | /// CFConstantStringClassRef - Cached reference to the class for constant |
| 148 | /// 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] | 149 | llvm::Constant *CFConstantStringClassRef; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 150 | |
Fariborz Jahanian | 2bb5dda | 2010-04-23 17:41:07 +0000 | [diff] [blame] | 151 | /// NSConstantStringClassRef - Cached reference to the class for constant |
| 152 | /// strings. This value has type int * but is actually an Obj-C class pointer. |
| 153 | llvm::Constant *NSConstantStringClassRef; |
| 154 | |
David Chisnall | 0d13f6f | 2010-01-23 02:40:42 +0000 | [diff] [blame] | 155 | /// Lazily create the Objective-C runtime |
| 156 | void createObjCRuntime(); |
Charles Davis | 3a811f1 | 2010-05-25 19:52:27 +0000 | [diff] [blame^] | 157 | /// Lazily create the C++ ABI |
| 158 | void createCXXABI(); |
David Chisnall | 0d13f6f | 2010-01-23 02:40:42 +0000 | [diff] [blame] | 159 | |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 160 | llvm::LLVMContext &VMContext; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 161 | public: |
Chandler Carruth | 2811ccf | 2009-11-12 17:24:48 +0000 | [diff] [blame] | 162 | CodeGenModule(ASTContext &C, const CodeGenOptions &CodeGenOpts, |
John McCall | 468ec6c | 2010-03-04 04:29:44 +0000 | [diff] [blame] | 163 | llvm::Module &M, const llvm::TargetData &TD, Diagnostic &Diags); |
Ted Kremenek | 815c78f | 2008-08-05 18:50:11 +0000 | [diff] [blame] | 164 | |
Chris Lattner | 2b94fe3 | 2008-03-01 08:45:05 +0000 | [diff] [blame] | 165 | ~CodeGenModule(); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 166 | |
Ted Kremenek | 815c78f | 2008-08-05 18:50:11 +0000 | [diff] [blame] | 167 | /// Release - Finalize LLVM code generation. |
| 168 | void Release(); |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 169 | |
| 170 | /// getObjCRuntime() - Return a reference to the configured |
| 171 | /// Objective-C runtime. |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 172 | CGObjCRuntime &getObjCRuntime() { |
David Chisnall | 0d13f6f | 2010-01-23 02:40:42 +0000 | [diff] [blame] | 173 | if (!Runtime) createObjCRuntime(); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 174 | return *Runtime; |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 175 | } |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 176 | |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 177 | /// hasObjCRuntime() - Return true iff an Objective-C runtime has |
| 178 | /// been configured. |
| 179 | bool hasObjCRuntime() { return !!Runtime; } |
| 180 | |
Charles Davis | 3a811f1 | 2010-05-25 19:52:27 +0000 | [diff] [blame^] | 181 | /// getCXXABI() - Return a reference to the configured |
| 182 | /// C++ ABI. |
| 183 | CXXABI &getCXXABI() { |
| 184 | if (!ABI) createCXXABI(); |
| 185 | return *ABI; |
| 186 | } |
| 187 | |
| 188 | /// hasCXXABI() - Return true iff a C++ ABI has been configured. |
| 189 | bool hasCXXABI() { return !!ABI; } |
| 190 | |
Fariborz Jahanian | 63326a5 | 2010-04-19 18:15:02 +0000 | [diff] [blame] | 191 | llvm::Value *getStaticLocalDeclAddress(const VarDecl *VD) { |
Fariborz Jahanian | 65ad5a4 | 2010-04-18 21:01:23 +0000 | [diff] [blame] | 192 | return StaticLocalDeclMap[VD]; |
| 193 | } |
Fariborz Jahanian | 63326a5 | 2010-04-19 18:15:02 +0000 | [diff] [blame] | 194 | void setStaticLocalDeclAddress(const VarDecl *D, |
Fariborz Jahanian | 65ad5a4 | 2010-04-18 21:01:23 +0000 | [diff] [blame] | 195 | llvm::GlobalVariable *GV) { |
| 196 | StaticLocalDeclMap[D] = GV; |
| 197 | } |
| 198 | |
Sanjiv Gupta | e8b9f5b | 2008-05-08 08:54:20 +0000 | [diff] [blame] | 199 | CGDebugInfo *getDebugInfo() { return DebugInfo; } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 200 | ASTContext &getContext() const { return Context; } |
Chandler Carruth | 2811ccf | 2009-11-12 17:24:48 +0000 | [diff] [blame] | 201 | const CodeGenOptions &getCodeGenOpts() const { return CodeGenOpts; } |
Chris Lattner | 45e8cbd | 2007-11-28 05:34:05 +0000 | [diff] [blame] | 202 | const LangOptions &getLangOptions() const { return Features; } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 203 | llvm::Module &getModule() const { return TheModule; } |
| 204 | CodeGenTypes &getTypes() { return Types; } |
Charles Davis | 3a811f1 | 2010-05-25 19:52:27 +0000 | [diff] [blame^] | 205 | MangleContext &getMangleContext() { |
| 206 | if (!ABI) createCXXABI(); |
| 207 | return ABI->getMangleContext(); |
| 208 | } |
Anders Carlsson | af44035 | 2010-03-23 04:11:45 +0000 | [diff] [blame] | 209 | CodeGenVTables &getVTables() { return VTables; } |
Chris Lattner | fb97b03 | 2007-12-02 01:40:18 +0000 | [diff] [blame] | 210 | Diagnostic &getDiags() const { return Diags; } |
Chris Lattner | 8f92528 | 2008-01-03 06:36:51 +0000 | [diff] [blame] | 211 | const llvm::TargetData &getTargetData() const { return TheTargetData; } |
Owen Anderson | a1cf15f | 2009-07-14 23:10:40 +0000 | [diff] [blame] | 212 | llvm::LLVMContext &getLLVMContext() { return VMContext; } |
Anton Korobeynikov | 82d0a41 | 2010-01-10 12:58:08 +0000 | [diff] [blame] | 213 | const TargetCodeGenInfo &getTargetCodeGenInfo() const; |
John McCall | 6374c33 | 2010-03-06 00:35:14 +0000 | [diff] [blame] | 214 | bool isTargetDarwin() const; |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 215 | |
Daniel Dunbar | 04d4078 | 2009-04-14 06:00:08 +0000 | [diff] [blame] | 216 | /// getDeclVisibilityMode - Compute the visibility of the decl \arg D. |
| 217 | LangOptions::VisibilityMode getDeclVisibilityMode(const Decl *D) const; |
| 218 | |
| 219 | /// setGlobalVisibility - Set the visibility for the given LLVM |
| 220 | /// GlobalValue. |
| 221 | void setGlobalVisibility(llvm::GlobalValue *GV, const Decl *D) const; |
| 222 | |
John McCall | d46f985 | 2010-02-19 01:32:20 +0000 | [diff] [blame] | 223 | llvm::Constant *GetAddrOfGlobal(GlobalDecl GD) { |
| 224 | if (isa<CXXConstructorDecl>(GD.getDecl())) |
| 225 | return GetAddrOfCXXConstructor(cast<CXXConstructorDecl>(GD.getDecl()), |
| 226 | GD.getCtorType()); |
| 227 | else if (isa<CXXDestructorDecl>(GD.getDecl())) |
| 228 | return GetAddrOfCXXDestructor(cast<CXXDestructorDecl>(GD.getDecl()), |
| 229 | GD.getDtorType()); |
| 230 | else if (isa<FunctionDecl>(GD.getDecl())) |
| 231 | return GetAddrOfFunction(GD); |
| 232 | else |
| 233 | return GetAddrOfGlobalVar(cast<VarDecl>(GD.getDecl())); |
| 234 | } |
| 235 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 236 | /// GetAddrOfGlobalVar - Return the llvm::Constant for the address of the |
Chris Lattner | 570585c | 2009-03-21 09:16:30 +0000 | [diff] [blame] | 237 | /// given global variable. If Ty is non-null and if the global doesn't exist, |
| 238 | /// then it will be greated with the specified type instead of whatever the |
| 239 | /// normal requested type would be. |
| 240 | llvm::Constant *GetAddrOfGlobalVar(const VarDecl *D, |
| 241 | const llvm::Type *Ty = 0); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 242 | |
Chris Lattner | 3480950 | 2009-03-21 08:53:37 +0000 | [diff] [blame] | 243 | /// GetAddrOfFunction - Return the address of the given function. If Ty is |
| 244 | /// non-null, then this function will use the specified type if it has to |
| 245 | /// create it. |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 246 | llvm::Constant *GetAddrOfFunction(GlobalDecl GD, |
Chris Lattner | 3480950 | 2009-03-21 08:53:37 +0000 | [diff] [blame] | 247 | const llvm::Type *Ty = 0); |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 248 | |
Anders Carlsson | 1d7088d | 2009-12-17 07:09:17 +0000 | [diff] [blame] | 249 | /// GetAddrOfRTTIDescriptor - Get the address of the RTTI descriptor |
| 250 | /// for the given type. |
John McCall | 9dffe6f | 2010-04-30 01:15:21 +0000 | [diff] [blame] | 251 | llvm::Constant *GetAddrOfRTTIDescriptor(QualType Ty, bool ForEH = false); |
Anders Carlsson | 31b7f52 | 2009-12-11 02:46:30 +0000 | [diff] [blame] | 252 | |
Anders Carlsson | 19879c9 | 2010-03-23 17:17:29 +0000 | [diff] [blame] | 253 | /// GetAddrOfThunk - Get the address of the thunk for the given global decl. |
| 254 | llvm::Constant *GetAddrOfThunk(GlobalDecl GD, const ThunkInfo &Thunk); |
| 255 | |
Rafael Espindola | 6a83670 | 2010-03-04 18:17:24 +0000 | [diff] [blame] | 256 | /// GetWeakRefReference - Get a reference to the target of VD. |
| 257 | llvm::Constant *GetWeakRefReference(const ValueDecl *VD); |
| 258 | |
Anders Carlsson | bb7e17b | 2010-01-31 01:36:53 +0000 | [diff] [blame] | 259 | /// GetNonVirtualBaseClassOffset - Returns the offset from a derived class to |
Anders Carlsson | e04d45e | 2010-04-24 21:27:51 +0000 | [diff] [blame] | 260 | /// a class. Returns null if the offset is 0. |
Anders Carlsson | a04efdf | 2010-04-24 21:23:59 +0000 | [diff] [blame] | 261 | llvm::Constant * |
| 262 | GetNonVirtualBaseClassOffset(const CXXRecordDecl *ClassDecl, |
| 263 | const CXXBaseSpecifierArray &BasePath); |
| 264 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 265 | /// GetStringForStringLiteral - Return the appropriate bytes for a string |
| 266 | /// literal, properly padded to match the literal type. If only the address of |
| 267 | /// a constant is needed consider using GetAddrOfConstantStringLiteral. |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 268 | std::string GetStringForStringLiteral(const StringLiteral *E); |
| 269 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 270 | /// GetAddrOfConstantCFString - Return a pointer to a constant CFString object |
| 271 | /// for the given string. |
Steve Naroff | 8d4141f | 2009-04-01 13:55:36 +0000 | [diff] [blame] | 272 | llvm::Constant *GetAddrOfConstantCFString(const StringLiteral *Literal); |
Fariborz Jahanian | 33e982b | 2010-04-22 20:26:39 +0000 | [diff] [blame] | 273 | |
| 274 | /// GetAddrOfConstantNSString - Return a pointer to a constant NSString object |
| 275 | /// for the given string. |
| 276 | llvm::Constant *GetAddrOfConstantNSString(const StringLiteral *Literal); |
Chris Lattner | a7ad98f | 2008-02-11 00:02:17 +0000 | [diff] [blame] | 277 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 278 | /// GetAddrOfConstantStringFromLiteral - Return a pointer to a constant array |
| 279 | /// for the given string literal. |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 280 | llvm::Constant *GetAddrOfConstantStringFromLiteral(const StringLiteral *S); |
Daniel Dunbar | 1e04976 | 2008-08-10 20:25:57 +0000 | [diff] [blame] | 281 | |
Chris Lattner | eaf2bb8 | 2009-02-24 22:18:39 +0000 | [diff] [blame] | 282 | /// GetAddrOfConstantStringFromObjCEncode - Return a pointer to a constant |
| 283 | /// array for the given ObjCEncodeExpr node. |
| 284 | llvm::Constant *GetAddrOfConstantStringFromObjCEncode(const ObjCEncodeExpr *); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 285 | |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 286 | /// GetAddrOfConstantString - Returns a pointer to a character array |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 287 | /// containing the literal. This contents are exactly that of the given |
| 288 | /// string, i.e. it will not be null terminated automatically; see |
| 289 | /// GetAddrOfConstantCString. Note that whether the result is actually a |
| 290 | /// pointer to an LLVM constant depends on Feature.WriteableStrings. |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 291 | /// |
| 292 | /// The result has pointer to array type. |
Daniel Dunbar | 5fabf9d | 2008-10-17 21:56:50 +0000 | [diff] [blame] | 293 | /// |
| 294 | /// \param GlobalName If provided, the name to use for the global |
| 295 | /// (if one is created). |
| 296 | llvm::Constant *GetAddrOfConstantString(const std::string& str, |
| 297 | const char *GlobalName=0); |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 298 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 299 | /// GetAddrOfConstantCString - Returns a pointer to a character array |
| 300 | /// containing the literal and a terminating '\0' character. The result has |
| 301 | /// pointer to array type. |
Daniel Dunbar | 5fabf9d | 2008-10-17 21:56:50 +0000 | [diff] [blame] | 302 | /// |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 303 | /// \param GlobalName If provided, the name to use for the global (if one is |
| 304 | /// created). |
Daniel Dunbar | 5fabf9d | 2008-10-17 21:56:50 +0000 | [diff] [blame] | 305 | llvm::Constant *GetAddrOfConstantCString(const std::string &str, |
| 306 | const char *GlobalName=0); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 307 | |
Anders Carlsson | 363c184 | 2009-04-16 23:57:24 +0000 | [diff] [blame] | 308 | /// GetAddrOfCXXConstructor - Return the address of the constructor of the |
| 309 | /// given type. |
John McCall | d46f985 | 2010-02-19 01:32:20 +0000 | [diff] [blame] | 310 | llvm::GlobalValue *GetAddrOfCXXConstructor(const CXXConstructorDecl *D, |
| 311 | CXXCtorType Type); |
Anders Carlsson | 27ae536 | 2009-04-17 01:58:57 +0000 | [diff] [blame] | 312 | |
| 313 | /// GetAddrOfCXXDestructor - Return the address of the constructor of the |
| 314 | /// given type. |
John McCall | d46f985 | 2010-02-19 01:32:20 +0000 | [diff] [blame] | 315 | llvm::GlobalValue *GetAddrOfCXXDestructor(const CXXDestructorDecl *D, |
| 316 | CXXDtorType Type); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 317 | |
Daniel Dunbar | 41071de | 2008-08-15 23:26:23 +0000 | [diff] [blame] | 318 | /// getBuiltinLibFunction - Given a builtin id for a function like |
| 319 | /// "__builtin_fabsf", return a Function* for "fabsf". |
Daniel Dunbar | 34771b5 | 2009-09-14 04:33:21 +0000 | [diff] [blame] | 320 | llvm::Value *getBuiltinLibFunction(const FunctionDecl *FD, |
| 321 | unsigned BuiltinID); |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 322 | |
Mon P Wang | 3ecd785 | 2010-04-04 03:10:52 +0000 | [diff] [blame] | 323 | llvm::Function *getMemCpyFn(const llvm::Type *DestType, |
| 324 | const llvm::Type *SrcType, |
| 325 | const llvm::Type *SizeType); |
| 326 | |
| 327 | llvm::Function *getMemMoveFn(const llvm::Type *DestType, |
| 328 | const llvm::Type *SrcType, |
| 329 | const llvm::Type *SizeType); |
| 330 | |
| 331 | llvm::Function *getMemSetFn(const llvm::Type *DestType, |
| 332 | const llvm::Type *SizeType); |
| 333 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 334 | llvm::Function *getIntrinsic(unsigned IID, const llvm::Type **Tys = 0, |
Chris Lattner | 7acda7c | 2007-12-18 00:25:38 +0000 | [diff] [blame] | 335 | unsigned NumTys = 0); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 336 | |
Daniel Dunbar | 41071de | 2008-08-15 23:26:23 +0000 | [diff] [blame] | 337 | /// EmitTopLevelDecl - Emit code for a single top level declaration. |
| 338 | void EmitTopLevelDecl(Decl *D); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 339 | |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 340 | /// AddUsedGlobal - Add a global which should be forced to be |
| 341 | /// present in the object file; these are emitted to the llvm.used |
| 342 | /// metadata global. |
| 343 | void AddUsedGlobal(llvm::GlobalValue *GV); |
| 344 | |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 345 | void AddAnnotation(llvm::Constant *C) { Annotations.push_back(C); } |
| 346 | |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 347 | /// AddCXXDtorEntry - Add a destructor and object to add to the C++ global |
| 348 | /// destructor function. |
| 349 | void AddCXXDtorEntry(llvm::Constant *DtorFn, llvm::Constant *Object); |
| 350 | |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 351 | /// CreateRuntimeFunction - Create a new runtime function with the specified |
| 352 | /// type and name. |
| 353 | llvm::Constant *CreateRuntimeFunction(const llvm::FunctionType *Ty, |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 354 | llvm::StringRef Name); |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 355 | /// CreateRuntimeVariable - Create a new runtime global variable with the |
| 356 | /// specified type and name. |
| 357 | llvm::Constant *CreateRuntimeVariable(const llvm::Type *Ty, |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 358 | llvm::StringRef Name); |
Daniel Dunbar | f1968f2 | 2008-10-01 00:49:24 +0000 | [diff] [blame] | 359 | |
Chris Lattner | 5ad0f67 | 2009-04-01 02:08:13 +0000 | [diff] [blame] | 360 | void UpdateCompletedType(const TagDecl *TD) { |
| 361 | // Make sure that this type is translated. |
| 362 | Types.UpdateCompletedType(TD); |
| 363 | } |
Daniel Dunbar | d60f2fb | 2009-02-17 18:43:32 +0000 | [diff] [blame] | 364 | |
| 365 | /// EmitConstantExpr - Try to emit the given expression as a |
| 366 | /// constant; returns 0 if the expression cannot be emitted as a |
| 367 | /// constant. |
Anders Carlsson | e9352cc | 2009-04-08 04:48:15 +0000 | [diff] [blame] | 368 | llvm::Constant *EmitConstantExpr(const Expr *E, QualType DestType, |
| 369 | CodeGenFunction *CGF = 0); |
Daniel Dunbar | d60f2fb | 2009-02-17 18:43:32 +0000 | [diff] [blame] | 370 | |
Eli Friedman | 0f59312 | 2009-04-13 21:47:26 +0000 | [diff] [blame] | 371 | /// EmitNullConstant - Return the result of value-initializing the given |
| 372 | /// type, i.e. a null expression of the given type. This is usually, |
| 373 | /// but not always, an LLVM null constant. |
| 374 | llvm::Constant *EmitNullConstant(QualType T); |
| 375 | |
Nate Begeman | 8bd4afe | 2008-04-19 04:17:09 +0000 | [diff] [blame] | 376 | llvm::Constant *EmitAnnotateAttr(llvm::GlobalValue *GV, |
| 377 | const AnnotateAttr *AA, unsigned LineNo); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 378 | |
Anders Carlsson | 45147d0 | 2010-02-02 03:37:46 +0000 | [diff] [blame] | 379 | llvm::Constant *EmitPointerToDataMember(const FieldDecl *FD); |
| 380 | |
Daniel Dunbar | 488e993 | 2008-08-16 00:56:44 +0000 | [diff] [blame] | 381 | /// ErrorUnsupported - Print out an error that codegen doesn't support the |
Daniel Dunbar | 90df4b6 | 2008-09-04 03:43:08 +0000 | [diff] [blame] | 382 | /// specified stmt yet. |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 383 | /// \param OmitOnError - If true, then this error should only be emitted if no |
| 384 | /// other errors have been reported. |
| 385 | void ErrorUnsupported(const Stmt *S, const char *Type, |
Daniel Dunbar | 90df4b6 | 2008-09-04 03:43:08 +0000 | [diff] [blame] | 386 | bool OmitOnError=false); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 387 | |
Daniel Dunbar | 488e993 | 2008-08-16 00:56:44 +0000 | [diff] [blame] | 388 | /// ErrorUnsupported - Print out an error that codegen doesn't support the |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 389 | /// specified decl yet. |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 390 | /// \param OmitOnError - If true, then this error should only be emitted if no |
| 391 | /// other errors have been reported. |
Daniel Dunbar | 90df4b6 | 2008-09-04 03:43:08 +0000 | [diff] [blame] | 392 | void ErrorUnsupported(const Decl *D, const char *Type, |
| 393 | bool OmitOnError=false); |
Dan Gohman | 4f8d123 | 2008-05-22 00:50:06 +0000 | [diff] [blame] | 394 | |
Daniel Dunbar | 0e4f40e | 2009-04-17 00:48:04 +0000 | [diff] [blame] | 395 | /// SetInternalFunctionAttributes - Set the attributes on the LLVM |
| 396 | /// function for the given decl and function info. This applies |
| 397 | /// attributes necessary for handling the ABI as well as user |
| 398 | /// specified attributes like section. |
| 399 | void SetInternalFunctionAttributes(const Decl *D, llvm::Function *F, |
| 400 | const CGFunctionInfo &FI); |
Daniel Dunbar | f80519b | 2008-09-04 23:41:35 +0000 | [diff] [blame] | 401 | |
Daniel Dunbar | 7dbd819 | 2009-04-14 07:08:30 +0000 | [diff] [blame] | 402 | /// SetLLVMFunctionAttributes - Set the LLVM function attributes |
| 403 | /// (sext, zext, etc). |
| 404 | void SetLLVMFunctionAttributes(const Decl *D, |
| 405 | const CGFunctionInfo &Info, |
| 406 | llvm::Function *F); |
Daniel Dunbar | b768807 | 2008-09-10 00:41:16 +0000 | [diff] [blame] | 407 | |
Daniel Dunbar | 7c65e99 | 2009-04-14 08:05:55 +0000 | [diff] [blame] | 408 | /// SetLLVMFunctionAttributesForDefinition - Set the LLVM function attributes |
| 409 | /// which only apply to a function definintion. |
| 410 | void SetLLVMFunctionAttributesForDefinition(const Decl *D, llvm::Function *F); |
| 411 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 412 | /// ReturnTypeUsesSret - Return true iff the given type uses 'sret' when used |
| 413 | /// as a return type. |
Daniel Dunbar | 88b5396 | 2009-02-02 22:03:45 +0000 | [diff] [blame] | 414 | bool ReturnTypeUsesSret(const CGFunctionInfo &FI); |
Daniel Dunbar | b768807 | 2008-09-10 00:41:16 +0000 | [diff] [blame] | 415 | |
Daniel Dunbar | ca6408c | 2009-09-12 00:59:20 +0000 | [diff] [blame] | 416 | /// ConstructAttributeList - Get the LLVM attributes and calling convention to |
| 417 | /// use for a particular function type. |
| 418 | /// |
| 419 | /// \param Info - The function type information. |
| 420 | /// \param TargetDecl - The decl these attributes are being constructed |
| 421 | /// for. If supplied the attributes applied to this decl may contribute to the |
| 422 | /// function attributes and calling convention. |
| 423 | /// \param PAL [out] - On return, the attribute list to use. |
| 424 | /// \param CallingConv [out] - On return, the LLVM calling convention to use. |
Daniel Dunbar | 88b5396 | 2009-02-02 22:03:45 +0000 | [diff] [blame] | 425 | void ConstructAttributeList(const CGFunctionInfo &Info, |
| 426 | const Decl *TargetDecl, |
Daniel Dunbar | ca6408c | 2009-09-12 00:59:20 +0000 | [diff] [blame] | 427 | AttributeListType &PAL, |
| 428 | unsigned &CallingConv); |
Daniel Dunbar | b768807 | 2008-09-10 00:41:16 +0000 | [diff] [blame] | 429 | |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 430 | void getMangledName(MangleBuffer &Buffer, GlobalDecl D); |
| 431 | void getMangledName(MangleBuffer &Buffer, const NamedDecl *ND); |
Douglas Gregor | 35415f5 | 2010-05-25 17:04:15 +0000 | [diff] [blame] | 432 | void getMangledName(MangleBuffer &Buffer, const BlockDecl *BD); |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 433 | void getMangledCXXCtorName(MangleBuffer &Buffer, |
| 434 | const CXXConstructorDecl *D, |
| 435 | CXXCtorType Type); |
| 436 | void getMangledCXXDtorName(MangleBuffer &Buffer, |
| 437 | const CXXDestructorDecl *D, |
| 438 | CXXDtorType Type); |
Douglas Gregor | b6c8c8b | 2009-04-21 17:11:58 +0000 | [diff] [blame] | 439 | |
| 440 | void EmitTentativeDefinition(const VarDecl *D); |
Mike Stump | f121677 | 2009-07-31 18:25:34 +0000 | [diff] [blame] | 441 | |
Douglas Gregor | 6fb745b | 2010-05-13 16:44:06 +0000 | [diff] [blame] | 442 | void EmitVTable(CXXRecordDecl *Class, bool DefinitionRequired); |
| 443 | |
Chris Lattner | 44b0bc0 | 2009-04-14 06:04:17 +0000 | [diff] [blame] | 444 | enum GVALinkage { |
| 445 | GVA_Internal, |
Chris Lattner | 86daeee | 2009-04-14 16:44:36 +0000 | [diff] [blame] | 446 | GVA_C99Inline, |
| 447 | GVA_CXXInline, |
Douglas Gregor | 1fd2dd1 | 2009-06-29 22:39:32 +0000 | [diff] [blame] | 448 | GVA_StrongExternal, |
Douglas Gregor | 8f51a4f | 2010-03-13 18:23:07 +0000 | [diff] [blame] | 449 | GVA_TemplateInstantiation, |
| 450 | GVA_ExplicitTemplateInstantiation |
Chris Lattner | 44b0bc0 | 2009-04-14 06:04:17 +0000 | [diff] [blame] | 451 | }; |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 452 | |
John McCall | d46f985 | 2010-02-19 01:32:20 +0000 | [diff] [blame] | 453 | llvm::GlobalVariable::LinkageTypes |
| 454 | getFunctionLinkage(const FunctionDecl *FD); |
| 455 | |
John McCall | 8b24233 | 2010-05-25 04:30:21 +0000 | [diff] [blame] | 456 | void setFunctionLinkage(const FunctionDecl *FD, llvm::GlobalValue *V) { |
| 457 | V->setLinkage(getFunctionLinkage(FD)); |
| 458 | } |
| 459 | |
Anders Carlsson | 046c294 | 2010-04-17 20:15:18 +0000 | [diff] [blame] | 460 | /// getVTableLinkage - Return the appropriate linkage for the vtable, VTT, |
Douglas Gregor | 4b0f21c | 2010-01-06 20:27:16 +0000 | [diff] [blame] | 461 | /// and type information of the given class. |
Douglas Gregor | dffb801 | 2010-01-06 22:00:56 +0000 | [diff] [blame] | 462 | static llvm::GlobalVariable::LinkageTypes |
Anders Carlsson | 046c294 | 2010-04-17 20:15:18 +0000 | [diff] [blame] | 463 | getVTableLinkage(const CXXRecordDecl *RD); |
Ken Dyck | 687cc4a | 2010-01-26 13:48:07 +0000 | [diff] [blame] | 464 | |
| 465 | /// GetTargetTypeStoreSize - Return the store size, in character units, of |
| 466 | /// the given LLVM type. |
| 467 | CharUnits GetTargetTypeStoreSize(const llvm::Type *Ty) const; |
Rafael Espindola | bbf58bb | 2010-03-10 02:19:29 +0000 | [diff] [blame] | 468 | |
Anders Carlsson | 046c294 | 2010-04-17 20:15:18 +0000 | [diff] [blame] | 469 | std::vector<const CXXRecordDecl*> DeferredVTables; |
Rafael Espindola | bbf58bb | 2010-03-10 02:19:29 +0000 | [diff] [blame] | 470 | |
Chris Lattner | 9cd4fe4 | 2007-12-02 07:09:19 +0000 | [diff] [blame] | 471 | private: |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 472 | llvm::GlobalValue *GetGlobalValue(llvm::StringRef Ref); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 473 | |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 474 | llvm::Constant *GetOrCreateLLVMFunction(llvm::StringRef MangledName, |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 475 | const llvm::Type *Ty, |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 476 | GlobalDecl D); |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 477 | llvm::Constant *GetOrCreateLLVMGlobal(llvm::StringRef MangledName, |
Chris Lattner | 74391b4 | 2009-03-22 21:03:39 +0000 | [diff] [blame] | 478 | const llvm::PointerType *PTy, |
| 479 | const VarDecl *D); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 480 | |
Daniel Dunbar | 7c65e99 | 2009-04-14 08:05:55 +0000 | [diff] [blame] | 481 | /// SetCommonAttributes - Set attributes which are common to any |
| 482 | /// form of a global definition (alias, Objective-C method, |
| 483 | /// function, global variable). |
Daniel Dunbar | 7dbd819 | 2009-04-14 07:08:30 +0000 | [diff] [blame] | 484 | /// |
Daniel Dunbar | 7c65e99 | 2009-04-14 08:05:55 +0000 | [diff] [blame] | 485 | /// NOTE: This should only be called for definitions. |
| 486 | void SetCommonAttributes(const Decl *D, llvm::GlobalValue *GV); |
Daniel Dunbar | f80519b | 2008-09-04 23:41:35 +0000 | [diff] [blame] | 487 | |
Daniel Dunbar | 7c65e99 | 2009-04-14 08:05:55 +0000 | [diff] [blame] | 488 | /// SetFunctionDefinitionAttributes - Set attributes for a global definition. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 489 | void SetFunctionDefinitionAttributes(const FunctionDecl *D, |
Eli Friedman | c6c14d1 | 2009-05-26 01:22:57 +0000 | [diff] [blame] | 490 | llvm::GlobalValue *GV); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 491 | |
Daniel Dunbar | 7dbd819 | 2009-04-14 07:08:30 +0000 | [diff] [blame] | 492 | /// SetFunctionAttributes - Set function attributes for a function |
| 493 | /// declaration. |
Anders Carlsson | b2bcf1c | 2010-02-06 02:44:09 +0000 | [diff] [blame] | 494 | void SetFunctionAttributes(GlobalDecl GD, |
Eli Friedman | c6c14d1 | 2009-05-26 01:22:57 +0000 | [diff] [blame] | 495 | llvm::Function *F, |
| 496 | bool IsIncompleteFunction); |
Nuno Lopes | d4cbda6 | 2008-06-08 15:45:52 +0000 | [diff] [blame] | 497 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 498 | /// EmitGlobal - Emit code for a singal global function or var decl. Forward |
| 499 | /// declarations are emitted lazily. |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 500 | void EmitGlobal(GlobalDecl D); |
Daniel Dunbar | 41071de | 2008-08-15 23:26:23 +0000 | [diff] [blame] | 501 | |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 502 | void EmitGlobalDefinition(GlobalDecl D); |
Daniel Dunbar | d5d3180 | 2009-02-19 07:15:39 +0000 | [diff] [blame] | 503 | |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 504 | void EmitGlobalFunctionDefinition(GlobalDecl GD); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 505 | void EmitGlobalVarDefinition(const VarDecl *D); |
John McCall | f746aa6 | 2010-03-19 23:29:14 +0000 | [diff] [blame] | 506 | void EmitAliasDefinition(GlobalDecl GD); |
Daniel Dunbar | af05bb9 | 2008-08-26 08:29:31 +0000 | [diff] [blame] | 507 | void EmitObjCPropertyImplementations(const ObjCImplementationDecl *D); |
Fariborz Jahanian | 109dfc6 | 2010-04-28 21:28:56 +0000 | [diff] [blame] | 508 | void EmitObjCIvarInitializations(ObjCImplementationDecl *D); |
Anders Carlsson | 95d4e5d | 2009-04-15 15:55:24 +0000 | [diff] [blame] | 509 | |
| 510 | // C++ related functions. |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 511 | |
John McCall | d46f985 | 2010-02-19 01:32:20 +0000 | [diff] [blame] | 512 | bool TryEmitDefinitionAsAlias(GlobalDecl Alias, GlobalDecl Target); |
John McCall | c0bf462 | 2010-02-23 00:48:20 +0000 | [diff] [blame] | 513 | bool TryEmitBaseDestructorAsAlias(const CXXDestructorDecl *D); |
John McCall | d46f985 | 2010-02-19 01:32:20 +0000 | [diff] [blame] | 514 | |
Anders Carlsson | 984e068 | 2009-04-01 00:58:25 +0000 | [diff] [blame] | 515 | void EmitNamespace(const NamespaceDecl *D); |
Anders Carlsson | 91e20dd | 2009-04-02 05:55:18 +0000 | [diff] [blame] | 516 | void EmitLinkageSpec(const LinkageSpecDecl *D); |
Anders Carlsson | 95d4e5d | 2009-04-15 15:55:24 +0000 | [diff] [blame] | 517 | |
| 518 | /// EmitCXXConstructors - Emit constructors (base, complete) from a |
| 519 | /// C++ constructor Decl. |
| 520 | void EmitCXXConstructors(const CXXConstructorDecl *D); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 521 | |
Anders Carlsson | 95d4e5d | 2009-04-15 15:55:24 +0000 | [diff] [blame] | 522 | /// EmitCXXConstructor - Emit a single constructor with the given type from |
| 523 | /// a C++ constructor Decl. |
| 524 | void EmitCXXConstructor(const CXXConstructorDecl *D, CXXCtorType Type); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 525 | |
| 526 | /// EmitCXXDestructors - Emit destructors (base, complete) from a |
Anders Carlsson | 27ae536 | 2009-04-17 01:58:57 +0000 | [diff] [blame] | 527 | /// C++ destructor Decl. |
| 528 | void EmitCXXDestructors(const CXXDestructorDecl *D); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 529 | |
Anders Carlsson | 27ae536 | 2009-04-17 01:58:57 +0000 | [diff] [blame] | 530 | /// EmitCXXDestructor - Emit a single destructor with the given type from |
| 531 | /// a C++ destructor Decl. |
| 532 | void EmitCXXDestructor(const CXXDestructorDecl *D, CXXDtorType Type); |
Mike Stump | 1eb4433 | 2009-09-09 15:08:12 +0000 | [diff] [blame] | 533 | |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 534 | /// EmitCXXGlobalInitFunc - Emit the function that initializes C++ globals. |
Anders Carlsson | 89ed31d | 2009-08-08 23:24:23 +0000 | [diff] [blame] | 535 | void EmitCXXGlobalInitFunc(); |
Eli Friedman | 6c6bda3 | 2010-01-08 00:50:11 +0000 | [diff] [blame] | 536 | |
Daniel Dunbar | efb0fa9 | 2010-03-20 04:15:41 +0000 | [diff] [blame] | 537 | /// EmitCXXGlobalDtorFunc - Emit the function that destroys C++ globals. |
| 538 | void EmitCXXGlobalDtorFunc(); |
| 539 | |
Eli Friedman | 6c6bda3 | 2010-01-08 00:50:11 +0000 | [diff] [blame] | 540 | void EmitCXXGlobalVarDeclInitFunc(const VarDecl *D); |
| 541 | |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 542 | // FIXME: Hardcoding priority here is gross. |
Chris Lattner | b4880ba | 2009-05-12 21:21:08 +0000 | [diff] [blame] | 543 | void AddGlobalCtor(llvm::Function *Ctor, int Priority=65535); |
| 544 | void AddGlobalDtor(llvm::Function *Dtor, int Priority=65535); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 545 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 546 | /// EmitCtorList - Generates a global array of functions and priorities using |
| 547 | /// the given list and name. This array will have appending linkage and is |
| 548 | /// suitable for use as a LLVM constructor or destructor array. |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 549 | void EmitCtorList(const CtorList &Fns, const char *GlobalName); |
| 550 | |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 551 | void EmitAnnotations(void); |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 552 | |
Rafael Espindola | d1a5c31 | 2010-03-27 02:52:14 +0000 | [diff] [blame] | 553 | /// EmitFundamentalRTTIDescriptor - Emit the RTTI descriptors for the |
| 554 | /// given type. |
| 555 | void EmitFundamentalRTTIDescriptor(QualType Type); |
| 556 | |
| 557 | /// EmitFundamentalRTTIDescriptors - Emit the RTTI descriptors for the |
| 558 | /// builtin types. |
| 559 | void EmitFundamentalRTTIDescriptors(); |
| 560 | |
Daniel Dunbar | 4274581 | 2009-03-09 23:53:08 +0000 | [diff] [blame] | 561 | /// EmitDeferred - Emit any needed decls for which code generation |
| 562 | /// was deferred. |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 563 | void EmitDeferred(void); |
| 564 | |
Daniel Dunbar | 4274581 | 2009-03-09 23:53:08 +0000 | [diff] [blame] | 565 | /// EmitLLVMUsed - Emit the llvm.used metadata used to force |
| 566 | /// references to global which may otherwise be optimized out. |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 567 | void EmitLLVMUsed(void); |
Daniel Dunbar | f1968f2 | 2008-10-01 00:49:24 +0000 | [diff] [blame] | 568 | |
Daniel Dunbar | 4274581 | 2009-03-09 23:53:08 +0000 | [diff] [blame] | 569 | /// MayDeferGeneration - Determine if the given decl can be emitted |
| 570 | /// lazily; this is only relevant for definitions. The given decl |
| 571 | /// must be either a function or var decl. |
Daniel Dunbar | 73241df | 2009-02-13 21:18:01 +0000 | [diff] [blame] | 572 | bool MayDeferGeneration(const ValueDecl *D); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 573 | }; |
| 574 | } // end namespace CodeGen |
| 575 | } // end namespace clang |
| 576 | |
| 577 | #endif |