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 | |
| 17 | #include "CodeGenTypes.h" |
Dan Gohman | 4f8d123 | 2008-05-22 00:50:06 +0000 | [diff] [blame] | 18 | #include "clang/AST/Attr.h" |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 19 | #include "llvm/ADT/DenseMap.h" |
Anders Carlsson | c9e2091 | 2007-08-21 00:21:21 +0000 | [diff] [blame] | 20 | #include "llvm/ADT/StringMap.h" |
Douglas Gregor | 6ec3668 | 2009-02-18 23:53:56 +0000 | [diff] [blame] | 21 | #include "llvm/ADT/StringSet.h" |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 22 | |
Mike Stump | 96bd13a | 2009-03-04 15:32:52 +0000 | [diff] [blame] | 23 | #include "CGBlocks.h" |
Daniel Dunbar | b768807 | 2008-09-10 00:41:16 +0000 | [diff] [blame] | 24 | #include "CGCall.h" |
| 25 | |
Anders Carlsson | b723f75 | 2009-01-04 02:08:04 +0000 | [diff] [blame] | 26 | #include <list> |
| 27 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 28 | namespace llvm { |
| 29 | class Module; |
| 30 | class Constant; |
| 31 | class Function; |
Nate Begeman | 8bd4afe | 2008-04-19 04:17:09 +0000 | [diff] [blame] | 32 | class GlobalValue; |
Devang Patel | 7a4718e | 2007-10-31 20:01:01 +0000 | [diff] [blame] | 33 | class TargetData; |
Eli Friedman | ff4a2d9 | 2008-06-01 15:54:49 +0000 | [diff] [blame] | 34 | class FunctionType; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 35 | } |
| 36 | |
| 37 | namespace clang { |
| 38 | class ASTContext; |
| 39 | class FunctionDecl; |
Daniel Dunbar | 90db882 | 2008-08-25 06:18:57 +0000 | [diff] [blame] | 40 | class IdentifierInfo; |
Chris Lattner | 391d77a | 2008-03-30 23:03:07 +0000 | [diff] [blame] | 41 | class ObjCMethodDecl; |
Anton Korobeynikov | 20ff310 | 2008-06-01 14:13:53 +0000 | [diff] [blame] | 42 | class ObjCImplementationDecl; |
| 43 | class ObjCCategoryImplDecl; |
| 44 | class ObjCProtocolDecl; |
Chris Lattner | eaf2bb8 | 2009-02-24 22:18:39 +0000 | [diff] [blame] | 45 | class ObjCEncodeExpr; |
Anders Carlsson | d5cab54 | 2009-02-12 17:55:02 +0000 | [diff] [blame] | 46 | class BlockExpr; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 47 | class Decl; |
Oliver Hunt | 2824723 | 2007-12-02 00:11:25 +0000 | [diff] [blame] | 48 | class Expr; |
Chris Lattner | 2c8569d | 2007-12-02 07:19:18 +0000 | [diff] [blame] | 49 | class Stmt; |
Daniel Dunbar | 1e04976 | 2008-08-10 20:25:57 +0000 | [diff] [blame] | 50 | class StringLiteral; |
Nate Begeman | 1a1d92a | 2008-04-20 20:38:08 +0000 | [diff] [blame] | 51 | class NamedDecl; |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 52 | class ValueDecl; |
Chris Lattner | 2b9d2ca | 2007-12-18 08:16:44 +0000 | [diff] [blame] | 53 | class VarDecl; |
Sebastian Redl | 43af76e | 2009-03-07 12:16:37 +0000 | [diff] [blame] | 54 | class LangOptions; |
Chris Lattner | fb97b03 | 2007-12-02 01:40:18 +0000 | [diff] [blame] | 55 | class Diagnostic; |
Nate Begeman | 8bd4afe | 2008-04-19 04:17:09 +0000 | [diff] [blame] | 56 | class AnnotateAttr; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 57 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 58 | namespace CodeGen { |
| 59 | |
Lauro Ramos Venancio | 8137335 | 2008-02-26 21:41:45 +0000 | [diff] [blame] | 60 | class CodeGenFunction; |
Sanjiv Gupta | e8b9f5b | 2008-05-08 08:54:20 +0000 | [diff] [blame] | 61 | class CGDebugInfo; |
Daniel Dunbar | af2f62c | 2008-08-13 00:59:25 +0000 | [diff] [blame] | 62 | class CGObjCRuntime; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 63 | |
| 64 | /// CodeGenModule - This class organizes the cross-function state that is used |
| 65 | /// while generating LLVM code. |
Mike Stump | 2a99814 | 2009-03-04 18:17:45 +0000 | [diff] [blame] | 66 | class CodeGenModule : public BlockModule { |
Anders Carlsson | 8a219ce | 2009-02-24 04:21:31 +0000 | [diff] [blame] | 67 | CodeGenModule(const CodeGenModule&); // DO NOT IMPLEMENT |
| 68 | void operator=(const CodeGenModule&); // DO NOT IMPLEMENT |
| 69 | |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 70 | typedef std::vector< std::pair<llvm::Constant*, int> > CtorList; |
| 71 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 72 | ASTContext &Context; |
Chris Lattner | 45e8cbd | 2007-11-28 05:34:05 +0000 | [diff] [blame] | 73 | const LangOptions &Features; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 74 | llvm::Module &TheModule; |
Devang Patel | 7a4718e | 2007-10-31 20:01:01 +0000 | [diff] [blame] | 75 | const llvm::TargetData &TheTargetData; |
Chris Lattner | fb97b03 | 2007-12-02 01:40:18 +0000 | [diff] [blame] | 76 | Diagnostic &Diags; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 77 | CodeGenTypes Types; |
Ted Kremenek | 815c78f | 2008-08-05 18:50:11 +0000 | [diff] [blame] | 78 | CGObjCRuntime* Runtime; |
| 79 | CGDebugInfo* DebugInfo; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 80 | |
| 81 | llvm::Function *MemCpyFn; |
Eli Friedman | 0c99509 | 2008-05-26 12:59:39 +0000 | [diff] [blame] | 82 | llvm::Function *MemMoveFn; |
Lauro Ramos Venancio | 41ef30e | 2008-02-19 22:01:01 +0000 | [diff] [blame] | 83 | llvm::Function *MemSetFn; |
Daniel Dunbar | 9986eab | 2008-07-30 16:32:24 +0000 | [diff] [blame] | 84 | |
Daniel Dunbar | b681b8f | 2009-03-06 22:13:30 +0000 | [diff] [blame] | 85 | /// RuntimeGlobal - List of runtime globals whose names must be |
| 86 | /// protected from introducing conflicts. These globals should be |
| 87 | /// created unnamed, we will name them and patch up conflicts when |
| 88 | /// we release the module. |
Chris Lattner | 99b5361 | 2009-03-21 08:03:33 +0000 | [diff] [blame] | 89 | std::vector<std::pair<llvm::GlobalValue*, std::string> > RuntimeGlobals; |
Daniel Dunbar | f1968f2 | 2008-10-01 00:49:24 +0000 | [diff] [blame] | 90 | |
Douglas Gregor | 6ec3668 | 2009-02-18 23:53:56 +0000 | [diff] [blame] | 91 | /// GlobalDeclMap - Mapping of decl names (represented as unique |
| 92 | /// character pointers from either the identifier table or the set |
| 93 | /// of mangled names) to global variables we have already |
| 94 | /// emitted. Note that the entries in this map are the actual |
| 95 | /// globals and therefore may not be of the same type as the decl, |
| 96 | /// they should be bitcasted on retrieval. Also note that the |
Chris Lattner | e21c4b8 | 2009-03-21 07:48:31 +0000 | [diff] [blame] | 97 | /// globals are keyed on their source mangled name, not the global name |
Douglas Gregor | 6ec3668 | 2009-02-18 23:53:56 +0000 | [diff] [blame] | 98 | /// (which may change with attributes such as asm-labels). This key |
| 99 | /// to this map should be generated using getMangledName(). |
| 100 | llvm::DenseMap<const char*, llvm::GlobalValue*> GlobalDeclMap; |
| 101 | |
| 102 | /// \brief Contains the strings used for mangled names. |
| 103 | /// |
| 104 | /// FIXME: Eventually, this should map from the semantic/canonical |
| 105 | /// declaration for each global entity to its mangled name (if it |
| 106 | /// has one). |
| 107 | llvm::StringSet<> MangledNames; |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 108 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 109 | /// Aliases - List of aliases in module. These cannot be emitted until all the |
| 110 | /// code has been seen, as they reference things by name instead of directly |
| 111 | /// and may reference forward. |
Daniel Dunbar | 5e1e1f9 | 2009-03-19 08:27:24 +0000 | [diff] [blame] | 112 | std::vector<const ValueDecl*> Aliases; |
Daniel Dunbar | 219df66 | 2008-09-08 23:44:31 +0000 | [diff] [blame] | 113 | |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 114 | /// DeferredDecls - List of decls for which code generation has been |
| 115 | /// deferred. When the translation unit has been fully processed we |
| 116 | /// will lazily emit definitions for only the decls that were |
| 117 | /// actually used. This should contain only Function and Var decls, |
| 118 | /// and only those which actually define something. |
| 119 | std::list<const ValueDecl*> DeferredDecls; |
| 120 | |
| 121 | /// LLVMUsed - List of global values which are required to be |
| 122 | /// present in the object file; bitcast to i8*. This is used for |
| 123 | /// forcing visibility of symbols which may otherwise be optimized |
| 124 | /// out. |
| 125 | std::vector<llvm::Constant*> LLVMUsed; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 126 | |
| 127 | /// GlobalCtors - Store the list of global constructors and their respective |
| 128 | /// priorities to be emitted when the translation unit is complete. |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 129 | CtorList GlobalCtors; |
| 130 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 131 | /// GlobalDtors - Store the list of global destructors and their respective |
| 132 | /// priorities to be emitted when the translation unit is complete. |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 133 | CtorList GlobalDtors; |
| 134 | |
Nate Begeman | 532485c | 2008-04-18 23:43:57 +0000 | [diff] [blame] | 135 | std::vector<llvm::Constant*> Annotations; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 136 | |
Anders Carlsson | c9e2091 | 2007-08-21 00:21:21 +0000 | [diff] [blame] | 137 | llvm::StringMap<llvm::Constant*> CFConstantStringMap; |
Chris Lattner | 45e8cbd | 2007-11-28 05:34:05 +0000 | [diff] [blame] | 138 | llvm::StringMap<llvm::Constant*> ConstantStringMap; |
Daniel Dunbar | 3e9df99 | 2008-08-23 18:37:06 +0000 | [diff] [blame] | 139 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 140 | /// CFConstantStringClassRef - Cached reference to the class for constant |
| 141 | /// 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] | 142 | llvm::Constant *CFConstantStringClassRef; |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 143 | |
Chris Lattner | e21c4b8 | 2009-03-21 07:48:31 +0000 | [diff] [blame] | 144 | /// BuiltinFunctions - This is the cached set of Function*'s that have been |
| 145 | /// created for each builtin, indexed by the Builtin ID. This is null if the |
| 146 | /// Function* has not yet been created. |
Mike Stump | c136e6c | 2009-02-27 22:42:30 +0000 | [diff] [blame] | 147 | std::vector<llvm::Value *> BuiltinFunctions; |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 148 | public: |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 149 | CodeGenModule(ASTContext &C, const LangOptions &Features, llvm::Module &M, |
Sanjiv Gupta | e8b9f5b | 2008-05-08 08:54:20 +0000 | [diff] [blame] | 150 | const llvm::TargetData &TD, Diagnostic &Diags, |
Daniel Dunbar | f77ac86 | 2008-08-11 21:35:06 +0000 | [diff] [blame] | 151 | bool GenerateDebugInfo); |
Ted Kremenek | 815c78f | 2008-08-05 18:50:11 +0000 | [diff] [blame] | 152 | |
Chris Lattner | 2b94fe3 | 2008-03-01 08:45:05 +0000 | [diff] [blame] | 153 | ~CodeGenModule(); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 154 | |
Ted Kremenek | 815c78f | 2008-08-05 18:50:11 +0000 | [diff] [blame] | 155 | /// Release - Finalize LLVM code generation. |
| 156 | void Release(); |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 157 | |
| 158 | /// getObjCRuntime() - Return a reference to the configured |
| 159 | /// Objective-C runtime. |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 160 | CGObjCRuntime &getObjCRuntime() { |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 161 | assert(Runtime && "No Objective-C runtime has been configured."); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 162 | return *Runtime; |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 163 | } |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 164 | |
Daniel Dunbar | 208ff5e | 2008-08-11 18:12:00 +0000 | [diff] [blame] | 165 | /// hasObjCRuntime() - Return true iff an Objective-C runtime has |
| 166 | /// been configured. |
| 167 | bool hasObjCRuntime() { return !!Runtime; } |
| 168 | |
Sanjiv Gupta | e8b9f5b | 2008-05-08 08:54:20 +0000 | [diff] [blame] | 169 | CGDebugInfo *getDebugInfo() { return DebugInfo; } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 170 | ASTContext &getContext() const { return Context; } |
Chris Lattner | 45e8cbd | 2007-11-28 05:34:05 +0000 | [diff] [blame] | 171 | const LangOptions &getLangOptions() const { return Features; } |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 172 | llvm::Module &getModule() const { return TheModule; } |
| 173 | CodeGenTypes &getTypes() { return Types; } |
Chris Lattner | fb97b03 | 2007-12-02 01:40:18 +0000 | [diff] [blame] | 174 | Diagnostic &getDiags() const { return Diags; } |
Chris Lattner | 8f92528 | 2008-01-03 06:36:51 +0000 | [diff] [blame] | 175 | const llvm::TargetData &getTargetData() const { return TheTargetData; } |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 176 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 177 | /// GetAddrOfGlobalVar - Return the llvm::Constant for the address of the |
| 178 | /// given global variable. |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 179 | llvm::Constant *GetAddrOfGlobalVar(const VarDecl *D); |
| 180 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 181 | /// GetAddrOfFunction - Return the llvm::Constant for the address of the given |
| 182 | /// function. |
| 183 | llvm::Constant *GetAddrOfFunction(const FunctionDecl *D); |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 184 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 185 | /// GetStringForStringLiteral - Return the appropriate bytes for a string |
| 186 | /// literal, properly padded to match the literal type. If only the address of |
| 187 | /// a constant is needed consider using GetAddrOfConstantStringLiteral. |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 188 | std::string GetStringForStringLiteral(const StringLiteral *E); |
| 189 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 190 | /// GetAddrOfConstantCFString - Return a pointer to a constant CFString object |
| 191 | /// for the given string. |
Anders Carlsson | c9e2091 | 2007-08-21 00:21:21 +0000 | [diff] [blame] | 192 | llvm::Constant *GetAddrOfConstantCFString(const std::string& str); |
Chris Lattner | a7ad98f | 2008-02-11 00:02:17 +0000 | [diff] [blame] | 193 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 194 | /// GetAddrOfConstantStringFromLiteral - Return a pointer to a constant array |
| 195 | /// for the given string literal. |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 196 | llvm::Constant *GetAddrOfConstantStringFromLiteral(const StringLiteral *S); |
Daniel Dunbar | 1e04976 | 2008-08-10 20:25:57 +0000 | [diff] [blame] | 197 | |
Chris Lattner | eaf2bb8 | 2009-02-24 22:18:39 +0000 | [diff] [blame] | 198 | /// GetAddrOfConstantStringFromObjCEncode - Return a pointer to a constant |
| 199 | /// array for the given ObjCEncodeExpr node. |
| 200 | llvm::Constant *GetAddrOfConstantStringFromObjCEncode(const ObjCEncodeExpr *); |
| 201 | |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 202 | /// GetAddrOfConstantString - Returns a pointer to a character array |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 203 | /// containing the literal. This contents are exactly that of the given |
| 204 | /// string, i.e. it will not be null terminated automatically; see |
| 205 | /// GetAddrOfConstantCString. Note that whether the result is actually a |
| 206 | /// pointer to an LLVM constant depends on Feature.WriteableStrings. |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 207 | /// |
| 208 | /// The result has pointer to array type. |
Daniel Dunbar | 5fabf9d | 2008-10-17 21:56:50 +0000 | [diff] [blame] | 209 | /// |
| 210 | /// \param GlobalName If provided, the name to use for the global |
| 211 | /// (if one is created). |
| 212 | llvm::Constant *GetAddrOfConstantString(const std::string& str, |
| 213 | const char *GlobalName=0); |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 214 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 215 | /// GetAddrOfConstantCString - Returns a pointer to a character array |
| 216 | /// containing the literal and a terminating '\0' character. The result has |
| 217 | /// pointer to array type. |
Daniel Dunbar | 5fabf9d | 2008-10-17 21:56:50 +0000 | [diff] [blame] | 218 | /// |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 219 | /// \param GlobalName If provided, the name to use for the global (if one is |
| 220 | /// created). |
Daniel Dunbar | 5fabf9d | 2008-10-17 21:56:50 +0000 | [diff] [blame] | 221 | llvm::Constant *GetAddrOfConstantCString(const std::string &str, |
| 222 | const char *GlobalName=0); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 223 | |
Daniel Dunbar | 41071de | 2008-08-15 23:26:23 +0000 | [diff] [blame] | 224 | /// getBuiltinLibFunction - Given a builtin id for a function like |
| 225 | /// "__builtin_fabsf", return a Function* for "fabsf". |
Mike Stump | c136e6c | 2009-02-27 22:42:30 +0000 | [diff] [blame] | 226 | llvm::Value *getBuiltinLibFunction(unsigned BuiltinID); |
Daniel Dunbar | 6143293 | 2008-08-13 23:20:05 +0000 | [diff] [blame] | 227 | |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 228 | llvm::Function *getMemCpyFn(); |
Eli Friedman | 0c99509 | 2008-05-26 12:59:39 +0000 | [diff] [blame] | 229 | llvm::Function *getMemMoveFn(); |
Lauro Ramos Venancio | 41ef30e | 2008-02-19 22:01:01 +0000 | [diff] [blame] | 230 | llvm::Function *getMemSetFn(); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 231 | llvm::Function *getIntrinsic(unsigned IID, const llvm::Type **Tys = 0, |
Chris Lattner | 7acda7c | 2007-12-18 00:25:38 +0000 | [diff] [blame] | 232 | unsigned NumTys = 0); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 233 | |
Daniel Dunbar | 41071de | 2008-08-15 23:26:23 +0000 | [diff] [blame] | 234 | /// EmitTopLevelDecl - Emit code for a single top level declaration. |
| 235 | void EmitTopLevelDecl(Decl *D); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 236 | |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 237 | /// AddUsedGlobal - Add a global which should be forced to be |
| 238 | /// present in the object file; these are emitted to the llvm.used |
| 239 | /// metadata global. |
| 240 | void AddUsedGlobal(llvm::GlobalValue *GV); |
| 241 | |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 242 | void AddAnnotation(llvm::Constant *C) { Annotations.push_back(C); } |
| 243 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 244 | /// CreateRuntimeFunction - Create a new runtime function whose name must be |
| 245 | /// protected from collisions. |
| 246 | llvm::Function *CreateRuntimeFunction(const llvm::FunctionType *Ty, |
Daniel Dunbar | f1968f2 | 2008-10-01 00:49:24 +0000 | [diff] [blame] | 247 | const std::string &Name); |
Daniel Dunbar | b681b8f | 2009-03-06 22:13:30 +0000 | [diff] [blame] | 248 | /// CreateRuntimeVariable - Create a new runtime global variable |
| 249 | /// whose name must be protected from collisions. |
| 250 | llvm::GlobalVariable *CreateRuntimeVariable(const llvm::Type *Ty, |
| 251 | const std::string &Name); |
Daniel Dunbar | f1968f2 | 2008-10-01 00:49:24 +0000 | [diff] [blame] | 252 | |
Chris Lattner | c5b8806 | 2008-02-06 05:08:19 +0000 | [diff] [blame] | 253 | void UpdateCompletedType(const TagDecl *D); |
Daniel Dunbar | d60f2fb | 2009-02-17 18:43:32 +0000 | [diff] [blame] | 254 | |
| 255 | /// EmitConstantExpr - Try to emit the given expression as a |
| 256 | /// constant; returns 0 if the expression cannot be emitted as a |
| 257 | /// constant. |
Lauro Ramos Venancio | 8137335 | 2008-02-26 21:41:45 +0000 | [diff] [blame] | 258 | llvm::Constant *EmitConstantExpr(const Expr *E, CodeGenFunction *CGF = 0); |
Daniel Dunbar | d60f2fb | 2009-02-17 18:43:32 +0000 | [diff] [blame] | 259 | |
Nate Begeman | 8bd4afe | 2008-04-19 04:17:09 +0000 | [diff] [blame] | 260 | llvm::Constant *EmitAnnotateAttr(llvm::GlobalValue *GV, |
| 261 | const AnnotateAttr *AA, unsigned LineNo); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 262 | |
Daniel Dunbar | 488e993 | 2008-08-16 00:56:44 +0000 | [diff] [blame] | 263 | /// ErrorUnsupported - Print out an error that codegen doesn't support the |
Daniel Dunbar | 90df4b6 | 2008-09-04 03:43:08 +0000 | [diff] [blame] | 264 | /// specified stmt yet. |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 265 | /// \param OmitOnError - If true, then this error should only be emitted if no |
| 266 | /// other errors have been reported. |
| 267 | void ErrorUnsupported(const Stmt *S, const char *Type, |
Daniel Dunbar | 90df4b6 | 2008-09-04 03:43:08 +0000 | [diff] [blame] | 268 | bool OmitOnError=false); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 269 | |
Daniel Dunbar | 488e993 | 2008-08-16 00:56:44 +0000 | [diff] [blame] | 270 | /// ErrorUnsupported - Print out an error that codegen doesn't support the |
Chris Lattner | c6fdc34 | 2008-01-12 07:05:38 +0000 | [diff] [blame] | 271 | /// specified decl yet. |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 272 | /// \param OmitOnError - If true, then this error should only be emitted if no |
| 273 | /// other errors have been reported. |
Daniel Dunbar | 90df4b6 | 2008-09-04 03:43:08 +0000 | [diff] [blame] | 274 | void ErrorUnsupported(const Decl *D, const char *Type, |
| 275 | bool OmitOnError=false); |
Dan Gohman | 4f8d123 | 2008-05-22 00:50:06 +0000 | [diff] [blame] | 276 | |
Daniel Dunbar | f80519b | 2008-09-04 23:41:35 +0000 | [diff] [blame] | 277 | void SetMethodAttributes(const ObjCMethodDecl *MD, |
| 278 | llvm::Function *F); |
| 279 | |
Devang Patel | 761d7f7 | 2008-09-25 21:02:23 +0000 | [diff] [blame] | 280 | void SetFunctionAttributes(const Decl *D, |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 281 | const CGFunctionInfo &Info, |
Daniel Dunbar | b768807 | 2008-09-10 00:41:16 +0000 | [diff] [blame] | 282 | llvm::Function *F); |
| 283 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 284 | /// ReturnTypeUsesSret - Return true iff the given type uses 'sret' when used |
| 285 | /// as a return type. |
Daniel Dunbar | 88b5396 | 2009-02-02 22:03:45 +0000 | [diff] [blame] | 286 | bool ReturnTypeUsesSret(const CGFunctionInfo &FI); |
Daniel Dunbar | b768807 | 2008-09-10 00:41:16 +0000 | [diff] [blame] | 287 | |
Daniel Dunbar | 88b5396 | 2009-02-02 22:03:45 +0000 | [diff] [blame] | 288 | void ConstructAttributeList(const CGFunctionInfo &Info, |
| 289 | const Decl *TargetDecl, |
Devang Patel | 761d7f7 | 2008-09-25 21:02:23 +0000 | [diff] [blame] | 290 | AttributeListType &PAL); |
Daniel Dunbar | b768807 | 2008-09-10 00:41:16 +0000 | [diff] [blame] | 291 | |
Douglas Gregor | 6ec3668 | 2009-02-18 23:53:56 +0000 | [diff] [blame] | 292 | const char *getMangledName(const NamedDecl *ND); |
Douglas Gregor | 5f2bfd4 | 2009-02-13 00:10:09 +0000 | [diff] [blame] | 293 | |
| 294 | |
Chris Lattner | 9cd4fe4 | 2007-12-02 07:09:19 +0000 | [diff] [blame] | 295 | private: |
Daniel Dunbar | 5c61d97 | 2009-02-13 22:08:43 +0000 | [diff] [blame] | 296 | /// SetGlobalValueAttributes - Set attributes for a global decl. |
| 297 | void SetGlobalValueAttributes(const Decl *D, |
| 298 | bool IsInternal, |
| 299 | bool IsInline, |
| 300 | llvm::GlobalValue *GV, |
| 301 | bool ForDefinition); |
| 302 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 303 | /// SetFunctionAttributesForDefinition - Set function attributes specific to a |
| 304 | /// function definition. |
Daniel Dunbar | 219df66 | 2008-09-08 23:44:31 +0000 | [diff] [blame] | 305 | /// \param D - The ObjCMethodDecl or FunctionDecl defining \arg F. |
| 306 | void SetFunctionAttributesForDefinition(const Decl *D, |
| 307 | llvm::Function *F); |
Daniel Dunbar | f80519b | 2008-09-04 23:41:35 +0000 | [diff] [blame] | 308 | |
Eli Friedman | ff4a2d9 | 2008-06-01 15:54:49 +0000 | [diff] [blame] | 309 | void SetFunctionAttributes(const FunctionDecl *FD, |
Daniel Dunbar | f80519b | 2008-09-04 23:41:35 +0000 | [diff] [blame] | 310 | llvm::Function *F); |
Nuno Lopes | d4cbda6 | 2008-06-08 15:45:52 +0000 | [diff] [blame] | 311 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 312 | /// EmitGlobal - Emit code for a singal global function or var decl. Forward |
| 313 | /// declarations are emitted lazily. |
Daniel Dunbar | 41071de | 2008-08-15 23:26:23 +0000 | [diff] [blame] | 314 | void EmitGlobal(const ValueDecl *D); |
| 315 | |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 316 | void EmitGlobalDefinition(const ValueDecl *D); |
Daniel Dunbar | d5d3180 | 2009-02-19 07:15:39 +0000 | [diff] [blame] | 317 | |
Chris Lattner | 62b33ea | 2009-03-21 08:38:50 +0000 | [diff] [blame^] | 318 | /// CreateFunctionPrototypeIR - Create a new LLVM IR Function for the given |
| 319 | /// decl and set attributes as appropriate. |
Daniel Dunbar | d5d3180 | 2009-02-19 07:15:39 +0000 | [diff] [blame] | 320 | /// |
Daniel Dunbar | 4274581 | 2009-03-09 23:53:08 +0000 | [diff] [blame] | 321 | /// \arg Ty - If non-null the LLVM function type to use for the |
| 322 | /// decl; it is the callers responsibility to make sure this is |
| 323 | /// compatible with the correct type. |
Chris Lattner | 62b33ea | 2009-03-21 08:38:50 +0000 | [diff] [blame^] | 324 | llvm::GlobalValue *CreateFunctionPrototypeIR(const FunctionDecl *D, |
| 325 | const llvm::Type *Ty); |
Daniel Dunbar | d5d3180 | 2009-02-19 07:15:39 +0000 | [diff] [blame] | 326 | |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 327 | void EmitGlobalFunctionDefinition(const FunctionDecl *D); |
| 328 | void EmitGlobalVarDefinition(const VarDecl *D); |
Daniel Dunbar | af05bb9 | 2008-08-26 08:29:31 +0000 | [diff] [blame] | 329 | void EmitObjCPropertyImplementations(const ObjCImplementationDecl *D); |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 330 | |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 331 | // FIXME: Hardcoding priority here is gross. |
| 332 | void AddGlobalCtor(llvm::Function * Ctor, int Priority=65535); |
| 333 | void AddGlobalDtor(llvm::Function * Dtor, int Priority=65535); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 334 | |
Mike Stump | ecc90e9 | 2009-02-13 19:12:34 +0000 | [diff] [blame] | 335 | /// EmitCtorList - Generates a global array of functions and priorities using |
| 336 | /// the given list and name. This array will have appending linkage and is |
| 337 | /// suitable for use as a LLVM constructor or destructor array. |
Daniel Dunbar | 6bfed7e | 2008-08-01 00:01:51 +0000 | [diff] [blame] | 338 | void EmitCtorList(const CtorList &Fns, const char *GlobalName); |
| 339 | |
Daniel Dunbar | 219df66 | 2008-09-08 23:44:31 +0000 | [diff] [blame] | 340 | void EmitAliases(void); |
Daniel Dunbar | bd012ff | 2008-07-29 23:18:29 +0000 | [diff] [blame] | 341 | void EmitAnnotations(void); |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 342 | |
Daniel Dunbar | 4274581 | 2009-03-09 23:53:08 +0000 | [diff] [blame] | 343 | /// EmitDeferred - Emit any needed decls for which code generation |
| 344 | /// was deferred. |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 345 | void EmitDeferred(void); |
| 346 | |
Daniel Dunbar | 4274581 | 2009-03-09 23:53:08 +0000 | [diff] [blame] | 347 | /// EmitLLVMUsed - Emit the llvm.used metadata used to force |
| 348 | /// references to global which may otherwise be optimized out. |
Daniel Dunbar | 0269871 | 2009-02-13 20:29:50 +0000 | [diff] [blame] | 349 | void EmitLLVMUsed(void); |
Daniel Dunbar | f1968f2 | 2008-10-01 00:49:24 +0000 | [diff] [blame] | 350 | |
Daniel Dunbar | b681b8f | 2009-03-06 22:13:30 +0000 | [diff] [blame] | 351 | void BindRuntimeGlobals(); |
Daniel Dunbar | 73241df | 2009-02-13 21:18:01 +0000 | [diff] [blame] | 352 | |
Daniel Dunbar | 4274581 | 2009-03-09 23:53:08 +0000 | [diff] [blame] | 353 | /// MayDeferGeneration - Determine if the given decl can be emitted |
| 354 | /// lazily; this is only relevant for definitions. The given decl |
| 355 | /// must be either a function or var decl. |
Daniel Dunbar | 73241df | 2009-02-13 21:18:01 +0000 | [diff] [blame] | 356 | bool MayDeferGeneration(const ValueDecl *D); |
Reid Spencer | 5f016e2 | 2007-07-11 17:01:13 +0000 | [diff] [blame] | 357 | }; |
| 358 | } // end namespace CodeGen |
| 359 | } // end namespace clang |
| 360 | |
| 361 | #endif |