SemaDeclAttr.cpp revision aed9ea398a3fd8d488120728e2df4ac81c3b0c4b
16b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===--- SemaDeclAttr.cpp - Declaration Attribute Handling ----------------===// 26b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 36b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// The LLVM Compiler Infrastructure 46b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 56b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// This file is distributed under the University of Illinois Open Source 66b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// License. See LICENSE.TXT for details. 76b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 86b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===----------------------------------------------------------------------===// 96b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// This file implements decl-related attribute processing. 116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===----------------------------------------------------------------------===// 136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 142d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 1582d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov#include "TargetAttributesSema.h" 166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner#include "clang/AST/ASTContext.h" 17384aff8b94bb0d1ad6c5667b90621e5699815bb2John McCall#include "clang/AST/DeclCXX.h" 18b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski#include "clang/AST/DeclTemplate.h" 19acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/DeclObjC.h" 20acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/Expr.h" 21f85e193739c953358c865005855253af4f68a497John McCall#include "clang/Basic/SourceManager.h" 22fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 2319510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 249c3087b0b0bea2fd782205c1274ebfc4290265e0John McCall#include "clang/Sema/DelayedDiagnostic.h" 25fe98da0fa352462c02db037360788748f95466f7John McCall#include "clang/Sema/Lookup.h" 26797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 289c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallusing namespace sema; 296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 30883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// These constants match the enumerated choices of 31883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// warn_attribute_wrong_decl_type and err_attribute_wrong_decl_type. 32b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskienum AttributeDeclKind { 33883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunction, 34883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedUnion, 35883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariableOrFunction, 36883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionOrMethod, 37883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameter, 38883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrBlock, 39883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrParameter, 40883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClass, 41883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariable, 42883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedMethod, 43db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski ExpectedVariableFunctionOrLabel, 44f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor ExpectedFieldOrGlobalVar, 45f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor ExpectedStruct 46883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall}; 47883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall 48e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 49e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 50e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 51e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 5287c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic const FunctionType *getFunctionType(const Decl *D, 53a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 5587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const ValueDecl *decl = dyn_cast<ValueDecl>(D)) 566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 5787c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const FieldDecl *decl = dyn_cast<FieldDecl>(D)) 586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 5987c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const TypedefNameDecl* decl = dyn_cast<TypedefNameDecl>(D)) 606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 63bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 656217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 66755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 676217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 68d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 69183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 723568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 733568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 743568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 75d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 76a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 7787c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunction(const Decl *D) { 7887c44604325578b8de07d768391c1c9432404f5aChandler Carruth return getFunctionType(D, false) != NULL; 79a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 80a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 81a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 82d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 83d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 8487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethod(const Decl *D) { 8587c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isFunction(D)|| isa<ObjCMethodDecl>(D); 86d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 873568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 88620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 89620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 90620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 9187c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodOrBlock(const Decl *D) { 9287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethod(D)) 93620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 94620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 9587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 96620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 97620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 98620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 9987c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<BlockDecl>(D); 100620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 101620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Return true if the given decl has a declarator that should have 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// been processed by Sema::GetTypeForDeclarator. 10487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasDeclarator(const Decl *D) { 105f85e193739c953358c865005855253af4f68a497John McCall // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. 10687c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<DeclaratorDecl>(D) || isa<BlockDecl>(D) || isa<TypedefNameDecl>(D) || 10787c44604325578b8de07d768391c1c9432404f5aChandler Carruth isa<ObjCPropertyDecl>(D); 108711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 110d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 111d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 112620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 11387c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasFunctionProto(const Decl *D) { 11487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 11572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 116620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 11787c44604325578b8de07d768391c1c9432404f5aChandler Carruth assert(isa<ObjCMethodDecl>(D) || isa<BlockDecl>(D)); 118d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 119d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 1203568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1213568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 122d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 123d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 124d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 12587c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic unsigned getFunctionOrMethodNumArgs(const Decl *D) { 12687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 12772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 12887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 129d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 13087c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_size(); 1313568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1323568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 13387c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodArgType(const Decl *D, unsigned Idx) { 13487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 13572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 13687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 137d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 138bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13987c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_begin()[Idx]->getType(); 1403568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1413568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 14287c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodResultType(const Decl *D) { 14387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 1445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 14587c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->getResultType(); 1465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 14887c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodVariadic(const Decl *D) { 14987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) { 15072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1513568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 15287c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 153db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 154d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 15587c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->isVariadic(); 1563568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1573568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1583568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 15987c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isInstanceMethod(const Decl *D) { 16087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(D)) 16107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return MethodDecl->isInstance(); 16207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return false; 16307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth} 16407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 166183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 167b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 169bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 170506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 171506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 173bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 174506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 175bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 181085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1826217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 183085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 184085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 185085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1866217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 187085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 188085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 189bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 190085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 191465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 192085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 193085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 194085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 195085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 196085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 197b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the attribute has exactly as many args as Num. May 198b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// output an error. 1991731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruthstatic bool checkAttributeNumArgs(Sema &S, const AttributeList &Attr, 2001731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth unsigned int Num) { 2011731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (Attr.getNumArgs() != Num) { 2021731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << Num; 2031731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return false; 2041731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth } 2051731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2061731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return true; 2071731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth} 2081731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 209db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 210b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the attribute has at least as many args as Num. May 211b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// output an error. 212b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskistatic bool checkAttributeAtLeastNumArgs(Sema &S, const AttributeList &Attr, 213b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski unsigned int Num) { 214b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (Attr.getNumArgs() < Num) { 215db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_too_few_arguments) << Num; 216db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return false; 217db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 218db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 219db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return true; 220db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 221db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 222db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski/// 223fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \brief Check if passed in Decl is a field or potentially shared global var 224fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \return true if the Decl is a field or potentially shared global variable 225fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 22639997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramerstatic bool mayBeSharedVariable(const Decl *D) { 227fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (isa<FieldDecl>(D)) 228fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return true; 22939997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (const VarDecl *vd = dyn_cast<VarDecl>(D)) 230fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return (vd->hasGlobalStorage() && !(vd->isThreadSpecified())); 231fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 232fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return false; 233fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 234fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 235b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the passed-in expression is of type int or bool. 236b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskistatic bool isIntOrBool(Expr *Exp) { 237b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski QualType QT = Exp->getType(); 238b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return QT->isBooleanType() || QT->isIntegerType(); 239b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 240b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 241aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins 242aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins// Check to see if the type is a smart pointer of some kind. We assume 243aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins// it's a smart pointer if it defines both operator-> and operator*. 244aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchinsstatic bool threadSafetyCheckIsSmartPointer(Sema &S, const QualType QT) { 245aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins if (const RecordType *RT = QT->getAs<RecordType>()) { 246aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins DeclContextLookupConstResult Res1 = RT->getDecl()->lookup( 247aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins S.Context.DeclarationNames.getCXXOperatorName(OO_Star)); 248aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins if (Res1.first == Res1.second) 249aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins return false; 250aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins 251aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins DeclContextLookupConstResult Res2 = RT->getDecl()->lookup( 252aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins S.Context.DeclarationNames.getCXXOperatorName(OO_Arrow)); 253aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins if (Res2.first != Res2.second) 254aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins return true; 255aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins } 256aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins return false; 257aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins} 258aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins 259fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 260fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \brief Check if passed in Decl is a pointer type. 261fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// Note that this function may produce an error message. 262fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \return true if the Decl is a pointer type; false otherwise 263fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 264ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchinsstatic bool threadSafetyCheckIsPointer(Sema &S, const Decl *D, 265ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins const AttributeList &Attr) { 26639997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (const ValueDecl *vd = dyn_cast<ValueDecl>(D)) { 267fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski QualType QT = vd->getType(); 26839997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (QT->isAnyPointerType()) 269fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return true; 270aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins 271aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins if (threadSafetyCheckIsSmartPointer(S, QT)) 272aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins return true; 273aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins 274ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_decl_not_pointer) 275fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName()->getName() << QT; 276fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } else { 277fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_can_be_applied_only_to_value_decl) 278fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName(); 279fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 280fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return false; 281fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 282fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 283b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Checks that the passed in QualType either is of RecordType or points 284b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// to RecordType. Returns the relevant RecordType, null if it does not exit. 2857d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramerstatic const RecordType *getRecordType(QualType QT) { 2867d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer if (const RecordType *RT = QT->getAs<RecordType>()) 287b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return RT; 2887d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer 2897d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer // Now check if we point to record type. 2907d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer if (const PointerType *PT = QT->getAs<PointerType>()) 2917d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer return PT->getPointeeType()->getAs<RecordType>(); 2927d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer 2937d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer return 0; 294b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 295b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 2963ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \brief Thread Safety Analysis: Checks that the passed in RecordType 297ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins/// resolves to a lockable object. 29883cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchinsstatic void checkForLockableRecord(Sema &S, Decl *D, const AttributeList &Attr, 29983cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins QualType Ty) { 30083cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins const RecordType *RT = getRecordType(Ty); 30183cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins 30283cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins // Warn if could not get record type for this argument. 303d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer if (!RT) { 304ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_argument_not_class) 30583cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins << Attr.getName() << Ty.getAsString(); 30683cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins return; 3073ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski } 308634b2930f5a8fc4b153437657ce786ca3fba5b1eDeLesley Hutchins // Don't check for lockable if the class hasn't been defined yet. 309634b2930f5a8fc4b153437657ce786ca3fba5b1eDeLesley Hutchins if (RT->isIncompleteType()) 31083cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins return; 31183cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins // Warn if the type is not lockable. 312d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer if (!RT->getDecl()->getAttr<LockableAttr>()) { 313ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_argument_not_lockable) 31483cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins << Attr.getName() << Ty.getAsString(); 31583cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins return; 3163ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski } 3173ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski} 3183ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 319b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Thread Safety Analysis: Checks that all attribute arguments, starting 320ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins/// from Sidx, resolve to a lockable object. 3213ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \param Sidx The attribute argument index to start checking with. 3223ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \param ParamIdxOk Whether an argument can be indexing into a function 3233ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// parameter list. 324ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchinsstatic void checkAttrArgsAreLockableObjs(Sema &S, Decl *D, 3253ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski const AttributeList &Attr, 3263ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVectorImpl<Expr*> &Args, 327b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski int Sidx = 0, 328b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool ParamIdxOk = false) { 3293ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski for(unsigned Idx = Sidx; Idx < Attr.getNumArgs(); ++Idx) { 330b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski Expr *ArgExp = Attr.getArg(Idx); 3313ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 332ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski if (ArgExp->isTypeDependent()) { 333ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // FIXME -- need to check this again on template instantiation 334ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski Args.push_back(ArgExp); 335ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski continue; 336ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski } 337b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 33879747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (StringLiteral *StrLit = dyn_cast<StringLiteral>(ArgExp)) { 33979747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins // Ignore empty strings without warnings 34079747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (StrLit->getLength() == 0) 34179747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins continue; 34279747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins 343ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // We allow constant strings to be used as a placeholder for expressions 344ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // that are not valid C++ syntax, but warn that they are ignored. 345ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_ignored) << 346ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins Attr.getName(); 347ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins continue; 348ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins } 349ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins 3503ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski QualType ArgTy = ArgExp->getType(); 351b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 35279747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins // A pointer to member expression of the form &MyClass::mu is treated 35379747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins // specially -- we need to look at the type of the member. 35479747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (UnaryOperator *UOp = dyn_cast<UnaryOperator>(ArgExp)) 35579747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (UOp->getOpcode() == UO_AddrOf) 35679747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(UOp->getSubExpr())) 35779747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (DRE->getDecl()->isCXXInstanceMember()) 35879747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins ArgTy = DRE->getDecl()->getType(); 35979747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins 3603ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // First see if we can just cast to record type, or point to record type. 3613ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski const RecordType *RT = getRecordType(ArgTy); 362b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3633ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // Now check if we index into a record type function param. 3643ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if(!RT && ParamIdxOk) { 3653ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 366b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski IntegerLiteral *IL = dyn_cast<IntegerLiteral>(ArgExp); 367b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if(FD && IL) { 368b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski unsigned int NumParams = FD->getNumParams(); 369b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski llvm::APInt ArgValue = IL->getValue(); 3703ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski uint64_t ParamIdxFromOne = ArgValue.getZExtValue(); 3713ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski uint64_t ParamIdxFromZero = ParamIdxFromOne - 1; 3723ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if(!ArgValue.isStrictlyPositive() || ParamIdxFromOne > NumParams) { 373b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_range) 374b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << Idx + 1 << NumParams; 375ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins continue; 376b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 3773ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski ArgTy = FD->getParamDecl(ParamIdxFromZero)->getType(); 378b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 379b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 380b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 38183cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins checkForLockableRecord(S, D, Attr, ArgTy); 382b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3833ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Args.push_back(ArgExp); 384b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 385b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 386b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 387e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 388e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 389e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 390e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 3913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 3923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 3933068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 3943068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 395fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleGuardedVarAttr(Sema &S, Decl *D, const AttributeList &Attr, 396fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski bool pointer = false) { 397fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 398fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 399fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 400fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 401fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 402fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 403fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!mayBeSharedVariable(D)) { 404fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 405b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 406fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 407fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 408fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 409ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins if (pointer && !threadSafetyCheckIsPointer(S, D, Attr)) 410fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 411fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 412fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (pointer) 413768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PtGuardedVarAttr(Attr.getRange(), S.Context)); 414fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski else 415768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GuardedVarAttr(Attr.getRange(), S.Context)); 416fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 417fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 418db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleGuardedByAttr(Sema &S, Decl *D, const AttributeList &Attr, 419b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool pointer = false) { 420db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 421db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 422b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 1)) 423db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 424db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 425db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 426db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (!mayBeSharedVariable(D)) { 427db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 428b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 429db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 430db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 431db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 432ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins if (pointer && !threadSafetyCheckIsPointer(S, D, Attr)) 433db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 434db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 435ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins SmallVector<Expr*, 1> Args; 436ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // check that all arguments are lockable objects 437ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args); 438ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins unsigned Size = Args.size(); 439ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins if (Size != 1) 440ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins return; 441ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins Expr *Arg = Args[0]; 442b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 443db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (pointer) 444768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PtGuardedByAttr(Attr.getRange(), 4453ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, Arg)); 446db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 447768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GuardedByAttr(Attr.getRange(), S.Context, Arg)); 448db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 449db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 450db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 451fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleLockableAttr(Sema &S, Decl *D, const AttributeList &Attr, 452fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski bool scoped = false) { 453fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 454fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 455fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 456fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 457fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 4581748b1256646cf0752f172c53ad7482f7beed185Caitlin Sadowski // FIXME: Lockable structs for C code. 459fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!isa<CXXRecordDecl>(D)) { 460fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 461fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName() << ExpectedClass; 462fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 463fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 464fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 465fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (scoped) 466768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ScopedLockableAttr(Attr.getRange(), S.Context)); 467fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski else 468768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LockableAttr(Attr.getRange(), S.Context)); 469fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 470fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 471fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleNoThreadSafetyAttr(Sema &S, Decl *D, 472fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski const AttributeList &Attr) { 473fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 474fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 475fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 476fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 477fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 478b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 479fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 480fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 481fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 482fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 483fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 484768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoThreadSafetyAnalysisAttr(Attr.getRange(), 485fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Context)); 486fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 487fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 48871efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryanystatic void handleNoAddressSafetyAttr(Sema &S, Decl *D, 489ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins const AttributeList &Attr) { 49071efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany assert(!Attr.isInvalid()); 49171efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 49271efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany if (!checkAttributeNumArgs(S, Attr, 0)) 49371efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany return; 49471efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 49571efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 49671efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 49771efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany << Attr.getName() << ExpectedFunctionOrMethod; 49871efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany return; 49971efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany } 50071efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 50171efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany D->addAttr(::new (S.Context) NoAddressSafetyAnalysisAttr(Attr.getRange(), 50271efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany S.Context)); 50371efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany} 50471efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 505db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleAcquireOrderAttr(Sema &S, Decl *D, const AttributeList &Attr, 506db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski bool before) { 507db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 508db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 509b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 510db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 511db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 512db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 513b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski ValueDecl *VD = dyn_cast<ValueDecl>(D); 514b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!VD || !mayBeSharedVariable(D)) { 515db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 516b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << ExpectedFieldOrGlobalVar; 517db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 518db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 519db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 520ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // Check that this attribute only applies to lockable types. 521b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski QualType QT = VD->getType(); 522b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!QT->isDependentType()) { 523b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const RecordType *RT = getRecordType(QT); 524b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!RT || !RT->getDecl()->getAttr<LockableAttr>()) { 525ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_decl_not_lockable) 526b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName(); 527b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 528b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 529b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 530b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5313ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 532ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // Check that all arguments are lockable objects. 533ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args); 5343ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 535ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins if (Size == 0) 536ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins return; 537ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins Expr **StartArg = &Args[0]; 5383ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 539db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (before) 540768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AcquiredBeforeAttr(Attr.getRange(), S.Context, 5413ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 542db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 543768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AcquiredAfterAttr(Attr.getRange(), S.Context, 5443ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 545db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 546db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 547db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, 548b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 549db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 550db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 551db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // zero or more arguments ok 552db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 553b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that the attribute is applied to a function 554b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 555db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 556db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 557db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 558db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 559db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 560b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 5613ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 562ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true); 5633ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5643ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 5653ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 566db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 567768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveLockFunctionAttr(Attr.getRange(), 5683ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5693ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 570db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 571768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedLockFunctionAttr(Attr.getRange(), 5723ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 5733ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 574db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 575db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 576db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleTrylockFunAttr(Sema &S, Decl *D, const AttributeList &Attr, 577b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 578db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 579db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 580b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 581db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 582db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 583b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 584db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 585db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 586db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 587db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 588db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 589b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isIntOrBool(Attr.getArg(0))) { 590b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_first_argument_not_int_or_bool) 591b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName(); 592b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 593b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 594b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 5953ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 2> Args; 596b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 597ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args, 1); 5983ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 5993ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 6003ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 601db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 602768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveTrylockFunctionAttr(Attr.getRange(), 6033ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, 60469f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski Attr.getArg(0), 6053ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 606db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 607768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedTrylockFunctionAttr(Attr.getRange(), 60869f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski S.Context, 60969f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski Attr.getArg(0), 61069f5d14bae44f05b22fa50bb87122a61081fcd57Caitlin Sadowski StartArg, Size)); 611db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 612db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 613db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLocksRequiredAttr(Sema &S, Decl *D, const AttributeList &Attr, 614b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool exclusive = false) { 615db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 616db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 617b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 618db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 619db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 620b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 621db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 622db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 623db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 624db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 625db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 626b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 6273ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 628ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args); 6293ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 630ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins if (Size == 0) 631ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins return; 632ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins Expr **StartArg = &Args[0]; 6333ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 634db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (exclusive) 635768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ExclusiveLocksRequiredAttr(Attr.getRange(), 6363ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 6373ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 638db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski else 639768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SharedLocksRequiredAttr(Attr.getRange(), 6403ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski S.Context, StartArg, 6413ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Size)); 642db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 643db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 644db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleUnlockFunAttr(Sema &S, Decl *D, 645b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 646db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 647db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 648db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // zero or more arguments ok 649db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 650b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 651db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 652db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 653db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 654db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 655db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 656b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 6573ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 658ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true); 6593ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 6603ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 6613ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 662768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnlockFunctionAttr(Attr.getRange(), S.Context, 6633ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 664db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 665db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 666db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLockReturnedAttr(Sema &S, Decl *D, 667b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 668db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 669db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 670b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 1)) 671db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 6723ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr *Arg = Attr.getArg(0); 673db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 674b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 675db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 676db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 677db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 678db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 679db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 6803ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (Arg->isTypeDependent()) 681b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 682b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 6833ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // check that the argument is lockable object 68483cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins checkForLockableRecord(S, D, Attr, Arg->getType()); 6853ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 686768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LockReturnedAttr(Attr.getRange(), S.Context, Arg)); 687db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 688db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 689db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLocksExcludedAttr(Sema &S, Decl *D, 690b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 691db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 692db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 693b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 694db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 695db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 696b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 697db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 698db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski << Attr.getName() << ExpectedFunctionOrMethod; 699db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 700db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 701db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 702b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 7033ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 704ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args); 7053ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 706ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins if (Size == 0) 707ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins return; 708ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins Expr **StartArg = &Args[0]; 7093ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 710768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LocksExcludedAttr(Attr.getRange(), S.Context, 7113ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 712db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 713db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 714db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 7151b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleExtVectorTypeAttr(Sema &S, Scope *scope, Decl *D, 7161b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 71787c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *tDecl = dyn_cast<TypedefNameDecl>(D); 718545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 719803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 720545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 7216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 722bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 7249cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 7269cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7279cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 7289cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 729f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 730e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 731f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 732f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 7334ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 734e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ExprResult Size = S.ActOnIdExpression(scope, SS, TemplateKWLoc, id, 735e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara false, false); 7364ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 7374ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 7384ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 7394ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 7409cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 7419cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 7421731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 7439cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 7441731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 7457a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne sizeExpr = Attr.getArg(0); 7466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7479cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 7489cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 7499cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 7509ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 7519cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 752ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 753a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 754bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7559cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 7569cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 7576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePackedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 7616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 7621731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 7636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 764bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 76587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 766768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis TD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); 76787c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FieldDecl *FD = dyn_cast<FieldDecl>(D)) { 7686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 7696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 7706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 771803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 772fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 77308631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 7746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 775768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis FD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); 7766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 7773c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 7786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMsStructAttr(Sema &S, Decl *D, const AttributeList &Attr) { 78187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 782768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis TD->addAttr(::new (S.Context) MsStructAttr(Attr.getRange(), S.Context)); 783c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian else 784c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 785c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian} 786c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian 7871b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBAction(Sema &S, Decl *D, const AttributeList &Attr) { 78896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 7891731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 79096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 791bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 79263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 79387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 79463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 795768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBActionAttr(Attr.getRange(), S.Context)); 79663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 79763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 79863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 7994ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); 80063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 80163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 8022f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenekstatic bool checkIBOutletCommon(Sema &S, Decl *D, const AttributeList &Attr) { 8032f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // The IBOutlet/IBOutletCollection attributes only apply to instance 8042f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // variables or properties of Objective-C classes. The outlet must also 8052f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // have an object reference type. 8062f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (const ObjCIvarDecl *VD = dyn_cast<ObjCIvarDecl>(D)) { 8072f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 8080bfaf067c294bc4064c2f1aee0bc1c51e861ac65Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) 8092f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek << Attr.getName() << VD->getType() << 0; 8102f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 8112f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 8122f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 8132f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek else if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) { 8142f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 815f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) 8162f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek << Attr.getName() << PD->getType() << 1; 8172f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 8182f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 8192f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 8202f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek else { 8212f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 8222f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 8232f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 824f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor 8252f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return true; 8262f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek} 8272f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 8281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutlet(Sema &S, Decl *D, const AttributeList &Attr) { 82963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 8301731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 83163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 8322f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 8332f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!checkIBOutletCommon(S, D, Attr)) 83463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 83563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 8362f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek D->addAttr(::new (S.Context) IBOutletAttr(Attr.getRange(), S.Context)); 83796329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 83896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 8391b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutletCollection(Sema &S, Decl *D, 8401b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 841857e918a8a40deb128840308a318bf623d68295fTed Kremenek 842857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 843a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 844857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 845857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 846857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 847857e918a8a40deb128840308a318bf623d68295fTed Kremenek 8482f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!checkIBOutletCommon(S, D, Attr)) 849857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 8502f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 851a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 852a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 853f4072ae44b70a7ac234c47c146157fee75437e38Fariborz Jahanian II = &S.Context.Idents.get("NSObject"); 8543a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 855b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 85687c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.getScopeForContext(D->getDeclContext()->getParent())); 857a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 858a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 859a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 860a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 861b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 862a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 863a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 864a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 865a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 866f4072ae44b70a7ac234c47c146157fee75437e38Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCObjectType()) { 867a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 868a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 869a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 870f1e7af36d6673185994b3d1751cf7e9a9a1491b8Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getRange(),S.Context, 871f1e7af36d6673185994b3d1751cf7e9a9a1491b8Argyrios Kyrtzidis QT, Attr.getParameterLoc())); 872857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 873857e918a8a40deb128840308a318bf623d68295fTed Kremenek 874d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruthstatic void possibleTransparentUnionPointerType(QualType &T) { 87568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (const RecordType *UT = T->getAsUnionType()) 87668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { 87768fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian RecordDecl *UD = UT->getDecl(); 87868fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian for (RecordDecl::field_iterator it = UD->field_begin(), 87968fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian itend = UD->field_end(); it != itend; ++it) { 88068fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian QualType QT = it->getType(); 88168fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (QT->isAnyPointerType() || QT->isBlockPointerType()) { 88268fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian T = QT; 88368fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian return; 88468fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 88568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 88668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 88768fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian} 88868fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 8891b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNonNullAttr(Sema &S, Decl *D, const AttributeList &Attr) { 890bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 891bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 89287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 893fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 894883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 895eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 896eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 897bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 89807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 89907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 90087c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 90187c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 902eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 903eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 9045f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned, 10> NonNullArgs; 905bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 906eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 907eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 908bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 909bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 910eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 9117a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Ex = *I; 912eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 913ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 914ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 915fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 916fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 917eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 918eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 919bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 920eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 921bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 922eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 923fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 92430bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 925eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 926eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 927bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 928465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 92907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 93007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 93107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 93207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_attribute_invalid_implicit_this_argument) 93307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "nonnull" << Ex->getSourceRange(); 93407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 93507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 93607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 93707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 938eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 939eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 94087c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x).getNonReferenceType(); 941d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 94268fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 943dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 944eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 945c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 946fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 9477fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 948eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 949bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 950eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 951eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 952bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 953bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 954bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 9557fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 95687c44604325578b8de07d768391c1c9432404f5aChandler Carruth for (unsigned I = 0, E = getFunctionOrMethodNumArgs(D); I != E; ++I) { 95787c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, I).getNonReferenceType(); 958d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 959dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 960d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 96146bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 962bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 963ee1c08c88649aaea9dd53272a726cd23de533215Ted Kremenek // No pointer arguments? 96460acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 96560acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 96660acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 96760acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 96860acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 9697fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 97060acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 971eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 9727fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 9737fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 9747fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 975dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 976768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NonNullAttr(Attr.getRange(), S.Context, start, 977cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 978eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 979eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 9801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOwnershipAttr(Sema &S, Decl *D, const AttributeList &AL) { 981dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 982dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 983dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 984dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 985dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 986dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 9872a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 9882a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 989dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 990dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 991dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 992dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 993dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 994dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 995dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 996cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 9972a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 9982a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 999cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 1000dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 1001dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 1002dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1003dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 10042a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 10052a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 1006cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 1007dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 1008dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 1009dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1010dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 10112a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 10122a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 1013cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 1014dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 1015dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 1016dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 1017dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1018dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 10192a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 10202a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 10212a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 10222a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 1023dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1024dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 102587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunction(D) || !hasFunctionProto(D)) { 1026883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) 1027883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << AL.getName() << ExpectedFunction; 1028dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1029dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1030dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 103107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 103207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 103387c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 103487c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 1035dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 10365f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Module = AL.getParameterName()->getName(); 1037dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1038dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 1039dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 1040dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 1041dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 10425f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned, 10> OwnershipArgs; 1043dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 10442a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 10452a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 1046dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 10477a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = *I; 1048dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 1049dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 1050dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 1051dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 1052dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 1053dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1054dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1055dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1056dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 1057dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1058dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 1059dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 1060dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 1061dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1062dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1063dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 106407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 106507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 106607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 106707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "ownership" << IdxExpr->getSourceRange(); 106807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 106907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 107007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 107107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 107207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1073dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 1074cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 1075cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 1076dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 107787c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x); 1078dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 1079dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 1080dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 1081cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 1082dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 1083dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 1084dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1085dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1086dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 1087dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1088cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 1089dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 1090dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 10917a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = AL.getArg(0); 1092dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 1093dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 1094dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 1095dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 1096dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 1097dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 1098dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1099dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1100dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1101dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 1102dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1103dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 1104dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1105dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 1106cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 110787c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<OwnershipAttr>(), 110887c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<OwnershipAttr>(); 1109cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 1110cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 1111cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 1112cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 1113cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 1114cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 1115cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 1116dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1117dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1118dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1119dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1120dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 1121dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1122dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1123dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 1124dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 1125dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 1126cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 1127cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 1128cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 1129cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 1130dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1131cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 113287c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 1133cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 1134dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 1135dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1136332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// Whether this declaration has internal linkage for the purposes of 1137332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// things that want to complain about things not have internal linkage. 1138332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCallstatic bool hasEffectivelyInternalLinkage(NamedDecl *D) { 1139332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall switch (D->getLinkage()) { 1140332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case NoLinkage: 1141332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case InternalLinkage: 1142332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 1143332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1144332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // Template instantiations that go from external to unique-external 1145332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // shouldn't get diagnosed. 1146332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case UniqueExternalLinkage: 1147332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 1148332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1149332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case ExternalLinkage: 1150332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return false; 1151332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 1152332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall llvm_unreachable("unknown linkage kind!"); 115311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 115411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 11551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakRefAttr(Sema &S, Decl *D, const AttributeList &Attr) { 115611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 115711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 115811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 115911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 116011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 116111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 116287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 1163332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1164883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 1165332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return; 1166332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 1167332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 116887c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 1169332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 117011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 117111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 117211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 117311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 117411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 117511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 117611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 117711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 117811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 117911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 118087c44604325578b8de07d768391c1c9432404f5aChandler Carruth const DeclContext *Ctx = D->getDeclContext()->getRedeclContext(); 11817a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 11827a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 1183332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall nd->getNameAsString(); 11847a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 118511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 118611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 118711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 118811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 118911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 119011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 119111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 119211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 119311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 119411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 119511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 119611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 119711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 119811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 119911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 120011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 120111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 120211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 120311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 120411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 1205332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!hasEffectivelyInternalLinkage(nd)) { 1206332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); 120711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 120811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 120911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 121011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 121111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 121211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 121311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 121411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 12157a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 121611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 121711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 121811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 12195cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 122011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 122111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 122211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 122311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 122411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 122511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 1226768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, 1227f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 122811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 122911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 1230768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakRefAttr(Attr.getRange(), S.Context)); 123111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 123211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 12331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 12346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1235545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 12363c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1239bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12407a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 12416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 12426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1243bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12445cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 1245fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 12463c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 12476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1249bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1250bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getTriple().isOSDarwin()) { 1251f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); 1252f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola return; 1253f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola } 1254f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola 12556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 1256bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1257768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, 1258f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 12596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12611b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNakedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1262dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 12631731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 1264dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 1265dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 126687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1267dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1268883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 1269dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 1270dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 1271dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 1272768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NakedAttr(Attr.getRange(), S.Context)); 1273dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar} 1274dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 12751b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlwaysInlineAttr(Sema &S, Decl *D, 12761b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1277dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 1278831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 12793c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1280af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 1281af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 12825bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 128387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 12845bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1285883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 12865bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 12875bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1288bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1289768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getRange(), S.Context)); 1290af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 1291af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 12921b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMallocAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1293dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 1294831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 129576168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 129676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 129776168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 12981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 129987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 13001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 13012cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 1302768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) MallocAttr(Attr.getRange(), S.Context)); 13032cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 13042cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 1305fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 1306fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 13072cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 130876168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 130976168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 13101b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMayAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 131134c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman // check the attribute arguments. 13121731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 131334c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman return; 131434c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 1315768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) MayAliasAttr(Attr.getRange(), S.Context)); 131634c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman} 131734c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 13181b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 131956aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 132087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 1321768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoCommonAttr(Attr.getRange(), S.Context)); 1322722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 1323722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1324883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 1325a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 1326a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 13271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 132856aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 132987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 1330768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CommonAttr(Attr.getRange(), S.Context)); 1331722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 1332722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1333883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 1334a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 1335a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 13361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoReturnAttr(Sema &S, Decl *D, const AttributeList &attr) { 133787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 1338711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1339711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) return; 1340711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 134187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 1342711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1343883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 1344711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 1345711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 1346711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1347768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoReturnAttr(attr.getRange(), S.Context)); 1348711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 1349711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1350711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckNoReturnAttr(const AttributeList &attr) { 1351831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (attr.hasParameterOrArguments()) { 1352711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1353711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 1354711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 1355711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 1356711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1357711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 1358b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 1359b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 13601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnalyzerNoReturnAttr(Sema &S, Decl *D, 13611b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1362b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 1363b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 1364b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 1365b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 13661731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if(!checkAttributeNumArgs(S, Attr, 0)) 13671731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return; 1368b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 136987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<BlockDecl>(D)) { 137087c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *VD = dyn_cast<ValueDecl>(D); 13713ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 13723ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 1373e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 1374e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 1375b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 1376883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1377b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 137819c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 13796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1380b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 1381768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getRange(), S.Context)); 13826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 138435cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 13851b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVecReturnAttr(Sema &S, Decl *D, const AttributeList &Attr) { 138635cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 138735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 138835cc9627340b15232139b3c43fcde5973e7fad30John Thompson 1389f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher According to the PPU ABI specifications, a class with a single member of 1390f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher vector type is returned in memory when used as the return value of a function. 1391f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher This results in inefficient code when implementing vector classes. To return 1392f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher the value in a single vector register, add the vecreturn attribute to the 1393f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher class definition. This attribute is also applicable to struct types. 139435cc9627340b15232139b3c43fcde5973e7fad30John Thompson 139535cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 139635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 139735cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 139835cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 139935cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 140035cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 140135cc9627340b15232139b3c43fcde5973e7fad30John Thompson 140235cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 140335cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 140435cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 140535cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 140635cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 140735cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 140835cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 140987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<RecordDecl>(D)) { 141035cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1411883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedClass; 141235cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 141335cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 141435cc9627340b15232139b3c43fcde5973e7fad30John Thompson 141587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (D->getAttr<VecReturnAttr>()) { 141635cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 141735cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 141835cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 141935cc9627340b15232139b3c43fcde5973e7fad30John Thompson 142087c44604325578b8de07d768391c1c9432404f5aChandler Carruth RecordDecl *record = cast<RecordDecl>(D); 142101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 142201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 142301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 142401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 142501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 142601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 142701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 142801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 142901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 143001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 143101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 143201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 1433f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher for (RecordDecl::field_iterator iter = record->field_begin(); 1434f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher iter != record->field_end(); iter++) { 143501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 143601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 143701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 143801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 143901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 144001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 144101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 1442768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) VecReturnAttr(Attr.getRange(), S.Context)); 144335cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 144435cc9627340b15232139b3c43fcde5973e7fad30John Thompson 14451b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDependencyAttr(Sema &S, Decl *D, const AttributeList &Attr) { 144687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<ParmVarDecl>(D)) { 1447bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1448883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrParameter; 1449bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 1450bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 1451bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 1452bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 1453bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 14541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnusedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 145573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 1456831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 14573c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 145873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 145973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 1460bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 146187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<ObjCIvarDecl>(D) && !isFunctionOrMethod(D) && 146287c44604325578b8de07d768391c1c9432404f5aChandler Carruth !isa<TypeDecl>(D) && !isa<LabelDecl>(D)) { 1463fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1464883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableFunctionOrLabel; 146573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 146673798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 1467bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1468768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnusedAttr(Attr.getRange(), S.Context)); 146973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 147073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 1471f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindolastatic void handleReturnsTwiceAttr(Sema &S, Decl *D, 1472f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola const AttributeList &Attr) { 1473f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola // check the attribute arguments. 1474f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola if (Attr.hasParameterOrArguments()) { 1475f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1476f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola return; 1477f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola } 1478f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 1479f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola if (!isa<FunctionDecl>(D)) { 1480f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1481f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola << Attr.getName() << ExpectedFunction; 1482f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola return; 1483f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola } 1484f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 1485f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola D->addAttr(::new (S.Context) ReturnsTwiceAttr(Attr.getRange(), S.Context)); 1486f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola} 1487f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 14881b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUsedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1489b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 1490831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 1491b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1492b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1493b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 1494bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 149587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { 1496186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 1497b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 1498b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1499b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 150087c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (!isFunctionOrMethod(D)) { 1501b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1502883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 1503b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1504b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 1505bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1506768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UsedAttr(Attr.getRange(), S.Context)); 1507b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 1508b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 15091b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 15103068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1511bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1512bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 15133068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1514bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 15153068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 15163068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 15173068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 15187a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 15193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1520ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1521ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1522fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15233c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 15243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 15253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 15263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 15273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1528bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 152987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1530fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1531883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 15323068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 15333068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 15343068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1535768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ConstructorAttr(Attr.getRange(), S.Context, 1536f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 15373068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 15383068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 15391b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDestructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 15403068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1541bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1542bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 15433068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1544bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 15453068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 15463068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 15473068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 15487a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 15493068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1550ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1551ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1552fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15533c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 15543068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 15553068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 15563068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 15573068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1558bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 155987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1560fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1561883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 15623068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 15633068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 15643068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1565768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) DestructorAttr(Attr.getRange(), S.Context, 1566f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 15673068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 15683068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 15691b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeprecatedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1570951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1571951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1572bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1573c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1574c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1575951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1576c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian // Handle the case where deprecated attribute has a text message. 15775f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str; 1578951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1579951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1580c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (!SE) { 1581951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) 1582951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner << "deprecated"; 1583c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1584c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1585951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 15866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1587bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1588768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) DeprecatedAttr(Attr.getRange(), S.Context, Str)); 15896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 15906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15911b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnavailableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1592951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1593951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1594bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1595bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 1596bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 1597951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1598c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian // Handle the case where unavailable attribute has a text message. 15995f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str; 1600951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1601951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1602c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (!SE) { 1603951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), 1604c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian diag::err_attribute_not_string) << "unavailable"; 1605c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian return; 1606c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1607951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 1608c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1609768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnavailableAttr(Attr.getRange(), S.Context, Str)); 1610bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 1611bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 1612742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanianstatic void handleArcWeakrefUnavailableAttr(Sema &S, Decl *D, 1613742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian const AttributeList &Attr) { 1614742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian unsigned NumArgs = Attr.getNumArgs(); 1615742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (NumArgs > 0) { 1616742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1617742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian return; 1618742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 1619742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 1620742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian D->addAttr(::new (S.Context) ArcWeakrefUnavailableAttr( 1621768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis Attr.getRange(), S.Context)); 1622742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian} 1623742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 1624b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beardstatic void handleObjCRootClassAttr(Sema &S, Decl *D, 1625b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard const AttributeList &Attr) { 1626b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard if (!isa<ObjCInterfaceDecl>(D)) { 1627b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 1628b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard return; 1629b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard } 1630b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard 1631b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard unsigned NumArgs = Attr.getNumArgs(); 1632b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard if (NumArgs > 0) { 1633b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1634b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard return; 1635b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard } 1636b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard 1637b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard D->addAttr(::new (S.Context) ObjCRootClassAttr(Attr.getRange(), S.Context)); 1638b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard} 1639b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard 164071207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenekstatic void handleObjCRequiresPropertyDefsAttr(Sema &S, Decl *D, 1641e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian const AttributeList &Attr) { 1642341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian if (!isa<ObjCInterfaceDecl>(D)) { 1643341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_suppress_autosynthesis); 1644341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian return; 1645341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian } 1646341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian 1647e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian unsigned NumArgs = Attr.getNumArgs(); 1648e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian if (NumArgs > 0) { 1649e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1650e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian return; 1651e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian } 1652e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian 165371207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek D->addAttr(::new (S.Context) ObjCRequiresPropertyDefsAttr( 1654e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian Attr.getRange(), S.Context)); 1655e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian} 1656e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian 16571b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAvailabilityAttr(Sema &S, Decl *D, 16581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 16590a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor IdentifierInfo *Platform = Attr.getParameterName(); 16600a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor SourceLocation PlatformLoc = Attr.getParameterLoc(); 16610a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16625f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef PlatformName 16630a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor = AvailabilityAttr::getPrettyPlatformName(Platform->getName()); 16640a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (PlatformName.empty()) { 16650a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(PlatformLoc, diag::warn_availability_unknown_platform) 16660a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << Platform; 16670a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16680a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor PlatformName = Platform->getName(); 16690a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16700a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16710a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Introduced = Attr.getAvailabilityIntroduced(); 16720a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Deprecated = Attr.getAvailabilityDeprecated(); 16730a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Obsoleted = Attr.getAvailabilityObsoleted(); 1674b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor bool IsUnavailable = Attr.getUnavailableLoc().isValid(); 16750a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 1676c90df6a0ad61041e976e0136c29e6d57b17cba3dDouglas Gregor // Ensure that Introduced <= Deprecated <= Obsoleted (although not all 16770a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor // of these steps are needed). 16780a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Deprecated.isValid() && 16793b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Introduced.Version <= Deprecated.Version)) { 16800a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 16810a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << PlatformName << Deprecated.Version.getAsString() 16820a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 16830a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 16840a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16850a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16860a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Obsoleted.isValid() && 16873b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Introduced.Version <= Obsoleted.Version)) { 16880a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 16890a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 16900a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 16910a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 16920a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 16930a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 16940a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Deprecated.isValid() && Obsoleted.isValid() && 16953b6b7accb55980b149571d44e96f92dae500b0a9Douglas Gregor !(Deprecated.Version <= Obsoleted.Version)) { 16960a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Deprecated.KeywordLoc, diag::warn_availability_version_ordering) 16970a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 16980a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << Deprecated.Version.getAsString(); 16990a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 17000a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 17010a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 1702006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian StringRef Str; 1703006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian const StringLiteral *SE = 1704006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian dyn_cast_or_null<const StringLiteral>(Attr.getMessageExpr()); 1705006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian if (SE) 1706006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian Str = SE->getString(); 1707006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian 1708768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AvailabilityAttr(Attr.getRange(), S.Context, 17090a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Platform, 17100a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Introduced.Version, 17110a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Deprecated.Version, 1712b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Obsoleted.Version, 1713006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian IsUnavailable, 1714006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian Str)); 17150a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor} 17160a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 17171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVisibilityAttr(Sema &S, Decl *D, const AttributeList &Attr) { 17186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 17191731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if(!checkAttributeNumArgs(S, Attr, 1)) 17206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1721bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17227a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 17236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 17246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1725bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17265cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 1727fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 17283c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 17296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1731bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17325f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef TypeStr = Str->getString(); 1733cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 1734bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1735c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 1736cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 1737c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 1738cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 1739c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 1740cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 17414188760f6bb20f91c6883dffd89204419f852deeJohn McCall else if (TypeStr == "protected") { 17424188760f6bb20f91c6883dffd89204419f852deeJohn McCall // Complain about attempts to use protected visibility on targets 17434188760f6bb20f91c6883dffd89204419f852deeJohn McCall // (like Darwin) that don't support it. 17444188760f6bb20f91c6883dffd89204419f852deeJohn McCall if (!S.Context.getTargetInfo().hasProtectedVisibility()) { 17454188760f6bb20f91c6883dffd89204419f852deeJohn McCall S.Diag(Attr.getLoc(), diag::warn_attribute_protected_visibility); 17464188760f6bb20f91c6883dffd89204419f852deeJohn McCall type = VisibilityAttr::Default; 17474188760f6bb20f91c6883dffd89204419f852deeJohn McCall } else { 17484188760f6bb20f91c6883dffd89204419f852deeJohn McCall type = VisibilityAttr::Protected; 17494188760f6bb20f91c6883dffd89204419f852deeJohn McCall } 17504188760f6bb20f91c6883dffd89204419f852deeJohn McCall } else { 175108631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 17526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1754bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1755768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) VisibilityAttr(Attr.getRange(), S.Context, type)); 17566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 17576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCMethodFamilyAttr(Sema &S, Decl *decl, 17591b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1760d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); 1761d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (!method) { 176287c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1763883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedMethod; 1764d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1765d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1766d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 176787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 0 || !Attr.getParameterName()) { 176887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!Attr.getParameterName() && Attr.getNumArgs() == 1) { 176987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 1770d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall << "objc_method_family" << 1; 1771d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } else { 177287c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1773d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 177487c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 1775d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1776d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1777d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 17785f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef param = Attr.getParameterName()->getName(); 1779d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodFamilyAttr::FamilyKind family; 1780d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (param == "none") 1781d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_None; 1782d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "alloc") 1783d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_alloc; 1784d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "copy") 1785d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_copy; 1786d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "init") 1787d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_init; 1788d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "mutableCopy") 1789d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_mutableCopy; 1790d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "new") 1791d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_new; 1792d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else { 1793d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // Just warn and ignore it. This is future-proof against new 1794d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // families being used in system headers. 179587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getParameterLoc(), diag::warn_unknown_method_family); 1796d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1797d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1798d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1799f85e193739c953358c865005855253af4f68a497John McCall if (family == ObjCMethodFamilyAttr::OMF_init && 1800f85e193739c953358c865005855253af4f68a497John McCall !method->getResultType()->isObjCObjectPointerType()) { 1801f85e193739c953358c865005855253af4f68a497John McCall S.Diag(method->getLocation(), diag::err_init_method_bad_return_type) 1802f85e193739c953358c865005855253af4f68a497John McCall << method->getResultType(); 1803f85e193739c953358c865005855253af4f68a497John McCall // Ignore the attribute. 1804f85e193739c953358c865005855253af4f68a497John McCall return; 1805f85e193739c953358c865005855253af4f68a497John McCall } 1806f85e193739c953358c865005855253af4f68a497John McCall 1807768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis method->addAttr(new (S.Context) ObjCMethodFamilyAttr(Attr.getRange(), 1808f85e193739c953358c865005855253af4f68a497John McCall S.Context, family)); 1809d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall} 1810d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 18111b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCExceptionAttr(Sema &S, Decl *D, 18121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 18131731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 18140db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 1815bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18160db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 18170db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 18180db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 18190db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 18200db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1821bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1822768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getRange(), S.Context)); 18230db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 18240db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 18251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCNSObject(Sema &S, Decl *D, const AttributeList &Attr) { 1826fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 18272b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1828fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1829fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1830162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 1831fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 1832fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 18336217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 1834fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 1835fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1836fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1837fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1838f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek else if (!isa<ObjCPropertyDecl>(D)) { 1839f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // It is okay to include this attribute on properties, e.g.: 1840f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // 1841f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // @property (retain, nonatomic) struct Bork *Q __attribute__((NSObject)); 1842f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // 1843f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // In this case it follows tradition and suppresses an error in the above 1844f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // case. 18459b2eb7b1a1bdd1fe4acb200b448312ef407283dfFariborz Jahanian S.Diag(D->getLocation(), diag::warn_nsobject_attribute); 1846f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek } 1847768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getRange(), S.Context)); 1848fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 1849fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 1850bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 18511b03c8719e2e45cf2769430335d7e71f18e6634aChandler CarruthhandleOverloadableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1852f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 18532b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1854f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1855f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1856f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1857f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 1858f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 1859f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1860f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1861f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1862768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) OverloadableAttr(Attr.getRange(), S.Context)); 1863f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 1864f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 18651b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleBlocksAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1866bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1867fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 18683c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 18699eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 18709eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1871bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18729eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 18733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 18749eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 18759eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1876bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1877cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 187892e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 18799eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 18809eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 1881fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 18823c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 18839eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 18849eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1885bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1886768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) BlocksAttr(Attr.getRange(), S.Context, type)); 18879eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 18889eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 18891b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSentinelAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1890770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 1891770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 1892bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 1893770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1894bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1895bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18963323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall unsigned sentinel = 0; 1897770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 18987a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 1899770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1900ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1901ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1902fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 19033c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1904770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1905770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1906bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19073323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall if (Idx.isSigned() && Idx.isNegative()) { 1908fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1909fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1910770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1911770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 19123323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall 19133323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall sentinel = Idx.getZExtValue(); 1914770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1915770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 19163323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall unsigned nullPos = 0; 1917770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 19187a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(1); 1919770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1920ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1921ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1922fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 19233c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1924770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1925770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1926770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1927bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19283323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall if ((Idx.isSigned() && Idx.isNegative()) || nullPos > 1) { 1929770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1930770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1931fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1932fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1933770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1934770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1935770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1936770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 193787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 19383323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall const FunctionType *FT = FD->getType()->castAs<FunctionType>(); 1939897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1940897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1941897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1942897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1943bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1944897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 19453bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1946770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1947bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 194887c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 1949770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 19503bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1951770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 19522f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1953a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman } else if (BlockDecl *BD = dyn_cast<BlockDecl>(D)) { 1954a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman if (!BD->isVariadic()) { 1955a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 1; 1956a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman return; 1957a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman } 195887c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 19592f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1960daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 196187c44604325578b8de07d768391c1c9432404f5aChandler Carruth const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(D) 1962f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 19632f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 19643bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 19653bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 19662f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 19672f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1968ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 19692f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1970883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 19712f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 19722f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1973770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1974fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1975883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1976770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1977770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1978768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SentinelAttr(Attr.getRange(), S.Context, sentinel, 1979f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher nullPos)); 1980770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1981770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 19821b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWarnUnusedResult(Sema &S, Decl *D, const AttributeList &Attr) { 1983026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 19841731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 1985026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1986026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1987f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1988026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1989883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 1990026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1991026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1992bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1993f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1994f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1995f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1996f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1997f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1998f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1999f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 2000f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 2001f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 2002f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 2003f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 2004f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 2005768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getRange(), S.Context)); 2006026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 2007026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 20081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakAttr(Sema &S, Decl *D, const AttributeList &Attr) { 20096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 201087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.hasParameterOrArguments()) { 201187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 20126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 20136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 20146e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 201587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 201613c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian if (isa<CXXRecordDecl>(D)) { 201713c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian D->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); 201813c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian return; 201913c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian } 202087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 202187c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedVariableOrFunction; 2022f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 2023f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 2024f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 202587c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 2026332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 2027332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // 'weak' only applies to declarations with external linkage. 2028332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (hasEffectivelyInternalLinkage(nd)) { 202987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_weak_static); 20306e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 20316e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 2032bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2033768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis nd->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); 20346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 20356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 20361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakImportAttr(Sema &S, Decl *D, const AttributeList &Attr) { 20376e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 20381731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 20396e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 20401731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 20416e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 20426e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 20436e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 20440a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (!D->canBeWeakImported(isDef)) { 20450a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (isDef) 20460a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Attr.getLoc(), 20470a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor diag::warn_attribute_weak_import_invalid_on_definition) 20480a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << "weak_import" << 2 /*variable and function*/; 2049def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D) || 2050bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor (S.Context.getTargetInfo().getTriple().isOSDarwin() && 205190eed219f4215adf300800ab7478f568c7a4b2a3Fariborz Jahanian (isa<ObjCInterfaceDecl>(D) || isa<EnumDecl>(D)))) { 2052def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor // Nothing to warn about here. 2053def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor } else 2054c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2055883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 20566e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 20576e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 20586e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 20596e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 2060768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakImportAttr(Attr.getRange(), S.Context)); 20616e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 20626e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 20631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleReqdWorkGroupSize(Sema &S, Decl *D, 20641b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 20656f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 20661731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 3)) 20676f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 20686f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 20696f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 20706f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 20717a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(i); 20726f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 2073ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 2074ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 20756f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 20766f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 20776f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 20786f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 20796f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 20806f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 2081768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getRange(), S.Context, 2082cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 20836f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 20846f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 20856f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 20861b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSectionAttr(Sema &S, Decl *D, const AttributeList &Attr) { 208717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 20881731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 208917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 209017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 209117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 209217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 20937a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 2094797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 209517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 2096797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 209717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 209817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 20991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2100797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 2101bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor std::string Error = S.Context.getTargetInfo().isValidSectionSpecifier(SE->getString()); 2102a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 2103a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 2104a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 2105797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 2106797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 21071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2108a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 2109a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 2110a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 2111a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 2112a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 2113a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 2114768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SectionAttr(Attr.getRange(), S.Context, 2115f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 211617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 211717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 21186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 21191b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNothrowAttr(Sema &S, Decl *D, const AttributeList &Attr) { 21206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 2121831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 21223c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 21236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 21246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2125b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 212687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (NoThrowAttr *Existing = D->getAttr<NoThrowAttr>()) { 2127b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 2128ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis Existing->setRange(Attr.getRange()); 2129b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 2130768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoThrowAttr(Attr.getRange(), S.Context)); 2131b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 21326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 21336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 21341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2135232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 2136831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 21373c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2138232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 2139232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 2140bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 214187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ConstAttr *Existing = D->getAttr<ConstAttr>()) { 2142b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 2143ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis Existing->setRange(Attr.getRange()); 2144b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 2145768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ConstAttr(Attr.getRange(), S.Context)); 2146b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2147232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 2148232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 21491b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePureAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2150232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 21511731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2152232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 2153bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2154768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PureAttr(Attr.getRange(), S.Context)); 2155232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 2156232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 21571b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCleanupAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2158bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 2159f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2160f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2161f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2162bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2163f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 2164f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2165f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2166f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2167bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 216887c44604325578b8de07d768391c1c9432404f5aChandler Carruth VarDecl *VD = dyn_cast<VarDecl>(D); 2169bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2170f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 2171f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 2172f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2173f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2174bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2175f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 2176c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 2177f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 2178f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis = S.LookupSingleName(S.TUScope, Attr.getParameterName(), 2179f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis Attr.getParameterLoc(), Sema::LookupOrdinaryName); 2180f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 2181f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << 2182f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 2183f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2184f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2185bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2186f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 2187f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 2188f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 2189f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_arg_not_function) 2190f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 2191f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2192f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2193f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 2194f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 2195f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 2196f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_func_must_take_one_arg) 2197f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 2198f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2199f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2200bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 220189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 220289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 220389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 220489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 2205b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), 2206b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor ParamTy, Ty) != Sema::Compatible) { 2207f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 220889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 220989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 221089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 221189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 2212bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2213768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CleanupAttr(Attr.getRange(), S.Context, FD)); 22145f2987c11491edb186401d4e8eced275f0ea7c5eEli Friedman S.MarkFunctionReferenced(Attr.getParameterLoc(), FD); 2215f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 2216f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 2217bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 2218bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 22191b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatArgAttr(Sema &S, Decl *D, const AttributeList &Attr) { 22201731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 22215b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 22221731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 222387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 22245b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2225883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 22265b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 22275b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 222807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 222907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 223007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 223187c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 223287c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 22335b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 223407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 22355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 22367a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 22375b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 2238ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 2239ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 22405b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 22415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 22425b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 22435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 2244bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 22465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 22475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 22485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 22495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 2250bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 2252bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 225307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 225407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (ArgIdx == 0) { 225507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 225607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "format_arg" << IdxExpr->getSourceRange(); 225707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 225807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 225907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth ArgIdx--; 226007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 226107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 22625b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 226387c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 2264bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 22665b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 22675b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 22685b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 22696217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 22705b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 22715b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2272bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 22735b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 22745b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 2275bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 227687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Ty = getFunctionOrMethodResultType(D); 22775b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 22785b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 22795b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 22806217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 22815b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 22825b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 2283bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 22845b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 22855b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 2286bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 2287bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2288768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FormatArgAttr(Attr.getRange(), S.Context, 228907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth Idx.getZExtValue())); 22905b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 22915b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 22922b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 22932b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 22942b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 22952b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 22962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 22973c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 22982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 22992b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 23002b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 23012b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 23022b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 23035f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnerstatic FormatAttrKind getFormatAttrKind(StringRef Format) { 23042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 23052b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 23062b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 23072b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 23082b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 23092b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 23102b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 23112b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 23122b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 23132b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 231469d53845c68a4f01920b58ba6ce507d78220689cJean-Daniel Dupas Format == "strfmon" || Format == "cmn_err" || Format == "vcmn_err" || 2315cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "zcmn_err" || 2316cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "kprintf") // OpenBSD. 23172b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 23182b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 2319bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 2320bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 23213c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 23223c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 23232b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 23242b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 23252b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 2326521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 2327521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 23281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleInitPriorityAttr(Sema &S, Decl *D, 23291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 23304e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().CPlusPlus) { 2331521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2332521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2333521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 2334521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 233587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) || S.getCurFunctionOrMethodDecl()) { 2336b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 2337b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 2338b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 2339b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 234087c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = dyn_cast<VarDecl>(D)->getType(); 2341b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 2342b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 2343b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 2344b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 2345b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 2346b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 2347b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 2348b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 2349521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 2350521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2351521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2352521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2353521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 23547a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *priorityExpr = Attr.getArg(0); 2355b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 2356521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 2357521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 2358521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 2359521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 2360521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 2361521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2362521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2363521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 23649f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 2365521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 2366521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 2367521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 2368521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2369521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2370521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 2371768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) InitPriorityAttr(Attr.getRange(), S.Context, 2372f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher prioritynum)); 2373521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 2374521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 2375bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 2376bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 23771b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatAttr(Sema &S, Decl *D, const AttributeList &Attr) { 23786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2379545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 2380fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 23813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 23826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2385545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 23863c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 23876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 239087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethodOrBlock(D) || !hasFunctionProto(D)) { 2391fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2392883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 23936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 23946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 23956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 239607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 239707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 239887c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 239987c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 24006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 24016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24025f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Format = Attr.getParameterName()->getName(); 24036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 24052b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 24062b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 24072b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 24082b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 24092b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 24103c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 24113c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 24123c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 24133c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 24142b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 2415fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 241601eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 24176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 24217a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 2422803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 2423ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 2424ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 2425fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 24263c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 24276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 2431fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 24323c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 24336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 24376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 2438bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24394a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 24404a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 244107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 244207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_format_attribute_implicit_this_format_string) 244307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << IdxExpr->getSourceRange(); 24444a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 24454a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 24464a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 24474a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 24481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 245087c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 24516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24522b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 2453085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 2454fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2455fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 2456085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 2457085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 24582b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 2459390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 2460390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 2461803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 2462390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 2463fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2464fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 24656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2466bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 24676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 24686217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 2469390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 2470fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2471fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 24726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 24767a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *FirstArgExpr = Attr.getArg(1); 2477803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 2478ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 2479ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 2480fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 24813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 24826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 24866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 248787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethodVariadic(D)) { 24886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 24896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 249087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocation(), diag::err_format_attribute_requires_variadic); 24916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24953c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 24963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 24972b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 24986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 2499fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 2500fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 25016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 25036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 25046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 2505fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 25063c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 25076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 25096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2510b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // Check whether we already have an equivalent format attribute. 2511b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor for (specific_attr_iterator<FormatAttr> 251287c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<FormatAttr>(), 251387c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<FormatAttr>(); 2514b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor i != e ; ++i) { 2515b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor FormatAttr *f = *i; 2516b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (f->getType() == Format && 2517b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->getFormatIdx() == (int)Idx.getZExtValue() && 2518b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->getFirstArg() == (int)FirstArg.getZExtValue()) { 2519b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // If we don't have a valid location for this attribute, adopt the 2520b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // location. 2521b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (f->getLocation().isInvalid()) 2522ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis f->setRange(Attr.getRange()); 2523b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor return; 2524b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2525b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2526b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 2527768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FormatAttr(Attr.getRange(), S.Context, Format, 2528cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 25292b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 25306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 25316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25321b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleTransparentUnionAttr(Sema &S, Decl *D, 25331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 25346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 25351731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 25366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25371731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 25386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25390c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 25400c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 254187c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D); 25420c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 25430c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 25440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 254587c44604325578b8de07d768391c1c9432404f5aChandler Carruth RD = dyn_cast<RecordDecl>(D); 25460c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 25470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 2548fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2549883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedUnion; 25506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 25526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25535e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall if (!RD->isCompleteDefinition()) { 2554bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 25550c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 25560c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 25570c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 25580c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 255917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 256017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 25610c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 25620c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 25630c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 25640c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 2565bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 25660c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 25670c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 256890cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 2569bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 257090cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 257190cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 25720c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 25730c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 2574bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 25750c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 25760c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 25770c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 25780c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 25790c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 25800c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 25810c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 25820c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 2583bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 25840c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 2585bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 25860c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 25870c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 25880c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 2589bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 25900c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 25910c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 2592bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 2593bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 2594bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 25956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2596768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getRange(), S.Context)); 25976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 25986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25991b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnnotateAttr(Sema &S, Decl *D, const AttributeList &Attr) { 26006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 26011731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 26026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 26031731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 26047a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 2605797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 2606bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 26076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 26086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 26096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 2610797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 26116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 26126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 261377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 261477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge // Don't duplicate annotations that are already set. 261577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge for (specific_attr_iterator<AnnotateAttr> 261677f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge i = D->specific_attr_begin<AnnotateAttr>(), 261777f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge e = D->specific_attr_end<AnnotateAttr>(); i != e; ++i) { 261877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge if ((*i)->getAnnotation() == SE->getString()) 261977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge return; 262077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge } 2621768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AnnotateAttr(Attr.getRange(), S.Context, 2622f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 26236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 26246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 26251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlignedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 26266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 2627545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 26283c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 26296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 26306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2631bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2632bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 2633bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 2634bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 26356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2636545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 2637768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AlignedAttr(Attr.getRange(), S.Context, true, 0)); 26384ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 26394ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 26404ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 2641768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis S.AddAlignedAttr(Attr.getRange(), D, Attr.getArg(0)); 26424ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 26434ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 2644768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidisvoid Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, Expr *E) { 26450b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne // FIXME: Handle pack-expansions here. 26460b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne if (DiagnoseUnexpandedParameterPack(E)) 26470b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne return; 26480b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne 26494ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 26504ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 2651768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, E)); 26526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 26536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2654bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2655768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis SourceLocation AttrLoc = AttrRange.getBegin(); 2656cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 265749e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 2658282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith ExprResult ICE = 2659282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith VerifyIntegerConstantExpression(E, &Alignment, 2660282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith PDiag(diag::err_attribute_argument_not_int) << "aligned", 2661282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith /*AllowFold*/ false); 2662282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith if (ICE.isInvalid()) 266349e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 2664396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 26654ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 26664ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 2667396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 2668396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 2669396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 2670282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, ICE.take())); 2671cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 2672cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 2673768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidisvoid Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, TypeSourceInfo *TS) { 2674cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 2675cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 2676768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, false, TS)); 2677cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 26786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2679fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2680d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth/// handleModeAttr - This attribute modifies the width of a decl with primitive 2681bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 2682fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 2683bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 2684bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 2685bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 26861b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleModeAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2687fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 2688fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 2689fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2690fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 26911731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2692fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 26931731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2694fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2695fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 2696fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 26970b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 2698fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2699fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2700210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 27015f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str = Attr.getParameterName()->getName(); 2702fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2703fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 2704210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 2705210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 2706fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2707fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 2708fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 270973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 2710210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 2711fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 271273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 271373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 271473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 271573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 271673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 271773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 271873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 271973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 272073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 272173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 272273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 272373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 272473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 272573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 272673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 272773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2728fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2729fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 2730fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 2731fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 2732210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 2733bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getPointerWidth(0); 2734210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 2735bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getCharWidth(); 2736fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2737fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 2738210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 2739bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getPointerWidth(0); 2740fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2741fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2742fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2743fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 2744162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) 2745fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 2746fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 2747fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 2748fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 2749fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 2750768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << "mode" << Attr.getRange(); 2751fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2752fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 275373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2754183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 275573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 275673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 27572ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 275873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 275973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 276073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 276173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 276273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 276373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 276473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 276573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 276673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2767390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 2768390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 2769390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 2770390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 2771f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 2772f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 2773fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 2774fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 2775fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 27763c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 2777fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2778fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 27793c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2780fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2781fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 278273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 278373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 278473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 278573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2786fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 27870b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 2788fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 27890b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 2790fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2791fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 279273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 279373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 279473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 279573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2796fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 27970b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 2798fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 27990b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 2800fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2801fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 2802fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 28030b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 2804fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 28050b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 2806fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 28070b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 2808fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2809fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 2810fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 28110b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 2812fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 2813bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getLongWidth() == 64) 2814aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 2815aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2816aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 2817fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 2818bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getLongWidth() == 64) 2819aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 2820aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2821aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 2822fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 282373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 282473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 282573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2826f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 2827f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 2828f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2829f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 2830f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 2831f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 2832f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 2833f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 2834f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 283573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2836fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2837fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 283873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 283973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 2840fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2841fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2842fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 2843162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 2844ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 2845a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 2846ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 2847fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 2848fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 28490744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 28501b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoDebugAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2851d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 28521731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2853d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2854e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 285587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 2856d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2857883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2858d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2859d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2860bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2861768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoDebugAttr(Attr.getRange(), S.Context)); 2862d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 2863d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 28641b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 28655bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 28661731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 28675bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 28681731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2869bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 287087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 28715bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2872883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 28735bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 28745bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2875bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2876768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoInlineAttr(Attr.getRange(), S.Context)); 28775bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 28785bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 28791b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInstrumentFunctionAttr(Sema &S, Decl *D, 28801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 28817255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 28821731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 28837255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 28841731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 28857255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 288687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 28877255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2888883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 28897255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 28907255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 28917255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2892768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getRange(), 2893f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 28947255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 28957255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 28961b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstantAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2897ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2898ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2899831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 2900ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2901ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2902ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2903ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 290487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 2905ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2906883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2907ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2908ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2909ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2910768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getRange(), S.Context)); 2911ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2912ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; 2913ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2914ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2915ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 29161b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeviceAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2917ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2918ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2919ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2920ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2921ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2922ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2923ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 292487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 2925ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2926883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 2927ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2928ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2929ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2930768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getRange(), S.Context)); 2931ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2932ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; 2933ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2934ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2935ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 29361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGlobalAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2937ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2938ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 29391731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2940ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2941ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 294287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 2943ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2944883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2945ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2946ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2947ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 294887c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *FD = cast<FunctionDecl>(D); 29492c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (!FD->getResultType()->isVoidType()) { 2950723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); 29512c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { 29522c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 29532c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType() 29542c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), 29552c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne "void"); 29562c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } else { 29572c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 29582c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType(); 29592c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 29602c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne return; 29612c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 29622c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne 2963768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getRange(), S.Context)); 2964ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2965ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; 2966ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2967ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2968ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 29691b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleHostAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2970ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2971ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 29721731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2973ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 29741731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2975ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 297687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 2977ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2978883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2979ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2980ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2981ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2982768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAHostAttr(Attr.getRange(), S.Context)); 2983ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2984ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; 2985ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2986ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2987ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 29881b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSharedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2989ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2990ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 29911731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2992ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 29931731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2994ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 299587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 2996ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2997883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2998ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2999ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3000ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 3001768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDASharedAttr(Attr.getRange(), S.Context)); 3002ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 3003ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; 3004ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3005ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 3006ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 30071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGNUInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 300826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 30091731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 301026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 3011bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 301287c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); 3013c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 301426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3015883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 301626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 301726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 3018bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 30190130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 3020cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 3021c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 3022c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 3023bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3024768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GNUInlineAttr(Attr.getRange(), S.Context)); 302526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 302626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 30271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCallConvAttr(Sema &S, Decl *D, const AttributeList &Attr) { 302887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3029711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 303087c44604325578b8de07d768391c1c9432404f5aChandler Carruth // Diagnostic is emitted elsewhere: here we store the (valid) Attr 3031e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 3032711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 303387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckCallingConvAttr(Attr, CC)) 3034711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3035e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 303687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 303787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 303887c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 3039711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3040711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3041711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 304287c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 3043e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 3044768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FastCallAttr(Attr.getRange(), S.Context)); 3045e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 3046e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 3047768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) StdCallAttr(Attr.getRange(), S.Context)); 3048e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 3049f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 3050768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ThisCallAttr(Attr.getRange(), S.Context)); 305104633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 3052e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 3053768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CDeclAttr(Attr.getRange(), S.Context)); 3054e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 305552fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 3056768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PascalAttr(Attr.getRange(), S.Context)); 305752fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 3058414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: { 305987c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *Arg = Attr.getArg(0); 3060414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 30615cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 306287c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3063414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 306487c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3065414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 3066414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3067414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 30685f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3069414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PcsAttr::PCSType PCS; 3070414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") 3071414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS; 3072414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else if (StrRef == "aapcs-vfp") 3073414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS_VFP; 3074414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else { 307587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_invalid_pcs); 307687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3077414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 3078414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3079414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 3080768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PcsAttr(Attr.getRange(), S.Context, PCS)); 3081414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3082e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 3083e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 3084e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 3085e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 3086e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 30871b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOpenCLKernelAttr(Sema &S, Decl *D, const AttributeList &Attr){ 308856aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 3089768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getRange(), S.Context)); 3090f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne} 3091f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 3092711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { 3093711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 3094711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3095711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3096831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if ((attr.getNumArgs() != 0 && 3097831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek !(attr.getKind() == AttributeList::AT_pcs && attr.getNumArgs() == 1)) || 3098831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek attr.getParameterName()) { 3099711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 3100711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3101711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3102ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 310355d3aaf9a537888734762170823daf750ea9036dEli Friedman 3104414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // TODO: diagnose uses of these conventions on the wrong target. Or, better 3105414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // move to TargetAttributesSema one day. 3106711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 3107711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 3108711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 3109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 3110711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; 3111711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: CC = CC_X86Pascal; break; 3112414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: { 3113414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Expr *Arg = attr.getArg(0); 3114414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 31155cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 3116414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 3117414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 3118414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov attr.setInvalid(); 3119414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return true; 3120414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3121414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 31225f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3123414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") { 3124414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS; 3125414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 3126414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } else if (StrRef == "aapcs-vfp") { 3127414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS_VFP; 3128414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 3129414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3130414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // FALLS THROUGH 3131414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 31327530c034c0c71a64c5a9173206d9742ae847af8bDavid Blaikie default: llvm_unreachable("unexpected attribute kind"); 3133711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3134711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3135711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3136711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 3137711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 31381b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleRegparmAttr(Sema &S, Decl *D, const AttributeList &Attr) { 313987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3140711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3141711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned numParams; 314287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckRegparmAttr(Attr, numParams)) 3143711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3144711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 314587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 314687c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 314787c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 3148ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 3149ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 315055d3aaf9a537888734762170823daf750ea9036dEli Friedman 3151768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) RegparmAttr(Attr.getRange(), S.Context, numParams)); 3152711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 3153711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3154711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Checks a regparm attribute, returning true if it is ill-formed and 3155711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// otherwise setting numParams to the appropriate value. 315687c44604325578b8de07d768391c1c9432404f5aChandler Carruthbool Sema::CheckRegparmAttr(const AttributeList &Attr, unsigned &numParams) { 315787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.isInvalid()) 3158711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3159711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 316087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 1) { 316187c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 316287c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3163711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3164711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3165711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 316687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *NumParamsExpr = Attr.getArg(0); 316755d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 3168ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 3169711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { 317087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 317155d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 317287c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3173711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 317455d3aaf9a537888734762170823daf750ea9036dEli Friedman } 317555d3aaf9a537888734762170823daf750ea9036dEli Friedman 3176bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (Context.getTargetInfo().getRegParmMax() == 0) { 317787c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 317855d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 317987c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3180711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 318155d3aaf9a537888734762170823daf750ea9036dEli Friedman } 318255d3aaf9a537888734762170823daf750ea9036dEli Friedman 3183711c52bb20d0c69063b52a99826fb7d2835501f1John McCall numParams = NumParams.getZExtValue(); 3184bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (numParams > Context.getTargetInfo().getRegParmMax()) { 318587c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 3186bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor << Context.getTargetInfo().getRegParmMax() << NumParamsExpr->getSourceRange(); 318787c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3188711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 318955d3aaf9a537888734762170823daf750ea9036dEli Friedman } 319055d3aaf9a537888734762170823daf750ea9036dEli Friedman 3191711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3192ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 3193ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 31941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleLaunchBoundsAttr(Sema &S, Decl *D, const AttributeList &Attr){ 31957b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (S.LangOpts.CUDA) { 31967b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne // check the attribute arguments. 31977b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { 3198bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall // FIXME: 0 is not okay. 3199bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 32007b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 32017b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 32027b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 320387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 32047b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3205883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 32067b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 32077b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 32087b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 32097b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MaxThreadsExpr = Attr.getArg(0); 32107b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MaxThreads(32); 32117b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MaxThreadsExpr->isTypeDependent() || 32127b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreadsExpr->isValueDependent() || 32137b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { 32147b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 32157b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); 32167b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 32177b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 32187b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 32197b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MinBlocks(32); 32207b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() > 1) { 32217b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MinBlocksExpr = Attr.getArg(1); 32227b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MinBlocksExpr->isTypeDependent() || 32237b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocksExpr->isValueDependent() || 32247b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { 32257b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 32267b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); 32277b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 32287b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 32297b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 32307b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 3231768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getRange(), S.Context, 32327b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreads.getZExtValue(), 32337b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocks.getZExtValue())); 32347b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } else { 32357b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; 32367b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 32377b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne} 32387b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 32390744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 3240b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 3241b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 3242b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3243c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { 32446c73a2975ba9112787380abd878876336957b3f6Douglas Gregor return type->isDependentType() || 32456c73a2975ba9112787380abd878876336957b3f6Douglas Gregor type->isObjCObjectPointerType() || 32466c73a2975ba9112787380abd878876336957b3f6Douglas Gregor S.Context.isObjCNSObjectType(type); 3247c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3248c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { 32496c73a2975ba9112787380abd878876336957b3f6Douglas Gregor return type->isDependentType() || 32506c73a2975ba9112787380abd878876336957b3f6Douglas Gregor type->isPointerType() || 32516c73a2975ba9112787380abd878876336957b3f6Douglas Gregor isValidSubjectOfNSAttribute(S, type); 3252c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3253c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 32541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 325587c44604325578b8de07d768391c1c9432404f5aChandler Carruth ParmVarDecl *param = dyn_cast<ParmVarDecl>(D); 3256c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!param) { 325787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3258768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << ExpectedParameter; 3259c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3260c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3261c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3262c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK, cf; 326387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getKind() == AttributeList::AT_ns_consumed) { 3264c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, param->getType()); 3265c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 3266c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } else { 3267c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, param->getType()); 3268c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 3269c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3270c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3271c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 327287c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) 3273768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << cf; 3274c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3275c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3276c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3277c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (cf) 3278768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis param->addAttr(::new (S.Context) CFConsumedAttr(Attr.getRange(), S.Context)); 3279c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall else 3280768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis param->addAttr(::new (S.Context) NSConsumedAttr(Attr.getRange(), S.Context)); 3281c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3282c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 32831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumesSelfAttr(Sema &S, Decl *D, 32841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 328587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 328687c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3287768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << ExpectedMethod; 3288c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3289c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3290c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3291768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSConsumesSelfAttr(Attr.getRange(), S.Context)); 3292c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3293c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 32941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSReturnsRetainedAttr(Sema &S, Decl *D, 32951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 3296b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3297c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall QualType returnType; 3298bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 329987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 3300c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = MD->getResultType(); 330187c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) 3302831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian returnType = PD->getType(); 33034e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie else if (S.getLangOpts().ObjCAutoRefCount && hasDeclarator(D) && 330487c44604325578b8de07d768391c1c9432404f5aChandler Carruth (Attr.getKind() == AttributeList::AT_ns_returns_retained)) 3305f85e193739c953358c865005855253af4f68a497John McCall return; // ignore: was handled as a type attribute 330687c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 3307c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = FD->getResultType(); 33085dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 330987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3310768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() 3311883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedFunctionOrMethod; 3312b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3313b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 3314bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3315c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK; 3316c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool cf; 331787c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 33187530c034c0c71a64c5a9173206d9742ae847af8bDavid Blaikie default: llvm_unreachable("invalid ownership attribute"); 3319c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 3320c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_retained: 3321c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_not_retained: 3322c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, returnType); 3323c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 3324c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 3325c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3326c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_retained: 3327c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_not_retained: 3328c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, returnType); 3329c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 3330c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 3331c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3332c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3333c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 333487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 3335768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << isa<ObjCMethodDecl>(D) << cf; 3336bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 33375dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 3338bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 333987c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 3340b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 3341b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("invalid ownership attribute"); 3342c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 3343768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(Attr.getRange(), 3344c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Context)); 3345c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 334631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 3347768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getRange(), 3348f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 334931c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 335031c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 3351768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getRange(), 3352f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 335331c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 3354b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 3355768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getRange(), 3356f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 3357b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3358b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 3359768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getRange(), 3360f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 3361b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3362b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 3363b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 3364b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3365dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCallstatic void handleObjCReturnsInnerPointerAttr(Sema &S, Decl *D, 3366dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall const AttributeList &attr) { 3367dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall SourceLocation loc = attr.getLoc(); 3368dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3369dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(D); 3370dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 337194d55d7ecdd693788a8f3910a0da1b5ecdaa8a86Fariborz Jahanian if (!method) { 33720e78afbb15c6f51932e562e620f714c37cf914e6Fariborz Jahanian S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3373f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << SourceRange(loc, loc) << attr.getName() << ExpectedMethod; 3374dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall return; 3375dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall } 3376dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3377dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall // Check that the method returns a normal pointer. 3378dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall QualType resultType = method->getResultType(); 3379f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian 3380f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian if (!resultType->isReferenceType() && 3381f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian (!resultType->isPointerType() || resultType->isObjCRetainableType())) { 3382dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall S.Diag(method->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 3383dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << SourceRange(loc) 3384dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << attr.getName() << /*method*/ 1 << /*non-retainable pointer*/ 2; 3385dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3386dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall // Drop the attribute. 3387dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall return; 3388dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall } 3389dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3390dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall method->addAttr( 3391768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis ::new (S.Context) ObjCReturnsInnerPointerAttr(attr.getRange(), S.Context)); 3392dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall} 3393dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 33948dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall/// Handle cf_audited_transfer and cf_unknown_transfer. 33958dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCallstatic void handleCFTransferAttr(Sema &S, Decl *D, const AttributeList &A) { 33968dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (!isa<FunctionDecl>(D)) { 33978dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3398f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << A.getRange() << A.getName() << ExpectedFunction; 33998dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall return; 34008dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 34018dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 34028dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall bool IsAudited = (A.getKind() == AttributeList::AT_cf_audited_transfer); 34038dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 34048dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall // Check whether there's a conflicting attribute already present. 34058dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Attr *Existing; 34068dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (IsAudited) { 34078dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Existing = D->getAttr<CFUnknownTransferAttr>(); 34088dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } else { 34098dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Existing = D->getAttr<CFAuditedTransferAttr>(); 34108dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 34118dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (Existing) { 34128dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall S.Diag(D->getLocStart(), diag::err_attributes_are_not_compatible) 34138dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << A.getName() 34148dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << (IsAudited ? "cf_unknown_transfer" : "cf_audited_transfer") 34158dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << A.getRange() << Existing->getRange(); 34168dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall return; 34178dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 34188dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 34198dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall // All clear; add the attribute. 34208dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (IsAudited) { 34218dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall D->addAttr( 34228dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall ::new (S.Context) CFAuditedTransferAttr(A.getRange(), S.Context)); 34238dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } else { 34248dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall D->addAttr( 34258dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall ::new (S.Context) CFUnknownTransferAttr(A.getRange(), S.Context)); 34268dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 34278dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall} 34288dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 3429fe98da0fa352462c02db037360788748f95466f7John McCallstatic void handleNSBridgedAttr(Sema &S, Scope *Sc, Decl *D, 3430fe98da0fa352462c02db037360788748f95466f7John McCall const AttributeList &Attr) { 3431fe98da0fa352462c02db037360788748f95466f7John McCall RecordDecl *RD = dyn_cast<RecordDecl>(D); 3432fe98da0fa352462c02db037360788748f95466f7John McCall if (!RD || RD->isUnion()) { 3433fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3434f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << Attr.getRange() << Attr.getName() << ExpectedStruct; 3435fe98da0fa352462c02db037360788748f95466f7John McCall } 3436fe98da0fa352462c02db037360788748f95466f7John McCall 3437fe98da0fa352462c02db037360788748f95466f7John McCall IdentifierInfo *ParmName = Attr.getParameterName(); 3438fe98da0fa352462c02db037360788748f95466f7John McCall 3439fe98da0fa352462c02db037360788748f95466f7John McCall // In Objective-C, verify that the type names an Objective-C type. 3440fe98da0fa352462c02db037360788748f95466f7John McCall // We don't want to check this outside of ObjC because people sometimes 3441fe98da0fa352462c02db037360788748f95466f7John McCall // do crazy C declarations of Objective-C types. 34424e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (ParmName && S.getLangOpts().ObjC1) { 3443fe98da0fa352462c02db037360788748f95466f7John McCall // Check for an existing type with this name. 3444fe98da0fa352462c02db037360788748f95466f7John McCall LookupResult R(S, DeclarationName(ParmName), Attr.getParameterLoc(), 3445fe98da0fa352462c02db037360788748f95466f7John McCall Sema::LookupOrdinaryName); 3446fe98da0fa352462c02db037360788748f95466f7John McCall if (S.LookupName(R, Sc)) { 3447fe98da0fa352462c02db037360788748f95466f7John McCall NamedDecl *Target = R.getFoundDecl(); 3448fe98da0fa352462c02db037360788748f95466f7John McCall if (Target && !isa<ObjCInterfaceDecl>(Target)) { 3449fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(D->getLocStart(), diag::err_ns_bridged_not_interface); 3450fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(Target->getLocStart(), diag::note_declared_at); 3451fe98da0fa352462c02db037360788748f95466f7John McCall } 3452fe98da0fa352462c02db037360788748f95466f7John McCall } 3453fe98da0fa352462c02db037360788748f95466f7John McCall } 3454fe98da0fa352462c02db037360788748f95466f7John McCall 3455fe98da0fa352462c02db037360788748f95466f7John McCall D->addAttr(::new (S.Context) NSBridgedAttr(Attr.getRange(), S.Context, 3456fe98da0fa352462c02db037360788748f95466f7John McCall ParmName)); 3457fe98da0fa352462c02db037360788748f95466f7John McCall} 3458fe98da0fa352462c02db037360788748f95466f7John McCall 34591b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCOwnershipAttr(Sema &S, Decl *D, 34601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 346187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3462f85e193739c953358c865005855253af4f68a497John McCall 346387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3464f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << Attr.getRange() << Attr.getName() << ExpectedVariable; 3465f85e193739c953358c865005855253af4f68a497John McCall} 3466f85e193739c953358c865005855253af4f68a497John McCall 34671b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCPreciseLifetimeAttr(Sema &S, Decl *D, 34681b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 346987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FieldDecl>(D)) { 347087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3471f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << Attr.getRange() << Attr.getName() << ExpectedVariable; 3472f85e193739c953358c865005855253af4f68a497John McCall return; 3473f85e193739c953358c865005855253af4f68a497John McCall } 3474f85e193739c953358c865005855253af4f68a497John McCall 347587c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *vd = cast<ValueDecl>(D); 3476f85e193739c953358c865005855253af4f68a497John McCall QualType type = vd->getType(); 3477f85e193739c953358c865005855253af4f68a497John McCall 3478f85e193739c953358c865005855253af4f68a497John McCall if (!type->isDependentType() && 3479f85e193739c953358c865005855253af4f68a497John McCall !type->isObjCLifetimeType()) { 348087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_objc_precise_lifetime_bad_type) 3481f85e193739c953358c865005855253af4f68a497John McCall << type; 3482f85e193739c953358c865005855253af4f68a497John McCall return; 3483f85e193739c953358c865005855253af4f68a497John McCall } 3484f85e193739c953358c865005855253af4f68a497John McCall 3485f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime = type.getObjCLifetime(); 3486f85e193739c953358c865005855253af4f68a497John McCall 3487f85e193739c953358c865005855253af4f68a497John McCall // If we have no lifetime yet, check the lifetime we're presumably 3488f85e193739c953358c865005855253af4f68a497John McCall // going to infer. 3489f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_None && !type->isDependentType()) 3490f85e193739c953358c865005855253af4f68a497John McCall lifetime = type->getObjCARCImplicitLifetime(); 3491f85e193739c953358c865005855253af4f68a497John McCall 3492f85e193739c953358c865005855253af4f68a497John McCall switch (lifetime) { 3493f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_None: 3494f85e193739c953358c865005855253af4f68a497John McCall assert(type->isDependentType() && 3495f85e193739c953358c865005855253af4f68a497John McCall "didn't infer lifetime for non-dependent type?"); 3496f85e193739c953358c865005855253af4f68a497John McCall break; 3497f85e193739c953358c865005855253af4f68a497John McCall 3498f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Weak: // meaningful 3499f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Strong: // meaningful 3500f85e193739c953358c865005855253af4f68a497John McCall break; 3501f85e193739c953358c865005855253af4f68a497John McCall 3502f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_ExplicitNone: 3503f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Autoreleasing: 350487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_objc_precise_lifetime_meaningless) 3505f85e193739c953358c865005855253af4f68a497John McCall << (lifetime == Qualifiers::OCL_Autoreleasing); 3506f85e193739c953358c865005855253af4f68a497John McCall break; 3507f85e193739c953358c865005855253af4f68a497John McCall } 3508f85e193739c953358c865005855253af4f68a497John McCall 350987c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) 3510768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis ObjCPreciseLifetimeAttr(Attr.getRange(), S.Context)); 3511f85e193739c953358c865005855253af4f68a497John McCall} 3512f85e193739c953358c865005855253af4f68a497John McCall 3513f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 35149428772f16e379bcad35254251f96e3d1077c730Aaron Ballman switch (Attr.getKind()) { 35159428772f16e379bcad35254251f96e3d1077c730Aaron Ballman default: 35169428772f16e379bcad35254251f96e3d1077c730Aaron Ballman return false; 35179428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_dllimport: 35189428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_dllexport: 35199428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_uuid: 35209428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_deprecated: 35219428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_noreturn: 35229428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_nothrow: 35239428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_naked: 35249428772f16e379bcad35254251f96e3d1077c730Aaron Ballman case AttributeList::AT_noinline: 35259428772f16e379bcad35254251f96e3d1077c730Aaron Ballman return true; 35269428772f16e379bcad35254251f96e3d1077c730Aaron Ballman } 352711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet} 352811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 352911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 353011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet// Microsoft specific attribute handlers. 353111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 353211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 35331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUuidAttr(Sema &S, Decl *D, const AttributeList &Attr) { 353462ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (S.LangOpts.MicrosoftExt || S.LangOpts.Borland) { 353511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet // check the attribute arguments. 35361731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 353711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet return; 35381731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 353911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Expr *Arg = Attr.getArg(0); 354011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 35415cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 3542d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3543d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet << "uuid" << 1; 3544d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3545d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3546d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 35475f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3548d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 3549d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && 3550d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet StrRef.back() == '}'; 3551f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor 3552d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // Validate GUID length. 3553d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (IsCurly && StrRef.size() != 38) { 3554d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3555d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3556d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3557d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (!IsCurly && StrRef.size() != 36) { 3558d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3559d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3560d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3561d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 3562f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or 3563d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" 35645f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef::iterator I = StrRef.begin(); 3565f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson if (IsCurly) // Skip the optional '{' 3566f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson ++I; 3567f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson 3568f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson for (int i = 0; i < 36; ++i) { 3569d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (i == 8 || i == 13 || i == 18 || i == 23) { 3570d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (*I != '-') { 3571d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3572d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3573d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3574d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else if (!isxdigit(*I)) { 3575d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 3576d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3577d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3578d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet I++; 3579d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 358011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 3581768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UuidAttr(Attr.getRange(), S.Context, 358211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Str->getString())); 3583d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else 358411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; 3585f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 3586f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 3587b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 35880744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 35890744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 35900744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 35911b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessNonInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 35921b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 359360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne switch (Attr.getKind()) { 35941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_device: handleDeviceAttr (S, D, Attr); break; 35951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_host: handleHostAttr (S, D, Attr); break; 35961b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_overloadable:handleOverloadableAttr(S, D, Attr); break; 359760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne default: 359860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 359960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne } 360060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 3601e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 36021b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 36031b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 3604803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 3605e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_ibaction: handleIBAction(S, D, Attr); break; 3606e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_iboutlet: handleIBOutlet(S, D, Attr); break; 3607e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_iboutletcollection: 36081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleIBOutletCollection(S, D, Attr); break; 3609803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 3610207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case AttributeList::AT_opencl_image_access: 3611ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 36126e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 36134211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 36144211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 3615bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 3616bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 3617803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 361860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: 361960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: 362060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable: 362160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // Ignore, this is a non-inheritable attribute, handled 362260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // by ProcessNonInheritableDeclAttr. 362360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 36241b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_alias: handleAliasAttr (S, D, Attr); break; 36251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_aligned: handleAlignedAttr (S, D, Attr); break; 3626bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 36271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAlwaysInlineAttr (S, D, Attr); break; 3628b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 36291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAnalyzerNoReturnAttr (S, D, Attr); break; 36301b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_annotate: handleAnnotateAttr (S, D, Attr); break; 36311b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_availability:handleAvailabilityAttr(S, D, Attr); break; 3632bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 36331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleDependencyAttr (S, D, Attr); break; 36341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_common: handleCommonAttr (S, D, Attr); break; 36351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_constant: handleConstantAttr (S, D, Attr); break; 36361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_constructor: handleConstructorAttr (S, D, Attr); break; 36371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_deprecated: handleDeprecatedAttr (S, D, Attr); break; 36381b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_destructor: handleDestructorAttr (S, D, Attr); break; 36393068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 36401b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleExtVectorTypeAttr(S, scope, D, Attr); 36413068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 36421b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_format: handleFormatAttr (S, D, Attr); break; 36431b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_format_arg: handleFormatArgAttr (S, D, Attr); break; 36441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_global: handleGlobalAttr (S, D, Attr); break; 36451b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_gnu_inline: handleGNUInlineAttr (S, D, Attr); break; 36467b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne case AttributeList::AT_launch_bounds: 36471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleLaunchBoundsAttr(S, D, Attr); 36487b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne break; 36491b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_mode: handleModeAttr (S, D, Attr); break; 36501b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_malloc: handleMallocAttr (S, D, Attr); break; 36511b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_may_alias: handleMayAliasAttr (S, D, Attr); break; 36521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nocommon: handleNoCommonAttr (S, D, Attr); break; 36531b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nonnull: handleNonNullAttr (S, D, Attr); break; 3654dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 3655dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 3656dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 36571b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOwnershipAttr (S, D, Attr); break; 36581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_naked: handleNakedAttr (S, D, Attr); break; 36591b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_noreturn: handleNoReturnAttr (S, D, Attr); break; 36601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nothrow: handleNothrowAttr (S, D, Attr); break; 36611b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_shared: handleSharedAttr (S, D, Attr); break; 36621b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_vecreturn: handleVecReturnAttr (S, D, Attr); break; 3663b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3664b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributeList::AT_objc_ownership: 36651b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCOwnershipAttr(S, D, Attr); break; 3666f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_objc_precise_lifetime: 36671b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCPreciseLifetimeAttr(S, D, Attr); break; 3668f85e193739c953358c865005855253af4f68a497John McCall 3669dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall case AttributeList::AT_objc_returns_inner_pointer: 3670dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall handleObjCReturnsInnerPointerAttr(S, D, Attr); break; 3671dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3672fe98da0fa352462c02db037360788748f95466f7John McCall case AttributeList::AT_ns_bridged: 3673fe98da0fa352462c02db037360788748f95466f7John McCall handleNSBridgedAttr(S, scope, D, Attr); break; 3674fe98da0fa352462c02db037360788748f95466f7John McCall 36758dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall case AttributeList::AT_cf_audited_transfer: 36768dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall case AttributeList::AT_cf_unknown_transfer: 36778dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall handleCFTransferAttr(S, D, Attr); break; 36788dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 3679b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 3680c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_consumed: 36811b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_ns_consumed: handleNSConsumedAttr (S, D, Attr); break; 3682c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_consumes_self: 36831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSConsumesSelfAttr(S, D, Attr); break; 3684c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3685c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 368631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 368731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 3688b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 3689b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 36901b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSReturnsRetainedAttr(S, D, Attr); break; 3691b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3692e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_reqd_work_group_size: 36931b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleReqdWorkGroupSize(S, D, Attr); break; 36946f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 3695521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 36961b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleInitPriorityAttr(S, D, Attr); break; 3697521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 36981b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_packed: handlePackedAttr (S, D, Attr); break; 3699e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_ms_struct: handleMsStructAttr (S, D, Attr); break; 37001b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_section: handleSectionAttr (S, D, Attr); break; 37011b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_unavailable: handleUnavailableAttr (S, D, Attr); break; 3702e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_objc_arc_weak_reference_unavailable: 3703742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian handleArcWeakrefUnavailableAttr (S, D, Attr); 3704742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian break; 3705b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard case AttributeList::AT_objc_root_class: 3706b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard handleObjCRootClassAttr(S, D, Attr); 3707b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard break; 370871207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek case AttributeList::AT_objc_requires_property_definitions: 370971207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek handleObjCRequiresPropertyDefsAttr (S, D, Attr); 3710e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian break; 37111b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_unused: handleUnusedAttr (S, D, Attr); break; 3712f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola case AttributeList::AT_returns_twice: 3713f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola handleReturnsTwiceAttr(S, D, Attr); 3714f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola break; 37151b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_used: handleUsedAttr (S, D, Attr); break; 37161b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_visibility: handleVisibilityAttr (S, D, Attr); break; 37171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_warn_unused_result: handleWarnUnusedResult(S, D, Attr); 3718026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 37191b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weak: handleWeakAttr (S, D, Attr); break; 37201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weakref: handleWeakRefAttr (S, D, Attr); break; 37211b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weak_import: handleWeakImportAttr (S, D, Attr); break; 3722803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 37231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleTransparentUnionAttr(S, D, Attr); 3724803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 37250db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 37261b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCExceptionAttr(S, D, Attr); 37270db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 3728d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall case AttributeList::AT_objc_method_family: 37291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCMethodFamilyAttr(S, D, Attr); 3730d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall break; 3731e53ac8aea2d9e8bbb11191398ea3cc2edb2d171aMichael Han case AttributeList::AT_NSObject: handleObjCNSObject (S, D, Attr); break; 37321b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_blocks: handleBlocksAttr (S, D, Attr); break; 37331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_sentinel: handleSentinelAttr (S, D, Attr); break; 37341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_const: handleConstAttr (S, D, Attr); break; 37351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_pure: handlePureAttr (S, D, Attr); break; 37361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_cleanup: handleCleanupAttr (S, D, Attr); break; 37371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nodebug: handleNoDebugAttr (S, D, Attr); break; 37381b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_noinline: handleNoInlineAttr (S, D, Attr); break; 37391b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_regparm: handleRegparmAttr (S, D, Attr); break; 3740bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 374105f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 374205f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 37437255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 37441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNoInstrumentFunctionAttr(S, D, Attr); 37457255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 374604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 374704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 374804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 3749f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 375052fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 3751414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: 37521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleCallConvAttr(S, D, Attr); 375304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 3754f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne case AttributeList::AT_opencl_kernel_function: 37551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOpenCLKernelAttr(S, D, Attr); 3756f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne break; 375711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet case AttributeList::AT_uuid: 37581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleUuidAttr(S, D, Attr); 375911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet break; 3760fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 3761fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski // Thread safety attributes: 3762fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_guarded_var: 3763fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleGuardedVarAttr(S, D, Attr); 3764fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3765fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_pt_guarded_var: 3766fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleGuardedVarAttr(S, D, Attr, /*pointer = */true); 3767fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3768fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_scoped_lockable: 3769fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleLockableAttr(S, D, Attr, /*scoped = */true); 3770fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 377171efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany case AttributeList::AT_no_address_safety_analysis: 377271efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany handleNoAddressSafetyAttr(S, D, Attr); 377371efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany break; 3774fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_no_thread_safety_analysis: 3775fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleNoThreadSafetyAttr(S, D, Attr); 3776fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3777fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski case AttributeList::AT_lockable: 3778fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleLockableAttr(S, D, Attr); 3779fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 3780db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_guarded_by: 3781db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleGuardedByAttr(S, D, Attr); 3782db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3783db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_pt_guarded_by: 3784db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleGuardedByAttr(S, D, Attr, /*pointer = */true); 3785db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3786db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_lock_function: 3787db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockFunAttr(S, D, Attr, /*exclusive = */true); 3788db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3789db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_locks_required: 3790db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksRequiredAttr(S, D, Attr, /*exclusive = */true); 3791db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3792db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_exclusive_trylock_function: 3793db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleTrylockFunAttr(S, D, Attr, /*exclusive = */true); 3794db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3795db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_lock_returned: 3796db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockReturnedAttr(S, D, Attr); 3797db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3798db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_locks_excluded: 3799db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksExcludedAttr(S, D, Attr); 3800db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3801db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_lock_function: 3802db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockFunAttr(S, D, Attr); 3803db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3804db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_locks_required: 3805db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksRequiredAttr(S, D, Attr); 3806db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3807db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_shared_trylock_function: 3808db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleTrylockFunAttr(S, D, Attr); 3809db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3810db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_unlock_function: 3811db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleUnlockFunAttr(S, D, Attr); 3812db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3813db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_acquired_before: 3814db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleAcquireOrderAttr(S, D, Attr, /*before = */true); 3815db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3816db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski case AttributeList::AT_acquired_after: 3817db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleAcquireOrderAttr(S, D, Attr, /*before = */false); 3818db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 3819fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 3820803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 382182d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 382282d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 382382d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 38247d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 38257d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 3826803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 3827803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 3828803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 3829803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 383060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 383160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the attribute applies to decls. If the attribute is a type attribute, just 383260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 383360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 38341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, 38351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr, 383660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 383760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isInvalid()) 383860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 383960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 384060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 384160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // FIXME: Try to deal with other __declspec attributes! 384260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 384360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 384460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (NonInheritable) 38451b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessNonInheritableDeclAttr(S, scope, D, Attr); 384660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 384760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable) 38481b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessInheritableDeclAttr(S, scope, D, Attr); 384960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 385060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 3851803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 3852803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 3853f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christophervoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, 385460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList *AttrList, 385560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 385611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 38571b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessDeclAttribute(*this, S, D, *l, NonInheritable, Inheritable); 385811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 385911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 386011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 386111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 386211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 386360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 386411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 3865dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 386611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 3867803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 3868803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 3869803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 38705f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen// Annotation attributes are the only attributes allowed after an access 38715f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen// specifier. 38725f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggenbool Sema::ProcessAccessDeclAttributeList(AccessSpecDecl *ASDecl, 38735f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen const AttributeList *AttrList) { 38745f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen for (const AttributeList* l = AttrList; l; l = l->getNext()) { 38755f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen if (l->getKind() == AttributeList::AT_annotate) { 38765f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen handleAnnotateAttr(*this, ASDecl, *l); 38775f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen } else { 38785f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen Diag(l->getLoc(), diag::err_only_annotate_after_access_spec); 38795f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen return true; 38805f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen } 38815f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen } 38825f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen 38835f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen return false; 38845f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen} 38855f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen 3886e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// checkUnusedDeclAttributes - Check a list of attributes to see if it 3887e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// contains any decl attributes that we should warn about. 3888e82247a71a1a76e78f3b979b64d5f6412ab40266John McCallstatic void checkUnusedDeclAttributes(Sema &S, const AttributeList *A) { 3889e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall for ( ; A; A = A->getNext()) { 3890e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall // Only warn if the attribute is an unignored, non-type attribute. 3891e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->isUsedAsTypeAttr()) continue; 3892e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->getKind() == AttributeList::IgnoredAttribute) continue; 3893e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3894e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->getKind() == AttributeList::UnknownAttribute) { 3895e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall S.Diag(A->getLoc(), diag::warn_unknown_attribute_ignored) 3896e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall << A->getName() << A->getRange(); 3897e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } else { 3898e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall S.Diag(A->getLoc(), diag::warn_attribute_not_on_decl) 3899e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall << A->getName() << A->getRange(); 3900e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } 3901e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } 3902e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall} 3903e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3904e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// checkUnusedDeclAttributes - Given a declarator which is not being 3905e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// used to build a declaration, complain about any decl attributes 3906e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// which might be lying around on it. 3907e82247a71a1a76e78f3b979b64d5f6412ab40266John McCallvoid Sema::checkUnusedDeclAttributes(Declarator &D) { 3908e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getDeclSpec().getAttributes().getList()); 3909e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getAttributes()); 3910e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) 3911e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getTypeObject(i).getAttrs()); 3912e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall} 3913e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 3914e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 3915e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 3916900693b715b3832a42ae87157332baece94ccdd8Eli FriedmanNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II, 3917900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SourceLocation Loc) { 39187b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 3919e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 3920e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 3921900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FunctionDecl *NewFD; 3922900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Missing call to CheckFunctionDeclaration(). 3923900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Mangling? 3924900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Is the qualifier info correct? 3925900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Is the DeclContext correct? 3926900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewFD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 3927900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Loc, Loc, DeclarationName(II), 3928900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FD->getType(), FD->getTypeSourceInfo(), 3929900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SC_None, SC_None, 3930900693b715b3832a42ae87157332baece94ccdd8Eli Friedman false/*isInlineSpecified*/, 3931900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FD->hasPrototype(), 3932900693b715b3832a42ae87157332baece94ccdd8Eli Friedman false/*isConstexprSpecified*/); 3933900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewD = NewFD; 3934900693b715b3832a42ae87157332baece94ccdd8Eli Friedman 3935900693b715b3832a42ae87157332baece94ccdd8Eli Friedman if (FD->getQualifier()) 3936c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewFD->setQualifierInfo(FD->getQualifierLoc()); 3937900693b715b3832a42ae87157332baece94ccdd8Eli Friedman 3938900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // Fake up parameter variables; they are declared as if this were 3939900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // a typedef. 3940900693b715b3832a42ae87157332baece94ccdd8Eli Friedman QualType FDTy = FD->getType(); 3941900693b715b3832a42ae87157332baece94ccdd8Eli Friedman if (const FunctionProtoType *FT = FDTy->getAs<FunctionProtoType>()) { 3942900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SmallVector<ParmVarDecl*, 16> Params; 3943900693b715b3832a42ae87157332baece94ccdd8Eli Friedman for (FunctionProtoType::arg_type_iterator AI = FT->arg_type_begin(), 3944900693b715b3832a42ae87157332baece94ccdd8Eli Friedman AE = FT->arg_type_end(); AI != AE; ++AI) { 3945900693b715b3832a42ae87157332baece94ccdd8Eli Friedman ParmVarDecl *Param = BuildParmVarDeclForTypedef(NewFD, Loc, *AI); 3946900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Param->setScopeInfo(0, Params.size()); 3947900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Params.push_back(Param); 3948900693b715b3832a42ae87157332baece94ccdd8Eli Friedman } 39494278c654b645402554eb52a48e9c7097c9f1233aDavid Blaikie NewFD->setParams(Params); 3950b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 3951e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 3952e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 3953ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara VD->getInnerLocStart(), VD->getLocation(), II, 3954a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 395516573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 395616573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 3957b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 3958b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 3959c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewVD->setQualifierInfo(VD->getQualifierLoc()); 3960b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 3961e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3962e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 3963e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 3964e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 3965e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 3966e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 39677b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 3968c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 3969c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 3970c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 3971c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 3972900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias(), W.getLocation()); 3973cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 3974cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 3975cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 3976c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 3977c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 3978c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 3979c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 3980c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 3981c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 3982c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 3983c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 3984cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 3985e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3986e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 3987e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 39880744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 39890744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 39900744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 399160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournevoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, 399260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 3993d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // It's valid to "forward-declare" #pragma weak, in which case we 3994d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // have to do this. 399531e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (Inheritable) { 399631e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor LoadExternalWeakUndeclaredIdentifiers(); 399731e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (!WeakUndeclaredIdentifiers.empty()) { 399831e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 399931e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (IdentifierInfo *Id = ND->getIdentifier()) { 400031e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I 400131e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor = WeakUndeclaredIdentifiers.find(Id); 400231e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { 400331e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor WeakInfo W = I->second; 400431e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor DeclApplyPragmaWeak(S, ND, W); 400531e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor WeakUndeclaredIdentifiers[Id] = W; 400631e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor } 4007d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall } 4008e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 4009e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 4010e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 4011e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 40120744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 40137f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) 401460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 4015bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 40160744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 40170744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 40180744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 40190744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 40200744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 40210744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 402260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 4023bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 40240744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 40250744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 402660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 40270744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 402854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 4029f85e193739c953358c865005855253af4f68a497John McCall/// Is the given declaration allowed to use a forbidden type? 4030f85e193739c953358c865005855253af4f68a497John McCallstatic bool isForbiddenTypeAllowed(Sema &S, Decl *decl) { 4031f85e193739c953358c865005855253af4f68a497John McCall // Private ivars are always okay. Unfortunately, people don't 4032f85e193739c953358c865005855253af4f68a497John McCall // always properly make their ivars private, even in system headers. 4033f85e193739c953358c865005855253af4f68a497John McCall // Plus we need to make fields okay, too. 4034a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian // Function declarations in sys headers will be marked unavailable. 4035a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian if (!isa<FieldDecl>(decl) && !isa<ObjCPropertyDecl>(decl) && 4036a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian !isa<FunctionDecl>(decl)) 4037f85e193739c953358c865005855253af4f68a497John McCall return false; 4038f85e193739c953358c865005855253af4f68a497John McCall 4039f85e193739c953358c865005855253af4f68a497John McCall // Require it to be declared in a system header. 4040f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getSourceManager().isInSystemHeader(decl->getLocation()); 4041f85e193739c953358c865005855253af4f68a497John McCall} 4042f85e193739c953358c865005855253af4f68a497John McCall 4043f85e193739c953358c865005855253af4f68a497John McCall/// Handle a delayed forbidden-type diagnostic. 4044f85e193739c953358c865005855253af4f68a497John McCallstatic void handleDelayedForbiddenType(Sema &S, DelayedDiagnostic &diag, 4045f85e193739c953358c865005855253af4f68a497John McCall Decl *decl) { 4046f85e193739c953358c865005855253af4f68a497John McCall if (decl && isForbiddenTypeAllowed(S, decl)) { 4047f85e193739c953358c865005855253af4f68a497John McCall decl->addAttr(new (S.Context) UnavailableAttr(diag.Loc, S.Context, 4048f85e193739c953358c865005855253af4f68a497John McCall "this system declaration uses an unsupported type")); 4049f85e193739c953358c865005855253af4f68a497John McCall return; 4050f85e193739c953358c865005855253af4f68a497John McCall } 40514e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().ObjCAutoRefCount) 4052175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(decl)) { 4053175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian // FIXME. we may want to supress diagnostics for all 4054175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian // kind of forbidden type messages on unavailable functions. 4055175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian if (FD->hasAttr<UnavailableAttr>() && 4056175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag.getForbiddenTypeDiagnostic() == 4057175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag::err_arc_array_param_no_ownership) { 4058175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag.Triggered = true; 4059175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian return; 4060175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian } 4061175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian } 4062f85e193739c953358c865005855253af4f68a497John McCall 4063f85e193739c953358c865005855253af4f68a497John McCall S.Diag(diag.Loc, diag.getForbiddenTypeDiagnostic()) 4064f85e193739c953358c865005855253af4f68a497John McCall << diag.getForbiddenTypeOperand() << diag.getForbiddenTypeArgument(); 4065f85e193739c953358c865005855253af4f68a497John McCall diag.Triggered = true; 4066f85e193739c953358c865005855253af4f68a497John McCall} 4067f85e193739c953358c865005855253af4f68a497John McCall 4068eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// This duplicates a vector push_back but hides the need to know the 4069eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// size of the type. 4070eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::add(const DelayedDiagnostic &diag) { 4071eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize <= StackCapacity); 4072eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 4073eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Grow the stack if necessary. 4074eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackSize == StackCapacity) { 4075eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall unsigned newCapacity = 2 * StackCapacity + 2; 4076eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall char *newBuffer = new char[newCapacity * sizeof(DelayedDiagnostic)]; 4077eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall const char *oldBuffer = (const char*) Stack; 4078eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 4079eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackCapacity) 4080eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall memcpy(newBuffer, oldBuffer, StackCapacity * sizeof(DelayedDiagnostic)); 4081eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 4082eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall delete[] oldBuffer; 4083eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Stack = reinterpret_cast<sema::DelayedDiagnostic*>(newBuffer); 4084eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall StackCapacity = newCapacity; 4085eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall } 4086eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 4087eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize < StackCapacity); 4088eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall new (&Stack[StackSize++]) DelayedDiagnostic(diag); 408954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 409054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 4091eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::popParsingDecl(Sema &S, ParsingDeclState state, 4092eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Decl *decl) { 4093eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics &DD = S.DelayedDiagnostics; 409454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 4095eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Check the invariants. 4096eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.StackSize >= state.SavedStackSize); 4097eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(state.SavedStackSize >= DD.ActiveStackBase); 4098eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.ParsingDepth > 0); 409954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 4100eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Drop the parsing depth. 4101eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.ParsingDepth--; 410254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 4103eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // If there are no active diagnostics, we're done. 4104eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DD.StackSize == DD.ActiveStackBase) 4105eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall return; 410658e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 41072f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 41082f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 4109e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall if (decl) { 4110eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // We emit all the active diagnostics, not just those starting 4111eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // from the saved state. The idea is this: we get one push for a 41122f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 41132f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 41142f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 41152f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 41162f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 4117eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = DD.ActiveStackBase, e = DD.StackSize; i != e; ++i) { 4118eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostic &diag = DD.Stack[i]; 4119eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (diag.Triggered) 41202f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 41212f514480c448708ec382a684cf5e035d3a827ec8John McCall 4122eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall switch (diag.Kind) { 41232f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 4124e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // Don't bother giving deprecation diagnostics if the decl is invalid. 4125e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall if (!decl->isInvalidDecl()) 4126e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall S.HandleDelayedDeprecationCheck(diag, decl); 41272f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 41282f514480c448708ec382a684cf5e035d3a827ec8John McCall 41292f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 4130eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedAccessCheck(diag, decl); 41312f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 4132f85e193739c953358c865005855253af4f68a497John McCall 4133f85e193739c953358c865005855253af4f68a497John McCall case DelayedDiagnostic::ForbiddenType: 4134f85e193739c953358c865005855253af4f68a497John McCall handleDelayedForbiddenType(S, diag, decl); 4135f85e193739c953358c865005855253af4f68a497John McCall break; 413654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 413754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 413854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 413954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 414058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 4141eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = state.SavedStackSize, e = DD.StackSize; i != e; ++i) 414229233802236f7fe1db20e00eca4f5cc8f3f64adeDouglas Gregor DD.Stack[i].Destroy(); 414358e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 4144eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.StackSize = state.SavedStackSize; 41452f514480c448708ec382a684cf5e035d3a827ec8John McCall} 41462f514480c448708ec382a684cf5e035d3a827ec8John McCall 41472f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 41482f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 41490a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (D->isDeprecated()) 41502f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 4151c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis // A category implicitly has the availability of the interface. 4152c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis if (const ObjCCategoryDecl *CatD = dyn_cast<ObjCCategoryDecl>(D)) 4153c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis return CatD->getClassInterface()->isDeprecated(); 41542f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 41552f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 41562f514480c448708ec382a684cf5e035d3a827ec8John McCall} 41572f514480c448708ec382a684cf5e035d3a827ec8John McCall 41589c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 41592f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 41602f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 41612f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 41622f514480c448708ec382a684cf5e035d3a827ec8John McCall 41632f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 4164ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!DD.getDeprecationMessage().empty()) 4165c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_message) 4166ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName() 4167ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationMessage(); 4168b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian else if (DD.getUnknownObjCClass()) { 4169b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_fwdclass_message) 4170b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian << DD.getDeprecationDecl()->getDeclName(); 4171b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian Diag(DD.getUnknownObjCClass()->getLocation(), diag::note_forward_class); 4172b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian } 4173c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 4174c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated) 4175ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName(); 417654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 417754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 41785f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid Sema::EmitDeprecationWarning(NamedDecl *D, StringRef Message, 41798e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian SourceLocation Loc, 418089ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian const ObjCInterfaceDecl *UnknownObjCClass) { 418154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 4182eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DelayedDiagnostics.shouldDelayDiagnostics()) { 4183b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, 4184b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian UnknownObjCClass, 4185b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian Message)); 418654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 418754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 418854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 418954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 41903a387441ae339363ee5b254658f295e97bd9e913Argyrios Kyrtzidis if (isDeclDeprecated(cast<Decl>(getCurLexicalContext()))) 419154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 4192ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!Message.empty()) 4193c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() 4194c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian << Message; 41958e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else { 4196743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne if (!UnknownObjCClass) 41978e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 419889ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian else { 41998e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); 420089ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian Diag(UnknownObjCClass->getLocation(), diag::note_forward_class); 420189ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian } 42028e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian } 420354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 4204