SemaDeclAttr.cpp revision fac8e43390fad67a5d02c9876e860496fee01868
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" 17bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins#include "clang/AST/CXXInheritance.h" 18384aff8b94bb0d1ad6c5667b90621e5699815bb2John McCall#include "clang/AST/DeclCXX.h" 19b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski#include "clang/AST/DeclTemplate.h" 20acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/DeclObjC.h" 21acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/Expr.h" 22f85e193739c953358c865005855253af4f68a497John McCall#include "clang/Basic/SourceManager.h" 23fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 2419510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 259c3087b0b0bea2fd782205c1274ebfc4290265e0John McCall#include "clang/Sema/DelayedDiagnostic.h" 26fe98da0fa352462c02db037360788748f95466f7John McCall#include "clang/Sema/Lookup.h" 27797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 299c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallusing namespace sema; 306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 31883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// These constants match the enumerated choices of 32883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// warn_attribute_wrong_decl_type and err_attribute_wrong_decl_type. 33b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskienum AttributeDeclKind { 34883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunction, 35883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedUnion, 36883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariableOrFunction, 37883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionOrMethod, 38883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameter, 39883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrBlock, 40883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrParameter, 41883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClass, 42883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariable, 43883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedMethod, 44db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski ExpectedVariableFunctionOrLabel, 45f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor ExpectedFieldOrGlobalVar, 465e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg ExpectedStruct, 475e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg ExpectedTLSVar 48883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall}; 49883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall 50e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 51e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 52e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 53e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 5487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic const FunctionType *getFunctionType(const Decl *D, 55a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 5787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const ValueDecl *decl = dyn_cast<ValueDecl>(D)) 586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 5987c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const FieldDecl *decl = dyn_cast<FieldDecl>(D)) 606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 6187c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const TypedefNameDecl* decl = dyn_cast<TypedefNameDecl>(D)) 626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 65bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 676217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 68755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 696217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 70d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 71183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 743568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 753568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 763568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 77d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 78a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 7987c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunction(const Decl *D) { 8087c44604325578b8de07d768391c1c9432404f5aChandler Carruth return getFunctionType(D, false) != NULL; 81a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 82a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 83a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 84d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 85d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 8687c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethod(const Decl *D) { 874ae89bc757f16baeb74ebeea81c43dc5201cb4f2Nick Lewycky return isFunction(D) || isa<ObjCMethodDecl>(D); 88d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 893568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 90620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 91620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 92620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 9387c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodOrBlock(const Decl *D) { 9487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethod(D)) 95620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 96620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 9787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 98620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 99620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 100620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 10187c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<BlockDecl>(D); 102620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 103620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 104711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Return true if the given decl has a declarator that should have 105711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// been processed by Sema::GetTypeForDeclarator. 10687c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasDeclarator(const Decl *D) { 107f85e193739c953358c865005855253af4f68a497John McCall // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. 10887c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<DeclaratorDecl>(D) || isa<BlockDecl>(D) || isa<TypedefNameDecl>(D) || 10987c44604325578b8de07d768391c1c9432404f5aChandler Carruth isa<ObjCPropertyDecl>(D); 110711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 111711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 112d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 113d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 114620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 11587c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasFunctionProto(const Decl *D) { 11687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 11772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 118620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 11987c44604325578b8de07d768391c1c9432404f5aChandler Carruth assert(isa<ObjCMethodDecl>(D) || isa<BlockDecl>(D)); 120d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 121d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 1223568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1233568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 124d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 125d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 126d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 12787c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic unsigned getFunctionOrMethodNumArgs(const Decl *D) { 12887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 12972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 13087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 131d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 13287c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_size(); 1333568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1343568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 13587c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodArgType(const Decl *D, unsigned Idx) { 13687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 13772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 13887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 139d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 140bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 14187c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_begin()[Idx]->getType(); 1423568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1433568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 14487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodResultType(const Decl *D) { 14587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 1465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 14787c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->getResultType(); 1485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 15087c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodVariadic(const Decl *D) { 15187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) { 15272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1533568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 15487c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 155db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 156d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 15787c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->isVariadic(); 1583568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1593568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1603568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 16187c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isInstanceMethod(const Decl *D) { 16287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(D)) 16307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return MethodDecl->isInstance(); 16407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return false; 16507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth} 16607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 168183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 169b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 171bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 172506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 173506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 175bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 176506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 177bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 183085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1846217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 185085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 186085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 187085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1886217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 189085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 190085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 191bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 192085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 193465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 194085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 195085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 196085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 197085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 198085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 199b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the attribute has exactly as many args as Num. May 200b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// output an error. 2011731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruthstatic bool checkAttributeNumArgs(Sema &S, const AttributeList &Attr, 2021731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth unsigned int Num) { 2031731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (Attr.getNumArgs() != Num) { 2041731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << Num; 2051731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return false; 2061731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth } 2071731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 2081731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return true; 2091731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth} 2101731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 211db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 212b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the attribute has at least as many args as Num. May 213b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// output an error. 214b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskistatic bool checkAttributeAtLeastNumArgs(Sema &S, const AttributeList &Attr, 215b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski unsigned int Num) { 216b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (Attr.getNumArgs() < Num) { 217db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_too_few_arguments) << Num; 218db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return false; 219db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 220db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 221db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return true; 222db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 223db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 224db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski/// 225fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \brief Check if passed in Decl is a field or potentially shared global var 226fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// \return true if the Decl is a field or potentially shared global variable 227fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski/// 22839997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramerstatic bool mayBeSharedVariable(const Decl *D) { 229fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (isa<FieldDecl>(D)) 230fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return true; 23139997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (const VarDecl *vd = dyn_cast<VarDecl>(D)) 232fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return (vd->hasGlobalStorage() && !(vd->isThreadSpecified())); 233fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 234fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return false; 235fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 236fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 237b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Check if the passed-in expression is of type int or bool. 238b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowskistatic bool isIntOrBool(Expr *Exp) { 239b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski QualType QT = Exp->getType(); 240b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return QT->isBooleanType() || QT->isIntegerType(); 241b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 242b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 243aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins 244aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins// Check to see if the type is a smart pointer of some kind. We assume 245aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins// it's a smart pointer if it defines both operator-> and operator*. 24660f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchinsstatic bool threadSafetyCheckIsSmartPointer(Sema &S, const RecordType* RT) { 24760f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins DeclContextLookupConstResult Res1 = RT->getDecl()->lookup( 24860f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins S.Context.DeclarationNames.getCXXOperatorName(OO_Star)); 24960f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins if (Res1.first == Res1.second) 25060f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins return false; 25160f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins 25260f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins DeclContextLookupConstResult Res2 = RT->getDecl()->lookup( 25360f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins S.Context.DeclarationNames.getCXXOperatorName(OO_Arrow)); 25460f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins if (Res2.first == Res2.second) 25560f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins return false; 25660f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins 25760f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins return true; 258aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins} 259aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins 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 263ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchinsstatic bool threadSafetyCheckIsPointer(Sema &S, const Decl *D, 264ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins const AttributeList &Attr) { 26539997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (const ValueDecl *vd = dyn_cast<ValueDecl>(D)) { 266fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski QualType QT = vd->getType(); 26739997fc2b8d300a85ead0a7d687964c6e63a8110Benjamin Kramer if (QT->isAnyPointerType()) 268fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return true; 269aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins 27060f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins if (const RecordType *RT = QT->getAs<RecordType>()) { 27160f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins // If it's an incomplete type, it could be a smart pointer; skip it. 27260f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins // (We don't want to force template instantiation if we can avoid it, 27360f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins // since that would alter the order in which templates are instantiated.) 27460f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins if (RT->isIncompleteType()) 27560f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins return true; 27660f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins 27760f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins if (threadSafetyCheckIsSmartPointer(S, RT)) 27860f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins return true; 27960f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins } 280aed9ea398a3fd8d488120728e2df4ac81c3b0c4bDeLesley Hutchins 281ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_decl_not_pointer) 282fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName()->getName() << QT; 283fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } else { 284fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_can_be_applied_only_to_value_decl) 285fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski << Attr.getName(); 286fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 287fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return false; 288fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 289fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 290b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Checks that the passed in QualType either is of RecordType or points 291b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// to RecordType. Returns the relevant RecordType, null if it does not exit. 2927d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramerstatic const RecordType *getRecordType(QualType QT) { 2937d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer if (const RecordType *RT = QT->getAs<RecordType>()) 294b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return RT; 2957d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer 2967d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer // Now check if we point to record type. 2977d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer if (const PointerType *PT = QT->getAs<PointerType>()) 2987d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer return PT->getPointeeType()->getAs<RecordType>(); 2997d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer 3007d23b4a6e855f156bbd30cf2702ebbeb5bc57028Benjamin Kramer return 0; 301b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 302b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 303bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins 304fad5de9d674521017460f8445e2f81e2a1086290Jordy Rosestatic bool checkBaseClassIsLockableCallback(const CXXBaseSpecifier *Specifier, 305fad5de9d674521017460f8445e2f81e2a1086290Jordy Rose CXXBasePath &Path, void *Unused) { 306bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins const RecordType *RT = Specifier->getType()->getAs<RecordType>(); 307bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins if (RT->getDecl()->getAttr<LockableAttr>()) 308bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins return true; 309bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins return false; 310bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins} 311bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins 312bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins 3133ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \brief Thread Safety Analysis: Checks that the passed in RecordType 314ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins/// resolves to a lockable object. 31583cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchinsstatic void checkForLockableRecord(Sema &S, Decl *D, const AttributeList &Attr, 31683cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins QualType Ty) { 31783cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins const RecordType *RT = getRecordType(Ty); 318f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han 31983cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins // Warn if could not get record type for this argument. 320d77ba899b3ed39aa4bdba22aabc4bcd5ca6effdfBenjamin Kramer if (!RT) { 321ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_argument_not_class) 32283cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins << Attr.getName() << Ty.getAsString(); 32383cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins return; 3243ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski } 32560f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins 326f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han // Don't check for lockable if the class hasn't been defined yet. 327634b2930f5a8fc4b153437657ce786ca3fba5b1eDeLesley Hutchins if (RT->isIncompleteType()) 32883cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins return; 32960f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins 33060f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins // Allow smart pointers to be used as lockable objects. 33160f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins // FIXME -- Check the type that the smart pointer points to. 33260f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins if (threadSafetyCheckIsSmartPointer(S, RT)) 33360f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins return; 33460f2024b7df091fb0d8b7e37334bc83ac66a5c39DeLesley Hutchins 335bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins // Check if the type is lockable. 336bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins RecordDecl *RD = RT->getDecl(); 337bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins if (RD->getAttr<LockableAttr>()) 33883cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins return; 339bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins 340bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins // Else check if any base classes are lockable. 341bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins if (CXXRecordDecl *CRD = dyn_cast<CXXRecordDecl>(RD)) { 342bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins CXXBasePaths BPaths(false, false); 343bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins if (CRD->lookupInBases(checkBaseClassIsLockableCallback, 0, BPaths)) 344bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins return; 3453ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski } 346bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins 347bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_argument_not_lockable) 348bbba25fa8e388e82e04f66784c2fc9f89b901abeDeLesley Hutchins << Attr.getName() << Ty.getAsString(); 3493ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski} 3503ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 351b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski/// \brief Thread Safety Analysis: Checks that all attribute arguments, starting 352ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins/// from Sidx, resolve to a lockable object. 3533ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \param Sidx The attribute argument index to start checking with. 3543ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// \param ParamIdxOk Whether an argument can be indexing into a function 3553ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski/// parameter list. 356ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchinsstatic void checkAttrArgsAreLockableObjs(Sema &S, Decl *D, 3573ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski const AttributeList &Attr, 3583ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVectorImpl<Expr*> &Args, 359b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski int Sidx = 0, 360b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski bool ParamIdxOk = false) { 3613ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski for(unsigned Idx = Sidx; Idx < Attr.getNumArgs(); ++Idx) { 362b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski Expr *ArgExp = Attr.getArg(Idx); 3633ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 364ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski if (ArgExp->isTypeDependent()) { 365ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // FIXME -- need to check this again on template instantiation 366ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski Args.push_back(ArgExp); 367ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski continue; 368ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski } 369b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 37079747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (StringLiteral *StrLit = dyn_cast<StringLiteral>(ArgExp)) { 37179747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins // Ignore empty strings without warnings 37279747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (StrLit->getLength() == 0) 37379747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins continue; 37479747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins 375ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // We allow constant strings to be used as a placeholder for expressions 376ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // that are not valid C++ syntax, but warn that they are ignored. 377ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_ignored) << 378ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins Attr.getName(); 379ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins continue; 380ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins } 381ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins 3823ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski QualType ArgTy = ArgExp->getType(); 383b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 38479747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins // A pointer to member expression of the form &MyClass::mu is treated 38579747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins // specially -- we need to look at the type of the member. 38679747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (UnaryOperator *UOp = dyn_cast<UnaryOperator>(ArgExp)) 38779747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (UOp->getOpcode() == UO_AddrOf) 38879747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(UOp->getSubExpr())) 38979747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins if (DRE->getDecl()->isCXXInstanceMember()) 39079747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins ArgTy = DRE->getDecl()->getType(); 39179747e00e9f6b13b56e91462982d2456d0d9128fDeLesley Hutchins 3923ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // First see if we can just cast to record type, or point to record type. 3933ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski const RecordType *RT = getRecordType(ArgTy); 394b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 3953ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // Now check if we index into a record type function param. 3963ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if(!RT && ParamIdxOk) { 3973ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 398b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski IntegerLiteral *IL = dyn_cast<IntegerLiteral>(ArgExp); 399b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if(FD && IL) { 400b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski unsigned int NumParams = FD->getNumParams(); 401b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski llvm::APInt ArgValue = IL->getValue(); 4023ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski uint64_t ParamIdxFromOne = ArgValue.getZExtValue(); 4033ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski uint64_t ParamIdxFromZero = ParamIdxFromOne - 1; 4043ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if(!ArgValue.isStrictlyPositive() || ParamIdxFromOne > NumParams) { 405b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_range) 406b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski << Attr.getName() << Idx + 1 << NumParams; 407ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins continue; 408b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 4093ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski ArgTy = FD->getParamDecl(ParamIdxFromZero)->getType(); 410b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 411b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 412b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 41383cad4544f8a89fb6a611f330d71d027c238375eDeLesley Hutchins checkForLockableRecord(S, D, Attr, ArgTy); 414b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 4153ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Args.push_back(ArgExp); 416b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 417b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski} 418b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 419e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 420e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 421e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 422e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 4233068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 4243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 4253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 4263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4270aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchinsenum ThreadAttributeDeclKind { 4280aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins ThreadExpectedFieldOrGlobalVar, 4290aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins ThreadExpectedFunctionOrMethod, 4300aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins ThreadExpectedClassOrStruct 4310aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins}; 4320aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins 433f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic bool checkGuardedVarAttrCommon(Sema &S, Decl *D, 434dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 435fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 436fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 437fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 438dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 439fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 440fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 441fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!mayBeSharedVariable(D)) { 4420aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 4430aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedFieldOrGlobalVar; 444dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 445fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 446fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 447dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return true; 448dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 449dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 450dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Hanstatic void handleGuardedVarAttr(Sema &S, Decl *D, const AttributeList &Attr) { 451dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkGuardedVarAttrCommon(S, D, Attr)) 452fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 453f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han 454dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) GuardedVarAttr(Attr.getRange(), S.Context)); 455dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 456fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 457f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handlePtGuardedVarAttr(Sema &S, Decl *D, 458dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 459dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkGuardedVarAttrCommon(S, D, Attr)) 460dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 461dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 462dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!threadSafetyCheckIsPointer(S, D, Attr)) 463dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 464dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 465dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) PtGuardedVarAttr(Attr.getRange(), S.Context)); 466fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 467fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 468f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic bool checkGuardedByAttrCommon(Sema &S, Decl *D, 469f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han const AttributeList &Attr, 470dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han Expr* &Arg) { 471db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 472db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 473b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 1)) 474dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 475db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 476db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 477db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski if (!mayBeSharedVariable(D)) { 4780aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 4790aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedFieldOrGlobalVar; 480dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 481db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 482db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 483ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins SmallVector<Expr*, 1> Args; 484ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // check that all arguments are lockable objects 485ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args); 486ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins unsigned Size = Args.size(); 487ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins if (Size != 1) 488dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 489f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han 490dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han Arg = Args[0]; 491dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 492dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return true; 493dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 494dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 495dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Hanstatic void handleGuardedByAttr(Sema &S, Decl *D, const AttributeList &Attr) { 496dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han Expr *Arg = 0; 497dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkGuardedByAttrCommon(S, D, Attr, Arg)) 498ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins return; 499b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 500dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) GuardedByAttr(Attr.getRange(), S.Context, Arg)); 501db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 502db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 503f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handlePtGuardedByAttr(Sema &S, Decl *D, 504dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 505dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han Expr *Arg = 0; 506dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkGuardedByAttrCommon(S, D, Attr, Arg)) 507dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 508dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 509dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!threadSafetyCheckIsPointer(S, D, Attr)) 510dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 511dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 512dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) PtGuardedByAttr(Attr.getRange(), 513dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han S.Context, Arg)); 514dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 515db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 516f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic bool checkLockableAttrCommon(Sema &S, Decl *D, 517dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 518fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 519fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 520fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 521dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 522fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 5231748b1256646cf0752f172c53ad7482f7beed185Caitlin Sadowski // FIXME: Lockable structs for C code. 524fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!isa<CXXRecordDecl>(D)) { 5250aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 5260aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedClassOrStruct; 527dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 528fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 529fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 530dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return true; 531dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 532dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 533dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Hanstatic void handleLockableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 534dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkLockableAttrCommon(S, D, Attr)) 535dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 536dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 537dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) LockableAttr(Attr.getRange(), S.Context)); 538dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 539dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 540f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handleScopedLockableAttr(Sema &S, Decl *D, 541dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 542dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkLockableAttrCommon(S, D, Attr)) 543dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 544dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 545dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) ScopedLockableAttr(Attr.getRange(), S.Context)); 546fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 547fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 548fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowskistatic void handleNoThreadSafetyAttr(Sema &S, Decl *D, 549fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski const AttributeList &Attr) { 550fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski assert(!Attr.isInvalid()); 551fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 552fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 0)) 553fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 554fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 555b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 5560aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 5570aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedFunctionOrMethod; 558fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski return; 559fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski } 560fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 561768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoThreadSafetyAnalysisAttr(Attr.getRange(), 562fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski S.Context)); 563fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski} 564fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 56571efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryanystatic void handleNoAddressSafetyAttr(Sema &S, Decl *D, 566ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins const AttributeList &Attr) { 56771efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany assert(!Attr.isInvalid()); 56871efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 56971efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany if (!checkAttributeNumArgs(S, Attr, 0)) 57071efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany return; 57171efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 57271efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 57371efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 57471efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany << Attr.getName() << ExpectedFunctionOrMethod; 57571efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany return; 57671efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany } 57771efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 57871efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany D->addAttr(::new (S.Context) NoAddressSafetyAnalysisAttr(Attr.getRange(), 579f50b6fe092091a700cee7a708d509ae7c49709f6Nick Lewycky S.Context)); 58071efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany} 58171efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany 582f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic bool checkAcquireOrderAttrCommon(Sema &S, Decl *D, 583f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han const AttributeList &Attr, 584dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 1> &Args) { 585db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 586db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 587b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 588dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 589db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 590db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // D must be either a member field or global (potentially shared) variable. 591b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski ValueDecl *VD = dyn_cast<ValueDecl>(D); 592b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!VD || !mayBeSharedVariable(D)) { 5930aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 5940aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedFieldOrGlobalVar; 595dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 596db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 597db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 598ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // Check that this attribute only applies to lockable types. 599b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski QualType QT = VD->getType(); 600b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!QT->isDependentType()) { 601b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const RecordType *RT = getRecordType(QT); 602b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!RT || !RT->getDecl()->getAttr<LockableAttr>()) { 603ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_decl_not_lockable) 604dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han << Attr.getName(); 605dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 606b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 607b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 608b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 609ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins // Check that all arguments are lockable objects. 610ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args); 611dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (Args.size() == 0) 612dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 613f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han 614dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return true; 615dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 616dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 617f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handleAcquiredAfterAttr(Sema &S, Decl *D, 618dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 619dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 1> Args; 620dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkAcquireOrderAttrCommon(S, D, Attr, Args)) 621ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins return; 622dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 623ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins Expr **StartArg = &Args[0]; 624dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) AcquiredAfterAttr(Attr.getRange(), S.Context, 6254ae89bc757f16baeb74ebeea81c43dc5201cb4f2Nick Lewycky StartArg, Args.size())); 626dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 6273ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 628f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handleAcquiredBeforeAttr(Sema &S, Decl *D, 629dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 630dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 1> Args; 631dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkAcquireOrderAttrCommon(S, D, Attr, Args)) 632dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 633dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 634dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han Expr **StartArg = &Args[0]; 635dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) AcquiredBeforeAttr(Attr.getRange(), S.Context, 6364ae89bc757f16baeb74ebeea81c43dc5201cb4f2Nick Lewycky StartArg, Args.size())); 637db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 638db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 639f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic bool checkLockFunAttrCommon(Sema &S, Decl *D, 640f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han const AttributeList &Attr, 641dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 1> &Args) { 642db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 643db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 644db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // zero or more arguments ok 645db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 646b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that the attribute is applied to a function 647b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 6480aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 6490aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedFunctionOrMethod; 650dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 651db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 652db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 653b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 654ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true); 655dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 656dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return true; 657dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 658dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 659f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handleSharedLockFunctionAttr(Sema &S, Decl *D, 660dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 661dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 1> Args; 662dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkLockFunAttrCommon(S, D, Attr, Args)) 663dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 664dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 6653ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 6663ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 667dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) SharedLockFunctionAttr(Attr.getRange(), 668f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han S.Context, 669dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han StartArg, Size)); 670dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 6713ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 672f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handleExclusiveLockFunctionAttr(Sema &S, Decl *D, 673dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 674dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 1> Args; 675dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkLockFunAttrCommon(S, D, Attr, Args)) 676dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 677dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 678dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han unsigned Size = Args.size(); 679dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han Expr **StartArg = Size == 0 ? 0 : &Args[0]; 680dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) ExclusiveLockFunctionAttr(Attr.getRange(), 681f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han S.Context, 682dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han StartArg, Size)); 683db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 684db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 685f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic bool checkTryLockFunAttrCommon(Sema &S, Decl *D, 686f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han const AttributeList &Attr, 687dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 2> &Args) { 688db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 689db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 690b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 691dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 692db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 693b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 6940aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 6950aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedFunctionOrMethod; 696dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 697db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 698db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 699b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isIntOrBool(Attr.getArg(0))) { 700b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski S.Diag(Attr.getLoc(), diag::err_attribute_first_argument_not_int_or_bool) 701dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han << Attr.getName(); 702dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 703b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski } 704b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 705b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 706ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args, 1); 707dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 708dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return true; 709dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 710dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 711f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handleSharedTrylockFunctionAttr(Sema &S, Decl *D, 712dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 713dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 2> Args; 714dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkTryLockFunAttrCommon(S, D, Attr, Args)) 715dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 716dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 7173ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 7183ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 719dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) SharedTrylockFunctionAttr(Attr.getRange(), 720f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han S.Context, 721f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han Attr.getArg(0), 722dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han StartArg, Size)); 723dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 7243ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 725f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handleExclusiveTrylockFunctionAttr(Sema &S, Decl *D, 726dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 727dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 2> Args; 728dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkTryLockFunAttrCommon(S, D, Attr, Args)) 729dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 730dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 731dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han unsigned Size = Args.size(); 732dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han Expr **StartArg = Size == 0 ? 0 : &Args[0]; 733dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) ExclusiveTrylockFunctionAttr(Attr.getRange(), 734f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han S.Context, 735f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han Attr.getArg(0), 736dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han StartArg, Size)); 737db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 738db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 739f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic bool checkLocksRequiredCommon(Sema &S, Decl *D, 740f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han const AttributeList &Attr, 741dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 1> &Args) { 742db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 743db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 744b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 745dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 746db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 747b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 7480aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 7490aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedFunctionOrMethod; 750dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 751db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 752db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 753b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 754ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args); 755dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (Args.size() == 0) 756dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return false; 757f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han 758dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return true; 759dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 760dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 761f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handleExclusiveLocksRequiredAttr(Sema &S, Decl *D, 762dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 763dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 1> Args; 764dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkLocksRequiredCommon(S, D, Attr, Args)) 765ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins return; 766dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 767ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins Expr **StartArg = &Args[0]; 768dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) ExclusiveLocksRequiredAttr(Attr.getRange(), 769f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han S.Context, 770f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han StartArg, 771dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han Args.size())); 772dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han} 7733ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 774f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Hanstatic void handleSharedLocksRequiredAttr(Sema &S, Decl *D, 775dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han const AttributeList &Attr) { 776dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han SmallVector<Expr*, 1> Args; 777dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han if (!checkLocksRequiredCommon(S, D, Attr, Args)) 778dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han return; 779dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han 780dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han Expr **StartArg = &Args[0]; 781dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han D->addAttr(::new (S.Context) SharedLocksRequiredAttr(Attr.getRange(), 782f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han S.Context, 783f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han StartArg, 784dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han Args.size())); 785db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 786db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 787db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleUnlockFunAttr(Sema &S, Decl *D, 788b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 789db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 790db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 791db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski // zero or more arguments ok 792db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 793b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 7940aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 7950aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedFunctionOrMethod; 796db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 797db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 798db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 799b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 8003ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 801ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args, 0, /*ParamIdxOk=*/true); 8023ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 8033ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr **StartArg = Size == 0 ? 0 : &Args[0]; 8043ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 805768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnlockFunctionAttr(Attr.getRange(), S.Context, 8063ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 807db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 808db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 809db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLockReturnedAttr(Sema &S, Decl *D, 810b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 811db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 812db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 813b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeNumArgs(S, Attr, 1)) 814db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 8153ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski Expr *Arg = Attr.getArg(0); 816db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 817b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 8180aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 8190aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedFunctionOrMethod; 820db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 821db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 822db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 8233ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski if (Arg->isTypeDependent()) 824b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski return; 825b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski 8263ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski // check that the argument is lockable object 827f26efd79d1bd139641d0bb40842f908c67f041c2DeLesley Hutchins SmallVector<Expr*, 1> Args; 828f26efd79d1bd139641d0bb40842f908c67f041c2DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args); 829f26efd79d1bd139641d0bb40842f908c67f041c2DeLesley Hutchins unsigned Size = Args.size(); 830f26efd79d1bd139641d0bb40842f908c67f041c2DeLesley Hutchins if (Size == 0) 831f26efd79d1bd139641d0bb40842f908c67f041c2DeLesley Hutchins return; 8323ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 833f26efd79d1bd139641d0bb40842f908c67f041c2DeLesley Hutchins D->addAttr(::new (S.Context) LockReturnedAttr(Attr.getRange(), S.Context, 834f26efd79d1bd139641d0bb40842f908c67f041c2DeLesley Hutchins Args[0])); 835db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 836db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 837db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowskistatic void handleLocksExcludedAttr(Sema &S, Decl *D, 838b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski const AttributeList &Attr) { 839db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski assert(!Attr.isInvalid()); 840db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 841b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 842db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 843db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 844b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski if (!isa<FunctionDecl>(D) && !isa<FunctionTemplateDecl>(D)) { 8450aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins S.Diag(Attr.getLoc(), diag::warn_thread_attribute_wrong_decl_type) 8460aa52aa11e04d957f1c93c7d911e4c3dd7d5d54fDeLesley Hutchins << Attr.getName() << ThreadExpectedFunctionOrMethod; 847db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski return; 848db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski } 849db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 850b51e0315d4ffd12670441ea2284ae1188485df14Caitlin Sadowski // check that all arguments are lockable objects 8513ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski SmallVector<Expr*, 1> Args; 852ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins checkAttrArgsAreLockableObjs(S, D, Attr, Args); 8533ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski unsigned Size = Args.size(); 854ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins if (Size == 0) 855ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins return; 856ae519c42a1e0a023be6c07ba1dc10f28e29d6bc3DeLesley Hutchins Expr **StartArg = &Args[0]; 8573ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski 858768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) LocksExcludedAttr(Attr.getRange(), S.Context, 8593ac1fbc303d22af2e11a14023ecee7bd7b7d0bfdCaitlin Sadowski StartArg, Size)); 860db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski} 861db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 862db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski 8631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleExtVectorTypeAttr(Sema &S, Scope *scope, Decl *D, 8641b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 86587c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *tDecl = dyn_cast<TypedefNameDecl>(D); 866545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 867803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 868545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 8696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 870bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 8716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 8729cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 8739cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 8749cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 8759cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 8769cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 877f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 878e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 879f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 880f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 881f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han 882e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ExprResult Size = S.ActOnIdExpression(scope, SS, TemplateKWLoc, id, 883e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara false, false); 8844ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 8854ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 886f1aae3bc4e43fca03324150d7089856b7cfdc023Michael Han 8874ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 8889cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 8899cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 8901731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 8919cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 8921731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 8937a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne sizeExpr = Attr.getArg(0); 8946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8959cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 8969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 8979cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 8989ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 8999cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 900ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 901a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 902bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9039cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 9049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 9056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 9066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 9081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePackedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 9096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 9101731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 9116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 912bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 91387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 914768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis TD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); 91587c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FieldDecl *FD = dyn_cast<FieldDecl>(D)) { 9166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 9176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 9186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 919803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 920fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 92108631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 9226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 923768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis FD->addAttr(::new (S.Context) PackedAttr(Attr.getRange(), S.Context)); 9246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 9253c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 9266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 9281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMsStructAttr(Sema &S, Decl *D, const AttributeList &Attr) { 92987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 930768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis TD->addAttr(::new (S.Context) MsStructAttr(Attr.getRange(), S.Context)); 931c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian else 932c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 933c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian} 934c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian 9351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBAction(Sema &S, Decl *D, const AttributeList &Attr) { 93696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 9371731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 93896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 939bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 94063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 94187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 94263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 943768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBActionAttr(Attr.getRange(), S.Context)); 94463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 94563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 94663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 9474ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); 94863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 94963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 9502f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenekstatic bool checkIBOutletCommon(Sema &S, Decl *D, const AttributeList &Attr) { 9512f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // The IBOutlet/IBOutletCollection attributes only apply to instance 9522f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // variables or properties of Objective-C classes. The outlet must also 9532f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek // have an object reference type. 9542f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (const ObjCIvarDecl *VD = dyn_cast<ObjCIvarDecl>(D)) { 9552f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 9560bfaf067c294bc4064c2f1aee0bc1c51e861ac65Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) 9572f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek << Attr.getName() << VD->getType() << 0; 9582f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 9592f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 9602f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 9612f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek else if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) { 9622f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 963f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor S.Diag(Attr.getLoc(), diag::warn_iboutlet_object_type) 9642f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek << Attr.getName() << PD->getType() << 1; 9652f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 9662f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 9672f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 9682f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek else { 9692f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 9702f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return false; 9712f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek } 972f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor 9732f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek return true; 9742f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek} 9752f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 9761b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutlet(Sema &S, Decl *D, const AttributeList &Attr) { 97763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 9781731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 97963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 9802f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 9812f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!checkIBOutletCommon(S, D, Attr)) 98263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 98363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 9842f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek D->addAttr(::new (S.Context) IBOutletAttr(Attr.getRange(), S.Context)); 98596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 98696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 9871b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutletCollection(Sema &S, Decl *D, 9881b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 989857e918a8a40deb128840308a318bf623d68295fTed Kremenek 990857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 991a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 992857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 993857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 994857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 995857e918a8a40deb128840308a318bf623d68295fTed Kremenek 9962f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek if (!checkIBOutletCommon(S, D, Attr)) 997857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 9982f041d0b12aa87f3345e5fb2e38fefba30c5bff3Ted Kremenek 999a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 1000a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 1001f4072ae44b70a7ac234c47c146157fee75437e38Fariborz Jahanian II = &S.Context.Idents.get("NSObject"); 10023a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 1003b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 100487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.getScopeForContext(D->getDeclContext()->getParent())); 1005a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 1006a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 1007a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 1008a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 1009b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 1010a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 1011a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 1012a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 1013a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 1014f4072ae44b70a7ac234c47c146157fee75437e38Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCObjectType()) { 1015a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 1016a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 1017a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 1018f1e7af36d6673185994b3d1751cf7e9a9a1491b8Argyrios Kyrtzidis D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getRange(),S.Context, 1019f1e7af36d6673185994b3d1751cf7e9a9a1491b8Argyrios Kyrtzidis QT, Attr.getParameterLoc())); 1020857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 1021857e918a8a40deb128840308a318bf623d68295fTed Kremenek 1022d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruthstatic void possibleTransparentUnionPointerType(QualType &T) { 102368fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (const RecordType *UT = T->getAsUnionType()) 102468fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { 102568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian RecordDecl *UD = UT->getDecl(); 102668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian for (RecordDecl::field_iterator it = UD->field_begin(), 102768fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian itend = UD->field_end(); it != itend; ++it) { 102868fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian QualType QT = it->getType(); 102968fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (QT->isAnyPointerType() || QT->isBlockPointerType()) { 103068fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian T = QT; 103168fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian return; 103268fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 103368fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 103468fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 103568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian} 103668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 1037587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopesstatic void handleAllocSizeAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1038174930db339bb7213353db9e7b5aa94ecf4c12eaNuno Lopes if (!isFunctionOrMethod(D)) { 1039174930db339bb7213353db9e7b5aa94ecf4c12eaNuno Lopes S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1040174930db339bb7213353db9e7b5aa94ecf4c12eaNuno Lopes << "alloc_size" << ExpectedFunctionOrMethod; 1041174930db339bb7213353db9e7b5aa94ecf4c12eaNuno Lopes return; 1042174930db339bb7213353db9e7b5aa94ecf4c12eaNuno Lopes } 1043174930db339bb7213353db9e7b5aa94ecf4c12eaNuno Lopes 1044587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes if (!checkAttributeAtLeastNumArgs(S, Attr, 1)) 1045587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes return; 1046587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 1047587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes // In C++ the implicit 'this' function parameter also counts, and they are 1048587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes // counted from one. 1049587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes bool HasImplicitThisParam = isInstanceMethod(D); 1050587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 1051587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 1052587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes SmallVector<unsigned, 8> SizeArgs; 1053587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 1054587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes for (AttributeList::arg_iterator I = Attr.arg_begin(), 1055587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes E = Attr.arg_end(); I!=E; ++I) { 1056587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes // The argument must be an integer constant expression. 1057587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes Expr *Ex = *I; 1058587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes llvm::APSInt ArgNum; 1059587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes if (Ex->isTypeDependent() || Ex->isValueDependent() || 1060587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 1061587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1062587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes << "alloc_size" << Ex->getSourceRange(); 1063587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes return; 1064587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes } 1065587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 1066587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes uint64_t x = ArgNum.getZExtValue(); 1067587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 1068587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes if (x < 1 || x > NumArgs) { 1069587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 1070587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes << "alloc_size" << I.getArgNum() << Ex->getSourceRange(); 1071587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes return; 1072587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes } 1073587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 1074587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes --x; 1075587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes if (HasImplicitThisParam) { 1076587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes if (x == 0) { 1077587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes S.Diag(Attr.getLoc(), 1078587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes diag::err_attribute_invalid_implicit_this_argument) 1079587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes << "alloc_size" << Ex->getSourceRange(); 1080587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes return; 1081587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes } 1082587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes --x; 1083587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes } 1084587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 1085587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes // check if the function argument is of an integer type 1086587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes QualType T = getFunctionOrMethodArgType(D, x).getNonReferenceType(); 1087587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes if (!T->isIntegerType()) { 1088587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1089587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes << "alloc_size" << Ex->getSourceRange(); 1090587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes return; 1091587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes } 1092587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 1093587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes SizeArgs.push_back(x); 1094587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes } 1095587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 1096587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes // check if the function returns a pointer 1097587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes if (!getFunctionType(D)->getResultType()->isAnyPointerType()) { 1098587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes S.Diag(Attr.getLoc(), diag::warn_ns_attribute_wrong_return_type) 1099587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes << "alloc_size" << 0 /*function*/<< 1 /*pointer*/ << D->getSourceRange(); 1100587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes } 1101587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 110296c67d1c2aff532729c9edb297617094d1e77cc1Nuno Lopes D->addAttr(::new (S.Context) AllocSizeAttr(Attr.getRange(), S.Context, 110396c67d1c2aff532729c9edb297617094d1e77cc1Nuno Lopes SizeArgs.data(), SizeArgs.size())); 1104587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes} 1105587de5be6bc8b9d046015b20079d45ac4b98bc14Nuno Lopes 11061b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNonNullAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1107bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 1108bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 110987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 1110fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1111883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 1112eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 1113eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 1114bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 111507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 111607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 111787c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 111887c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 1119eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 1120eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 11215f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned, 10> NonNullArgs; 1122bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1123eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 1124eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 1125bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1126bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1127eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 11287a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Ex = *I; 1129eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 1130ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 1131ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 1132fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1133fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 1134eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 1135eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 1136bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1137eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 1138bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1139eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 1140fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 114130bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 1142eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 1143eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 1144bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1145465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 114607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 114707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 114807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 114907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_attribute_invalid_implicit_this_argument) 115007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "nonnull" << Ex->getSourceRange(); 115107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 115207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 115307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 115407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 1155eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 1156eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 115787c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x).getNonReferenceType(); 1158d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 115968fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 1160dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 1161eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 1162c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 1163fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 11647fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 1165eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 1166bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1167eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 1168eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 1169bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1170bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 1171bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 11727fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 117387c44604325578b8de07d768391c1c9432404f5aChandler Carruth for (unsigned I = 0, E = getFunctionOrMethodNumArgs(D); I != E; ++I) { 117487c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, I).getNonReferenceType(); 1175d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 1176dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 1177d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 117846bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 1179bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1180ee1c08c88649aaea9dd53272a726cd23de533215Ted Kremenek // No pointer arguments? 118160acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 118260acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 118360acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 118460acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 118560acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 11867fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 118760acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 1188eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 11897fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 11907fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 11917fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 1192dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 1193768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NonNullAttr(Attr.getRange(), S.Context, start, 1194cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 1195eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 1196eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 11971b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOwnershipAttr(Sema &S, Decl *D, const AttributeList &AL) { 1198dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 1199dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 1200dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 1201dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 1202dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 1203dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 12042a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 12052a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 1206dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1207dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 1208dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 1209dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 1210dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1211dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1212dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 1213cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 12142a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 12152a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 1216cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 1217dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 1218dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 1219dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1220dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 12212a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 12222a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 1223cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 1224dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 1225dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 1226dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1227dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 12282a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 12292a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 1230cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 1231dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 1232dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 1233dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 1234dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1235dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 12362a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 12372a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 12382a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 12392a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 1240dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1241dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 124287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunction(D) || !hasFunctionProto(D)) { 1243883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) 1244883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << AL.getName() << ExpectedFunction; 1245dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1246dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1247dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 124807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 124907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 125087c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 125187c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 1252dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 12535f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Module = AL.getParameterName()->getName(); 1254dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1255dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 1256dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 1257dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 1258dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 12595f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<unsigned, 10> OwnershipArgs; 1260dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 12612a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 12622a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 1263dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 12647a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = *I; 1265dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 1266dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 1267dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 1268dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 1269dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 1270dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1271dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1272dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1273dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 1274dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1275dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 1276dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 1277dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 1278dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1279dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1280dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 128107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 128207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 128307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 128407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "ownership" << IdxExpr->getSourceRange(); 128507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 128607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 128707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 128807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 128907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1290dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 1291cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 1292cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 1293dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 129487c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x); 1295dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 1296dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 1297dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 1298cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 1299dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 1300dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 1301dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 1302dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1303dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 1304dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1305cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 1306dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 1307dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 13087a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = AL.getArg(0); 1309dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 1310dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 1311dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 1312dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 1313dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 1314dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 1315dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 1316dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1317dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1318dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 1319dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1320dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 1321dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1322dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 1323cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 132487c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<OwnershipAttr>(), 132587c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<OwnershipAttr>(); 1326cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 1327cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 1328cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 1329cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 1330cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 1331cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 1332cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 1333dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1334dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1335dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1336dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1337dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 1338dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1339dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1340dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 1341dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 1342dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 1343cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 1344cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 1345cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 1346cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 1347dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 1348cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 134987c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 1350cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 1351dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 1352dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 1353332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// Whether this declaration has internal linkage for the purposes of 1354332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// things that want to complain about things not have internal linkage. 1355332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCallstatic bool hasEffectivelyInternalLinkage(NamedDecl *D) { 1356332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall switch (D->getLinkage()) { 1357332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case NoLinkage: 1358332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case InternalLinkage: 1359332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 1360332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1361332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // Template instantiations that go from external to unique-external 1362332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // shouldn't get diagnosed. 1363332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case UniqueExternalLinkage: 1364332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 1365332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1366332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case ExternalLinkage: 1367332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return false; 1368332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 1369332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall llvm_unreachable("unknown linkage kind!"); 137011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 137111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 13721b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakRefAttr(Sema &S, Decl *D, const AttributeList &Attr) { 137311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 137411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 137511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 137611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 137711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 137811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 137987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 1380332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1381883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 1382332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return; 1383332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 1384332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 138587c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 1386332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 138711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 138811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 138911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 139011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 139111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 139211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 139311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 139411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 139511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 139611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 139787c44604325578b8de07d768391c1c9432404f5aChandler Carruth const DeclContext *Ctx = D->getDeclContext()->getRedeclContext(); 13987a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 13997a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 1400332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall nd->getNameAsString(); 14017a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 140211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 140311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 140411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 140511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 140611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 140711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 140811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 140911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 141011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 141111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 141211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 141311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 141411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 141511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 141611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 141711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 141811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 141911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 142011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 142111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 1422332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!hasEffectivelyInternalLinkage(nd)) { 1423332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); 142411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 142511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 142611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 142711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 142811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 142911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 143011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 143111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 14327a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 143311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 143411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 143511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 14365cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 143711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 143811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 143911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 144011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 144111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 144211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 1443768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, 1444f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 144511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 144611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 1447768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakRefAttr(Attr.getRange(), S.Context)); 144811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 144911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 14501b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 14516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1452545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 14533c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 14546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1456bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 14577a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 14586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 14596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1460bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 14615cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 1462fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 14633c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 14646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1466bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1467bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getTriple().isOSDarwin()) { 1468f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); 1469f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola return; 1470f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola } 1471f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola 14726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 1473bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1474768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AliasAttr(Attr.getRange(), S.Context, 1475f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 14766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 14776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1478ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramerstatic void handleColdAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1479ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer // Check the attribute arguments. 1480ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer if (!checkAttributeNumArgs(S, Attr, 0)) 1481ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer return; 1482ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer 1483ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer if (!isa<FunctionDecl>(D)) { 1484ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1485ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer << Attr.getName() << ExpectedFunction; 1486ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer return; 1487ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer } 1488ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer 1489ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer if (D->hasAttr<HotAttr>()) { 1490ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 1491ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer << Attr.getName() << "hot"; 1492ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer return; 1493ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer } 1494ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer 1495ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer D->addAttr(::new (S.Context) ColdAttr(Attr.getRange(), S.Context)); 1496ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer} 1497ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer 1498ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramerstatic void handleHotAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1499ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer // Check the attribute arguments. 1500ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer if (!checkAttributeNumArgs(S, Attr, 0)) 1501ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer return; 1502ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer 1503ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer if (!isa<FunctionDecl>(D)) { 1504ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1505ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer << Attr.getName() << ExpectedFunction; 1506ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer return; 1507ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer } 1508ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer 1509ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer if (D->hasAttr<ColdAttr>()) { 1510ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 1511ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer << Attr.getName() << "cold"; 1512ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer return; 1513ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer } 1514ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer 1515ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer D->addAttr(::new (S.Context) HotAttr(Attr.getRange(), S.Context)); 1516ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer} 1517ee409a916e9b97ed6bc2f48d8d6aac6b8b773d7bBenjamin Kramer 15181b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNakedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1519dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 15201731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 1521dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 1522dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 152387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1524dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1525883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 1526dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 1527dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 1528dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 1529768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NakedAttr(Attr.getRange(), S.Context)); 1530dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar} 1531dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 15321b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlwaysInlineAttr(Sema &S, Decl *D, 15331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1534dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 1535831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 15363c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1537af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 1538af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 15395bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 154087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 15415bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1542883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 15435bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 15445bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 1545bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1546768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getRange(), S.Context)); 1547af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 1548af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 15495e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborgstatic void handleTLSModelAttr(Sema &S, Decl *D, 15505e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg const AttributeList &Attr) { 15515e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg // Check the attribute arguments. 15525e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg if (Attr.getNumArgs() != 1) { 15535e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 15545e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg return; 15555e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg } 15565e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg 15575e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg Expr *Arg = Attr.getArg(0); 15585e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg Arg = Arg->IgnoreParenCasts(); 15595e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 15605e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg 15615e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg // Check that it is a string. 15625e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg if (!Str) { 15635e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg S.Diag(Attr.getLoc(), diag::err_attribute_not_string) << "tls_model"; 15645e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg return; 15655e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg } 15665e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg 15675e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg if (!isa<VarDecl>(D) || !cast<VarDecl>(D)->isThreadSpecified()) { 15685e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 15695e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg << Attr.getName() << ExpectedTLSVar; 15705e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg return; 15715e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg } 15725e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg 15735e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg // Check that the value. 15745e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg StringRef Model = Str->getString(); 15755e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg if (Model != "global-dynamic" && Model != "local-dynamic" 15765e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg && Model != "initial-exec" && Model != "local-exec") { 15775e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg S.Diag(Attr.getLoc(), diag::err_attr_tlsmodel_arg); 15785e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg return; 15795e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg } 15805e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg 15815e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg D->addAttr(::new (S.Context) TLSModelAttr(Attr.getRange(), S.Context, 15825e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg Model)); 15835e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg} 15845e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg 15851b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMallocAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1586dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 1587831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 158876168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 158976168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 159076168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 15911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 159287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 15931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 15942cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 1595768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) MallocAttr(Attr.getRange(), S.Context)); 15962cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 15972cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 1598fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 1599fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 16002cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 160176168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 160276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 16031b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMayAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 160434c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman // check the attribute arguments. 16051731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 160634c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman return; 160734c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 1608768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) MayAliasAttr(Attr.getRange(), S.Context)); 160934c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman} 161034c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 16111b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 161256aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 161387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 1614768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoCommonAttr(Attr.getRange(), S.Context)); 1615722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 1616722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1617883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 1618a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 1619a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 16201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 162156aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 162287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 1623768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CommonAttr(Attr.getRange(), S.Context)); 1624722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 1625722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1626883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 1627a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 1628a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 16291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoReturnAttr(Sema &S, Decl *D, const AttributeList &attr) { 163087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 1631711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1632711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) return; 1633711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 163487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 1635711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1636883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 1637711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 1638711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 1639711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1640768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoReturnAttr(attr.getRange(), S.Context)); 1641711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 1642711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1643711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckNoReturnAttr(const AttributeList &attr) { 1644831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (attr.hasParameterOrArguments()) { 1645711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1646711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 1647711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 1648711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 1649711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 1650711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 1651b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 1652b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 16531b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnalyzerNoReturnAttr(Sema &S, Decl *D, 16541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1655b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 1656b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 1657b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 1658b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 16591731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if(!checkAttributeNumArgs(S, Attr, 0)) 16601731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth return; 1661b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 166287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<BlockDecl>(D)) { 166387c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *VD = dyn_cast<ValueDecl>(D); 16643ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 16653ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 1666e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 1667e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 1668b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 1669883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1670b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 167119c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 16726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1673b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 1674768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getRange(), S.Context)); 16756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 16766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 167735cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 16781b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVecReturnAttr(Sema &S, Decl *D, const AttributeList &Attr) { 167935cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 168035cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 168135cc9627340b15232139b3c43fcde5973e7fad30John Thompson 1682f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher According to the PPU ABI specifications, a class with a single member of 1683f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher vector type is returned in memory when used as the return value of a function. 1684f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher This results in inefficient code when implementing vector classes. To return 1685f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher the value in a single vector register, add the vecreturn attribute to the 1686f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher class definition. This attribute is also applicable to struct types. 168735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 168835cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 168935cc9627340b15232139b3c43fcde5973e7fad30John Thompson 169035cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 169135cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 169235cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 169335cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 169435cc9627340b15232139b3c43fcde5973e7fad30John Thompson 169535cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 169635cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 169735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 169835cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 169935cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 170035cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 170135cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 170287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<RecordDecl>(D)) { 170335cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1704883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedClass; 170535cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 170635cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 170735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 170887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (D->getAttr<VecReturnAttr>()) { 170935cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 171035cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 171135cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 171235cc9627340b15232139b3c43fcde5973e7fad30John Thompson 171387c44604325578b8de07d768391c1c9432404f5aChandler Carruth RecordDecl *record = cast<RecordDecl>(D); 171401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 171501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 171601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 171701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 171801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 171901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 172001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 172101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 172201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 172301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 172401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 172501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 1726f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher for (RecordDecl::field_iterator iter = record->field_begin(); 1727f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher iter != record->field_end(); iter++) { 172801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 172901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 173001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 173101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 173201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 173301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 173401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 1735768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) VecReturnAttr(Attr.getRange(), S.Context)); 173635cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 173735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 17381b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDependencyAttr(Sema &S, Decl *D, const AttributeList &Attr) { 173987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<ParmVarDecl>(D)) { 1740bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1741883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrParameter; 1742bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 1743bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 1744bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 1745bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 1746bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 17471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnusedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 174873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 1749831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 17503c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 175173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 175273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 1753bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 175487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<ObjCIvarDecl>(D) && !isFunctionOrMethod(D) && 1755568eae48a4e19c0359cdcd2a33b8ec9812e4abbcDaniel Jasper !isa<TypeDecl>(D) && !isa<LabelDecl>(D) && !isa<FieldDecl>(D)) { 1756fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1757883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableFunctionOrLabel; 175873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 175973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 1760bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1761768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UnusedAttr(Attr.getRange(), S.Context)); 176273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 176373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 1764f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindolastatic void handleReturnsTwiceAttr(Sema &S, Decl *D, 1765f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola const AttributeList &Attr) { 1766f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola // check the attribute arguments. 1767f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola if (Attr.hasParameterOrArguments()) { 1768f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1769f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola return; 1770f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola } 1771f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 1772f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola if (!isa<FunctionDecl>(D)) { 1773f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1774f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola << Attr.getName() << ExpectedFunction; 1775f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola return; 1776f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola } 1777f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 1778f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola D->addAttr(::new (S.Context) ReturnsTwiceAttr(Attr.getRange(), S.Context)); 1779f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola} 1780f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola 17811b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUsedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1782b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 1783831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 1784b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1785b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1786b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 1787bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 178887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { 1789186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 1790b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 1791b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1792b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 179387c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (!isFunctionOrMethod(D)) { 1794b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1795883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 1796b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 1797b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 1798bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1799768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UsedAttr(Attr.getRange(), S.Context)); 1800b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 1801b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 18021b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 18033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1804bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1805bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 18063068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1807bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 18083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 18093068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 18103068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 18117a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 18123068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1813ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1814ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1815fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18163c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 18173068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 18183068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 18193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 18203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1821bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 182287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1823fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1824883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 18253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 18263068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 18273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1828768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ConstructorAttr(Attr.getRange(), S.Context, 1829f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 18303068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 18313068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 18321b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDestructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 18333068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1834bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1835bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 18363068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1837bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 18383068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 18393068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 18403068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 18417a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 18423068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1843ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1844ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1845fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18463c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 18473068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 18483068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 18493068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 18503068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1851bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 185287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1853fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1854883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 18553068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 18563068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 18573068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1858768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) DestructorAttr(Attr.getRange(), S.Context, 1859f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 18603068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 18613068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1862bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramertemplate <typename AttrTy> 1863bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramerstatic void handleAttrWithMessage(Sema &S, Decl *D, const AttributeList &Attr, 1864bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramer const char *Name) { 1865951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1866951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1867bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1868c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1869c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1870bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramer 1871bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramer // Handle the case where the attribute has a text message. 18725f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str; 1873951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1874951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1875c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (!SE) { 1876951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) 1877bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramer << Name; 1878c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1879c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1880951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 18816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1882bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1883bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramer D->addAttr(::new (S.Context) AttrTy(Attr.getRange(), S.Context, Str)); 1884bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 1885bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 1886742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanianstatic void handleArcWeakrefUnavailableAttr(Sema &S, Decl *D, 1887742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian const AttributeList &Attr) { 1888742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian unsigned NumArgs = Attr.getNumArgs(); 1889742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian if (NumArgs > 0) { 1890742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1891742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian return; 1892742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian } 1893742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 1894742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian D->addAttr(::new (S.Context) ArcWeakrefUnavailableAttr( 1895768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis Attr.getRange(), S.Context)); 1896742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian} 1897742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian 1898b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beardstatic void handleObjCRootClassAttr(Sema &S, Decl *D, 1899b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard const AttributeList &Attr) { 1900b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard if (!isa<ObjCInterfaceDecl>(D)) { 1901b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 1902b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard return; 1903b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard } 1904b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard 1905b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard unsigned NumArgs = Attr.getNumArgs(); 1906b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard if (NumArgs > 0) { 1907b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1908b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard return; 1909b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard } 1910b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard 1911b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard D->addAttr(::new (S.Context) ObjCRootClassAttr(Attr.getRange(), S.Context)); 1912b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard} 1913b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard 191471207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenekstatic void handleObjCRequiresPropertyDefsAttr(Sema &S, Decl *D, 1915e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian const AttributeList &Attr) { 1916341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian if (!isa<ObjCInterfaceDecl>(D)) { 1917341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_suppress_autosynthesis); 1918341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian return; 1919341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian } 1920341b8be2b8069e09eb4d928bebf5d55a50515614Fariborz Jahanian 1921e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian unsigned NumArgs = Attr.getNumArgs(); 1922e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian if (NumArgs > 0) { 1923e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 0; 1924e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian return; 1925e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian } 1926e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian 192771207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek D->addAttr(::new (S.Context) ObjCRequiresPropertyDefsAttr( 1928e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian Attr.getRange(), S.Context)); 1929e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian} 1930e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian 1931fad5de9d674521017460f8445e2f81e2a1086290Jordy Rosestatic bool checkAvailabilityAttr(Sema &S, SourceRange Range, 1932fad5de9d674521017460f8445e2f81e2a1086290Jordy Rose IdentifierInfo *Platform, 1933fad5de9d674521017460f8445e2f81e2a1086290Jordy Rose VersionTuple Introduced, 1934fad5de9d674521017460f8445e2f81e2a1086290Jordy Rose VersionTuple Deprecated, 1935fad5de9d674521017460f8445e2f81e2a1086290Jordy Rose VersionTuple Obsoleted) { 19365f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef PlatformName 19370a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor = AvailabilityAttr::getPrettyPlatformName(Platform->getName()); 19383b294360febd89e3383143af086efe2014571afaRafael Espindola if (PlatformName.empty()) 19390a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor PlatformName = Platform->getName(); 19400a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 1941c90df6a0ad61041e976e0136c29e6d57b17cba3dDouglas Gregor // Ensure that Introduced <= Deprecated <= Obsoleted (although not all 19420a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor // of these steps are needed). 19433b294360febd89e3383143af086efe2014571afaRafael Espindola if (!Introduced.empty() && !Deprecated.empty() && 19443b294360febd89e3383143af086efe2014571afaRafael Espindola !(Introduced <= Deprecated)) { 19453b294360febd89e3383143af086efe2014571afaRafael Espindola S.Diag(Range.getBegin(), diag::warn_availability_version_ordering) 19463b294360febd89e3383143af086efe2014571afaRafael Espindola << 1 << PlatformName << Deprecated.getAsString() 19473b294360febd89e3383143af086efe2014571afaRafael Espindola << 0 << Introduced.getAsString(); 19483b294360febd89e3383143af086efe2014571afaRafael Espindola return true; 19490a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 19500a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 19513b294360febd89e3383143af086efe2014571afaRafael Espindola if (!Introduced.empty() && !Obsoleted.empty() && 19523b294360febd89e3383143af086efe2014571afaRafael Espindola !(Introduced <= Obsoleted)) { 19533b294360febd89e3383143af086efe2014571afaRafael Espindola S.Diag(Range.getBegin(), diag::warn_availability_version_ordering) 19543b294360febd89e3383143af086efe2014571afaRafael Espindola << 2 << PlatformName << Obsoleted.getAsString() 19553b294360febd89e3383143af086efe2014571afaRafael Espindola << 0 << Introduced.getAsString(); 19563b294360febd89e3383143af086efe2014571afaRafael Espindola return true; 19573b294360febd89e3383143af086efe2014571afaRafael Espindola } 19583b294360febd89e3383143af086efe2014571afaRafael Espindola 19593b294360febd89e3383143af086efe2014571afaRafael Espindola if (!Deprecated.empty() && !Obsoleted.empty() && 19603b294360febd89e3383143af086efe2014571afaRafael Espindola !(Deprecated <= Obsoleted)) { 19613b294360febd89e3383143af086efe2014571afaRafael Espindola S.Diag(Range.getBegin(), diag::warn_availability_version_ordering) 19623b294360febd89e3383143af086efe2014571afaRafael Espindola << 2 << PlatformName << Obsoleted.getAsString() 19633b294360febd89e3383143af086efe2014571afaRafael Espindola << 1 << Deprecated.getAsString(); 19643b294360febd89e3383143af086efe2014571afaRafael Espindola return true; 19653b294360febd89e3383143af086efe2014571afaRafael Espindola } 19663b294360febd89e3383143af086efe2014571afaRafael Espindola 19673b294360febd89e3383143af086efe2014571afaRafael Espindola return false; 19683b294360febd89e3383143af086efe2014571afaRafael Espindola} 19693b294360febd89e3383143af086efe2014571afaRafael Espindola 1970599f1b7100745efacb7ded6c176cb7feade114a5Rafael EspindolaAvailabilityAttr *Sema::mergeAvailabilityAttr(Decl *D, SourceRange Range, 1971599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola IdentifierInfo *Platform, 1972599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola VersionTuple Introduced, 1973599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola VersionTuple Deprecated, 1974599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola VersionTuple Obsoleted, 1975599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola bool IsUnavailable, 1976599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola StringRef Message) { 197798ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VersionTuple MergedIntroduced = Introduced; 197898ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VersionTuple MergedDeprecated = Deprecated; 197998ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VersionTuple MergedObsoleted = Obsoleted; 19803b294360febd89e3383143af086efe2014571afaRafael Espindola bool FoundAny = false; 19813b294360febd89e3383143af086efe2014571afaRafael Espindola 198298ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if (D->hasAttrs()) { 198398ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola AttrVec &Attrs = D->getAttrs(); 198498ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola for (unsigned i = 0, e = Attrs.size(); i != e;) { 198598ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola const AvailabilityAttr *OldAA = dyn_cast<AvailabilityAttr>(Attrs[i]); 198698ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if (!OldAA) { 198798ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola ++i; 198898ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola continue; 198998ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola } 199098ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola 199198ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola IdentifierInfo *OldPlatform = OldAA->getPlatform(); 199298ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if (OldPlatform != Platform) { 199398ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola ++i; 199498ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola continue; 199598ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola } 199698ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola 199798ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola FoundAny = true; 199898ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VersionTuple OldIntroduced = OldAA->getIntroduced(); 199998ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VersionTuple OldDeprecated = OldAA->getDeprecated(); 200098ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VersionTuple OldObsoleted = OldAA->getObsoleted(); 200198ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola bool OldIsUnavailable = OldAA->getUnavailable(); 200298ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola StringRef OldMessage = OldAA->getMessage(); 200398ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola 200498ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if ((!OldIntroduced.empty() && !Introduced.empty() && 200598ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola OldIntroduced != Introduced) || 200698ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola (!OldDeprecated.empty() && !Deprecated.empty() && 200798ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola OldDeprecated != Deprecated) || 200898ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola (!OldObsoleted.empty() && !Obsoleted.empty() && 200998ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola OldObsoleted != Obsoleted) || 201098ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola (OldIsUnavailable != IsUnavailable) || 201198ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola (OldMessage != Message)) { 201298ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola Diag(OldAA->getLocation(), diag::warn_mismatched_availability); 201398ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola Diag(Range.getBegin(), diag::note_previous_attribute); 201498ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola Attrs.erase(Attrs.begin() + i); 201598ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola --e; 201698ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola continue; 201798ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola } 201898ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola 201998ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VersionTuple MergedIntroduced2 = MergedIntroduced; 202098ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VersionTuple MergedDeprecated2 = MergedDeprecated; 202198ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VersionTuple MergedObsoleted2 = MergedObsoleted; 202298ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola 202398ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if (MergedIntroduced2.empty()) 202498ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola MergedIntroduced2 = OldIntroduced; 202598ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if (MergedDeprecated2.empty()) 202698ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola MergedDeprecated2 = OldDeprecated; 202798ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if (MergedObsoleted2.empty()) 202898ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola MergedObsoleted2 = OldObsoleted; 202998ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola 203098ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if (checkAvailabilityAttr(*this, OldAA->getRange(), Platform, 203198ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola MergedIntroduced2, MergedDeprecated2, 203298ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola MergedObsoleted2)) { 203398ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola Attrs.erase(Attrs.begin() + i); 203498ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola --e; 203598ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola continue; 203698ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola } 203798ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola 203898ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola MergedIntroduced = MergedIntroduced2; 203998ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola MergedDeprecated = MergedDeprecated2; 204098ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola MergedObsoleted = MergedObsoleted2; 204198ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola ++i; 204298ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola } 20430a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 20440a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 20453b294360febd89e3383143af086efe2014571afaRafael Espindola if (FoundAny && 20463b294360febd89e3383143af086efe2014571afaRafael Espindola MergedIntroduced == Introduced && 20473b294360febd89e3383143af086efe2014571afaRafael Espindola MergedDeprecated == Deprecated && 20483b294360febd89e3383143af086efe2014571afaRafael Espindola MergedObsoleted == Obsoleted) 2049599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return NULL; 20503b294360febd89e3383143af086efe2014571afaRafael Espindola 205198ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if (!checkAvailabilityAttr(*this, Range, Platform, MergedIntroduced, 20523b294360febd89e3383143af086efe2014571afaRafael Espindola MergedDeprecated, MergedObsoleted)) { 2053599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return ::new (Context) AvailabilityAttr(Range, Context, Platform, 2054599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola Introduced, Deprecated, 2055599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola Obsoleted, IsUnavailable, Message); 20560a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 2057599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return NULL; 20583b294360febd89e3383143af086efe2014571afaRafael Espindola} 20590a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 20603b294360febd89e3383143af086efe2014571afaRafael Espindolastatic void handleAvailabilityAttr(Sema &S, Decl *D, 20613b294360febd89e3383143af086efe2014571afaRafael Espindola const AttributeList &Attr) { 20623b294360febd89e3383143af086efe2014571afaRafael Espindola IdentifierInfo *Platform = Attr.getParameterName(); 20633b294360febd89e3383143af086efe2014571afaRafael Espindola SourceLocation PlatformLoc = Attr.getParameterLoc(); 20643b294360febd89e3383143af086efe2014571afaRafael Espindola 20653b294360febd89e3383143af086efe2014571afaRafael Espindola if (AvailabilityAttr::getPrettyPlatformName(Platform->getName()).empty()) 20663b294360febd89e3383143af086efe2014571afaRafael Espindola S.Diag(PlatformLoc, diag::warn_availability_unknown_platform) 20673b294360febd89e3383143af086efe2014571afaRafael Espindola << Platform; 20683b294360febd89e3383143af086efe2014571afaRafael Espindola 20693b294360febd89e3383143af086efe2014571afaRafael Espindola AvailabilityChange Introduced = Attr.getAvailabilityIntroduced(); 20703b294360febd89e3383143af086efe2014571afaRafael Espindola AvailabilityChange Deprecated = Attr.getAvailabilityDeprecated(); 20713b294360febd89e3383143af086efe2014571afaRafael Espindola AvailabilityChange Obsoleted = Attr.getAvailabilityObsoleted(); 20723b294360febd89e3383143af086efe2014571afaRafael Espindola bool IsUnavailable = Attr.getUnavailableLoc().isValid(); 2073006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian StringRef Str; 2074006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian const StringLiteral *SE = 2075006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian dyn_cast_or_null<const StringLiteral>(Attr.getMessageExpr()); 2076006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian if (SE) 2077006e42f0c8b65b783d565ef10b938a9e82fc02e3Fariborz Jahanian Str = SE->getString(); 20783b294360febd89e3383143af086efe2014571afaRafael Espindola 2079599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola AvailabilityAttr *NewAttr = S.mergeAvailabilityAttr(D, Attr.getRange(), 2080599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola Platform, 2081599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola Introduced.Version, 2082599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola Deprecated.Version, 2083599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola Obsoleted.Version, 2084599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola IsUnavailable, Str); 2085599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola if (NewAttr) 2086599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola D->addAttr(NewAttr); 208798ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola} 208898ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola 2089599f1b7100745efacb7ded6c176cb7feade114a5Rafael EspindolaVisibilityAttr *Sema::mergeVisibilityAttr(Decl *D, SourceRange Range, 2090599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola VisibilityAttr::VisibilityType Vis) { 2091dd44f34301316b814277d6a8c146d86c7115330bRafael Espindola if (isa<TypedefNameDecl>(D)) { 2092dd44f34301316b814277d6a8c146d86c7115330bRafael Espindola Diag(Range.getBegin(), diag::warn_attribute_ignored) << "visibility"; 2093599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return NULL; 2094dd44f34301316b814277d6a8c146d86c7115330bRafael Espindola } 209598ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VisibilityAttr *ExistingAttr = D->getAttr<VisibilityAttr>(); 209698ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if (ExistingAttr) { 209798ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola VisibilityAttr::VisibilityType ExistingVis = ExistingAttr->getVisibility(); 209898ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola if (ExistingVis == Vis) 2099599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return NULL; 210098ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola Diag(ExistingAttr->getLocation(), diag::err_mismatched_visibility); 210198ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola Diag(Range.getBegin(), diag::note_previous_attribute); 210298ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola D->dropAttr<VisibilityAttr>(); 210398ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola } 2104599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return ::new (Context) VisibilityAttr(Range, Context, Vis); 21050a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor} 21060a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 21071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVisibilityAttr(Sema &S, Decl *D, const AttributeList &Attr) { 21086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 21091731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if(!checkAttributeNumArgs(S, Attr, 1)) 21106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2111bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21127a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 21136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 21146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 2115bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21165cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 2117fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 21183c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 21196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 21206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2121bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 21225f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef TypeStr = Str->getString(); 2123cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 2124bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2125c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 2126cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 2127c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 2128cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 2129c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 2130cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 21314188760f6bb20f91c6883dffd89204419f852deeJohn McCall else if (TypeStr == "protected") { 21324188760f6bb20f91c6883dffd89204419f852deeJohn McCall // Complain about attempts to use protected visibility on targets 21334188760f6bb20f91c6883dffd89204419f852deeJohn McCall // (like Darwin) that don't support it. 21344188760f6bb20f91c6883dffd89204419f852deeJohn McCall if (!S.Context.getTargetInfo().hasProtectedVisibility()) { 21354188760f6bb20f91c6883dffd89204419f852deeJohn McCall S.Diag(Attr.getLoc(), diag::warn_attribute_protected_visibility); 21364188760f6bb20f91c6883dffd89204419f852deeJohn McCall type = VisibilityAttr::Default; 21374188760f6bb20f91c6883dffd89204419f852deeJohn McCall } else { 21384188760f6bb20f91c6883dffd89204419f852deeJohn McCall type = VisibilityAttr::Protected; 21394188760f6bb20f91c6883dffd89204419f852deeJohn McCall } 21404188760f6bb20f91c6883dffd89204419f852deeJohn McCall } else { 214108631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 21426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 21436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2144bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2145599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola VisibilityAttr *NewAttr = S.mergeVisibilityAttr(D, Attr.getRange(), type); 2146599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola if (NewAttr) 2147599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola D->addAttr(NewAttr); 21486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 21496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 21501b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCMethodFamilyAttr(Sema &S, Decl *decl, 21511b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 2152d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); 2153d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (!method) { 215487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 2155883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedMethod; 2156d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 2157d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 2158d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 215987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 0 || !Attr.getParameterName()) { 216087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!Attr.getParameterName() && Attr.getNumArgs() == 1) { 216187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 2162d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall << "objc_method_family" << 1; 2163d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } else { 216487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2165d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 216687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2167d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 2168d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 2169d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 21705f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef param = Attr.getParameterName()->getName(); 2171d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodFamilyAttr::FamilyKind family; 2172d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (param == "none") 2173d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_None; 2174d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "alloc") 2175d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_alloc; 2176d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "copy") 2177d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_copy; 2178d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "init") 2179d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_init; 2180d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "mutableCopy") 2181d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_mutableCopy; 2182d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "new") 2183d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_new; 2184d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else { 2185d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // Just warn and ignore it. This is future-proof against new 2186d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // families being used in system headers. 218787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getParameterLoc(), diag::warn_unknown_method_family); 2188d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 2189d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 2190d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 2191f85e193739c953358c865005855253af4f68a497John McCall if (family == ObjCMethodFamilyAttr::OMF_init && 2192f85e193739c953358c865005855253af4f68a497John McCall !method->getResultType()->isObjCObjectPointerType()) { 2193f85e193739c953358c865005855253af4f68a497John McCall S.Diag(method->getLocation(), diag::err_init_method_bad_return_type) 2194f85e193739c953358c865005855253af4f68a497John McCall << method->getResultType(); 2195f85e193739c953358c865005855253af4f68a497John McCall // Ignore the attribute. 2196f85e193739c953358c865005855253af4f68a497John McCall return; 2197f85e193739c953358c865005855253af4f68a497John McCall } 2198f85e193739c953358c865005855253af4f68a497John McCall 2199768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis method->addAttr(new (S.Context) ObjCMethodFamilyAttr(Attr.getRange(), 2200f85e193739c953358c865005855253af4f68a497John McCall S.Context, family)); 2201d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall} 2202d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 22031b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCExceptionAttr(Sema &S, Decl *D, 22041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 22051731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 22060db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 2207bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22080db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 22090db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 22100db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 22110db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 22120db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 2213bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2214768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getRange(), S.Context)); 22150db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 22160db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 22171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCNSObject(Sema &S, Decl *D, const AttributeList &Attr) { 2218fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 22192b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2220fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 2221fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2222162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 2223fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 2224fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 22256217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 2226fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 2227fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 2228fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 2229fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 22303427682d365174f5d69d55e2c6deef49ace0668bFariborz Jahanian else if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) { 22313427682d365174f5d69d55e2c6deef49ace0668bFariborz Jahanian QualType T = PD->getType(); 22323427682d365174f5d69d55e2c6deef49ace0668bFariborz Jahanian if (!T->isPointerType() || 22333427682d365174f5d69d55e2c6deef49ace0668bFariborz Jahanian !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 22343427682d365174f5d69d55e2c6deef49ace0668bFariborz Jahanian S.Diag(PD->getLocation(), diag::err_nsobject_attribute); 22353427682d365174f5d69d55e2c6deef49ace0668bFariborz Jahanian return; 22363427682d365174f5d69d55e2c6deef49ace0668bFariborz Jahanian } 22373427682d365174f5d69d55e2c6deef49ace0668bFariborz Jahanian } 22383427682d365174f5d69d55e2c6deef49ace0668bFariborz Jahanian else { 2239f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // It is okay to include this attribute on properties, e.g.: 2240f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // 2241f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // @property (retain, nonatomic) struct Bork *Q __attribute__((NSObject)); 2242f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // 2243f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // In this case it follows tradition and suppresses an error in the above 2244f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek // case. 22459b2eb7b1a1bdd1fe4acb200b448312ef407283dfFariborz Jahanian S.Diag(D->getLocation(), diag::warn_nsobject_attribute); 2246f6e88d7592a5b5ab19890a41ff71f5bf8ca2a9faTed Kremenek } 2247768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getRange(), S.Context)); 2248fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 2249fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 2250bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 22511b03c8719e2e45cf2769430335d7e71f18e6634aChandler CarruthhandleOverloadableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2252f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 22532b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2254f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 2255f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 2256f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 2257f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 2258f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 2259f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 2260f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 2261f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 2262768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) OverloadableAttr(Attr.getRange(), S.Context)); 2263f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 2264f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 22651b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleBlocksAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2266bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 2267fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 22683c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 22699eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 22709eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 2271bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22729eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 22733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 22749eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 22759eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 2276bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2277cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 227892e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 22799eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 22809eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 2281fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 22823c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 22839eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 22849eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 2285bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2286768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) BlocksAttr(Attr.getRange(), S.Context, type)); 22879eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 22889eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 22891b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSentinelAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2290770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 2291770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 2292bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 2293770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 2294bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 2295bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22963323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall unsigned sentinel = 0; 2297770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 22987a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 2299770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 2300ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 2301ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 2302fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 23033c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 2304770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 2305770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 2306bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23073323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall if (Idx.isSigned() && Idx.isNegative()) { 2308fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 2309fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 2310770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 2311770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 23123323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall 23133323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall sentinel = Idx.getZExtValue(); 2314770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 2315770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 23163323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall unsigned nullPos = 0; 2317770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 23187a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(1); 2319770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 2320ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 2321ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 2322fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 23233c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 2324770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 2325770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 2326770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 2327bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23283323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall if ((Idx.isSigned() && Idx.isNegative()) || nullPos > 1) { 2329770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 2330770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 2331fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 2332fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 2333770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 2334770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 2335770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 2336770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 233787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 23383323fad09e9f2c280e0dbe767be398203bb0c6acJohn McCall const FunctionType *FT = FD->getType()->castAs<FunctionType>(); 2339897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 2340897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 2341897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 2342897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 2343bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2344897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 23453bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 2346770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 2347bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 234887c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 2349770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 23503bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 2351770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 23522f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 2353a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman } else if (BlockDecl *BD = dyn_cast<BlockDecl>(D)) { 2354a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman if (!BD->isVariadic()) { 2355a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 1; 2356a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman return; 2357a0b2ba1d0ec27240f922c95b5acd8df905e3d3e0Eli Friedman } 235887c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 23592f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 2360daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 236187c44604325578b8de07d768391c1c9432404f5aChandler Carruth const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(D) 2362f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 23632f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 23643bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 23653bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 23662f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 23672f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 2368ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 23692f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2370883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 23712f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 23722f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 2373770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 2374fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2375883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 2376770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 2377770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 2378768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) SentinelAttr(Attr.getRange(), S.Context, sentinel, 2379f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher nullPos)); 2380770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 2381770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 23821b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWarnUnusedResult(Sema &S, Decl *D, const AttributeList &Attr) { 2383026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 23841731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2385026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 2386026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 2387f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 2388026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2389883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 2390026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 2391026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 2392bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2393f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 2394f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 2395f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 2396f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 2397f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 2398f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 2399f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 2400f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 2401f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 2402f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 2403f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 2404f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 2405768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getRange(), S.Context)); 2406026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 2407026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 24081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakAttr(Sema &S, Decl *D, const AttributeList &Attr) { 24096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 241087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.hasParameterOrArguments()) { 241187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 24126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 24136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 24146e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 241587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 241613c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian if (isa<CXXRecordDecl>(D)) { 241713c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian D->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); 241813c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian return; 241913c7fcceb9fd96f5be03af038ce16b05bb5e9598Fariborz Jahanian } 242087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 242187c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedVariableOrFunction; 2422f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 2423f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 2424f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 242587c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 2426332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 2427332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // 'weak' only applies to declarations with external linkage. 2428332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (hasEffectivelyInternalLinkage(nd)) { 242987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_weak_static); 24306e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 24316e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 2432bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2433768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis nd->addAttr(::new (S.Context) WeakAttr(Attr.getRange(), S.Context)); 24346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 24356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakImportAttr(Sema &S, Decl *D, const AttributeList &Attr) { 24376e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 24381731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 24396e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 24401731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 24416e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 24426e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 24436e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 24440a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (!D->canBeWeakImported(isDef)) { 24450a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (isDef) 24460a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Attr.getLoc(), 24470a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor diag::warn_attribute_weak_import_invalid_on_definition) 24480a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << "weak_import" << 2 /*variable and function*/; 2449def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D) || 2450bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor (S.Context.getTargetInfo().getTriple().isOSDarwin() && 245190eed219f4215adf300800ab7478f568c7a4b2a3Fariborz Jahanian (isa<ObjCInterfaceDecl>(D) || isa<EnumDecl>(D)))) { 2452def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor // Nothing to warn about here. 2453def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor } else 2454c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2455883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 24566e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 24576e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 24586e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 24596e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 2460768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) WeakImportAttr(Attr.getRange(), S.Context)); 24616e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 24626e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 24630df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner// Handles reqd_work_group_size and work_group_size_hint. 24640df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattnerstatic void handleWorkGroupSize(Sema &S, Decl *D, 24654ae89bc757f16baeb74ebeea81c43dc5201cb4f2Nick Lewycky const AttributeList &Attr) { 24660df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner assert(Attr.getKind() == AttributeList::AT_ReqdWorkGroupSize 24670df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner || Attr.getKind() == AttributeList::AT_WorkGroupSizeHint); 24680df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner 24696f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 24700df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner if (!checkAttributeNumArgs(S, Attr, 3)) return; 24716f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 24726f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 24736f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 24747a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(i); 24756f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 2476ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 2477ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 24786f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 24790df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner << Attr.getName()->getName() << E->getSourceRange(); 24806f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 24816f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 24826f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 24836f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 24840df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner 24850df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner if (Attr.getKind() == AttributeList::AT_ReqdWorkGroupSize 24860df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner && D->hasAttr<ReqdWorkGroupSizeAttr>()) { 24870df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner ReqdWorkGroupSizeAttr *A = D->getAttr<ReqdWorkGroupSizeAttr>(); 24880df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner if (!(A->getXDim() == WGSize[0] && 24890df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner A->getYDim() == WGSize[1] && 24900df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner A->getZDim() == WGSize[2])) { 24910df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner S.Diag(Attr.getLoc(), diag::warn_duplicate_attribute) << 24920df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner Attr.getName(); 24930df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner } 24940df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner } 24950df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner 24960df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner if (Attr.getKind() == AttributeList::AT_WorkGroupSizeHint 24970df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner && D->hasAttr<WorkGroupSizeHintAttr>()) { 24980df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner WorkGroupSizeHintAttr *A = D->getAttr<WorkGroupSizeHintAttr>(); 24990df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner if (!(A->getXDim() == WGSize[0] && 25000df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner A->getYDim() == WGSize[1] && 25010df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner A->getZDim() == WGSize[2])) { 25020df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner S.Diag(Attr.getLoc(), diag::warn_duplicate_attribute) << 25030df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner Attr.getName(); 25040df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner } 25050df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner } 25060df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner 25070df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner if (Attr.getKind() == AttributeList::AT_ReqdWorkGroupSize) 25080df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner D->addAttr(::new (S.Context) 25090df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner ReqdWorkGroupSizeAttr(Attr.getRange(), S.Context, 25100df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner WGSize[0], WGSize[1], WGSize[2])); 25110df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner else 25120df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner D->addAttr(::new (S.Context) 25130df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner WorkGroupSizeHintAttr(Attr.getRange(), S.Context, 25140df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner WGSize[0], WGSize[1], WGSize[2])); 25156f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 25166f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 2517599f1b7100745efacb7ded6c176cb7feade114a5Rafael EspindolaSectionAttr *Sema::mergeSectionAttr(Decl *D, SourceRange Range, 2518599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola StringRef Name) { 2519420efd83934ee78f04d73880e2ed1b7fdef3328cRafael Espindola if (SectionAttr *ExistingAttr = D->getAttr<SectionAttr>()) { 2520420efd83934ee78f04d73880e2ed1b7fdef3328cRafael Espindola if (ExistingAttr->getName() == Name) 2521599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return NULL; 2522420efd83934ee78f04d73880e2ed1b7fdef3328cRafael Espindola Diag(ExistingAttr->getLocation(), diag::warn_mismatched_section); 2523420efd83934ee78f04d73880e2ed1b7fdef3328cRafael Espindola Diag(Range.getBegin(), diag::note_previous_attribute); 2524599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return NULL; 2525420efd83934ee78f04d73880e2ed1b7fdef3328cRafael Espindola } 2526599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return ::new (Context) SectionAttr(Range, Context, Name); 2527420efd83934ee78f04d73880e2ed1b7fdef3328cRafael Espindola} 2528420efd83934ee78f04d73880e2ed1b7fdef3328cRafael Espindola 25291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSectionAttr(Sema &S, Decl *D, const AttributeList &Attr) { 253017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 25311731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 253217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 253317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 253417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 253517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 25367a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 2537797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 253817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 2539797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 254017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 254117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 25421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2543797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 2544bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor std::string Error = S.Context.getTargetInfo().isValidSectionSpecifier(SE->getString()); 2545a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 2546a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 2547a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 2548797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 2549797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 25501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2551a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 2552a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 2553a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 2554a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 2555a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 2556599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola SectionAttr *NewAttr = S.mergeSectionAttr(D, Attr.getRange(), 2557599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola SE->getString()); 2558599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola if (NewAttr) 2559599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola D->addAttr(NewAttr); 256017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 256117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 25626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNothrowAttr(Sema &S, Decl *D, const AttributeList &Attr) { 25646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 2565831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 25663c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 25676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 25686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2569b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 257087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (NoThrowAttr *Existing = D->getAttr<NoThrowAttr>()) { 2571b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 2572ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis Existing->setRange(Attr.getRange()); 2573b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 2574768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoThrowAttr(Attr.getRange(), S.Context)); 2575b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 25766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 25776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 25781b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2579232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 2580831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 25813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2582232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 2583232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 2584bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 258587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ConstAttr *Existing = D->getAttr<ConstAttr>()) { 2586b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 2587ffcc3105d223899740e79f3f8199f3881df4d1deArgyrios Kyrtzidis Existing->setRange(Attr.getRange()); 2588b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 2589768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ConstAttr(Attr.getRange(), S.Context)); 2590b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 2591232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 2592232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 25931b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePureAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2594232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 25951731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 2596232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 2597bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2598768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PureAttr(Attr.getRange(), S.Context)); 2599232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 2600232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 26011b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCleanupAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2602bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 2603f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2604f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2605f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2606bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2607f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 2608f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2609f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2610f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2611bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 261287c44604325578b8de07d768391c1c9432404f5aChandler Carruth VarDecl *VD = dyn_cast<VarDecl>(D); 2613bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2614f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 2615f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 2616f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2617f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2618bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2619f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 2620c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 2621f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 2622f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis = S.LookupSingleName(S.TUScope, Attr.getParameterName(), 2623f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis Attr.getParameterLoc(), Sema::LookupOrdinaryName); 2624f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 2625f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << 2626f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 2627f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2628f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2629bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2630f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 2631f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 2632f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 2633f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_arg_not_function) 2634f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 2635f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2636f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2637f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 2638f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 2639f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 2640f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_func_must_take_one_arg) 2641f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 2642f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 2643f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 2644bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 264589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 264689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 264789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 264889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 2649b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), 2650b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor ParamTy, Ty) != Sema::Compatible) { 2651f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 265289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 265389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 265489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 265589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 2656bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2657768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CleanupAttr(Attr.getRange(), S.Context, FD)); 26585f2987c11491edb186401d4e8eced275f0ea7c5eEli Friedman S.MarkFunctionReferenced(Attr.getParameterLoc(), FD); 2659f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 2660f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 2661bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 2662bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 26631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatArgAttr(Sema &S, Decl *D, const AttributeList &Attr) { 26641731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 26655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 26661731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 266787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 26685b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2669883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 26705b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 26715b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 267207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 267307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 267407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 267587c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 267687c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 26775b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 267807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 26795b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 26807a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 26815b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 2682ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 2683ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 26845b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 26855b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 26865b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 26875b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 2688bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 26895b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 26905b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 26915b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 26925b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 26935b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 2694bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 26955b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 2696bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 269707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 269807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (ArgIdx == 0) { 269907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 270007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "format_arg" << IdxExpr->getSourceRange(); 270107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 270207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 270307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth ArgIdx--; 270407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 270507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 27065b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 270787c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 2708bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 27095b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 27105b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 27115b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 27125b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 27136217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 27145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 27155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2716bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 27175b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 27185b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 2719bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 272087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Ty = getFunctionOrMethodResultType(D); 27215b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 27225b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 27235b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 27246217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 27255b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 27265b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 2727bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 27285b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 27295b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 2730bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 2731bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2732768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FormatArgAttr(Attr.getRange(), S.Context, 273307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth Idx.getZExtValue())); 27345b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 27355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 27362b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 27372b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 27382b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 27392b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 27402b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 27413c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 27422b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 27432b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 27442b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 27452b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 27462b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 27475f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnerstatic FormatAttrKind getFormatAttrKind(StringRef Format) { 2748c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer return llvm::StringSwitch<FormatAttrKind>(Format) 2749c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer // Check for formats that get handled specially. 2750c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer .Case("NSString", NSStringFormat) 2751c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer .Case("CFString", CFStringFormat) 2752c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer .Case("strftime", StrftimeFormat) 2753c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer 2754c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer // Otherwise, check for supported formats. 2755c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer .Cases("scanf", "printf", "printf0", "strfmon", SupportedFormat) 2756c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer .Cases("cmn_err", "vcmn_err", "zcmn_err", SupportedFormat) 2757c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer .Case("kprintf", SupportedFormat) // OpenBSD. 2758c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer 2759c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer .Cases("gcc_diag", "gcc_cdiag", "gcc_cxxdiag", "gcc_tdiag", IgnoredFormat) 2760c51bb99ef9daa17084dea688400b40322289aefeBenjamin Kramer .Default(InvalidFormat); 27612b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 27622b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 2763521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 2764521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 27651b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleInitPriorityAttr(Sema &S, Decl *D, 27661b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 27674e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!S.getLangOpts().CPlusPlus) { 2768521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2769521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2770521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 2771521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 277287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) || S.getCurFunctionOrMethodDecl()) { 2773b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 2774b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 2775b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 2776b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 277787c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = dyn_cast<VarDecl>(D)->getType(); 2778b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 2779b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 2780b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 2781b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 2782b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 2783b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 2784b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 2785b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 2786521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 2787521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2788521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2789521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2790521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 27917a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *priorityExpr = Attr.getArg(0); 2792b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 2793521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 2794521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 2795521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 2796521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 2797521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 2798521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2799521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2800521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 28019f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 2802521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 2803521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 2804521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 2805521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 2806521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 2807521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 2808768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) InitPriorityAttr(Attr.getRange(), S.Context, 2809f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher prioritynum)); 2810521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 2811521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 2812599f1b7100745efacb7ded6c176cb7feade114a5Rafael EspindolaFormatAttr *Sema::mergeFormatAttr(Decl *D, SourceRange Range, StringRef Format, 2813599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola int FormatIdx, int FirstArg) { 2814bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola // Check whether we already have an equivalent format attribute. 2815bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola for (specific_attr_iterator<FormatAttr> 2816bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola i = D->specific_attr_begin<FormatAttr>(), 2817bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola e = D->specific_attr_end<FormatAttr>(); 2818bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola i != e ; ++i) { 2819bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola FormatAttr *f = *i; 2820bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola if (f->getType() == Format && 2821bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola f->getFormatIdx() == FormatIdx && 2822bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola f->getFirstArg() == FirstArg) { 2823bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola // If we don't have a valid location for this attribute, adopt the 2824bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola // location. 2825bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola if (f->getLocation().isInvalid()) 2826bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola f->setRange(Range); 2827599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return NULL; 2828bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola } 2829bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola } 2830bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola 2831599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola return ::new (Context) FormatAttr(Range, Context, Format, FormatIdx, 2832599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola FirstArg); 2833bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola} 2834bf9da1f8292bb66720ada94a050ede9dca17f60aRafael Espindola 2835bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 2836bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 28371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatAttr(Sema &S, Decl *D, const AttributeList &Attr) { 28386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2839545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 2840fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 28413c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 28426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 28436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 28446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2845545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 28463c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 28476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 28486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 28496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 285087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethodOrBlock(D) || !hasFunctionProto(D)) { 2851fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2852883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 28536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 28546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 28556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 285607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 285707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 285887c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 285987c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 28606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 28616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 28625f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Format = Attr.getParameterName()->getName(); 28636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 28646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 28652b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 28662b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 28672b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 28682b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 28692b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 28703c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 28713c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 28723c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 28733c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 28742b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 2875fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 287601eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 28776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 28786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 28796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 28806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 28817a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 2882803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 2883ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 2884ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 2885fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 28863c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 28876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 28886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 28896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 28906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 2891fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 28923c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 28936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 28946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 28956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 28966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 28976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 2898bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 28994a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 29004a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 290107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 290207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_format_attribute_implicit_this_format_string) 290307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << IdxExpr->getSourceRange(); 29044a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 29054a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 29064a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 29074a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 29081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 291087c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 29116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 29122b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 2913085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 2914fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2915fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 2916085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 2917085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 29182b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 2919390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 2920390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 2921803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 2922390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 2923fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2924fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 29256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2926bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 29276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 29286217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 2929390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 2930fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 2931fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 29326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 29336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 29346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 29356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 29367a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *FirstArgExpr = Attr.getArg(1); 2937803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 2938ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 2939ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 2940fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 29413c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 29426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 29436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 29446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 29456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 29466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 294787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethodVariadic(D)) { 29486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 29496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 295087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocation(), diag::err_format_attribute_requires_variadic); 29516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 29526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 29536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 29546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 29553c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 29563c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 29572b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 29586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 2959fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 2960fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 29616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 29626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 29636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 29646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 2965fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 29663c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 29676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 29686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 29696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2970599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola FormatAttr *NewAttr = S.mergeFormatAttr(D, Attr.getRange(), Format, 2971599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola Idx.getZExtValue(), 2972599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola FirstArg.getZExtValue()); 2973599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola if (NewAttr) 2974599f1b7100745efacb7ded6c176cb7feade114a5Rafael Espindola D->addAttr(NewAttr); 29756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 29766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 29771b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleTransparentUnionAttr(Sema &S, Decl *D, 29781b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 29796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 29801731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 29816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 29821731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 29836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 29840c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 29850c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 298687c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D); 29870c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 29880c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 29890c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 299087c44604325578b8de07d768391c1c9432404f5aChandler Carruth RD = dyn_cast<RecordDecl>(D); 29910c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 29920c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 2993fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2994883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedUnion; 29956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 29966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 29976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 29985e1cdac63c3d9c9b32fa41fa0b2d242a58a20d49John McCall if (!RD->isCompleteDefinition()) { 2999bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 30000c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 30010c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 30020c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 30030c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 300417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 300517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 30060c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 30070c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 30080c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 30090c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 3010bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 3011581deb3da481053c4993c7600f97acf7768caac5David Blaikie FieldDecl *FirstField = *Field; 30120c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 301390cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 3014bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 301590cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 301690cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 30170c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 30180c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 3019bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 30200c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 30210c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 30220c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 30230c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 30240c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 30250c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 30260c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 30270c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 3028bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 30290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 3030bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 30310c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 30320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 30330c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 3034bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 30350c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 30360c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 3037bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 3038bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 3039bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 30406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3041768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getRange(), S.Context)); 30426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 30436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 30441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnnotateAttr(Sema &S, Decl *D, const AttributeList &Attr) { 30456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 30461731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 30476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 30481731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 30497a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 3050797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 3051bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 30526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 30536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 30546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 3055797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 30566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 30576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 305877f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge 305977f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge // Don't duplicate annotations that are already set. 306077f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge for (specific_attr_iterator<AnnotateAttr> 306177f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge i = D->specific_attr_begin<AnnotateAttr>(), 306277f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge e = D->specific_attr_end<AnnotateAttr>(); i != e; ++i) { 306377f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge if ((*i)->getAnnotation() == SE->getString()) 306477f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge return; 306577f68bb90af93b95045fb994e7cd68137adcc132Julien Lerouge } 3066768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) AnnotateAttr(Attr.getRange(), S.Context, 3067f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 30686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 30696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 30701b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlignedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 30716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 3072545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 30733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 30746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 30756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 3076fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman 3077bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 3078bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 3079bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 30806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3081545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 3082fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman D->addAttr(::new (S.Context) AlignedAttr(Attr.getRange(), S.Context, 3083fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman true, 0, Attr.isDeclspecAttribute())); 30844ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 30854ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 30864ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 3087fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman S.AddAlignedAttr(Attr.getRange(), D, Attr.getArg(0), 3088fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman Attr.isDeclspecAttribute()); 30894ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 30904ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 3091fc685ace387734599c475426b1a8efdb491054b8Aaron Ballmanvoid Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, Expr *E, 3092fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman bool isDeclSpec) { 30930b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne // FIXME: Handle pack-expansions here. 30940b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne if (DiagnoseUnexpandedParameterPack(E)) 30950b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne return; 30960b64ba926752110cff1344a46b36e29396cc4d25Peter Collingbourne 30974ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 30984ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 3099fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, E, 3100fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman isDeclSpec)); 31016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 31026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 3103fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman 3104768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis SourceLocation AttrLoc = AttrRange.getBegin(); 3105cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 310649e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 3107ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor ExprResult ICE 3108ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor = VerifyIntegerConstantExpression(E, &Alignment, 3109ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor diag::err_aligned_attribute_argument_not_int, 3110ab41fe914f63bb470dfa7e400876ada72f57a931Douglas Gregor /*AllowFold*/ false); 3111282e7e66748cc6dd14d6f7f2cb52e5373c531e61Richard Smith if (ICE.isInvalid()) 311249e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 3113396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 31144ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 31154ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 3116396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 3117396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 3118fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman if (isDeclSpec) { 3119fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman // We've already verified it's a power of 2, now let's make sure it's 3120fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman // 8192 or less. 3121fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman if (Alignment.getZExtValue() > 8192) { 3122fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman Diag(AttrLoc, diag::err_attribute_aligned_greater_than_8192) 3123fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman << E->getSourceRange(); 3124fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman return; 3125fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman } 3126fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman } 3127396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 3128fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, true, ICE.take(), 3129fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman isDeclSpec)); 3130cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 3131cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 3132fc685ace387734599c475426b1a8efdb491054b8Aaron Ballmanvoid Sema::AddAlignedAttr(SourceRange AttrRange, Decl *D, TypeSourceInfo *TS, 3133fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman bool isDeclSpec) { 3134cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 3135cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 3136fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman D->addAttr(::new (Context) AlignedAttr(AttrRange, Context, false, TS, 3137fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman isDeclSpec)); 3138cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 31396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 3140fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 3141d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth/// handleModeAttr - This attribute modifies the width of a decl with primitive 3142bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 3143fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 3144bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 3145bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 3146bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 31471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleModeAttr(Sema &S, Decl *D, const AttributeList &Attr) { 3148fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 3149fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 3150fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 3151fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 31521731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 3153fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 31541731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 3155fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 3156fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 3157fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 31580b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 3159fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 3160fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 3161210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 31625f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str = Attr.getParameterName()->getName(); 3163fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 3164fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 3165210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 3166210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 3167fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 3168fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 3169fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 317073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 3171210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 3172fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 317373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 317473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 317573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 317673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 317773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 317873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 317973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 318073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 318173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 318273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 318373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 318473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 318573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 318673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 318773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 318873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 3189fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 3190fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 3191fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 3192fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 3193210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 3194bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getPointerWidth(0); 3195210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 3196bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getCharWidth(); 3197fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 3198fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 3199210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 3200bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor DestWidth = S.Context.getTargetInfo().getPointerWidth(0); 3201fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 3202fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 3203fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 3204fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 3205162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) 3206fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 3207fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 3208fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 3209fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 3210fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 3211768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << "mode" << Attr.getRange(); 3212fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 3213fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 321473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 3215183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 321673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 321773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 32182ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 321973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 322073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 322173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 322273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 322373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 322473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 322573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 322673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 322773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 3228390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 3229390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 3230390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 3231390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 3232f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 3233f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 3234fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 3235fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 3236fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 32373c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 3238fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 3239fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 32403c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 3241fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 3242fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 324373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 324473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 324573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 324673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 3247fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 32480b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 3249fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 32500b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 3251fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 3252fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 325373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 325473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 325573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 325673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 3257fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 32580b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 3259fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 32600b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 3261fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 3262fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 3263fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 32640b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 3265fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 32660b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 3267fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 32680b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 3269fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 3270fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 3271fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 32720b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 3273fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 3274bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getLongWidth() == 64) 3275aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 3276aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 3277aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 3278fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 3279bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (S.Context.getTargetInfo().getLongWidth() == 64) 3280aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 3281aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 3282aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 3283fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 328473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 328573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 328673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 3287f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 3288f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 3289f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 3290f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 3291f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 3292f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 3293f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 3294f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 3295f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 329673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 3297fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 3298fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 329973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 330073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 3301fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 3302fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 3303fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 3304162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 3305ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 3306a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 3307ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 3308fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 3309fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 33100744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 33111b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoDebugAttr(Sema &S, Decl *D, const AttributeList &Attr) { 3312d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 33131731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 3314d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 3315e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 331678d1a10e13a1abfd4830bccf2a97b2993da1ed5cNick Lewycky if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { 331778d1a10e13a1abfd4830bccf2a97b2993da1ed5cNick Lewycky if (!VD->hasGlobalStorage()) 331878d1a10e13a1abfd4830bccf2a97b2993da1ed5cNick Lewycky S.Diag(Attr.getLoc(), 331978d1a10e13a1abfd4830bccf2a97b2993da1ed5cNick Lewycky diag::warn_attribute_requires_functions_or_static_globals) 332078d1a10e13a1abfd4830bccf2a97b2993da1ed5cNick Lewycky << Attr.getName(); 332178d1a10e13a1abfd4830bccf2a97b2993da1ed5cNick Lewycky } else if (!isFunctionOrMethod(D)) { 332278d1a10e13a1abfd4830bccf2a97b2993da1ed5cNick Lewycky S.Diag(Attr.getLoc(), 332378d1a10e13a1abfd4830bccf2a97b2993da1ed5cNick Lewycky diag::warn_attribute_requires_functions_or_static_globals) 332478d1a10e13a1abfd4830bccf2a97b2993da1ed5cNick Lewycky << Attr.getName(); 3325d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 3326d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 3327bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3328768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoDebugAttr(Attr.getRange(), S.Context)); 3329d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 3330d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 33311b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 33325bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 33331731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 33345bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 33351731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 3336bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 333787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 33385bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3339883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 33405bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 33415bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 3342bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3343768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoInlineAttr(Attr.getRange(), S.Context)); 33445bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 33455bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 33461b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInstrumentFunctionAttr(Sema &S, Decl *D, 33471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 33487255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 33491731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 33507255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 33511731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 33527255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 335387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 33547255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3355883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 33567255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 33577255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 33587255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 3359768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getRange(), 3360f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 33617255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 33627255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 33631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstantAttr(Sema &S, Decl *D, const AttributeList &Attr) { 3364ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 3365ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 3366831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 3367ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 3368ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 3369ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3370ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 337187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 3372ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3373883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 3374ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 3375ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3376ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 3377768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getRange(), S.Context)); 3378ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 3379ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; 3380ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3381ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 3382ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 33831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeviceAttr(Sema &S, Decl *D, const AttributeList &Attr) { 3384ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 3385ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 3386ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 3387ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 3388ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 3389ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3390ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 339187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 3392ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3393883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 3394ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 3395ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3396ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 3397768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getRange(), S.Context)); 3398ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 3399ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; 3400ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3401ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 3402ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 34031b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGlobalAttr(Sema &S, Decl *D, const AttributeList &Attr) { 3404ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 3405ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 34061731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 3407ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 3408ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 340987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 3410ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3411883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 3412ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 3413ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3414ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 341587c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *FD = cast<FunctionDecl>(D); 34162c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (!FD->getResultType()->isVoidType()) { 3417723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); 34182c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { 34192c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 34202c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType() 34212c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), 34222c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne "void"); 34232c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } else { 34242c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 34252c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType(); 34262c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 34272c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne return; 34282c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 34292c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne 3430768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getRange(), S.Context)); 3431ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 3432ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; 3433ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3434ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 3435ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 34361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleHostAttr(Sema &S, Decl *D, const AttributeList &Attr) { 3437ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 3438ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 34391731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 3440ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 34411731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 3442ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 344387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 3444ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3445883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 3446ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 3447ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3448ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 3449768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDAHostAttr(Attr.getRange(), S.Context)); 3450ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 3451ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; 3452ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3453ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 3454ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 34551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSharedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 3456ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 3457ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 34581731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 3459ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 34601731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 3461ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 346287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 3463ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3464883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 3465ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 3466ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3467ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 3468768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDASharedAttr(Attr.getRange(), S.Context)); 3469ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 3470ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; 3471ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 3472ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 3473ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 34741b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGNUInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 347526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 34761731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 0)) 347726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 3478bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 347987c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); 3480c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 348126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3482883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 348326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 348426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 3485bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 34860130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 3487cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 3488c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 3489c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 3490bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3491768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) GNUInlineAttr(Attr.getRange(), S.Context)); 349226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 349326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 34941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCallConvAttr(Sema &S, Decl *D, const AttributeList &Attr) { 349587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 349787c44604325578b8de07d768391c1c9432404f5aChandler Carruth // Diagnostic is emitted elsewhere: here we store the (valid) Attr 3498e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 3499711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 350087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckCallingConvAttr(Attr, CC)) 3501711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3502e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 350387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 350487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 350587c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 3506711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3507711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3508711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 350987c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 35108e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_FastCall: 3511768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) FastCallAttr(Attr.getRange(), S.Context)); 3512e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 35138e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_StdCall: 3514768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) StdCallAttr(Attr.getRange(), S.Context)); 3515e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 35168e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ThisCall: 3517768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) ThisCallAttr(Attr.getRange(), S.Context)); 351804633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 35198e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CDecl: 3520768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CDeclAttr(Attr.getRange(), S.Context)); 3521e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 35228e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Pascal: 3523768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PascalAttr(Attr.getRange(), S.Context)); 352452fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 35258e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Pcs: { 352687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *Arg = Attr.getArg(0); 3527414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 35285cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 352987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3530414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 353187c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3532414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 3533414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3534414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 35355f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3536414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PcsAttr::PCSType PCS; 3537414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") 3538414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS; 3539414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else if (StrRef == "aapcs-vfp") 3540414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS_VFP; 3541414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else { 354287c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_invalid_pcs); 354387c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3544414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 3545414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3546414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 3547768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) PcsAttr(Attr.getRange(), S.Context, PCS)); 3548414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3549e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 3550e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 3551e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 3552e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 3553e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 35541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOpenCLKernelAttr(Sema &S, Decl *D, const AttributeList &Attr){ 355556aeb40b1ca136cfd68fdbaf87f971eaf1c7a4afChandler Carruth assert(!Attr.isInvalid()); 3556768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getRange(), S.Context)); 3557f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne} 3558f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 3559711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { 3560711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 3561711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3562711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3563fac8e43390fad67a5d02c9876e860496fee01868Benjamin Kramer unsigned ReqArgs = attr.getKind() == AttributeList::AT_Pcs ? 1 : 0; 3564fac8e43390fad67a5d02c9876e860496fee01868Benjamin Kramer if (attr.getNumArgs() != ReqArgs || attr.getParameterName()) { 3565fac8e43390fad67a5d02c9876e860496fee01868Benjamin Kramer Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << ReqArgs; 3566711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 3567711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3568ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 356955d3aaf9a537888734762170823daf750ea9036dEli Friedman 3570414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // TODO: diagnose uses of these conventions on the wrong target. Or, better 3571414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // move to TargetAttributesSema one day. 3572711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 35738e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CDecl: CC = CC_C; break; 35748e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_FastCall: CC = CC_X86FastCall; break; 35758e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_StdCall: CC = CC_X86StdCall; break; 35768e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ThisCall: CC = CC_X86ThisCall; break; 35778e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Pascal: CC = CC_X86Pascal; break; 35788e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Pcs: { 3579414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Expr *Arg = attr.getArg(0); 3580414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 35815cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 3582414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 3583414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 3584414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov attr.setInvalid(); 3585414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return true; 3586414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3587414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 35885f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 3589414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") { 3590414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS; 3591414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 3592414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } else if (StrRef == "aapcs-vfp") { 3593414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS_VFP; 3594414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 3595414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 3596fac8e43390fad67a5d02c9876e860496fee01868Benjamin Kramer 3597fac8e43390fad67a5d02c9876e860496fee01868Benjamin Kramer attr.setInvalid(); 3598fac8e43390fad67a5d02c9876e860496fee01868Benjamin Kramer Diag(attr.getLoc(), diag::err_invalid_pcs); 3599fac8e43390fad67a5d02c9876e860496fee01868Benjamin Kramer return true; 3600414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 36017530c034c0c71a64c5a9173206d9742ae847af8bDavid Blaikie default: llvm_unreachable("unexpected attribute kind"); 3602711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3603711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3604711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3605711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 3606711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 36071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleRegparmAttr(Sema &S, Decl *D, const AttributeList &Attr) { 360887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3609711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3610711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned numParams; 361187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckRegparmAttr(Attr, numParams)) 3612711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 3613711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 361487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 361587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 361687c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 3617ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 3618ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 361955d3aaf9a537888734762170823daf750ea9036dEli Friedman 3620768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) RegparmAttr(Attr.getRange(), S.Context, numParams)); 3621711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 3622711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 3623711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Checks a regparm attribute, returning true if it is ill-formed and 3624711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// otherwise setting numParams to the appropriate value. 362587c44604325578b8de07d768391c1c9432404f5aChandler Carruthbool Sema::CheckRegparmAttr(const AttributeList &Attr, unsigned &numParams) { 362687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.isInvalid()) 3627711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3628711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 362987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 1) { 363087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 363187c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3632711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 3633711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 3634711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 363587c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *NumParamsExpr = Attr.getArg(0); 363655d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 3637ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 3638711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { 363987c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 364055d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 364187c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3642711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 364355d3aaf9a537888734762170823daf750ea9036dEli Friedman } 364455d3aaf9a537888734762170823daf750ea9036dEli Friedman 3645bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (Context.getTargetInfo().getRegParmMax() == 0) { 364687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 364755d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 364887c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3649711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 365055d3aaf9a537888734762170823daf750ea9036dEli Friedman } 365155d3aaf9a537888734762170823daf750ea9036dEli Friedman 3652711c52bb20d0c69063b52a99826fb7d2835501f1John McCall numParams = NumParams.getZExtValue(); 3653bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor if (numParams > Context.getTargetInfo().getRegParmMax()) { 365487c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 3655bcfd1f55bfbb3e5944cd5e03d07b343e280838c4Douglas Gregor << Context.getTargetInfo().getRegParmMax() << NumParamsExpr->getSourceRange(); 365687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 3657711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 365855d3aaf9a537888734762170823daf750ea9036dEli Friedman } 365955d3aaf9a537888734762170823daf750ea9036dEli Friedman 3660711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 3661ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 3662ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 36631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleLaunchBoundsAttr(Sema &S, Decl *D, const AttributeList &Attr){ 36647b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (S.LangOpts.CUDA) { 36657b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne // check the attribute arguments. 36667b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { 3667bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall // FIXME: 0 is not okay. 3668bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 36697b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 36707b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 36717b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 367287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 36737b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3674883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 36757b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 36767b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 36777b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 36787b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MaxThreadsExpr = Attr.getArg(0); 36797b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MaxThreads(32); 36807b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MaxThreadsExpr->isTypeDependent() || 36817b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreadsExpr->isValueDependent() || 36827b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { 36837b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 36847b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); 36857b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 36867b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 36877b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 36887b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MinBlocks(32); 36897b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() > 1) { 36907b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MinBlocksExpr = Attr.getArg(1); 36917b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MinBlocksExpr->isTypeDependent() || 36927b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocksExpr->isValueDependent() || 36937b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { 36947b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 36957b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); 36967b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 36977b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 36987b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 36997b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 3700768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getRange(), S.Context, 37017b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreads.getZExtValue(), 37027b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocks.getZExtValue())); 37037b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } else { 37047b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; 37057b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 37067b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne} 37077b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 37080744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 3709b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 3710b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 3711b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3712c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { 37136c73a2975ba9112787380abd878876336957b3f6Douglas Gregor return type->isDependentType() || 37146c73a2975ba9112787380abd878876336957b3f6Douglas Gregor type->isObjCObjectPointerType() || 37156c73a2975ba9112787380abd878876336957b3f6Douglas Gregor S.Context.isObjCNSObjectType(type); 3716c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3717c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { 37186c73a2975ba9112787380abd878876336957b3f6Douglas Gregor return type->isDependentType() || 37196c73a2975ba9112787380abd878876336957b3f6Douglas Gregor type->isPointerType() || 37206c73a2975ba9112787380abd878876336957b3f6Douglas Gregor isValidSubjectOfNSAttribute(S, type); 3721c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3722c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 37231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 372487c44604325578b8de07d768391c1c9432404f5aChandler Carruth ParmVarDecl *param = dyn_cast<ParmVarDecl>(D); 3725c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!param) { 372687c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3727768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << ExpectedParameter; 3728c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3729c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3730c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3731c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK, cf; 37328e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (Attr.getKind() == AttributeList::AT_NSConsumed) { 3733c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, param->getType()); 3734c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 3735c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } else { 3736c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, param->getType()); 3737c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 3738c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3739c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3740c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 374187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) 3742768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << cf; 3743c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3744c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3745c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3746c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (cf) 3747768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis param->addAttr(::new (S.Context) CFConsumedAttr(Attr.getRange(), S.Context)); 3748c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall else 3749768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis param->addAttr(::new (S.Context) NSConsumedAttr(Attr.getRange(), S.Context)); 3750c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3751c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 37521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumesSelfAttr(Sema &S, Decl *D, 37531b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 375487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 375587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3756768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << ExpectedMethod; 3757c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 3758c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3759c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3760768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSConsumesSelfAttr(Attr.getRange(), S.Context)); 3761c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 3762c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 37631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSReturnsRetainedAttr(Sema &S, Decl *D, 37641b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 3765b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3766c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall QualType returnType; 3767bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 376887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 3769c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = MD->getResultType(); 377087c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) 3771831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian returnType = PD->getType(); 37724e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie else if (S.getLangOpts().ObjCAutoRefCount && hasDeclarator(D) && 37738e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt (Attr.getKind() == AttributeList::AT_NSReturnsRetained)) 3774f85e193739c953358c865005855253af4f68a497John McCall return; // ignore: was handled as a type attribute 377587c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 3776c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = FD->getResultType(); 37775dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 377887c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 3779768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() 3780883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedFunctionOrMethod; 3781b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3782b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 3783bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 3784c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK; 3785c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool cf; 378687c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 37877530c034c0c71a64c5a9173206d9742ae847af8bDavid Blaikie default: llvm_unreachable("invalid ownership attribute"); 37888e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsAutoreleased: 37898e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsRetained: 37908e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsNotRetained: 3791c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, returnType); 3792c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 3793c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 3794c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 37958e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CFReturnsRetained: 37968e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CFReturnsNotRetained: 3797c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, returnType); 3798c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 3799c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 3800c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 3801c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 3802c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 380387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 3804768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis << Attr.getRange() << Attr.getName() << isa<ObjCMethodDecl>(D) << cf; 3805bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 38065dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 3807bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 380887c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 3809b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 3810b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("invalid ownership attribute"); 38118e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsAutoreleased: 3812768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(Attr.getRange(), 3813c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Context)); 3814c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 38158e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CFReturnsNotRetained: 3816768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getRange(), 3817f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 381831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 38198e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsNotRetained: 3820768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getRange(), 3821f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 382231c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 38238e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CFReturnsRetained: 3824768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getRange(), 3825f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 3826b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 38278e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsRetained: 3828768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getRange(), 3829f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 3830b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 3831b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 3832b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 3833b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 3834dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCallstatic void handleObjCReturnsInnerPointerAttr(Sema &S, Decl *D, 3835dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall const AttributeList &attr) { 3836dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall SourceLocation loc = attr.getLoc(); 3837dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3838dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(D); 3839dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 384094d55d7ecdd693788a8f3910a0da1b5ecdaa8a86Fariborz Jahanian if (!method) { 38410e78afbb15c6f51932e562e620f714c37cf914e6Fariborz Jahanian S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3842f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << SourceRange(loc, loc) << attr.getName() << ExpectedMethod; 3843dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall return; 3844dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall } 3845dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3846dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall // Check that the method returns a normal pointer. 3847dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall QualType resultType = method->getResultType(); 3848f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian 3849f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian if (!resultType->isReferenceType() && 3850f2e5945e3a989e9d981c03c4a9cbbfb6232c8c07Fariborz Jahanian (!resultType->isPointerType() || resultType->isObjCRetainableType())) { 3851dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall S.Diag(method->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 3852dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << SourceRange(loc) 3853dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall << attr.getName() << /*method*/ 1 << /*non-retainable pointer*/ 2; 3854dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3855dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall // Drop the attribute. 3856dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall return; 3857dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall } 3858dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 3859dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall method->addAttr( 3860768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis ::new (S.Context) ObjCReturnsInnerPointerAttr(attr.getRange(), S.Context)); 3861dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall} 3862dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 38638dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall/// Handle cf_audited_transfer and cf_unknown_transfer. 38648dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCallstatic void handleCFTransferAttr(Sema &S, Decl *D, const AttributeList &A) { 38658dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (!isa<FunctionDecl>(D)) { 38668dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3867f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << A.getRange() << A.getName() << ExpectedFunction; 38688dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall return; 38698dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 38708dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 38718e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt bool IsAudited = (A.getKind() == AttributeList::AT_CFAuditedTransfer); 38728dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 38738dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall // Check whether there's a conflicting attribute already present. 38748dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Attr *Existing; 38758dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (IsAudited) { 38768dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Existing = D->getAttr<CFUnknownTransferAttr>(); 38778dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } else { 38788dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall Existing = D->getAttr<CFAuditedTransferAttr>(); 38798dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 38808dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (Existing) { 38818dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall S.Diag(D->getLocStart(), diag::err_attributes_are_not_compatible) 38828dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << A.getName() 38838dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << (IsAudited ? "cf_unknown_transfer" : "cf_audited_transfer") 38848dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall << A.getRange() << Existing->getRange(); 38858dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall return; 38868dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 38878dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 38888dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall // All clear; add the attribute. 38898dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall if (IsAudited) { 38908dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall D->addAttr( 38918dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall ::new (S.Context) CFAuditedTransferAttr(A.getRange(), S.Context)); 38928dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } else { 38938dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall D->addAttr( 38948dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall ::new (S.Context) CFUnknownTransferAttr(A.getRange(), S.Context)); 38958dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall } 38968dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall} 38978dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 3898fe98da0fa352462c02db037360788748f95466f7John McCallstatic void handleNSBridgedAttr(Sema &S, Scope *Sc, Decl *D, 3899fe98da0fa352462c02db037360788748f95466f7John McCall const AttributeList &Attr) { 3900fe98da0fa352462c02db037360788748f95466f7John McCall RecordDecl *RD = dyn_cast<RecordDecl>(D); 3901fe98da0fa352462c02db037360788748f95466f7John McCall if (!RD || RD->isUnion()) { 3902fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3903f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << Attr.getRange() << Attr.getName() << ExpectedStruct; 3904fe98da0fa352462c02db037360788748f95466f7John McCall } 3905fe98da0fa352462c02db037360788748f95466f7John McCall 3906fe98da0fa352462c02db037360788748f95466f7John McCall IdentifierInfo *ParmName = Attr.getParameterName(); 3907fe98da0fa352462c02db037360788748f95466f7John McCall 3908fe98da0fa352462c02db037360788748f95466f7John McCall // In Objective-C, verify that the type names an Objective-C type. 3909fe98da0fa352462c02db037360788748f95466f7John McCall // We don't want to check this outside of ObjC because people sometimes 3910fe98da0fa352462c02db037360788748f95466f7John McCall // do crazy C declarations of Objective-C types. 39114e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (ParmName && S.getLangOpts().ObjC1) { 3912fe98da0fa352462c02db037360788748f95466f7John McCall // Check for an existing type with this name. 3913fe98da0fa352462c02db037360788748f95466f7John McCall LookupResult R(S, DeclarationName(ParmName), Attr.getParameterLoc(), 3914fe98da0fa352462c02db037360788748f95466f7John McCall Sema::LookupOrdinaryName); 3915fe98da0fa352462c02db037360788748f95466f7John McCall if (S.LookupName(R, Sc)) { 3916fe98da0fa352462c02db037360788748f95466f7John McCall NamedDecl *Target = R.getFoundDecl(); 3917fe98da0fa352462c02db037360788748f95466f7John McCall if (Target && !isa<ObjCInterfaceDecl>(Target)) { 3918fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(D->getLocStart(), diag::err_ns_bridged_not_interface); 3919fe98da0fa352462c02db037360788748f95466f7John McCall S.Diag(Target->getLocStart(), diag::note_declared_at); 3920fe98da0fa352462c02db037360788748f95466f7John McCall } 3921fe98da0fa352462c02db037360788748f95466f7John McCall } 3922fe98da0fa352462c02db037360788748f95466f7John McCall } 3923fe98da0fa352462c02db037360788748f95466f7John McCall 3924fe98da0fa352462c02db037360788748f95466f7John McCall D->addAttr(::new (S.Context) NSBridgedAttr(Attr.getRange(), S.Context, 3925fe98da0fa352462c02db037360788748f95466f7John McCall ParmName)); 3926fe98da0fa352462c02db037360788748f95466f7John McCall} 3927fe98da0fa352462c02db037360788748f95466f7John McCall 39281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCOwnershipAttr(Sema &S, Decl *D, 39291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 393087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 3931f85e193739c953358c865005855253af4f68a497John McCall 393287c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3933f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << Attr.getRange() << Attr.getName() << ExpectedVariable; 3934f85e193739c953358c865005855253af4f68a497John McCall} 3935f85e193739c953358c865005855253af4f68a497John McCall 39361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCPreciseLifetimeAttr(Sema &S, Decl *D, 39371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 393887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FieldDecl>(D)) { 393987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 3940f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor << Attr.getRange() << Attr.getName() << ExpectedVariable; 3941f85e193739c953358c865005855253af4f68a497John McCall return; 3942f85e193739c953358c865005855253af4f68a497John McCall } 3943f85e193739c953358c865005855253af4f68a497John McCall 394487c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *vd = cast<ValueDecl>(D); 3945f85e193739c953358c865005855253af4f68a497John McCall QualType type = vd->getType(); 3946f85e193739c953358c865005855253af4f68a497John McCall 3947f85e193739c953358c865005855253af4f68a497John McCall if (!type->isDependentType() && 3948f85e193739c953358c865005855253af4f68a497John McCall !type->isObjCLifetimeType()) { 394987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_objc_precise_lifetime_bad_type) 3950f85e193739c953358c865005855253af4f68a497John McCall << type; 3951f85e193739c953358c865005855253af4f68a497John McCall return; 3952f85e193739c953358c865005855253af4f68a497John McCall } 3953f85e193739c953358c865005855253af4f68a497John McCall 3954f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime = type.getObjCLifetime(); 3955f85e193739c953358c865005855253af4f68a497John McCall 3956f85e193739c953358c865005855253af4f68a497John McCall // If we have no lifetime yet, check the lifetime we're presumably 3957f85e193739c953358c865005855253af4f68a497John McCall // going to infer. 3958f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_None && !type->isDependentType()) 3959f85e193739c953358c865005855253af4f68a497John McCall lifetime = type->getObjCARCImplicitLifetime(); 3960f85e193739c953358c865005855253af4f68a497John McCall 3961f85e193739c953358c865005855253af4f68a497John McCall switch (lifetime) { 3962f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_None: 3963f85e193739c953358c865005855253af4f68a497John McCall assert(type->isDependentType() && 3964f85e193739c953358c865005855253af4f68a497John McCall "didn't infer lifetime for non-dependent type?"); 3965f85e193739c953358c865005855253af4f68a497John McCall break; 3966f85e193739c953358c865005855253af4f68a497John McCall 3967f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Weak: // meaningful 3968f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Strong: // meaningful 3969f85e193739c953358c865005855253af4f68a497John McCall break; 3970f85e193739c953358c865005855253af4f68a497John McCall 3971f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_ExplicitNone: 3972f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Autoreleasing: 397387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_objc_precise_lifetime_meaningless) 3974f85e193739c953358c865005855253af4f68a497John McCall << (lifetime == Qualifiers::OCL_Autoreleasing); 3975f85e193739c953358c865005855253af4f68a497John McCall break; 3976f85e193739c953358c865005855253af4f68a497John McCall } 3977f85e193739c953358c865005855253af4f68a497John McCall 397887c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) 3979768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis ObjCPreciseLifetimeAttr(Attr.getRange(), S.Context)); 3980f85e193739c953358c865005855253af4f68a497John McCall} 3981f85e193739c953358c865005855253af4f68a497John McCall 398211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 398311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet// Microsoft specific attribute handlers. 398411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 398511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 39861b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUuidAttr(Sema &S, Decl *D, const AttributeList &Attr) { 398762ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (S.LangOpts.MicrosoftExt || S.LangOpts.Borland) { 398811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet // check the attribute arguments. 39891731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth if (!checkAttributeNumArgs(S, Attr, 1)) 399011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet return; 39911731e202b268bfcd883710e2b10fe44a869bbcb7Chandler Carruth 399211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Expr *Arg = Attr.getArg(0); 399311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 39945cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor if (!Str || !Str->isAscii()) { 3995d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3996d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet << "uuid" << 1; 3997d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 3998d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 3999d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 40005f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef StrRef = Str->getString(); 4001d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 4002d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && 4003d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet StrRef.back() == '}'; 4004f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor 4005d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // Validate GUID length. 4006d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (IsCurly && StrRef.size() != 38) { 4007d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 4008d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 4009d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 4010d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (!IsCurly && StrRef.size() != 36) { 4011d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 4012d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 4013d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 4014d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 4015f6b8b585596f6cf7924fecc5b7a741d4b45809dcDouglas Gregor // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or 4016d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" 40175f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef::iterator I = StrRef.begin(); 4018f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson if (IsCurly) // Skip the optional '{' 4019f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson ++I; 4020f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson 4021f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson for (int i = 0; i < 36; ++i) { 4022d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (i == 8 || i == 13 || i == 18 || i == 23) { 4023d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (*I != '-') { 4024d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 4025d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 4026d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 4027d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else if (!isxdigit(*I)) { 4028d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 4029d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 4030d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 4031d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet I++; 4032d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 403311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 4034768d6cae40ad4ff3aed5483269d068ff7a45e229Argyrios Kyrtzidis D->addAttr(::new (S.Context) UuidAttr(Attr.getRange(), S.Context, 403511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Str->getString())); 4036d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else 403711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; 4038f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 4039f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 4040c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCallstatic void handleInheritanceAttr(Sema &S, Decl *D, const AttributeList &Attr) { 4041c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall if (S.LangOpts.MicrosoftExt) { 4042c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall AttributeList::Kind Kind = Attr.getKind(); 40438e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (Kind == AttributeList::AT_SingleInheritance) 4044c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall D->addAttr( 4045c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall ::new (S.Context) SingleInheritanceAttr(Attr.getRange(), S.Context)); 40468e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt else if (Kind == AttributeList::AT_MultipleInheritance) 4047c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall D->addAttr( 4048c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall ::new (S.Context) MultipleInheritanceAttr(Attr.getRange(), S.Context)); 40498e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt else if (Kind == AttributeList::AT_VirtualInheritance) 4050c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall D->addAttr( 4051c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall ::new (S.Context) VirtualInheritanceAttr(Attr.getRange(), S.Context)); 4052c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall } else 4053c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 4054c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall} 4055c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall 4056c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCallstatic void handlePortabilityAttr(Sema &S, Decl *D, const AttributeList &Attr) { 4057c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall if (S.LangOpts.MicrosoftExt) { 4058c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall AttributeList::Kind Kind = Attr.getKind(); 40598e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (Kind == AttributeList::AT_Ptr32) 4060c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall D->addAttr( 4061c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall ::new (S.Context) Ptr32Attr(Attr.getRange(), S.Context)); 40628e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt else if (Kind == AttributeList::AT_Ptr64) 4063c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall D->addAttr( 4064c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall ::new (S.Context) Ptr64Attr(Attr.getRange(), S.Context)); 40658e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt else if (Kind == AttributeList::AT_Win64) 4066c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall D->addAttr( 4067c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall ::new (S.Context) Win64Attr(Attr.getRange(), S.Context)); 4068c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall } else 4069c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 4070c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall} 4071c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall 4072adc6cbf5b502f1b58078455ab4fca66c7daac239Michael J. Spencerstatic void handleForceInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 4073adc6cbf5b502f1b58078455ab4fca66c7daac239Michael J. Spencer if (S.LangOpts.MicrosoftExt) 4074adc6cbf5b502f1b58078455ab4fca66c7daac239Michael J. Spencer D->addAttr(::new (S.Context) ForceInlineAttr(Attr.getRange(), S.Context)); 4075adc6cbf5b502f1b58078455ab4fca66c7daac239Michael J. Spencer else 4076adc6cbf5b502f1b58078455ab4fca66c7daac239Michael J. Spencer S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 4077adc6cbf5b502f1b58078455ab4fca66c7daac239Michael J. Spencer} 4078adc6cbf5b502f1b58078455ab4fca66c7daac239Michael J. Spencer 4079b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 40800744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 40810744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 40820744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 40831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessNonInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 40841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 408560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne switch (Attr.getKind()) { 40868e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CUDADevice: handleDeviceAttr (S, D, Attr); break; 40878e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CUDAHost: handleHostAttr (S, D, Attr); break; 40888e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Overloadable:handleOverloadableAttr(S, D, Attr); break; 408960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne default: 409060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 409160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne } 409260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 4093e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 40941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 40951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 4096803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 40978e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_IBAction: handleIBAction(S, D, Attr); break; 40988e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_IBOutlet: handleIBOutlet(S, D, Attr); break; 40998e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_IBOutletCollection: 41001b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleIBOutletCollection(S, D, Attr); break; 41018e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_AddressSpace: 41028e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_OpenCLImageAccess: 41038e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCGC: 41048e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_VectorSize: 41058e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NeonVectorType: 41068e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NeonPolyVectorType: 4107bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 4108bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 4109803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 41108e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CUDADevice: 41118e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CUDAHost: 41128e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Overloadable: 411360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // Ignore, this is a non-inheritable attribute, handled 411460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // by ProcessNonInheritableDeclAttr. 411560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 41168e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Alias: handleAliasAttr (S, D, Attr); break; 41178e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Aligned: handleAlignedAttr (S, D, Attr); break; 41188e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_AllocSize: handleAllocSizeAttr (S, D, Attr); break; 41198e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_AlwaysInline: 41201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAlwaysInlineAttr (S, D, Attr); break; 41218e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_AnalyzerNoReturn: 41221b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAnalyzerNoReturnAttr (S, D, Attr); break; 41235e2d5dec7736f6f9292d4212dec67295909f1328Hans Wennborg case AttributeList::AT_TLSModel: handleTLSModelAttr (S, D, Attr); break; 41248e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Annotate: handleAnnotateAttr (S, D, Attr); break; 41258e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Availability:handleAvailabilityAttr(S, D, Attr); break; 41268e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CarriesDependency: 41271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleDependencyAttr (S, D, Attr); break; 41288e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Common: handleCommonAttr (S, D, Attr); break; 41298e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CUDAConstant:handleConstantAttr (S, D, Attr); break; 41308e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Constructor: handleConstructorAttr (S, D, Attr); break; 41318e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Deprecated: 4132bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramer handleAttrWithMessage<DeprecatedAttr>(S, D, Attr, "deprecated"); 4133bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramer break; 41348e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Destructor: handleDestructorAttr (S, D, Attr); break; 41358e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ExtVectorType: 41361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleExtVectorTypeAttr(S, scope, D, Attr); 41373068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 41388e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Format: handleFormatAttr (S, D, Attr); break; 41398e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_FormatArg: handleFormatArgAttr (S, D, Attr); break; 41408e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CUDAGlobal: handleGlobalAttr (S, D, Attr); break; 41418e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_GNUInline: handleGNUInlineAttr (S, D, Attr); break; 41428e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CUDALaunchBounds: 41431b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleLaunchBoundsAttr(S, D, Attr); 41447b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne break; 41458e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Mode: handleModeAttr (S, D, Attr); break; 41468e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Malloc: handleMallocAttr (S, D, Attr); break; 41478e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_MayAlias: handleMayAliasAttr (S, D, Attr); break; 41488e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoCommon: handleNoCommonAttr (S, D, Attr); break; 41498e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NonNull: handleNonNullAttr (S, D, Attr); break; 4150dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 4151dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 4152dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 41531b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOwnershipAttr (S, D, Attr); break; 41548e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Cold: handleColdAttr (S, D, Attr); break; 41558e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Hot: handleHotAttr (S, D, Attr); break; 41568e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Naked: handleNakedAttr (S, D, Attr); break; 41578e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoReturn: handleNoReturnAttr (S, D, Attr); break; 41588e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoThrow: handleNothrowAttr (S, D, Attr); break; 41598e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CUDAShared: handleSharedAttr (S, D, Attr); break; 41608e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_VecReturn: handleVecReturnAttr (S, D, Attr); break; 41618e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt 41628e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCOwnership: 41631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCOwnershipAttr(S, D, Attr); break; 41648e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCPreciseLifetime: 41651b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCPreciseLifetimeAttr(S, D, Attr); break; 4166f85e193739c953358c865005855253af4f68a497John McCall 41678e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCReturnsInnerPointer: 4168dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall handleObjCReturnsInnerPointerAttr(S, D, Attr); break; 4169dc7c5ad7a15914b7ae24f31f18a20ad2f8ecd0bcJohn McCall 41708e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSBridged: 4171fe98da0fa352462c02db037360788748f95466f7John McCall handleNSBridgedAttr(S, scope, D, Attr); break; 4172fe98da0fa352462c02db037360788748f95466f7John McCall 41738e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CFAuditedTransfer: 41748e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CFUnknownTransfer: 41758dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall handleCFTransferAttr(S, D, Attr); break; 41768dfac0baaf0f81d3945bcb306480e358ba8d1f08John McCall 4177b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 41788e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CFConsumed: 41798e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSConsumed: handleNSConsumedAttr (S, D, Attr); break; 41808e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSConsumesSelf: 41811b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSConsumesSelfAttr(S, D, Attr); break; 4182c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 41838e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsAutoreleased: 41848e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsNotRetained: 41858e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CFReturnsNotRetained: 41868e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NSReturnsRetained: 41878e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CFReturnsRetained: 41881b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSReturnsRetainedAttr(S, D, Attr); break; 4189b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 41900df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner case AttributeList::AT_WorkGroupSizeHint: 41918e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ReqdWorkGroupSize: 41920df579ec000ffe52e0cddf1e7ee5e50a55256835Tanya Lattner handleWorkGroupSize(S, D, Attr); break; 41936f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 41948e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_InitPriority: 41951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleInitPriorityAttr(S, D, Attr); break; 4196521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 41978e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Packed: handlePackedAttr (S, D, Attr); break; 41988e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Section: handleSectionAttr (S, D, Attr); break; 41998e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Unavailable: 4200bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramer handleAttrWithMessage<UnavailableAttr>(S, D, Attr, "unavailable"); 4201bc3260d20bd075566fa87a4182e0760126f79c1eBenjamin Kramer break; 42028e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ArcWeakrefUnavailable: 4203742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian handleArcWeakrefUnavailableAttr (S, D, Attr); 4204742352a3984aeef9ecf911be23e673e97b34595fFariborz Jahanian break; 42058e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCRootClass: 4206b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard handleObjCRootClassAttr(S, D, Attr); 4207b2f6820773aabff3c5c9e0dbb1cbbbda0d80c41fPatrick Beard break; 42088e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCRequiresPropertyDefs: 420971207fc0470e1eee40a2951cd5cc3ff47725b755Ted Kremenek handleObjCRequiresPropertyDefsAttr (S, D, Attr); 4210e23dcf3524fe01208cc79e707412f0a5dd8eed7bFariborz Jahanian break; 42118e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Unused: handleUnusedAttr (S, D, Attr); break; 42128e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ReturnsTwice: 4213f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola handleReturnsTwiceAttr(S, D, Attr); 4214f87cced71a955dca5731e7b28bc182e4824c0355Rafael Espindola break; 42158e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Used: handleUsedAttr (S, D, Attr); break; 42168e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Visibility: handleVisibilityAttr (S, D, Attr); break; 42178e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_WarnUnusedResult: handleWarnUnusedResult(S, D, Attr); 4218026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 42198e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Weak: handleWeakAttr (S, D, Attr); break; 42208e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_WeakRef: handleWeakRefAttr (S, D, Attr); break; 42218e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_WeakImport: handleWeakImportAttr (S, D, Attr); break; 42228e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_TransparentUnion: 42231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleTransparentUnionAttr(S, D, Attr); 4224803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 42258e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCException: 42261b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCExceptionAttr(S, D, Attr); 42270db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 42288e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCMethodFamily: 42291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCMethodFamilyAttr(S, D, Attr); 4230d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall break; 42318e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ObjCNSObject:handleObjCNSObject (S, D, Attr); break; 42328e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Blocks: handleBlocksAttr (S, D, Attr); break; 42338e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Sentinel: handleSentinelAttr (S, D, Attr); break; 42348e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Const: handleConstAttr (S, D, Attr); break; 42358e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Pure: handlePureAttr (S, D, Attr); break; 42368e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Cleanup: handleCleanupAttr (S, D, Attr); break; 42378e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoDebug: handleNoDebugAttr (S, D, Attr); break; 42388e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoInline: handleNoInlineAttr (S, D, Attr); break; 42398e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Regparm: handleRegparmAttr (S, D, Attr); break; 4240bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 424105f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 424205f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 42438e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoInstrumentFunction: // Interacts with -pg. 42441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNoInstrumentFunctionAttr(S, D, Attr); 42457255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 42468e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_StdCall: 42478e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_CDecl: 42488e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_FastCall: 42498e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ThisCall: 42508e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Pascal: 42518e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Pcs: 42521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleCallConvAttr(S, D, Attr); 425304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 42548e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_OpenCLKernel: 42551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOpenCLKernelAttr(S, D, Attr); 4256f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne break; 4257c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall 4258c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall // Microsoft attributes: 42598e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_MsStruct: 4260c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall handleMsStructAttr(S, D, Attr); 4261c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall break; 42628e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Uuid: 42631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleUuidAttr(S, D, Attr); 426411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet break; 42658e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_SingleInheritance: 42668e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_MultipleInheritance: 42678e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_VirtualInheritance: 4268c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall handleInheritanceAttr(S, D, Attr); 4269c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall break; 42708e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Win64: 42718e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Ptr32: 42728e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Ptr64: 4273c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall handlePortabilityAttr(S, D, Attr); 4274c052dbb2d8fe0e23e90d81236aab0f864f712b45John McCall break; 42758e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ForceInline: 4276adc6cbf5b502f1b58078455ab4fca66c7daac239Michael J. Spencer handleForceInlineAttr(S, D, Attr); 4277adc6cbf5b502f1b58078455ab4fca66c7daac239Michael J. Spencer break; 4278fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 4279fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski // Thread safety attributes: 42808e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_GuardedVar: 4281fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleGuardedVarAttr(S, D, Attr); 4282fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 42838e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_PtGuardedVar: 4284dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handlePtGuardedVarAttr(S, D, Attr); 4285fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 42868e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ScopedLockable: 4287dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handleScopedLockableAttr(S, D, Attr); 4288fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 42898e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoAddressSafetyAnalysis: 429071efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany handleNoAddressSafetyAttr(S, D, Attr); 429171efba0bbafaefab14419fbd284efff5f7acade7Kostya Serebryany break; 42928e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_NoThreadSafetyAnalysis: 4293fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleNoThreadSafetyAttr(S, D, Attr); 4294fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 42958e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_Lockable: 4296fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski handleLockableAttr(S, D, Attr); 4297fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski break; 42988e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_GuardedBy: 4299db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleGuardedByAttr(S, D, Attr); 4300db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43018e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_PtGuardedBy: 4302dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handlePtGuardedByAttr(S, D, Attr); 4303db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43048e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ExclusiveLockFunction: 4305dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handleExclusiveLockFunctionAttr(S, D, Attr); 4306db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43078e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ExclusiveLocksRequired: 4308dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handleExclusiveLocksRequiredAttr(S, D, Attr); 4309db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43108e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_ExclusiveTrylockFunction: 4311dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handleExclusiveTrylockFunctionAttr(S, D, Attr); 4312db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43138e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_LockReturned: 4314db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLockReturnedAttr(S, D, Attr); 4315db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43168e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_LocksExcluded: 4317db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleLocksExcludedAttr(S, D, Attr); 4318db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43198e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_SharedLockFunction: 4320dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handleSharedLockFunctionAttr(S, D, Attr); 4321db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43228e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_SharedLocksRequired: 4323dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handleSharedLocksRequiredAttr(S, D, Attr); 4324db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43258e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_SharedTrylockFunction: 4326dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handleSharedTrylockFunctionAttr(S, D, Attr); 4327db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43288e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_UnlockFunction: 4329db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski handleUnlockFunAttr(S, D, Attr); 4330db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43318e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_AcquiredBefore: 4332dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handleAcquiredBeforeAttr(S, D, Attr); 4333db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 43348e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt case AttributeList::AT_AcquiredAfter: 4335dc69157f9bfa538e2bf62a01fa46df22ce45ce3cMichael Han handleAcquiredAfterAttr(S, D, Attr); 4336db33e14661c7a118a2d9a777ae69c0ecaa036e1eCaitlin Sadowski break; 4337fdde9e719ad75e656a1475a36b06c2f88f0957ccCaitlin Sadowski 4338803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 433982d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 434082d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 434182d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 4342fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman S.Diag(Attr.getLoc(), Attr.isDeclspecAttribute() ? 4343fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman diag::warn_unhandled_ms_attribute_ignored : 4344fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman diag::warn_unknown_attribute_ignored) << Attr.getName(); 4345803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 4346803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 4347803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 4348803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 434960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 435060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the attribute applies to decls. If the attribute is a type attribute, just 435160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 435260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 43531b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, 43541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr, 435560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 435660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isInvalid()) 435760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 435860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 4359fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman // Type attributes are still treated as declaration attributes by 4360fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman // ParseMicrosoftTypeAttributes and ParseBorlandTypeAttributes. We don't 4361fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman // want to process them, however, because we will simply warn about ignoring 4362fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman // them. So instead, we will bail out early. 4363fc685ace387734599c475426b1a8efdb491054b8Aaron Ballman if (Attr.isMSTypespecAttribute()) 436460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 436560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 436660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (NonInheritable) 43671b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessNonInheritableDeclAttr(S, scope, D, Attr); 436860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 436960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable) 43701b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessInheritableDeclAttr(S, scope, D, Attr); 437160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 437260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 4373803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 4374803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 4375f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christophervoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, 437660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList *AttrList, 437760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 437811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 437998ae834a3e289f84f0765d0d0ca7ff22ccaba458Rafael Espindola ProcessDeclAttribute(*this, S, D, *l, NonInheritable, Inheritable); 43809b79fc9c57dc9d541c2a5737c3e2c24cc68d485dRafael Espindola } 438111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 438211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 438311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 438411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 438560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 438611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 4387dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 438811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 4389803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 4390803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 4391803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 43925f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen// Annotation attributes are the only attributes allowed after an access 43935f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen// specifier. 43945f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggenbool Sema::ProcessAccessDeclAttributeList(AccessSpecDecl *ASDecl, 43955f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen const AttributeList *AttrList) { 43965f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen for (const AttributeList* l = AttrList; l; l = l->getNext()) { 43978e083e71d48f7f4d6ef40c00531c2e14df745486Sean Hunt if (l->getKind() == AttributeList::AT_Annotate) { 43985f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen handleAnnotateAttr(*this, ASDecl, *l); 43995f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen } else { 44005f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen Diag(l->getLoc(), diag::err_only_annotate_after_access_spec); 44015f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen return true; 44025f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen } 44035f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen } 44045f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen 44055f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen return false; 44065f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen} 44075f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen 4408e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// checkUnusedDeclAttributes - Check a list of attributes to see if it 4409e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// contains any decl attributes that we should warn about. 4410e82247a71a1a76e78f3b979b64d5f6412ab40266John McCallstatic void checkUnusedDeclAttributes(Sema &S, const AttributeList *A) { 4411e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall for ( ; A; A = A->getNext()) { 4412e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall // Only warn if the attribute is an unignored, non-type attribute. 4413e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->isUsedAsTypeAttr()) continue; 4414e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->getKind() == AttributeList::IgnoredAttribute) continue; 4415e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 4416e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall if (A->getKind() == AttributeList::UnknownAttribute) { 4417e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall S.Diag(A->getLoc(), diag::warn_unknown_attribute_ignored) 4418e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall << A->getName() << A->getRange(); 4419e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } else { 4420e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall S.Diag(A->getLoc(), diag::warn_attribute_not_on_decl) 4421e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall << A->getName() << A->getRange(); 4422e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } 4423e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall } 4424e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall} 4425e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 4426e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// checkUnusedDeclAttributes - Given a declarator which is not being 4427e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// used to build a declaration, complain about any decl attributes 4428e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall/// which might be lying around on it. 4429e82247a71a1a76e78f3b979b64d5f6412ab40266John McCallvoid Sema::checkUnusedDeclAttributes(Declarator &D) { 4430e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getDeclSpec().getAttributes().getList()); 4431e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getAttributes()); 4432e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall for (unsigned i = 0, e = D.getNumTypeObjects(); i != e; ++i) 4433e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall ::checkUnusedDeclAttributes(*this, D.getTypeObject(i).getAttrs()); 4434e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall} 4435e82247a71a1a76e78f3b979b64d5f6412ab40266John McCall 4436e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 44371dfbd92c83699820bfaa352e83083124e34fc9dcJames Dennett/// \#pragma weak needs a non-definition decl and source may not have one. 4438900693b715b3832a42ae87157332baece94ccdd8Eli FriedmanNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II, 4439900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SourceLocation Loc) { 44407b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 4441e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 4442e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 4443900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FunctionDecl *NewFD; 4444900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Missing call to CheckFunctionDeclaration(). 4445900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Mangling? 4446900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Is the qualifier info correct? 4447900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // FIXME: Is the DeclContext correct? 4448900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewFD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 4449900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Loc, Loc, DeclarationName(II), 4450900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FD->getType(), FD->getTypeSourceInfo(), 4451900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SC_None, SC_None, 4452900693b715b3832a42ae87157332baece94ccdd8Eli Friedman false/*isInlineSpecified*/, 4453900693b715b3832a42ae87157332baece94ccdd8Eli Friedman FD->hasPrototype(), 4454900693b715b3832a42ae87157332baece94ccdd8Eli Friedman false/*isConstexprSpecified*/); 4455900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NewD = NewFD; 4456900693b715b3832a42ae87157332baece94ccdd8Eli Friedman 4457900693b715b3832a42ae87157332baece94ccdd8Eli Friedman if (FD->getQualifier()) 4458c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewFD->setQualifierInfo(FD->getQualifierLoc()); 4459900693b715b3832a42ae87157332baece94ccdd8Eli Friedman 4460900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // Fake up parameter variables; they are declared as if this were 4461900693b715b3832a42ae87157332baece94ccdd8Eli Friedman // a typedef. 4462900693b715b3832a42ae87157332baece94ccdd8Eli Friedman QualType FDTy = FD->getType(); 4463900693b715b3832a42ae87157332baece94ccdd8Eli Friedman if (const FunctionProtoType *FT = FDTy->getAs<FunctionProtoType>()) { 4464900693b715b3832a42ae87157332baece94ccdd8Eli Friedman SmallVector<ParmVarDecl*, 16> Params; 4465900693b715b3832a42ae87157332baece94ccdd8Eli Friedman for (FunctionProtoType::arg_type_iterator AI = FT->arg_type_begin(), 4466900693b715b3832a42ae87157332baece94ccdd8Eli Friedman AE = FT->arg_type_end(); AI != AE; ++AI) { 4467900693b715b3832a42ae87157332baece94ccdd8Eli Friedman ParmVarDecl *Param = BuildParmVarDeclForTypedef(NewFD, Loc, *AI); 4468900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Param->setScopeInfo(0, Params.size()); 4469900693b715b3832a42ae87157332baece94ccdd8Eli Friedman Params.push_back(Param); 4470900693b715b3832a42ae87157332baece94ccdd8Eli Friedman } 44714278c654b645402554eb52a48e9c7097c9f1233aDavid Blaikie NewFD->setParams(Params); 4472b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 4473e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 4474e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 4475ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara VD->getInnerLocStart(), VD->getLocation(), II, 4476a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 447716573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 447816573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 4479b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 4480b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 4481c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewVD->setQualifierInfo(VD->getQualifierLoc()); 4482b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 4483e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 4484e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 4485e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 4486e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 44871dfbd92c83699820bfaa352e83083124e34fc9dcJames Dennett/// DeclApplyPragmaWeak - A declaration (maybe definition) needs \#pragma weak 4488e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 44897b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 4490c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 4491c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 4492c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 4493c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 4494900693b715b3832a42ae87157332baece94ccdd8Eli Friedman NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias(), W.getLocation()); 4495cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 4496cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 4497cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 4498c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 4499c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 4500c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 4501c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 4502c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 4503c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 4504c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 4505c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 4506cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 4507e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 4508e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 4509e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 45100744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 45110744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 45120744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 451360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournevoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, 451460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 4515d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // It's valid to "forward-declare" #pragma weak, in which case we 4516d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // have to do this. 451731e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (Inheritable) { 451831e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor LoadExternalWeakUndeclaredIdentifiers(); 451931e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (!WeakUndeclaredIdentifiers.empty()) { 452031e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 452131e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (IdentifierInfo *Id = ND->getIdentifier()) { 452231e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I 452331e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor = WeakUndeclaredIdentifiers.find(Id); 452431e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { 452531e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor WeakInfo W = I->second; 452631e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor DeclApplyPragmaWeak(S, ND, W); 452731e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor WeakUndeclaredIdentifiers[Id] = W; 452831e37b2d7b4815fdea6a35d49f33005562f0d494Douglas Gregor } 4529d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall } 4530e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 4531e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 4532e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 4533e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 45340744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 45357f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) 453660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 4537bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 45380744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 45390744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 45400744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 45410744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 45420744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 45430744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 454460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 4545bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 45460744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 45470744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 454860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 45490744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 455054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 4551f85e193739c953358c865005855253af4f68a497John McCall/// Is the given declaration allowed to use a forbidden type? 4552f85e193739c953358c865005855253af4f68a497John McCallstatic bool isForbiddenTypeAllowed(Sema &S, Decl *decl) { 4553f85e193739c953358c865005855253af4f68a497John McCall // Private ivars are always okay. Unfortunately, people don't 4554f85e193739c953358c865005855253af4f68a497John McCall // always properly make their ivars private, even in system headers. 4555f85e193739c953358c865005855253af4f68a497John McCall // Plus we need to make fields okay, too. 4556a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian // Function declarations in sys headers will be marked unavailable. 4557a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian if (!isa<FieldDecl>(decl) && !isa<ObjCPropertyDecl>(decl) && 4558a6b33808ef7e80ab68a052c97dab9077dca159c5Fariborz Jahanian !isa<FunctionDecl>(decl)) 4559f85e193739c953358c865005855253af4f68a497John McCall return false; 4560f85e193739c953358c865005855253af4f68a497John McCall 4561f85e193739c953358c865005855253af4f68a497John McCall // Require it to be declared in a system header. 4562f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getSourceManager().isInSystemHeader(decl->getLocation()); 4563f85e193739c953358c865005855253af4f68a497John McCall} 4564f85e193739c953358c865005855253af4f68a497John McCall 4565f85e193739c953358c865005855253af4f68a497John McCall/// Handle a delayed forbidden-type diagnostic. 4566f85e193739c953358c865005855253af4f68a497John McCallstatic void handleDelayedForbiddenType(Sema &S, DelayedDiagnostic &diag, 4567f85e193739c953358c865005855253af4f68a497John McCall Decl *decl) { 4568f85e193739c953358c865005855253af4f68a497John McCall if (decl && isForbiddenTypeAllowed(S, decl)) { 4569f85e193739c953358c865005855253af4f68a497John McCall decl->addAttr(new (S.Context) UnavailableAttr(diag.Loc, S.Context, 4570f85e193739c953358c865005855253af4f68a497John McCall "this system declaration uses an unsupported type")); 4571f85e193739c953358c865005855253af4f68a497John McCall return; 4572f85e193739c953358c865005855253af4f68a497John McCall } 45734e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (S.getLangOpts().ObjCAutoRefCount) 4574175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(decl)) { 457548d798ce32447607144db70a484cdb99c1180663Benjamin Kramer // FIXME: we may want to suppress diagnostics for all 4576175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian // kind of forbidden type messages on unavailable functions. 4577175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian if (FD->hasAttr<UnavailableAttr>() && 4578175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag.getForbiddenTypeDiagnostic() == 4579175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag::err_arc_array_param_no_ownership) { 4580175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian diag.Triggered = true; 4581175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian return; 4582175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian } 4583175fb1070be0ee24a75064b118f0e13fbe354200Fariborz Jahanian } 4584f85e193739c953358c865005855253af4f68a497John McCall 4585f85e193739c953358c865005855253af4f68a497John McCall S.Diag(diag.Loc, diag.getForbiddenTypeDiagnostic()) 4586f85e193739c953358c865005855253af4f68a497John McCall << diag.getForbiddenTypeOperand() << diag.getForbiddenTypeArgument(); 4587f85e193739c953358c865005855253af4f68a497John McCall diag.Triggered = true; 4588f85e193739c953358c865005855253af4f68a497John McCall} 4589f85e193739c953358c865005855253af4f68a497John McCall 45909257664568bf375b7790131a84d9a4fa30a5b7e3John McCallvoid Sema::PopParsingDeclaration(ParsingDeclState state, Decl *decl) { 45919257664568bf375b7790131a84d9a4fa30a5b7e3John McCall assert(DelayedDiagnostics.getCurrentPool()); 459213489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall DelayedDiagnosticPool &poppedPool = *DelayedDiagnostics.getCurrentPool(); 45939257664568bf375b7790131a84d9a4fa30a5b7e3John McCall DelayedDiagnostics.popWithoutEmitting(state); 45949257664568bf375b7790131a84d9a4fa30a5b7e3John McCall 45959257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // When delaying diagnostics to run in the context of a parsed 45969257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // declaration, we only want to actually emit anything if parsing 45979257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // succeeds. 45989257664568bf375b7790131a84d9a4fa30a5b7e3John McCall if (!decl) return; 45999257664568bf375b7790131a84d9a4fa30a5b7e3John McCall 46009257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // We emit all the active diagnostics in this pool or any of its 46019257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // parents. In general, we'll get one pool for the decl spec 46029257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // and a child pool for each declarator; in a decl group like: 46039257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // deprecated_typedef foo, *bar, baz(); 46049257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // only the declarator pops will be passed decls. This is correct; 46059257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // we really do need to consider delayed diagnostics from the decl spec 46069257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // for each of the different declarations. 460713489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall const DelayedDiagnosticPool *pool = &poppedPool; 46089257664568bf375b7790131a84d9a4fa30a5b7e3John McCall do { 460913489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall for (DelayedDiagnosticPool::pool_iterator 46109257664568bf375b7790131a84d9a4fa30a5b7e3John McCall i = pool->pool_begin(), e = pool->pool_end(); i != e; ++i) { 46119257664568bf375b7790131a84d9a4fa30a5b7e3John McCall // This const_cast is a bit lame. Really, Triggered should be mutable. 46129257664568bf375b7790131a84d9a4fa30a5b7e3John McCall DelayedDiagnostic &diag = const_cast<DelayedDiagnostic&>(*i); 4613eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (diag.Triggered) 46142f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 46152f514480c448708ec382a684cf5e035d3a827ec8John McCall 4616eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall switch (diag.Kind) { 46172f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 4618e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall // Don't bother giving deprecation diagnostics if the decl is invalid. 4619e8c904ff343f440e213b88e6963f5ebfbec7ae60John McCall if (!decl->isInvalidDecl()) 46209257664568bf375b7790131a84d9a4fa30a5b7e3John McCall HandleDelayedDeprecationCheck(diag, decl); 46212f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 46222f514480c448708ec382a684cf5e035d3a827ec8John McCall 46232f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 46249257664568bf375b7790131a84d9a4fa30a5b7e3John McCall HandleDelayedAccessCheck(diag, decl); 46252f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 4626f85e193739c953358c865005855253af4f68a497John McCall 4627f85e193739c953358c865005855253af4f68a497John McCall case DelayedDiagnostic::ForbiddenType: 46289257664568bf375b7790131a84d9a4fa30a5b7e3John McCall handleDelayedForbiddenType(*this, diag, decl); 4629f85e193739c953358c865005855253af4f68a497John McCall break; 463054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 463154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 46329257664568bf375b7790131a84d9a4fa30a5b7e3John McCall } while ((pool = pool->getParent())); 46332f514480c448708ec382a684cf5e035d3a827ec8John McCall} 46342f514480c448708ec382a684cf5e035d3a827ec8John McCall 463513489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall/// Given a set of delayed diagnostics, re-emit them as if they had 463613489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall/// been delayed in the current context instead of in the given pool. 463713489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall/// Essentially, this just moves them to the current pool. 463813489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCallvoid Sema::redelayDiagnostics(DelayedDiagnosticPool &pool) { 463913489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall DelayedDiagnosticPool *curPool = DelayedDiagnostics.getCurrentPool(); 464013489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall assert(curPool && "re-emitting in undelayed context not supported"); 464113489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall curPool->steal(pool); 464213489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall} 464313489673b84fafaaf49cf5ae4e3bb9a945524dcbJohn McCall 46442f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 46452f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 46460a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (D->isDeprecated()) 46472f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 4648c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis // A category implicitly has the availability of the interface. 4649c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis if (const ObjCCategoryDecl *CatD = dyn_cast<ObjCCategoryDecl>(D)) 4650c076e37e2223cfe998fa5e657dece30da78fcdc4Argyrios Kyrtzidis return CatD->getClassInterface()->isDeprecated(); 46512f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 46522f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 46532f514480c448708ec382a684cf5e035d3a827ec8John McCall} 46542f514480c448708ec382a684cf5e035d3a827ec8John McCall 4655c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedmanstatic void 4656c3b2308f66fe8abd2c1a911b500c0b989c295819Eli FriedmanDoEmitDeprecationWarning(Sema &S, const NamedDecl *D, StringRef Message, 4657c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman SourceLocation Loc, 4658c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman const ObjCInterfaceDecl *UnknownObjCClass) { 4659c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman DeclarationName Name = D->getDeclName(); 4660c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman if (!Message.empty()) { 4661c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman S.Diag(Loc, diag::warn_deprecated_message) << Name << Message; 4662c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman S.Diag(D->getLocation(), 4663c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman isa<ObjCMethodDecl>(D) ? diag::note_method_declared_at 4664c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman : diag::note_previous_decl) << Name; 4665c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman } else if (!UnknownObjCClass) { 4666c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman S.Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 4667c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman S.Diag(D->getLocation(), 4668c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman isa<ObjCMethodDecl>(D) ? diag::note_method_declared_at 4669c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman : diag::note_previous_decl) << Name; 4670c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman } else { 4671c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman S.Diag(Loc, diag::warn_deprecated_fwdclass_message) << Name; 4672c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman S.Diag(UnknownObjCClass->getLocation(), diag::note_forward_class); 4673c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman } 4674c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman} 4675c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman 46769c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 46772f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 46782f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 46792f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 46802f514480c448708ec382a684cf5e035d3a827ec8John McCall 46812f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 4682c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman DoEmitDeprecationWarning(*this, DD.getDeprecationDecl(), 4683c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman DD.getDeprecationMessage(), DD.Loc, 4684c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman DD.getUnknownObjCClass()); 468554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 468654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 46875f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid Sema::EmitDeprecationWarning(NamedDecl *D, StringRef Message, 46888e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian SourceLocation Loc, 468989ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian const ObjCInterfaceDecl *UnknownObjCClass) { 469054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 4691eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DelayedDiagnostics.shouldDelayDiagnostics()) { 4692b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, 4693b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian UnknownObjCClass, 4694b0a6615cb9f5e881b81b117017b484fe91112967Fariborz Jahanian Message)); 469554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 469654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 469754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 469854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 46993a387441ae339363ee5b254658f295e97bd9e913Argyrios Kyrtzidis if (isDeclDeprecated(cast<Decl>(getCurLexicalContext()))) 470054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 4701c3b2308f66fe8abd2c1a911b500c0b989c295819Eli Friedman DoEmitDeprecationWarning(*this, D, Message, Loc, UnknownObjCClass); 470254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 4703