SemaDeclAttr.cpp revision 0a0d2b179085a52c10402feebeb6db8b4d96a140
16b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===--- SemaDeclAttr.cpp - Declaration Attribute Handling ----------------===// 26b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 36b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// The LLVM Compiler Infrastructure 46b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 56b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// This file is distributed under the University of Illinois Open Source 66b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// License. See LICENSE.TXT for details. 76b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 86b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===----------------------------------------------------------------------===// 96b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// This file implements decl-related attribute processing. 116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===----------------------------------------------------------------------===// 136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 142d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 1582d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov#include "TargetAttributesSema.h" 166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner#include "clang/AST/ASTContext.h" 17384aff8b94bb0d1ad6c5667b90621e5699815bb2John McCall#include "clang/AST/DeclCXX.h" 18acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/DeclObjC.h" 19acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/Expr.h" 20fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 2119510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 229c3087b0b0bea2fd782205c1274ebfc4290265e0John McCall#include "clang/Sema/DelayedDiagnostic.h" 23797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 259c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallusing namespace sema; 266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 27883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// These constants match the enumerated choices of 28883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// warn_attribute_wrong_decl_type and err_attribute_wrong_decl_type. 29883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCallenum { 30883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunction, 31883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedUnion, 32883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariableOrFunction, 33883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionOrMethod, 34883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameter, 35883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameterOrMethod, 36883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrBlock, 37883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClassOrVirtualMethod, 38883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrParameter, 39883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClass, 40883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVirtualMethod, 41883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClassMember, 42883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariable, 43883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedMethod, 44883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariableFunctionOrLabel 45883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall}; 46883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall 47e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 48e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 49e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 50e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 51a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic const FunctionType *getFunctionType(const Decl *d, 52a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 54a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek if (const ValueDecl *decl = dyn_cast<ValueDecl>(d)) 556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 56a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const FieldDecl *decl = dyn_cast<FieldDecl>(d)) 576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 58a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const TypedefDecl* decl = dyn_cast<TypedefDecl>(d)) 596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 62bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 646217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 65755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 666217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 67d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 68183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 713568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 723568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 733568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 74d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 75a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 76a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunction(const Decl *d) { 77a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return getFunctionType(d, false) != NULL; 78a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 79a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 80a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 81d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 82d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 83a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethod(const Decl *d) { 84a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return isFunction(d)|| isa<ObjCMethodDecl>(d); 85d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 863568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 87620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 88620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 89620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 90a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodOrBlock(const Decl *d) { 91620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (isFunctionOrMethod(d)) 92620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 93620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 94620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 95620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 96620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 97620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 98d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return isa<BlockDecl>(d); 99620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 100620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 101711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Return true if the given decl has a declarator that should have 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// been processed by Sema::GetTypeForDeclarator. 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool hasDeclarator(const Decl *d) { 104711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. 105711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return isa<DeclaratorDecl>(d) || isa<BlockDecl>(d) || isa<TypedefDecl>(d); 106711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 107711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 108d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 109d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 110620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 111a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool hasFunctionProto(const Decl *d) { 112620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 11372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 114620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 115d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian assert(isa<ObjCMethodDecl>(d) || isa<BlockDecl>(d)); 116d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 117d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 1183568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1193568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 120d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 121d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 122d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 123a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic unsigned getFunctionOrMethodNumArgs(const Decl *d) { 12489951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 12572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 126d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 127d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 12889951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_size(); 1293568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1303568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 131a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodArgType(const Decl *d, unsigned Idx) { 13289951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 13372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 134d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 135d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 136bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13789951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_begin()[Idx]->getType(); 1383568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1393568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 140a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodResultType(const Decl *d) { 1415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 1425b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 1435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<ObjCMethodDecl>(d)->getResultType(); 1445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 146a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodVariadic(const Decl *d) { 147d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 14872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1493568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 150d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 151db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 152d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 1533568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 1543568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1553568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1563568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 15707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruthstatic bool isInstanceMethod(const Decl *d) { 15807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(d)) 15907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return MethodDecl->isInstance(); 16007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return false; 16107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth} 16207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 164183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 165b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 167bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 168506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 169506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 171bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 172506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 173bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 179085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1806217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 181085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 182085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 183085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1846217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 185085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 186085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 187bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 188085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 189465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 190085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 191085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 192085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 193085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 194085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 195e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 196e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 197e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 198e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 2003068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 2013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 2023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 203bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleExtVectorTypeAttr(Scope *scope, Decl *d, 2049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor const AttributeList &Attr, Sema &S) { 205545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 206545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 207803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 208545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 2096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 210bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 2129cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2139cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 2149cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2159cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 2169cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 217f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 218f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 219f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 220f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall sizeExpr = S.ActOnIdExpression(scope, SS, id, false, false).takeAs<Expr>(); 2219cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 2229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 2239cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getNumArgs() != 1) { 2249cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 2269cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 2277a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne sizeExpr = Attr.getArg(0); 2286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2299cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2309cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 2319cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 2329ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 2339cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 234ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 235a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 236bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2379cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 2389cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 2396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 242803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 244545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2453c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 248bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 250cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt TD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 255803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 256fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 25708631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 259cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt FD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2613c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 26463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBAction(Decl *d, const AttributeList &Attr, Sema &S) { 26596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 26696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2673c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 26896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 26996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 270bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 27163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 27263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 27363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 274cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBActionAttr(Attr.getLoc(), S.Context)); 27563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 27663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 27763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 2784ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); 27963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 28063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 28163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBOutlet(Decl *d, const AttributeList &Attr, Sema &S) { 28263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 28363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (Attr.getNumArgs() > 0) { 28463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 28563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 28663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 28763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 28863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBOutlet attributes only apply to instance variables of 289efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek // Objective-C classes. 290efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek if (isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d)) { 291cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletAttr(Attr.getLoc(), S.Context)); 29263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 293efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek } 29463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 2954ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 29696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 29796329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 298857e918a8a40deb128840308a318bf623d68295fTed Kremenekstatic void HandleIBOutletCollection(Decl *d, const AttributeList &Attr, 299857e918a8a40deb128840308a318bf623d68295fTed Kremenek Sema &S) { 300857e918a8a40deb128840308a318bf623d68295fTed Kremenek 301857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 302a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 303857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 304857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 305857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 306857e918a8a40deb128840308a318bf623d68295fTed Kremenek 307857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The IBOutletCollection attributes only apply to instance variables of 308857e918a8a40deb128840308a318bf623d68295fTed Kremenek // Objective-C classes. 309857e918a8a40deb128840308a318bf623d68295fTed Kremenek if (!(isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d))) { 3104ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 311857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 312857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 3133a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ValueDecl *VD = dyn_cast<ValueDecl>(d)) 3143a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 3153a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 3163a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << VD->getType() << 0; 3173a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 3183a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 3193a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(d)) 3203a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 3213a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 3223a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << PD->getType() << 1; 3233a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 3243a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 3253a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 326a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 327a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 328a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 3293a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 330b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 331a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.getScopeForContext(d->getDeclContext()->getParent())); 332a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 333a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 334a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 335a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 336b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 337a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 338a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 339a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 340a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 341a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 342a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 343a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 344a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 345a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 346cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getLoc(), S.Context, 347cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt QT)); 348857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 349857e918a8a40deb128840308a318bf623d68295fTed Kremenek 350eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 351bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 352bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 353d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 354fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 355883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 356eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 357eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 358bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 35907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 36007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 36107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 36207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 363eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 364eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 365eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 366bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 367eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 368eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 369bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 370bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 371eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 3727a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Ex = *I; 373eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 374ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 375ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 376fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 377fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 378eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 379eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 380bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 381eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 382bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 383eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 384fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 38530bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 386eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 387eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 388bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 389465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 39007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 39107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 39207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 39307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_attribute_invalid_implicit_this_argument) 39407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "nonnull" << Ex->getSourceRange(); 39507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 39607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 39707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 39807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 399eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 400eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 401de43632a5951abf3f357e2f79dcddda4dc6ec8ffDouglas Gregor QualType T = getFunctionOrMethodArgType(d, x).getNonReferenceType(); 402dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 403eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 404c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 405fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 4067fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 407eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 408bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 409eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 410eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 411bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 412bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 413bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 4147fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 41546bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 416de43632a5951abf3f357e2f79dcddda4dc6ec8ffDouglas Gregor QualType T = getFunctionOrMethodArgType(d, I).getNonReferenceType(); 417dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 418d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 419ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian else if (const RecordType *UT = T->getAsUnionType()) { 420ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { 421ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian RecordDecl *UD = UT->getDecl(); 422ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian for (RecordDecl::field_iterator it = UD->field_begin(), 423ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian itend = UD->field_end(); it != itend; ++it) { 424ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian T = it->getType(); 425ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian if (T->isAnyPointerType() || T->isBlockPointerType()) { 426ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian NonNullArgs.push_back(I); 427ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian break; 428ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 429ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 430ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 431ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 43246bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 433bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 434ee1c08c88649aaea9dd53272a726cd23de533215Ted Kremenek // No pointer arguments? 43560acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 43660acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 43760acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 43860acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 43960acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 4407fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 44160acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 442eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 4437fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 4447fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 4457fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 446dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 447cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NonNullAttr(Attr.getLoc(), S.Context, start, 448cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 449eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 450eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 451dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenekstatic void HandleOwnershipAttr(Decl *d, const AttributeList &AL, Sema &S) { 452dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 453dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 454dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 455dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 456dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 457dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 4582a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 4592a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 460dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 461dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 462dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 463dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 464dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 465dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 466dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 467cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 4682a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 4692a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 470cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 471dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 472dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 473dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 474dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4752a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4762a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 477cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 478dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 479dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 480dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 481dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4822a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4832a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 484cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 485dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 486dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 487dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 488dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 489dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4902a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4912a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4922a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 4932a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 494dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 495dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 496dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!isFunction(d) || !hasFunctionProto(d)) { 497883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) 498883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << AL.getName() << ExpectedFunction; 499dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 500dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 501dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 50207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 50307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 50407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 50507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 506dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 507dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::StringRef Module = AL.getParameterName()->getName(); 508dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 509dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 510dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 511dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 512dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 513dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::SmallVector<unsigned, 10> OwnershipArgs; 514dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 5152a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 5162a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 517dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 5187a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = *I; 519dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 520dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 521dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 522dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 523dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 524dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 525dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 526dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 527dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 528dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 529dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 530dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 531dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 532dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 533dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 534dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 53507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 53607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 53707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 53807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "ownership" << IdxExpr->getSourceRange(); 53907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 54007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 54107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 54207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 54307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 544dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 545cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 546cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 547dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 548dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek QualType T = getFunctionOrMethodArgType(d, x); 549dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 550dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 551dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 552cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 553dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 554dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 555dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 556dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 557dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 558dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 559cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 560dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 561dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 5627a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = AL.getArg(0); 563dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 564dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 565dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 566dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 567dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 568dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 569dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 570dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 571dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 572dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 573dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5742a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 5752a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 576dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 577dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 578dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 579cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 580cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i = d->specific_attr_begin<OwnershipAttr>(), 581cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt e = d->specific_attr_end<OwnershipAttr>(); 582cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 583cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 584cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 585cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 586cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 587cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 588cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 589dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 590dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 591dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 592dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 593dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 594dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 595dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 596dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 597dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 598dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 599cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 600cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 601cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 602cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 603dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 604cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 605cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 606cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 607dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 608dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 609332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// Whether this declaration has internal linkage for the purposes of 610332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// things that want to complain about things not have internal linkage. 611332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCallstatic bool hasEffectivelyInternalLinkage(NamedDecl *D) { 612332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall switch (D->getLinkage()) { 613332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case NoLinkage: 614332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case InternalLinkage: 615332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 616332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 617332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // Template instantiations that go from external to unique-external 618332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // shouldn't get diagnosed. 619332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case UniqueExternalLinkage: 620332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 621332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 622332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case ExternalLinkage: 623332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return false; 624332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 625332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall llvm_unreachable("unknown linkage kind!"); 62611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 62711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 62811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 62911e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic void HandleWeakRefAttr(Decl *d, const AttributeList &Attr, Sema &S) { 63011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 63111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 63211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 63311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 63411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 63511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 636332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!isa<VarDecl>(d) && !isa<FunctionDecl>(d)) { 637332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 638883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 639332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return; 640332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 641332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 642332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall NamedDecl *nd = cast<NamedDecl>(d); 643332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 64411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 64511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 64611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 64711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 64811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 64911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 65011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 65111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 65211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 65311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 6547a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl const DeclContext *Ctx = d->getDeclContext()->getRedeclContext(); 6557a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 6567a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 657332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall nd->getNameAsString(); 6587a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 65911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 66011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 66111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 66211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 66311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 66411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 66511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 66611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 66711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 66811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 66911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 67011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 67111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 67211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 67311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 67411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 67511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 67611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 67711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 67811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 679332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!hasEffectivelyInternalLinkage(nd)) { 680332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); 68111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 68211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 68311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 68411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 68511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 68611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 68711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 68811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 6897a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 69011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 69111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 69211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 69311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Str == 0 || Str->isWide()) { 69411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 69511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 69611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 69711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 69811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 69911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 700f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, 701f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 70211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 70311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 704cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) WeakRefAttr(Attr.getLoc(), S.Context)); 70511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 70611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 707803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 7086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 709545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 7103c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 7116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 713bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7147a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 7156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 7166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 717bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 719fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 7203c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 7216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 723bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 724f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola if (S.Context.Target.getTriple().getOS() == llvm::Triple::Darwin) { 725f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); 726f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola return; 727f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola } 728f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola 7296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 730bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 731f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, 732f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 7336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 735dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbarstatic void HandleNakedAttr(Decl *d, const AttributeList &Attr, 736dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar Sema &S) { 737dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 738dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar if (Attr.getNumArgs() != 0) { 739dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 740dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 741dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 742dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 743dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar if (!isa<FunctionDecl>(d)) { 744dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 745883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 746dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 747dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 748dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 749dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar d->addAttr(::new (S.Context) NakedAttr(Attr.getLoc(), S.Context)); 750dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar} 751dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 752bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 753af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 754dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 755af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 7563c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 757af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 758af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 7595bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 760c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 7615bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 762883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 7635bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 7645bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 765bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 766cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getLoc(), S.Context)); 767af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 768af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 76976168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynnstatic void HandleMallocAttr(Decl *d, const AttributeList &Attr, Sema &S) { 770dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 77176168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn if (Attr.getNumArgs() != 0) { 77276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 77376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 77476168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 7751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7762cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 7771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 7782cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 779cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) MallocAttr(Attr.getLoc(), S.Context)); 7802cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 7812cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 782fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 783fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 7842cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 78576168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 78676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 78734c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohmanstatic void HandleMayAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 78834c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman // check the attribute arguments. 78934c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman if (Attr.getNumArgs() != 0) { 79034c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 79134c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman return; 79234c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman } 79334c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 79434c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman d->addAttr(::new (S.Context) MayAliasAttr(Attr.getLoc(), S.Context)); 79534c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman} 79634c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 797a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopherstatic void HandleNoCommonAttr(Decl *d, const AttributeList &Attr, Sema &S) { 798a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher assert(Attr.isInvalid() == false); 799722109c1b7718d3e8aab075ce65007b372822199Eric Christopher if (isa<VarDecl>(d)) 800722109c1b7718d3e8aab075ce65007b372822199Eric Christopher d->addAttr(::new (S.Context) NoCommonAttr(Attr.getLoc(), S.Context)); 801722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 802722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 803883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 804a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 805a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 806a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopherstatic void HandleCommonAttr(Decl *d, const AttributeList &Attr, Sema &S) { 807a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher assert(Attr.isInvalid() == false); 808722109c1b7718d3e8aab075ce65007b372822199Eric Christopher if (isa<VarDecl>(d)) 809722109c1b7718d3e8aab075ce65007b372822199Eric Christopher d->addAttr(::new (S.Context) CommonAttr(Attr.getLoc(), S.Context)); 810722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 811722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 812883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 813a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 814a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 815711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void HandleNoReturnAttr(Decl *d, const AttributeList &attr, Sema &S) { 816711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (hasDeclarator(d)) return; 817711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 818711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) return; 819711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 820711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!isa<ObjCMethodDecl>(d)) { 821711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 822883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 823711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 824711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 825711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 826711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) NoReturnAttr(attr.getLoc(), S.Context)); 827711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 828711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 829711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckNoReturnAttr(const AttributeList &attr) { 830711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 831711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 832711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 833711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 834711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 835711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 836711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 837b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 838b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 839b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 840b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek Sema &S) { 841b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 842b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 843b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 844b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 845545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 846e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 847b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 8486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 849b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 85019c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 85119c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 8523ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 8533ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 854e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 855e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 856b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 857883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 858b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 85919c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 8606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 861b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 862b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek d->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getLoc(), S.Context)); 8636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 86535cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 86635cc9627340b15232139b3c43fcde5973e7fad30John Thompsonstatic void HandleVecReturnAttr(Decl *d, const AttributeList &Attr, 86735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Sema &S) { 86835cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 86935cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 87035cc9627340b15232139b3c43fcde5973e7fad30John Thompson 871f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher According to the PPU ABI specifications, a class with a single member of 872f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher vector type is returned in memory when used as the return value of a function. 873f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher This results in inefficient code when implementing vector classes. To return 874f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher the value in a single vector register, add the vecreturn attribute to the 875f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher class definition. This attribute is also applicable to struct types. 87635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 87735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 87835cc9627340b15232139b3c43fcde5973e7fad30John Thompson 87935cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 88035cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 88135cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 88235cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 88335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 88435cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 88535cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 88635cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 88735cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 88835cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 88935cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 89035cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 89101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<RecordDecl>(d)) { 89235cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 893883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedClass; 89435cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 89535cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 89635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 89735cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (d->getAttr<VecReturnAttr>()) { 89835cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 89935cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 90035cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 90135cc9627340b15232139b3c43fcde5973e7fad30John Thompson 90201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson RecordDecl *record = cast<RecordDecl>(d); 90301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 90401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 90501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 90601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 90701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 90801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 90901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 91001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 91101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 91201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 91301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 91401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 915f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher for (RecordDecl::field_iterator iter = record->field_begin(); 916f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher iter != record->field_end(); iter++) { 91701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 91801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 91901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 92001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 92101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 92201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 92301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 924cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VecReturnAttr(Attr.getLoc(), S.Context)); 92535cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 92635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 927bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleDependencyAttr(Decl *d, const AttributeList &Attr, Sema &S) { 928bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isFunctionOrMethod(d) && !isa<ParmVarDecl>(d)) { 929bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 930883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrParameter; 931bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 932bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 933bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 934bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 935bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 93673798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 93773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 93873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 9393c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 94073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 94173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 942bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 943aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall if (!isa<VarDecl>(d) && !isa<ObjCIvarDecl>(d) && !isFunctionOrMethod(d) && 94457ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner !isa<TypeDecl>(d) && !isa<LabelDecl>(d)) { 945fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 946883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableFunctionOrLabel; 94773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 94873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 949bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 950cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UnusedAttr(Attr.getLoc(), S.Context)); 95173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 95273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 953b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 954b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 955b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 956b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 957b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 958b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 959bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 960b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 961186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 962b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 963b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 964b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 965b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 966b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 967883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 968b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 969b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 970bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 971cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UsedAttr(Attr.getLoc(), S.Context)); 972b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 973b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 9743068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9753068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 976bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 977bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 9783068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 979bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 9803068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 9813068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 9823068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 9837a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 9843068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 985ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 986ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 987fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 9883c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 9893068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 9903068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 9913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 9923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 993bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 994c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 995fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 996883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 9973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 9983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 9993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1000f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) ConstructorAttr(Attr.getLoc(), S.Context, 1001f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 10023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 10033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 10043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 10053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1006bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1007bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 10083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1009bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 10103068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 10113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 10123068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 10137a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 10143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1015ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1016ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1017fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10183c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 10193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 10203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 10213068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 10223068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1023bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10246782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 1025fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1026883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 10273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 10283068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 10293068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1030f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) DestructorAttr(Attr.getLoc(), S.Context, 1031f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 10323068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 10333068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1034803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1035951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1036951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1037bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1038c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1039c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1040951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1041c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian // Handle the case where deprecated attribute has a text message. 1042951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner llvm::StringRef Str; 1043951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1044951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1045c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (!SE) { 1046951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) 1047951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner << "deprecated"; 1048c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1049c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1050951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 10516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1052bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1053951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner d->addAttr(::new (S.Context) DeprecatedAttr(Attr.getLoc(), S.Context, Str)); 10546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 10556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1056bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1057951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1058951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1059bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1060bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 1061bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 1062951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1063c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian // Handle the case where unavailable attribute has a text message. 1064951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner llvm::StringRef Str; 1065951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1066951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1067c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (!SE) { 1068951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), 1069c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian diag::err_attribute_not_string) << "unavailable"; 1070c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian return; 1071c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1072951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 1073c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1074951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner d->addAttr(::new (S.Context) UnavailableAttr(Attr.getLoc(), S.Context, Str)); 1075bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 1076bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 10770a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregorstatic void HandleAvailabilityAttr(Decl *d, const AttributeList &Attr, 10780a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Sema &S) { 10790a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor IdentifierInfo *Platform = Attr.getParameterName(); 10800a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor SourceLocation PlatformLoc = Attr.getParameterLoc(); 10810a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 10820a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor llvm::StringRef PlatformName 10830a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor = AvailabilityAttr::getPrettyPlatformName(Platform->getName()); 10840a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (PlatformName.empty()) { 10850a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(PlatformLoc, diag::warn_availability_unknown_platform) 10860a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << Platform; 10870a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 10880a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor PlatformName = Platform->getName(); 10890a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 10900a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 10910a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Introduced = Attr.getAvailabilityIntroduced(); 10920a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Deprecated = Attr.getAvailabilityDeprecated(); 10930a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Obsoleted = Attr.getAvailabilityObsoleted(); 10940a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 10950a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor // Ensure that Introduced < Deprecated < Obsoleted (although not all 10960a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor // of these steps are needed). 10970a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Deprecated.isValid() && 10980a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor !(Introduced.Version < Deprecated.Version)) { 10990a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 11000a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << PlatformName << Deprecated.Version.getAsString() 11010a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 11020a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 11030a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 11040a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 11050a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Obsoleted.isValid() && 11060a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor !(Introduced.Version < Obsoleted.Version)) { 11070a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 11080a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 11090a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 11100a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 11110a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 11120a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 11130a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Deprecated.isValid() && Obsoleted.isValid() && 11140a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor !(Deprecated.Version < Obsoleted.Version)) { 11150a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Deprecated.KeywordLoc, diag::warn_availability_version_ordering) 11160a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 11170a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << Deprecated.Version.getAsString(); 11180a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 11190a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 11200a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 11210a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor d->addAttr(::new (S.Context) AvailabilityAttr(Attr.getLoc(), S.Context, 11220a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Platform, 11230a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Introduced.Version, 11240a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Deprecated.Version, 11250a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Obsoleted.Version)); 11260a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor} 11270a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 1128803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 11296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1130545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 11313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1134bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11357a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 11366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 11376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1138bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 1140fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 11413c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 11426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1144bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1145c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer llvm::StringRef TypeStr = Str->getString(); 1146cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 1147bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1148c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 1149cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 1150c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 1151cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 1152c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 1153cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 1154c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 1155cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Protected; 11566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 115708631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 11586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1160bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1161cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VisibilityAttr(Attr.getLoc(), S.Context, type)); 11626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1164d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCallstatic void HandleObjCMethodFamilyAttr(Decl *decl, const AttributeList &attr, 1165d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall Sema &S) { 1166d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); 1167d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (!method) { 1168d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_decl_type) 1169883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedMethod; 1170d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1171d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1172d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1173d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (attr.getNumArgs() != 0 || !attr.getParameterName()) { 1174d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (!attr.getParameterName() && attr.getNumArgs() == 1) { 1175d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall S.Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 1176d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall << "objc_method_family" << 1; 1177d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } else { 1178d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1179d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1180d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall attr.setInvalid(); 1181d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1182d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1183d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1184d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall llvm::StringRef param = attr.getParameterName()->getName(); 1185d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodFamilyAttr::FamilyKind family; 1186d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (param == "none") 1187d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_None; 1188d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "alloc") 1189d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_alloc; 1190d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "copy") 1191d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_copy; 1192d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "init") 1193d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_init; 1194d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "mutableCopy") 1195d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_mutableCopy; 1196d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "new") 1197d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_new; 1198d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else { 1199d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // Just warn and ignore it. This is future-proof against new 1200d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // families being used in system headers. 1201d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall S.Diag(attr.getParameterLoc(), diag::warn_unknown_method_family); 1202d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1203d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1204d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1205d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall decl->addAttr(new (S.Context) ObjCMethodFamilyAttr(attr.getLoc(), 1206d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall S.Context, family)); 1207d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall} 1208d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 12090db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 12100db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 12110db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 12120db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12130db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 12140db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1215bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12160db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 12170db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 12180db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 12190db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 12200db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1221bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1222cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getLoc(), S.Context)); 12230db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 12240db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 12250db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 1226fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 12272b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1228fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1229fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 12300db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 1231fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 1232fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 12336217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 1234fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 1235fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1236fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1237fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1238cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getLoc(), S.Context)); 1239fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 1240fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 1241bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 1242f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1243f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 12442b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1245f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1246f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1247f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1248f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 1249f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 1250f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1251f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1252f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1253cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) OverloadableAttr(Attr.getLoc(), S.Context)); 1254f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 1255f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 12569eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1257bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1258fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 12593c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 12609eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 12619eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1262bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12639eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 12643c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12659eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 12669eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1267bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1268cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 126992e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 12709eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 12719eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 1272fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 12733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 12749eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 12759eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1276bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1277cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) BlocksAttr(Attr.getLoc(), S.Context, type)); 12789eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 12799eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 1280770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1281770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 1282770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 1283bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 1284770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1285bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1286bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1287770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 1288770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 12897a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 1290770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1291ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1292ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1293fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 12943c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1295770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1296770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1297770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 1298bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1299770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 1300fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1301fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1302770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1303770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1304770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1305770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1306770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 1307770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 13087a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(1); 1309770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1310ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1311ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1312fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 13133c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1314770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1315770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1316770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1317bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1318770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 1319770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1320770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1321fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1322fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1323770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1324770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1325770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1326770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1327770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 1328183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = FD->getType()->getAs<FunctionType>(); 1329897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 1330bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1331897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1332897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1333897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1334897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1335bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1336897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 13373bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1338770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1339bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1340770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 1341770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 13423bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1343770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 13442f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 13452f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 1346bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1347bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 13482f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 13492f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 13502f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1351daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 1352bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 1353f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 13542f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 13553bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 13563bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 13572f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 13582f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1359ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 13602f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1361883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 13622f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 13632f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1364770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1365fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1366883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1367770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1368770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1369f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) SentinelAttr(Attr.getLoc(), S.Context, sentinel, 1370f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher nullPos)); 1371770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1372770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1373026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 1374026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 1375026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 1376026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1377026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1378026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1379026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1380f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1381026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1382883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 1383026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1384026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1385bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1386f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1387f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1388f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1389f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1390f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1391f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1392f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1393f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1394f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1395f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1396f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1397f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1398cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getLoc(), S.Context)); 1399026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1400026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1401332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCallstatic void HandleWeakAttr(Decl *d, const AttributeList &attr, Sema &S) { 14026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1403332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (attr.getNumArgs() != 0) { 1404332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 14056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14076e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1408332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!isa<VarDecl>(d) && !isa<FunctionDecl>(d)) { 1409332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1410883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedVariableOrFunction; 1411f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1412f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1413f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 1414332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall NamedDecl *nd = cast<NamedDecl>(d); 1415332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1416332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // 'weak' only applies to declarations with external linkage. 1417332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (hasEffectivelyInternalLinkage(nd)) { 1418332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(attr.getLoc(), diag::err_attribute_weak_static); 14196e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 14206e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1421bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1422332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall nd->addAttr(::new (S.Context) WeakAttr(attr.getLoc(), S.Context)); 14236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 14246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14256e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 14266e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 14276e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 14286e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 14296e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 1430bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 14316e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 14326e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 14336e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 14340a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (!D->canBeWeakImported(isDef)) { 14350a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (isDef) 14360a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Attr.getLoc(), 14370a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor diag::warn_attribute_weak_import_invalid_on_definition) 14380a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << "weak_import" << 2 /*variable and function*/; 14390a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor else if (S.Context.Target.getTriple().getOS() != llvm::Triple::Darwin || 14400a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor (!isa<ObjCInterfaceDecl>(D) && 14410a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor !isa<ObjCPropertyDecl>(D) && 14420a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor !isa<ObjCMethodDecl>(D))) 1443c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1444883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 14456e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 14466e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 14476e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 14486e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1449cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakImportAttr(Attr.getLoc(), S.Context)); 14506e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 14516e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 14526f3d838867538638b9bbf412028e8537ae12f3e5Nate Begemanstatic void HandleReqdWorkGroupSize(Decl *D, const AttributeList &Attr, 14536f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Sema &S) { 14546f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 14556f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 14562b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 14576f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 14586f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 14596f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 14606f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 14616f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 14627a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(i); 14636f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1464ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1465ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 14666f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 14676f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 14686f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 14696f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 14706f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 14716f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 1472cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getLoc(), S.Context, 1473cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 14746f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 14756f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 14766f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 1477026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 147817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 147917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 148017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 148117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 148217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 148317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 148417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 148517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 14867a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1487797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 148817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1489797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 149017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 149117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 14921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1493797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1494bb377edda2656752016a0bc01fe4f9f8b6f80e19Benjamin Kramer std::string Error = S.Context.Target.isValidSectionSpecifier(SE->getString()); 1495a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 1496a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 1497a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 1498797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 1499797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 15001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1501a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 1502a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 1503a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 1504a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 1505a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 1506a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 1507f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher D->addAttr(::new (S.Context) SectionAttr(Attr.getLoc(), S.Context, 1508f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 150917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 151017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 15116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1512803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 15136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1514545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 15153c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 15166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1518bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1519cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoThrowAttr(Attr.getLoc(), S.Context)); 15206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 15216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1522232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1523232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1524232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 15253c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1526232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1527232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1528bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1529cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ConstAttr(Attr.getLoc(), S.Context)); 1530232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1531232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1532232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1533232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1534232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 15353c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1536232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1537232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1538bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1539cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) PureAttr(Attr.getLoc(), S.Context)); 1540232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1541232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1542f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1543bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1544f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1545f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1546f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1547bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1548f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1549f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1550f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1551f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1552bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1553f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1554bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1555f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1556f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1557f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1558f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1559bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1560f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 1561c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 1562f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 1563f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis = S.LookupSingleName(S.TUScope, Attr.getParameterName(), 1564f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis Attr.getParameterLoc(), Sema::LookupOrdinaryName); 1565f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 1566f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << 1567f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1568f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1569f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1570bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1571f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1572f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 1573f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 1574f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_arg_not_function) 1575f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 1576f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1577f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1578f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1579f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 1580f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 1581f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_func_must_take_one_arg) 1582f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 1583f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1584f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1585bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 158689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 158789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 158889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 158989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1590b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), 1591b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor ParamTy, Ty) != Sema::Compatible) { 1592f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 159389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 159489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 159589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 159689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 1597bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1598cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CleanupAttr(Attr.getLoc(), S.Context, FD)); 1599223ae5c26654e5fd7dacdafe43aff28a096ba63bArgyrios Kyrtzidis S.MarkDeclarationReferenced(Attr.getParameterLoc(), FD); 1600f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1601f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1602bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 1603bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1604bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleFormatArgAttr(Decl *d, const AttributeList &Attr, Sema &S) { 16055b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 16065b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 16075b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 16085b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 16095b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 16105b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1611883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 16125b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 16135b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 161407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 161507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 161607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 161707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 161807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 16195b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 162007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 16215b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 16227a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 16235b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 1624ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1625ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 16265b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 16275b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 16285b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 16295b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1630bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16315b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 16325b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 16335b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 16345b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 16355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1636bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16375b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 1638bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 163907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 164007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (ArgIdx == 0) { 164107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 164207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "format_arg" << IdxExpr->getSourceRange(); 164307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 164407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 164507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth ArgIdx--; 164607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 164707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 16485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 16495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 1650bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 16525b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 16535b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 16545b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 16556217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 16565b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 16575b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1658bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 16595b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 16605b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1661bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 16625b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Ty = getFunctionOrMethodResultType(d); 16635b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 16645b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 16655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 16666217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 16675b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 16685b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 1669bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 16705b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 16715b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1672bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1673bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 167407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth d->addAttr(::new (S.Context) FormatArgAttr(Attr.getLoc(), S.Context, 167507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth Idx.getZExtValue())); 16765b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 16775b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 16782b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 16792b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 16802b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 16812b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 16822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 16833c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 16842b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 16852b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 16862b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 16872b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 16882b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 16892b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarstatic FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { 16902b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 16912b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 16922b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 16932b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 16942b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 16952b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 16962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 16972b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 16982b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 16992b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 17002b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 17012b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 1702cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "zcmn_err" || 1703cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "kprintf") // OpenBSD. 17042b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 17052b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1706bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 1707bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 17083c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 17093c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 17102b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 17112b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 17122b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1713521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 1714521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 1715521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanianstatic void HandleInitPriorityAttr(Decl *d, const AttributeList &Attr, 1716521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Sema &S) { 1717521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 1718521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1719521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1720521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1721521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1722b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!isa<VarDecl>(d) || S.getCurFunctionOrMethodDecl()) { 1723b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1724b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1725b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1726b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1727b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian QualType T = dyn_cast<VarDecl>(d)->getType(); 1728b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 1729b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 1730b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 1731b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1732b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1733b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1734b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1735b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1736521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 1737521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1738521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1739521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1740521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 17417a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *priorityExpr = Attr.getArg(0); 1742b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1743521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 1744521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 1745521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 1746521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1747521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 1748521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1749521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1750521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 17519f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 1752521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 1753521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 1754521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 1755521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1756521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1757521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1758f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) InitPriorityAttr(Attr.getLoc(), S.Context, 1759f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher prioritynum)); 1760521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 1761521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1762bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 1763bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1764803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 17656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1766545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1767fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 17683c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 17696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1772545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 17733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 17746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1777620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1778fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1779883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 17806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 178307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 178407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 178507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 178607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 17876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 17886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 178901eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Format = Attr.getParameterName()->getName(); 17906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 17922b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 17932b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 17942b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 17952b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 17962b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 17973c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 17983c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 17993c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 18003c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 18012b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 1802fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 180301eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 18046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 18087a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 1809803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1810ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1811ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1812fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18133c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 18146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1818fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 18193c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 18206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 18246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 1825bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18264a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 18274a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 182807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 182907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_format_attribute_implicit_this_format_string) 183007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << IdxExpr->getSourceRange(); 18314a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 18324a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 18334a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 18344a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 18351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 18373568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 18386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18392b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 1840085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1841fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1842fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1843085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1844085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 18452b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 1846390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1847390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1848803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1849390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1850fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1851fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 18526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1853bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 18546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 18556217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 1856390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1857fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1858fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 18596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 18637a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *FirstArgExpr = Attr.getArg(1); 1864803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1865ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 1866ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1867fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18683c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 18696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 18736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 18743568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 18756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 18766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1877803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 18786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18823c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 18833c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 18842b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 18856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1886fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1887fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 18886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 18916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1892fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 18933c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 18946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1897cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FormatAttr(Attr.getLoc(), S.Context, Format, 1898cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 18992b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 19006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 19016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19020b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 19030b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 19046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1905545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 19063c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19100c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 19110c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1912bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 19130c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 19140c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 19150c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 19160c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 19170c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 19180c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1919fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1920883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedUnion; 19216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19240c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 1925bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 19260c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 19270c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 19280c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 19290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 193017945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 193117945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 19320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 19330c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 19340c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 19350c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1936bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 19370c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 19380c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 193990cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 1940bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 194190cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 194290cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 19430c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 19440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1945bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 19460c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 19470c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 19480c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 19490c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 19500c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 19510c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 19520c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 19530c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 1954bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 19550c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 1956bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 19570c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 19580c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 19590c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 1960bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 19610c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 19620c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1963bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1964bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1965bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 19666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1967cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getLoc(), S.Context)); 19686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 19696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19700b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 19716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1972545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 19733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 19746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19767a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1977797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 1978bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 19806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 19816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 1982797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 19836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1985f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) AnnotateAttr(Attr.getLoc(), S.Context, 1986f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 19876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 19886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19894ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthstatic void HandleAlignedAttr(Decl *D, const AttributeList &Attr, Sema &S) { 19906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1991545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 19923c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 19936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1995bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1996bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 1997bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 1998bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 19996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2000545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 2001cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) AlignedAttr(Attr.getLoc(), S.Context, true, 0)); 20024ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 20034ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 20044ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 20057a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne S.AddAlignedAttr(Attr.getLoc(), D, Attr.getArg(0)); 20064ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 20074ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 20084ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, Expr *E) { 20094ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 20104ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 2011cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 20126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 20136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2014bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2015cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 201649e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 20174ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 20184ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 20194ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 202049e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 202149e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 2022396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 20234ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 20244ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 2025396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 2026396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 2027396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 2028cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 2029cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 2030cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 2031cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Huntvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, TypeSourceInfo *TS) { 2032cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 2033cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 2034cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, false, TS)); 2035cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 20366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2037fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2038bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HandleModeAttr - This attribute modifies the width of a decl with primitive 2039bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 2040fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 2041bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 2042bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 2043bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 20440b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 2045fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 2046fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 2047fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2048fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 2049fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 20503c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2051fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2052fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2053fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2054fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 2055fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 20560b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 2057fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2058fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2059210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 206001eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Str = Attr.getParameterName()->getName(); 2061fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2062fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 2063210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 2064210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 2065fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2066fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 2067fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 206873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 2069210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 2070fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 207173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 207273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 207373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 207473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 207573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 207673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 207773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 207873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 207973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 208073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 208173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 208273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 208373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 208473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 208573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 208673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2087fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2088fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 2089fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 2090fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 2091210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 20920b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 2093210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 20940b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 2095fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2096fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 2097210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 20980b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 2099fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2100fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2101fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2102fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 2103fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 2104fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 2105fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 2106fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 2107fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 2108fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 2109fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 2110fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2111fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 211273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2113183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 211473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 211573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 21162ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 211773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 211873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 211973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 212073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 212173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 212273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 212373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 212473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 212573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2126390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 2127390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 2128390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 2129390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 2130f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 2131f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 2132fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 2133fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 2134fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 21353c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 2136fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2137fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 21383c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2139fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2140fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 214173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 214273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 214373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 214473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2145fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 21460b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 2147fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 21480b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 2149fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2150fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 215173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 215273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 215373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 215473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2155fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 21560b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 2157fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 21580b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 2159fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2160fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 2161fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 21620b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 2163fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 21640b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 2165fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 21660b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 2167fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2168fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 2169fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 21700b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 2171fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 2172aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 2173aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 2174aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2175aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 2176fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 2177aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 2178aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 2179aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2180aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 2181fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 218273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 218373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 218473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2185f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 2186f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 2187f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2188f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 2189f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 2190f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 2191f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 2192f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 2193f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 219473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2195fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2196fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 219773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 219873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 2199fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2200fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2201fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 2202ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 2203ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 2204a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 2205ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 2206fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 2207fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 22080744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 22091feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoDebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2210d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 2211d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 2212d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2213d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2214d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2215e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 22165bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 2217d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2218883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2219d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2220d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2221bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2222cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoDebugAttr(Attr.getLoc(), S.Context)); 2223d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 2224d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 22251feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 22265bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 22275bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 22285bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 22295bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 22305bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2231bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2232c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 22335bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2234883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 22355bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 22365bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2237bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2238cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoInlineAttr(Attr.getLoc(), S.Context)); 22395bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 22405bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 22417255a2d997b15beae82e627052fdb1b2474495c2Chris Lattnerstatic void HandleNoInstrumentFunctionAttr(Decl *d, const AttributeList &Attr, 22427255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner Sema &S) { 22437255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 22447255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (Attr.getNumArgs() != 0) { 22457255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 22467255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 22477255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 22487255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 22497255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (!isa<FunctionDecl>(d)) { 22507255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2251883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 22527255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 22537255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 22547255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2255f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getLoc(), 2256f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 22577255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 22587255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2259ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleConstantAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2260ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2261ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2262ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2263ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2264ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2265ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2266ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2267ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<VarDecl>(d)) { 2268ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2269883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2270ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2271ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2272ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2273ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getLoc(), S.Context)); 2274ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2275ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; 2276ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2277ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2278ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2279ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleDeviceAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2280ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2281ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2282ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2283ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2284ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2285ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2286ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2287ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<FunctionDecl>(d) && !isa<VarDecl>(d)) { 2288ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2289883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 2290ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2291ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2292ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2293ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getLoc(), S.Context)); 2294ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2295ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; 2296ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2297ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2298ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2299ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleGlobalAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2300ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2301ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2302ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2303ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2304ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2305ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2306ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2307ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<FunctionDecl>(d)) { 2308ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2309883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2310ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2311ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2312ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 23132c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne FunctionDecl *FD = cast<FunctionDecl>(d); 23142c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (!FD->getResultType()->isVoidType()) { 2315723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); 23162c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { 23172c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 23182c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType() 23192c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), 23202c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne "void"); 23212c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } else { 23222c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 23232c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType(); 23242c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 23252c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne return; 23262c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 23272c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne 2328ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getLoc(), S.Context)); 2329ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2330ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; 2331ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2332ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2333ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2334ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleHostAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2335ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2336ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2337ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2338ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2339ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2340ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2341ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2342ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<FunctionDecl>(d)) { 2343ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2344883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2345ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2346ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2347ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2348ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDAHostAttr(Attr.getLoc(), S.Context)); 2349ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2350ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; 2351ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2352ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2353ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2354ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleSharedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2355ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2356ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2357ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2358ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2359ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2360ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2361ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2362ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<VarDecl>(d)) { 2363ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2364883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2365ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2366ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2367ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2368ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDASharedAttr(Attr.getLoc(), S.Context)); 2369ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2370ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; 2371ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2372ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2373ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2374cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 237526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 237626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 237726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 237826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 237926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2380bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2381c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 2382c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 238326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2384883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 238526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 238626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2387bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23880130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 2389cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 2390c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 2391c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 2392bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2393cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) GNUInlineAttr(Attr.getLoc(), S.Context)); 239426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 239526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 2396711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void HandleCallConvAttr(Decl *d, const AttributeList &attr, Sema &S) { 2397711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (hasDeclarator(d)) return; 2398711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2399711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnostic is emitted elsewhere: here we store the (valid) attr 2400e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 2401711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 2402711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 2403711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2404e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2405711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!isa<ObjCMethodDecl>(d)) { 2406711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2407883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 2408711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2409711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2410711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2411711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 2412e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 2413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) FastCallAttr(attr.getLoc(), S.Context)); 2414e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2415e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 2416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) StdCallAttr(attr.getLoc(), S.Context)); 2417e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2418f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 2419711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) ThisCallAttr(attr.getLoc(), S.Context)); 242004633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 2421e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 2422711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) CDeclAttr(attr.getLoc(), S.Context)); 2423e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 242452fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2425711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) PascalAttr(attr.getLoc(), S.Context)); 242652fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 2427e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 2428e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 2429e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2430e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 2431e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 2432e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2433f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbournestatic void HandleOpenCLKernelAttr(Decl *d, const AttributeList &Attr, Sema &S){ 2434f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne assert(Attr.isInvalid() == false); 2435f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne d->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getLoc(), S.Context)); 2436f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne} 2437f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 2438711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { 2439711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2440711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2441711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2442711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 2443711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2444711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2445711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2446ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 244755d3aaf9a537888734762170823daf750ea9036dEli Friedman 2448711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // TODO: diagnose uses of these conventions on the wrong target. 2449711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 2450711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 2451711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 2452711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 2453711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; 2454711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: CC = CC_X86Pascal; break; 2455711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: llvm_unreachable("unexpected attribute kind"); return true; 2456711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2457711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2458711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2459711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 2460711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2461711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void HandleRegparmAttr(Decl *d, const AttributeList &attr, Sema &S) { 2462711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (hasDeclarator(d)) return; 2463711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned numParams; 2465711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, numParams)) 2466711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2467711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2468711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!isa<ObjCMethodDecl>(d)) { 2469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2470883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 2471ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2472ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 247355d3aaf9a537888734762170823daf750ea9036dEli Friedman 2474711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) RegparmAttr(attr.getLoc(), S.Context, numParams)); 2475711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 2476711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2477711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Checks a regparm attribute, returning true if it is ill-formed and 2478711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// otherwise setting numParams to the appropriate value. 2479711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckRegparmAttr(const AttributeList &attr, unsigned &numParams) { 2480711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2481711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2482711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2483711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 1) { 2484711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2485711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2486711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2487711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2488711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2489711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Expr *NumParamsExpr = attr.getArg(0); 249055d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 2491ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 2492711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { 2493711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_argument_not_int) 249455d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 2495711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2496711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 249755d3aaf9a537888734762170823daf750ea9036dEli Friedman } 249855d3aaf9a537888734762170823daf750ea9036dEli Friedman 2499711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (Context.Target.getRegParmMax() == 0) { 2500711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 250155d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 2502711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2503711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 250455d3aaf9a537888734762170823daf750ea9036dEli Friedman } 250555d3aaf9a537888734762170823daf750ea9036dEli Friedman 2506711c52bb20d0c69063b52a99826fb7d2835501f1John McCall numParams = NumParams.getZExtValue(); 2507711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (numParams > Context.Target.getRegParmMax()) { 2508711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_regparm_invalid_number) 2509711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 2510711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2511711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 251255d3aaf9a537888734762170823daf750ea9036dEli Friedman } 251355d3aaf9a537888734762170823daf750ea9036dEli Friedman 2514711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2515ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 2516ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 25177b381985353304a7723acb05911ff91634fa1f27Peter Collingbournestatic void HandleLaunchBoundsAttr(Decl *d, const AttributeList &Attr, Sema &S){ 25187b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (S.LangOpts.CUDA) { 25197b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne // check the attribute arguments. 25207b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { 2521bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall // FIXME: 0 is not okay. 2522bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 25237b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 25247b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 25257b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 25267b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (!isFunctionOrMethod(d)) { 25277b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2528883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 25297b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 25307b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 25317b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 25327b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MaxThreadsExpr = Attr.getArg(0); 25337b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MaxThreads(32); 25347b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MaxThreadsExpr->isTypeDependent() || 25357b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreadsExpr->isValueDependent() || 25367b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { 25377b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 25387b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); 25397b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 25407b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 25417b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 25427b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MinBlocks(32); 25437b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() > 1) { 25447b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MinBlocksExpr = Attr.getArg(1); 25457b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MinBlocksExpr->isTypeDependent() || 25467b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocksExpr->isValueDependent() || 25477b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { 25487b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 25497b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); 25507b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 25517b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 25527b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 25537b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 25547b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne d->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getLoc(), S.Context, 25557b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreads.getZExtValue(), 25567b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocks.getZExtValue())); 25577b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } else { 25587b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; 25597b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 25607b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne} 25617b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 25620744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 2563b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 2564b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 2565b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2566c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { 2567c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return type->isObjCObjectPointerType() || S.Context.isObjCNSObjectType(type); 2568c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2569c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { 2570c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return type->isPointerType() || isValidSubjectOfNSAttribute(S, type); 2571c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2572c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2573c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic void HandleNSConsumedAttr(Decl *d, const AttributeList &attr, Sema &S) { 2574c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall ParmVarDecl *param = dyn_cast<ParmVarDecl>(d); 2575c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!param) { 2576c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 2577883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << SourceRange(attr.getLoc()) << attr.getName() << ExpectedParameter; 2578c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 2579c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2580c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2581c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK, cf; 2582c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (attr.getKind() == AttributeList::AT_ns_consumed) { 2583c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, param->getType()); 2584c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 2585c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } else { 2586c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, param->getType()); 2587c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 2588c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2589c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2590c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 2591c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) 2592c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall << SourceRange(attr.getLoc()) << attr.getName() << cf; 2593c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 2594c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2595c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2596c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (cf) 2597c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall param->addAttr(::new (S.Context) CFConsumedAttr(attr.getLoc(), S.Context)); 2598c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall else 2599c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall param->addAttr(::new (S.Context) NSConsumedAttr(attr.getLoc(), S.Context)); 2600c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2601c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2602c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic void HandleNSConsumesSelfAttr(Decl *d, const AttributeList &attr, 2603c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall Sema &S) { 2604c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!isa<ObjCMethodDecl>(d)) { 2605c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 2606883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << SourceRange(attr.getLoc()) << attr.getName() << ExpectedMethod; 2607c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 2608c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2609c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2610c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) NSConsumesSelfAttr(attr.getLoc(), S.Context)); 2611c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2612c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2613c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &attr, 2614b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 2615b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2616c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall QualType returnType; 2617bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 26185dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 2619c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = MD->getResultType(); 26205dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 2621c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = FD->getResultType(); 26225dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 262321531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 2624c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall << SourceRange(attr.getLoc()) << attr.getName() 2625883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedFunctionOrMethod; 2626b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2627b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 2628bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2629c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK; 2630c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool cf; 2631c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall switch (attr.getKind()) { 2632c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall default: llvm_unreachable("invalid ownership attribute"); return; 2633c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 2634c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_retained: 2635c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_not_retained: 2636c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, returnType); 2637c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 2638c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 2639c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2640c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_retained: 2641c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_not_retained: 2642c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, returnType); 2643c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 2644c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 2645c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2646c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2647c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 264821531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 2649c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall << SourceRange(attr.getLoc()) 2650c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall << attr.getName() << isa<ObjCMethodDecl>(d) << cf; 2651bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 26525dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 2653bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2654c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall switch (attr.getKind()) { 2655b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 2656b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 2657b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2658c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 2659c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(attr.getLoc(), 2660c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Context)); 2661c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 266231c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2663c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(attr.getLoc(), 2664f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 266531c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 266631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 2667c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(attr.getLoc(), 2668f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 266931c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 2670b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2671c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) CFReturnsRetainedAttr(attr.getLoc(), 2672f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 2673b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2674b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2675c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) NSReturnsRetainedAttr(attr.getLoc(), 2676f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 2677b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2678b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 2679b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 2680b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2681f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 2682f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 268311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_dllexport || 268411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_uuid; 268511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet} 268611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 268711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 268811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet// Microsoft specific attribute handlers. 268911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 269011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 269111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichetstatic void HandleUuidAttr(Decl *d, const AttributeList &Attr, Sema &S) { 269211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet if (S.LangOpts.Microsoft || S.LangOpts.Borland) { 269311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet // check the attribute arguments. 269411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet if (Attr.getNumArgs() != 1) { 269511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 269611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet return; 269711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet } 269811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Expr *Arg = Attr.getArg(0); 269911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 2700d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (Str == 0 || Str->isWide()) { 2701d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 2702d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet << "uuid" << 1; 2703d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2704d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2705d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2706d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet llvm::StringRef StrRef = Str->getString(); 2707d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2708d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && 2709d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet StrRef.back() == '}'; 2710d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2711d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // Validate GUID length. 2712d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (IsCurly && StrRef.size() != 38) { 2713d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2714d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2715d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2716d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (!IsCurly && StrRef.size() != 36) { 2717d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2718d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2719d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2720d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2721d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or 2722d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" 2723f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson llvm::StringRef::iterator I = StrRef.begin(); 2724f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson if (IsCurly) // Skip the optional '{' 2725f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson ++I; 2726f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson 2727f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson for (int i = 0; i < 36; ++i) { 2728d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (i == 8 || i == 13 || i == 18 || i == 23) { 2729d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (*I != '-') { 2730d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2731d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2732d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2733d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else if (!isxdigit(*I)) { 2734d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2735d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2736d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2737d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet I++; 2738d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 273911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 274011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet d->addAttr(::new (S.Context) UuidAttr(Attr.getLoc(), S.Context, 274111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Str->getString())); 2742d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else 274311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; 2744f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 2745f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 2746b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 27470744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 27480744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 27490744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 275060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournestatic void ProcessNonInheritableDeclAttr(Scope *scope, Decl *D, 275160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList &Attr, Sema &S) { 275260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne switch (Attr.getKind()) { 275360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: HandleDeviceAttr (D, Attr, S); break; 275460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: HandleHostAttr (D, Attr, S); break; 275560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 275660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne default: 275760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 275860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne } 275960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 2760e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 276160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournestatic void ProcessInheritableDeclAttr(Scope *scope, Decl *D, 276260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList &Attr, Sema &S) { 2763803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 276463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek case AttributeList::AT_IBAction: HandleIBAction(D, Attr, S); break; 2765857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutlet: HandleIBOutlet(D, Attr, S); break; 2766857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 2767857e918a8a40deb128840308a318bf623d68295fTed Kremenek HandleIBOutletCollection(D, Attr, S); break; 2768803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 2769207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case AttributeList::AT_opencl_image_access: 2770ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 27716e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 27724211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 27734211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 2774bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 2775bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 2776803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 277760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: 277860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: 277960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable: 278060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // Ignore, this is a non-inheritable attribute, handled 278160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // by ProcessNonInheritableDeclAttr. 278260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 27837725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 27847725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 2785bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 2786af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 2787b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 2788bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump HandleAnalyzerNoReturnAttr (D, Attr, S); break; 27897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 27900a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor case AttributeList::AT_availability:HandleAvailabilityAttr(D, Attr, S); break; 2791bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 27927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt HandleDependencyAttr (D, Attr, S); break; 2793a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher case AttributeList::AT_common: HandleCommonAttr (D, Attr, S); break; 2794ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne case AttributeList::AT_constant: HandleConstantAttr (D, Attr, S); break; 27957725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_constructor: HandleConstructorAttr (D, Attr, S); break; 27967725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_deprecated: HandleDeprecatedAttr (D, Attr, S); break; 27977725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_destructor: HandleDestructorAttr (D, Attr, S); break; 27983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 27999cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor HandleExtVectorTypeAttr(scope, D, Attr, S); 28003068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 28017725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 28027725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break; 2803ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne case AttributeList::AT_global: HandleGlobalAttr (D, Attr, S); break; 28047725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_gnu_inline: HandleGNUInlineAttr (D, Attr, S); break; 28057b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne case AttributeList::AT_launch_bounds: 28067b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne HandleLaunchBoundsAttr(D, Attr, S); 28077b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne break; 28087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 28097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_malloc: HandleMallocAttr (D, Attr, S); break; 281034c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman case AttributeList::AT_may_alias: HandleMayAliasAttr (D, Attr, S); break; 2811a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher case AttributeList::AT_nocommon: HandleNoCommonAttr (D, Attr, S); break; 28127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 2813dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 2814dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 2815dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 2816dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek HandleOwnershipAttr (D, Attr, S); break; 2817dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar case AttributeList::AT_naked: HandleNakedAttr (D, Attr, S); break; 28187725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 28197725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 2820ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne case AttributeList::AT_shared: HandleSharedAttr (D, Attr, S); break; 282135cc9627340b15232139b3c43fcde5973e7fad30John Thompson case AttributeList::AT_vecreturn: HandleVecReturnAttr (D, Attr, S); break; 2822b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2823b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 2824c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_consumed: 2825c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_consumed: HandleNSConsumedAttr (D, Attr, S); break; 2826c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_consumes_self: 2827c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall HandleNSConsumesSelfAttr(D, Attr, S); break; 2828c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2829c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 283031c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 283131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2832b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2833b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2834b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 2835b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 28366f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 28376f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman HandleReqdWorkGroupSize(D, Attr, S); break; 28386f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 2839521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 2840521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian HandleInitPriorityAttr(D, Attr, S); break; 2841521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 28427725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 28437725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 28447725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unavailable: HandleUnavailableAttr (D, Attr, S); break; 28457725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 28467725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 28477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_visibility: HandleVisibilityAttr (D, Attr, S); break; 2848026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 2849026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 28507725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 285111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola case AttributeList::AT_weakref: HandleWeakRefAttr (D, Attr, S); break; 28527725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak_import: HandleWeakImportAttr (D, Attr, S); break; 2853803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 2854803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 2855803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 28560db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 28570db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 28580db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 2859d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall case AttributeList::AT_objc_method_family: 2860d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall HandleObjCMethodFamilyAttr(D, Attr, S); 2861d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall break; 28627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 28637725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 28647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 28657725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 28667725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 28677725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 28687725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nodebug: HandleNoDebugAttr (D, Attr, S); break; 28697725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noinline: HandleNoInlineAttr (D, Attr, S); break; 28707725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 2871bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 287205f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 287305f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 28747255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 28757255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner HandleNoInstrumentFunctionAttr(D, Attr, S); 28767255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 287704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 287804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 287904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 2880f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 288152fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2882e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara HandleCallConvAttr(D, Attr, S); 288304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 2884f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne case AttributeList::AT_opencl_kernel_function: 2885f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne HandleOpenCLKernelAttr(D, Attr, S); 2886f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne break; 288711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet case AttributeList::AT_uuid: 288811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet HandleUuidAttr(D, Attr, S); 288911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet break; 2890803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 289182d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 289282d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 289382d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 28947d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 28957d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 2896803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 2897803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2898803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2899803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 290060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 290160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the attribute applies to decls. If the attribute is a type attribute, just 290260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 290360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 290460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournestatic void ProcessDeclAttribute(Scope *scope, Decl *D, 290560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList &Attr, Sema &S, 290660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 290760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isInvalid()) 290860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 290960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 291060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 291160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // FIXME: Try to deal with other __declspec attributes! 291260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 291360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 291460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (NonInheritable) 291560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessNonInheritableDeclAttr(scope, D, Attr, S); 291660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 291760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable) 291860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessInheritableDeclAttr(scope, D, Attr, S); 291960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 292060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 2921803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 2922803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 2923f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christophervoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, 292460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList *AttrList, 292560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 292611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 292760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttribute(S, D, *l, *this, NonInheritable, Inheritable); 292811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 292911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 293011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 293111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 293211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 293360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 293411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 2935dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 293611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 2937803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2938803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2939803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2940e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 2941e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 29421eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II) { 29437b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 2944e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 2945e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 2946e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 2947ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara FD->getInnerLocStart(), 2948e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn FD->getLocation(), DeclarationName(II), 2949a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FD->getType(), FD->getTypeSourceInfo()); 2950b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (FD->getQualifier()) { 2951b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall FunctionDecl *NewFD = cast<FunctionDecl>(NewD); 2952c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewFD->setQualifierInfo(FD->getQualifierLoc()); 2953b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2954e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 2955e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 2956ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara VD->getInnerLocStart(), VD->getLocation(), II, 2957a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 295816573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 295916573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 2960b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 2961b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 2962c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewVD->setQualifierInfo(VD->getQualifierLoc()); 2963b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2964e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2965e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 2966e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2967e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 2968e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 2969e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 29707b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 2971c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 2972c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 2973c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 2974c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 2975c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias()); 2976cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 2977cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 2978cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2979c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 2980c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 2981c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 2982c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 2983c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 2984c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 2985c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 2986c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 2987cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2988e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2989e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2990e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 29910744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 29920744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 29930744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 299460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournevoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, 299560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 2996d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // It's valid to "forward-declare" #pragma weak, in which case we 2997d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // have to do this. 299860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && !WeakUndeclaredIdentifiers.empty()) { 2999d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 3000d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (IdentifierInfo *Id = ND->getIdentifier()) { 3001d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I 3002d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall = WeakUndeclaredIdentifiers.find(Id); 3003d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { 3004d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall WeakInfo W = I->second; 3005d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall DeclApplyPragmaWeak(S, ND, W); 3006d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall WeakUndeclaredIdentifiers[Id] = W; 3007d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall } 3008e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3009e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3010e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3011e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 30120744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 30137f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) 301460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 3015bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 30160744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 30170744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 30180744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 30190744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 30200744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 30210744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 302260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 3023bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 30240744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 30250744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 302660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 30270744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 302854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3029eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// This duplicates a vector push_back but hides the need to know the 3030eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// size of the type. 3031eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::add(const DelayedDiagnostic &diag) { 3032eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize <= StackCapacity); 3033eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3034eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Grow the stack if necessary. 3035eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackSize == StackCapacity) { 3036eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall unsigned newCapacity = 2 * StackCapacity + 2; 3037eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall char *newBuffer = new char[newCapacity * sizeof(DelayedDiagnostic)]; 3038eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall const char *oldBuffer = (const char*) Stack; 3039eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3040eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackCapacity) 3041eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall memcpy(newBuffer, oldBuffer, StackCapacity * sizeof(DelayedDiagnostic)); 3042eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3043eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall delete[] oldBuffer; 3044eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Stack = reinterpret_cast<sema::DelayedDiagnostic*>(newBuffer); 3045eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall StackCapacity = newCapacity; 3046eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall } 3047eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3048eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize < StackCapacity); 3049eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall new (&Stack[StackSize++]) DelayedDiagnostic(diag); 305054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 305154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3052eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::popParsingDecl(Sema &S, ParsingDeclState state, 3053eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Decl *decl) { 3054eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics &DD = S.DelayedDiagnostics; 305554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3056eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Check the invariants. 3057eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.StackSize >= state.SavedStackSize); 3058eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(state.SavedStackSize >= DD.ActiveStackBase); 3059eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.ParsingDepth > 0); 306054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3061eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Drop the parsing depth. 3062eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.ParsingDepth--; 306354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3064eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // If there are no active diagnostics, we're done. 3065eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DD.StackSize == DD.ActiveStackBase) 3066eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall return; 306758e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 30682f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 30692f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 3070eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (decl) { 3071eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // We emit all the active diagnostics, not just those starting 3072eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // from the saved state. The idea is this: we get one push for a 30732f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 30742f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 30752f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 30762f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 30772f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 3078eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = DD.ActiveStackBase, e = DD.StackSize; i != e; ++i) { 3079eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostic &diag = DD.Stack[i]; 3080eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (diag.Triggered) 30812f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 30822f514480c448708ec382a684cf5e035d3a827ec8John McCall 3083eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall switch (diag.Kind) { 30842f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 3085eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedDeprecationCheck(diag, decl); 30862f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 30872f514480c448708ec382a684cf5e035d3a827ec8John McCall 30882f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 3089eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedAccessCheck(diag, decl); 30902f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 309154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 309254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 309354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 309454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 309558e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 3096eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = state.SavedStackSize, e = DD.StackSize; i != e; ++i) 3097eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.Stack[i].destroy(); 309858e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 3099eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.StackSize = state.SavedStackSize; 31002f514480c448708ec382a684cf5e035d3a827ec8John McCall} 31012f514480c448708ec382a684cf5e035d3a827ec8John McCall 31022f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 31032f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 31040a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (D->isDeprecated()) 31052f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 31062f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 31072f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 31082f514480c448708ec382a684cf5e035d3a827ec8John McCall} 31092f514480c448708ec382a684cf5e035d3a827ec8John McCall 31109c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 31112f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 31122f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 31132f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 31142f514480c448708ec382a684cf5e035d3a827ec8John McCall 31152f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 3116ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!DD.getDeprecationMessage().empty()) 3117c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_message) 3118ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName() 3119ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationMessage(); 3120c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 3121c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated) 3122ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName(); 312354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 312454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3125ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramervoid Sema::EmitDeprecationWarning(NamedDecl *D, llvm::StringRef Message, 31268e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian SourceLocation Loc, 3127743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne bool UnknownObjCClass) { 312854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 3129eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DelayedDiagnostics.shouldDelayDiagnostics()) { 3130eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, Message)); 313154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 313254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 313354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 313454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 313554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 313654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 3137ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!Message.empty()) 3138c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() 3139c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian << Message; 31408e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else { 3141743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne if (!UnknownObjCClass) 31428e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 31438e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else 31448e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); 31458e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian } 314654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 3147