SemaDeclAttr.cpp revision f89e0424b8903438179f4a2f16dddd5e5bdc814e
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 27e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 28e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 29e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 30e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 31a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic const FunctionType *getFunctionType(const Decl *d, 32a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 34a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek if (const ValueDecl *decl = dyn_cast<ValueDecl>(d)) 356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 36a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const FieldDecl *decl = dyn_cast<FieldDecl>(d)) 376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 38a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const TypedefDecl* decl = dyn_cast<TypedefDecl>(d)) 396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 42bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 446217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 45755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 466217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 47d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 48183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 513568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 523568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 533568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 54d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 55a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 56a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunction(const Decl *d) { 57a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return getFunctionType(d, false) != NULL; 58a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 59a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 60a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 61d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 62d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 63a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethod(const Decl *d) { 64a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return isFunction(d)|| isa<ObjCMethodDecl>(d); 65d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 663568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 67620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 68620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 69620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 70a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodOrBlock(const Decl *d) { 71620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (isFunctionOrMethod(d)) 72620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 73620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 74620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 75620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 76620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 77620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 78d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return isa<BlockDecl>(d); 79620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 80620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 81711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Return true if the given decl has a declarator that should have 82711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// been processed by Sema::GetTypeForDeclarator. 83711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool hasDeclarator(const Decl *d) { 84711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. 85711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return isa<DeclaratorDecl>(d) || isa<BlockDecl>(d) || isa<TypedefDecl>(d); 86711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 87711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 88d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 89d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 90620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 91a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool hasFunctionProto(const Decl *d) { 92620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 9372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 94620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 95d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian assert(isa<ObjCMethodDecl>(d) || isa<BlockDecl>(d)); 96d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 97d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 983568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 993568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 100d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 101d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 102d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 103a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic unsigned getFunctionOrMethodNumArgs(const Decl *d) { 10489951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 10572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 106d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 107d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 10889951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_size(); 1093568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1103568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 111a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodArgType(const Decl *d, unsigned Idx) { 11289951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 11372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 114d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 115d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 116bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11789951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_begin()[Idx]->getType(); 1183568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1193568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 120a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodResultType(const Decl *d) { 1215b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 1225b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 1235b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<ObjCMethodDecl>(d)->getResultType(); 1245b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1255b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 126a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodVariadic(const Decl *d) { 127d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 12872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1293568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 130d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 131db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 132d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 1333568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 1343568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1353568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1363568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 13707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruthstatic bool isInstanceMethod(const Decl *d) { 13807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(d)) 13907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return MethodDecl->isInstance(); 14007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return false; 14107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth} 14207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 144183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 145b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 147bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 148506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 149506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 151bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 152506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 153bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 159085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1606217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 161085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 162085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 163085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1646217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 165085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 166085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 167bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 168085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 169465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 170085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 171085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 172085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 173085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 174085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 175e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 176e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 177e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 178e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1793068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 1803068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 1813068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 1823068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 183bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleExtVectorTypeAttr(Scope *scope, Decl *d, 1849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor const AttributeList &Attr, Sema &S) { 185545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 186545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 187803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 188545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 1896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 190bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 1929cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1939cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 1949cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 1959cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 1969cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 197f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 198f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 199f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 200f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall sizeExpr = S.ActOnIdExpression(scope, SS, id, false, false).takeAs<Expr>(); 2019cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 2029cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 2039cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getNumArgs() != 1) { 2049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2059cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 2069cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 2077a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne sizeExpr = Attr.getArg(0); 2086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2099cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2109cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 2119cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 2129ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 2139cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 214ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 215a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 216bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2179cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 2189cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 2196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 222803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 224545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2253c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 228bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 230cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt TD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 235803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 236fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 23708631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 239cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt FD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2413c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 24463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBAction(Decl *d, const AttributeList &Attr, Sema &S) { 24596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 24696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2473c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 24896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 24996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 250bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 25163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 25263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 25363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 254cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBActionAttr(Attr.getLoc(), S.Context)); 25563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 25663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 25763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 25863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_ibaction) << Attr.getName(); 25963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 26063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 26163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBOutlet(Decl *d, const AttributeList &Attr, Sema &S) { 26263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 26363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (Attr.getNumArgs() > 0) { 26463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 26563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 26663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 26763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 26863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBOutlet attributes only apply to instance variables of 269efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek // Objective-C classes. 270efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek if (isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d)) { 271cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletAttr(Attr.getLoc(), S.Context)); 27263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 273efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek } 27463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 27563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet) << Attr.getName(); 27696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 27796329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 278857e918a8a40deb128840308a318bf623d68295fTed Kremenekstatic void HandleIBOutletCollection(Decl *d, const AttributeList &Attr, 279857e918a8a40deb128840308a318bf623d68295fTed Kremenek Sema &S) { 280857e918a8a40deb128840308a318bf623d68295fTed Kremenek 281857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 282a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 283857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 284857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 285857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 286857e918a8a40deb128840308a318bf623d68295fTed Kremenek 287857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The IBOutletCollection attributes only apply to instance variables of 288857e918a8a40deb128840308a318bf623d68295fTed Kremenek // Objective-C classes. 289857e918a8a40deb128840308a318bf623d68295fTed Kremenek if (!(isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d))) { 290857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet) << Attr.getName(); 291857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 292857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 2933a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ValueDecl *VD = dyn_cast<ValueDecl>(d)) 2943a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 2953a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 2963a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << VD->getType() << 0; 2973a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 2983a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 2993a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(d)) 3003a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 3013a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 3023a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << PD->getType() << 1; 3033a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 3043a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 3053a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 306a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 307a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 308a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 3093a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 310b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 311a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.getScopeForContext(d->getDeclContext()->getParent())); 312a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 313a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 314a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 315a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 316b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 317a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 318a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 319a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 320a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 321a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 322a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 323a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 324a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 325a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 326cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getLoc(), S.Context, 327cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt QT)); 328857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 329857e918a8a40deb128840308a318bf623d68295fTed Kremenek 330eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 331bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 332bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 333d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 334fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3355dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 336eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 337eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 338bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 33907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 34007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 34107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 34207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 343eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 344eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 345eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 346bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 347eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 348eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 349bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 350bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 351eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 3527a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Ex = *I; 353eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 354ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 355ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 356fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 357fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 358eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 359eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 360bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 361eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 362bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 363eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 364fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 36530bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 366eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 367eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 368bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 369465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 37007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 37107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 37207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 37307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_attribute_invalid_implicit_this_argument) 37407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "nonnull" << Ex->getSourceRange(); 37507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 37607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 37707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 37807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 379eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 380eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 381de43632a5951abf3f357e2f79dcddda4dc6ec8ffDouglas Gregor QualType T = getFunctionOrMethodArgType(d, x).getNonReferenceType(); 382dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 383eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 384c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 385fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3867fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 387eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 388bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 389eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 390eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 391bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 392bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 393bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 3947fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 39546bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 396de43632a5951abf3f357e2f79dcddda4dc6ec8ffDouglas Gregor QualType T = getFunctionOrMethodArgType(d, I).getNonReferenceType(); 397dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 398d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 399ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian else if (const RecordType *UT = T->getAsUnionType()) { 400ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { 401ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian RecordDecl *UD = UT->getDecl(); 402ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian for (RecordDecl::field_iterator it = UD->field_begin(), 403ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian itend = UD->field_end(); it != itend; ++it) { 404ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian T = it->getType(); 405ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian if (T->isAnyPointerType() || T->isBlockPointerType()) { 406ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian NonNullArgs.push_back(I); 407ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian break; 408ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 409ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 410ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 411ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 41246bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 413bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 414ee1c08c88649aaea9dd53272a726cd23de533215Ted Kremenek // No pointer arguments? 41560acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 41660acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 41760acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 41860acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 41960acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 4207fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 42160acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 422eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 4237fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 4247fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 4257fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 426dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 427cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NonNullAttr(Attr.getLoc(), S.Context, start, 428cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 429eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 430eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 431dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenekstatic void HandleOwnershipAttr(Decl *d, const AttributeList &AL, Sema &S) { 432dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 433dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 434dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 435dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 436dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 437dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 4382a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 4392a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 440dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 441dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 442dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 443dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 444dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 445dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 446dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 447cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 4482a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 4492a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 450cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 451dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 452dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 453dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 454dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4552a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4562a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 457cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 458dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 459dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 460dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 461dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4622a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4632a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 464cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 465dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 466dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 467dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 468dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 469dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4702a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4712a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4722a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 4732a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 474dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 475dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 476dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!isFunction(d) || !hasFunctionProto(d)) { 477dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) << AL.getName() 478dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << 0 /*function*/; 479dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 480dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 481dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 48207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 48307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 48407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 48507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 486dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 487dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::StringRef Module = AL.getParameterName()->getName(); 488dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 489dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 490dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 491dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 492dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 493dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::SmallVector<unsigned, 10> OwnershipArgs; 494dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 4952a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 4962a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 497dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 4987a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = *I; 499dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 500dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 501dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 502dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 503dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 504dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 505dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 506dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 507dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 508dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 509dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 510dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 511dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 512dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 513dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 514dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 51507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 51607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 51707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 51807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "ownership" << IdxExpr->getSourceRange(); 51907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 52007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 52107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 52207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 52307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 524dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 525cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 526cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 527dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 528dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek QualType T = getFunctionOrMethodArgType(d, x); 529dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 530dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 531dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 532cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 533dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 534dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 535dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 536dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 537dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 538dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 539cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 540dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 541dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 5427a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = AL.getArg(0); 543dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 544dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 545dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 546dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 547dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 548dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 549dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 550dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 551dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 552dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 553dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5542a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 5552a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 556dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 557dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 558dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 559cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 560cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i = d->specific_attr_begin<OwnershipAttr>(), 561cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt e = d->specific_attr_end<OwnershipAttr>(); 562cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 563cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 564cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 565cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 566cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 567cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 568cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 569dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 570dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 571dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 572dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 573dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 574dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 575dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 576dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 577dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 578dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 579cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 580cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 581cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 582cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 583dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 584cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 585cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 586cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 587dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 588dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 589a96022c365a183f89ea81fa3f294ee7f436556b9Peter Collingbournestatic bool isStaticVarOrStaticFunction(Decl *D) { 59011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (VarDecl *VD = dyn_cast<VarDecl>(D)) 591d931b086984257de68868a64a235c2b4b34003fbJohn McCall return VD->getStorageClass() == SC_Static; 59211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 593d931b086984257de68868a64a235c2b4b34003fbJohn McCall return FD->getStorageClass() == SC_Static; 59411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 59511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 59611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 59711e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic void HandleWeakRefAttr(Decl *d, const AttributeList &Attr, Sema &S) { 59811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 59911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 60011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 60111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 60211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 60311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 60411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 60511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 60611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 60711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 60811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 60911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 61011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 61111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 61211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 61311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 6147a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl const DeclContext *Ctx = d->getDeclContext()->getRedeclContext(); 6157a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 6167a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 6177a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl dyn_cast<NamedDecl>(d)->getNameAsString(); 6187a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 61911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 62011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 62111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 62211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 62311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 62411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 62511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 62611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 62711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 62811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 62911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 63011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 63111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 63211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 63311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 63411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 63511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 63611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 63711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 63811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 639a96022c365a183f89ea81fa3f294ee7f436556b9Peter Collingbourne if (!isStaticVarOrStaticFunction(d)) { 64011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static) << 64111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola dyn_cast<NamedDecl>(d)->getNameAsString(); 64211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 64311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 64411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 64511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 64611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 64711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 64811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 64911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 6507a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 65111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 65211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 65311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 65411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Str == 0 || Str->isWide()) { 65511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 65611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 65711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 65811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 65911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 66011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 661f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, 662f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 66311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 66411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 665cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) WeakRefAttr(Attr.getLoc(), S.Context)); 66611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 66711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 668803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 670545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 6713c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 674bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6757a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 6766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 6776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 678bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 6796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 680fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 6826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 6836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 684bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 685f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola if (S.Context.Target.getTriple().getOS() == llvm::Triple::Darwin) { 686f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); 687f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola return; 688f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola } 689f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola 6906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 691bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 692f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, 693f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 6946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 6956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 696dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbarstatic void HandleNakedAttr(Decl *d, const AttributeList &Attr, 697dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar Sema &S) { 698dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 699dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar if (Attr.getNumArgs() != 0) { 700dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 701dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 702dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 703dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 704dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar if (!isa<FunctionDecl>(d)) { 705dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 706dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar << Attr.getName() << 0 /*function*/; 707dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 708dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 709dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 710dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar d->addAttr(::new (S.Context) NakedAttr(Attr.getLoc(), S.Context)); 711dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar} 712dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 713bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 714af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 715dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 716af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 7173c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 718af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 719af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 7205bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 721c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 7225bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 723dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar << Attr.getName() << 0 /*function*/; 7245bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 7255bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 726bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 727cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getLoc(), S.Context)); 728af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 729af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 73076168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynnstatic void HandleMallocAttr(Decl *d, const AttributeList &Attr, Sema &S) { 731dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 73276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn if (Attr.getNumArgs() != 0) { 73376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 73476168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 73576168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 7361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7372cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 7381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 7392cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 740cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) MallocAttr(Attr.getLoc(), S.Context)); 7412cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 7422cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 743fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 744fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 7452cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 74676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 74776168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 74834c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohmanstatic void HandleMayAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 74934c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman // check the attribute arguments. 75034c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman if (Attr.getNumArgs() != 0) { 75134c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 75234c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman return; 75334c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman } 75434c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 75534c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman d->addAttr(::new (S.Context) MayAliasAttr(Attr.getLoc(), S.Context)); 75634c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman} 75734c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 758a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopherstatic void HandleNoCommonAttr(Decl *d, const AttributeList &Attr, Sema &S) { 759a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher assert(Attr.isInvalid() == false); 760722109c1b7718d3e8aab075ce65007b372822199Eric Christopher if (isa<VarDecl>(d)) 761722109c1b7718d3e8aab075ce65007b372822199Eric Christopher d->addAttr(::new (S.Context) NoCommonAttr(Attr.getLoc(), S.Context)); 762722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 763722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 764722109c1b7718d3e8aab075ce65007b372822199Eric Christopher << Attr.getName() << 12 /* variable */; 765a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 766a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 767a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopherstatic void HandleCommonAttr(Decl *d, const AttributeList &Attr, Sema &S) { 768a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher assert(Attr.isInvalid() == false); 769722109c1b7718d3e8aab075ce65007b372822199Eric Christopher if (isa<VarDecl>(d)) 770722109c1b7718d3e8aab075ce65007b372822199Eric Christopher d->addAttr(::new (S.Context) CommonAttr(Attr.getLoc(), S.Context)); 771722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 772722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 773722109c1b7718d3e8aab075ce65007b372822199Eric Christopher << Attr.getName() << 12 /* variable */; 774a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 775a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 776711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void HandleNoReturnAttr(Decl *d, const AttributeList &attr, Sema &S) { 777711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (hasDeclarator(d)) return; 778711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 779711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) return; 780711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 781711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!isa<ObjCMethodDecl>(d)) { 782711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 783711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << attr.getName() << 0 /*function*/; 784711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 785711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 786711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 787711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) NoReturnAttr(attr.getLoc(), S.Context)); 788711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 789711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 790711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckNoReturnAttr(const AttributeList &attr) { 791711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 792711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 793711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 794711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 795711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 796711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 797711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 798b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 799b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 800b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 801b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek Sema &S) { 802b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 803b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 804b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 805b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 806545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 807e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 808b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 8096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 810b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 81119c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 81219c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 8133ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 8143ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 815e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 816e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 817b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 818b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek << Attr.getName() << 0 /*function*/; 819b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 82019c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 8216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 822b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 823b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek d->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getLoc(), S.Context)); 8246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 82635cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 82735cc9627340b15232139b3c43fcde5973e7fad30John Thompsonstatic void HandleVecReturnAttr(Decl *d, const AttributeList &Attr, 82835cc9627340b15232139b3c43fcde5973e7fad30John Thompson Sema &S) { 82935cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 83035cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 83135cc9627340b15232139b3c43fcde5973e7fad30John Thompson 832f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher According to the PPU ABI specifications, a class with a single member of 833f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher vector type is returned in memory when used as the return value of a function. 834f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher This results in inefficient code when implementing vector classes. To return 835f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher the value in a single vector register, add the vecreturn attribute to the 836f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher class definition. This attribute is also applicable to struct types. 83735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 83835cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 83935cc9627340b15232139b3c43fcde5973e7fad30John Thompson 84035cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 84135cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 84235cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 84335cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 84435cc9627340b15232139b3c43fcde5973e7fad30John Thompson 84535cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 84635cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 84735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 84835cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 84935cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 85035cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 85135cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 85201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<RecordDecl>(d)) { 85335cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 85435cc9627340b15232139b3c43fcde5973e7fad30John Thompson << Attr.getName() << 9 /*class*/; 85535cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 85635cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 85735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 85835cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (d->getAttr<VecReturnAttr>()) { 85935cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 86035cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 86135cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 86235cc9627340b15232139b3c43fcde5973e7fad30John Thompson 86301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson RecordDecl *record = cast<RecordDecl>(d); 86401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 86501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 86601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 86701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 86801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 86901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 87001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 87101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 87201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 87301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 87401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 87501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 876f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher for (RecordDecl::field_iterator iter = record->field_begin(); 877f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher iter != record->field_end(); iter++) { 87801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 87901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 88001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 88101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 88201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 88301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 88401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 885cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VecReturnAttr(Attr.getLoc(), S.Context)); 88635cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 88735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 888bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleDependencyAttr(Decl *d, const AttributeList &Attr, Sema &S) { 889bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isFunctionOrMethod(d) && !isa<ParmVarDecl>(d)) { 890bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 89104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall << Attr.getName() << 8 /*function, method, or parameter*/; 892bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 893bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 894bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 895bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 896bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 89773798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 89873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 89973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 9003c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 90173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 90273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 903bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 904aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall if (!isa<VarDecl>(d) && !isa<ObjCIvarDecl>(d) && !isFunctionOrMethod(d) && 905aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall !isa<TypeDecl>(d)) { 906fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 9075dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 90873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 90973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 910bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 911cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UnusedAttr(Attr.getLoc(), S.Context)); 91273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 91373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 914b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 915b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 916b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 917b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 918b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 919b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 920bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 921b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 922186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 923b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 924b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 925b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 926b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 927b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 9285dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 929b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 930b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 931bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 932cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UsedAttr(Attr.getLoc(), S.Context)); 933b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 934b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 9353068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9363068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 9373068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 938fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 939fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 9403068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 941bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 9423068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 9433068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 9443068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 9457a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 9463068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 947ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 948ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 949fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 9503c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 9513068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 9523068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 9533068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 9543068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 955bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 956c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 957fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 9585dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 9593068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 9603068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 9613068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 962f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) ConstructorAttr(Attr.getLoc(), S.Context, 963f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 9643068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 9653068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 9663068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9673068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 9683068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 969fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 970fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 9713068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 972bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 9733068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 9743068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 9753068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 9767a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 9773068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 978ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 979ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 980fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 9813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 9823068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 9833068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 9843068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 9853068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 986bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 9876782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 988fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 9895dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 9903068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 9913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 9923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 993f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) DestructorAttr(Attr.getLoc(), S.Context, 994f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 9953068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 9963068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 997803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 999c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian int noArgs = Attr.getNumArgs(); 1000c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (noArgs > 1) { 1001c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian S.Diag(Attr.getLoc(), 1002c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian diag::err_attribute_wrong_number_arguments) << "0 or 1"; 1003c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1004c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1005c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian // Handle the case where deprecated attribute has a text message. 1006c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian StringLiteral *SE; 1007c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (noArgs == 1) { 10087a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1009c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian SE = dyn_cast<StringLiteral>(ArgExpr); 1010c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (!SE) { 1011c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian S.Diag(ArgExpr->getLocStart(), 1012c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian diag::err_attribute_not_string) << "deprecated"; 1013c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1014c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 10156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1016c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 1017c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian SE = StringLiteral::CreateEmpty(S.Context, 1); 1018bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1019c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian d->addAttr(::new (S.Context) DeprecatedAttr(Attr.getLoc(), S.Context, 1020c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian SE->getString())); 10216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 10226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1023bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1024bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 1025c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian int noArgs = Attr.getNumArgs(); 1026c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (noArgs > 1) { 1027f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Diag(Attr.getLoc(), 1028f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher diag::err_attribute_wrong_number_arguments) << "0 or 1"; 1029bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 1030bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 1031c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian // Handle the case where unavailable attribute has a text message. 1032c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian StringLiteral *SE; 1033c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (noArgs == 1) { 10347a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1035c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian SE = dyn_cast<StringLiteral>(ArgExpr); 1036c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (!SE) { 1037c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian S.Diag(ArgExpr->getLocStart(), 1038c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian diag::err_attribute_not_string) << "unavailable"; 1039c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian return; 1040c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1041c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1042c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian else 1043c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian SE = StringLiteral::CreateEmpty(S.Context, 1); 1044c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian d->addAttr(::new (S.Context) UnavailableAttr(Attr.getLoc(), S.Context, 1045c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian SE->getString())); 1046bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 1047bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 1048803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 10496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1050545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 10513c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 10526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1054bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10557a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 10566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 10576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1058bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 1060fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 10613c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 10626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1064bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1065c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer llvm::StringRef TypeStr = Str->getString(); 1066cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 1067bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1068c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 1069cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 1070c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 1071cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 1072c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 1073cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 1074c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 1075cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Protected; 10766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 107708631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 10786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1080bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1081cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VisibilityAttr(Attr.getLoc(), S.Context, type)); 10826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 10836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10840db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 10850db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 10860db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 10870db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 10880db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 10890db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1090bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10910db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 10920db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 10930db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 10940db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 10950db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1096bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1097cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getLoc(), S.Context)); 10980db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 10990db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 11000db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 1101fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 11022b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1103fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1104fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 11050db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 1106fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 1107fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 11086217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 1109fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 1110fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1111fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1112fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1113cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getLoc(), S.Context)); 1114fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 1115fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 1116bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 1117f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1118f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 11192b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1120f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1121f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1122f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1123f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 1124f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 1125f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1126f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1127f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1128cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) OverloadableAttr(Attr.getLoc(), S.Context)); 1129f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 1130f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 11319eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1132bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1133fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 11343c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 11359eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 11369eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1137bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11389eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 11393c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11409eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 11419eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1142bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1143cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 114492e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 11459eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 11469eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 1147fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 11483c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 11499eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 11509eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1151bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1152cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) BlocksAttr(Attr.getLoc(), S.Context, type)); 11539eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 11549eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 1155770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1156770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 1157770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 1158fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 1159fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 1160770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1161bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1162bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1163770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 1164770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 11657a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 1166770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1167ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1168ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1169fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 11703c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1171770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1172770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1173770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 1174bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1175770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 1176fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1177fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1178770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1179770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1180770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1181770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1182770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 1183770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 11847a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(1); 1185770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1186ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1187ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1188fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 11893c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1190770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1191770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1192770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1193bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1194770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 1195770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1196770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1197fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1198fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1199770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1200770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1201770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1202770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1203770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 1204183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = FD->getType()->getAs<FunctionType>(); 1205897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 1206bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1207897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1208897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1209897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1210897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1211bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1212897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 12133bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1214770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1215bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1216770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 1217770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 12183bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1219770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 12202f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 12212f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 1222bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1223bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 12242f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 12252f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 12262f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1227daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 1228bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 1229f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 12302f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 12313bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 12323bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 12332f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 12342f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1235ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 12362f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1237ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 12382f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 12392f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1240770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1241fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1242ffb0081d0c0509eb4884143381cb3e5a5f6947b4Fariborz Jahanian << Attr.getName() << 6 /*function, method or block */; 1243770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1244770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1245f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) SentinelAttr(Attr.getLoc(), S.Context, sentinel, 1246f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher nullPos)); 1247770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1248770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1249026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 1250026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 1251026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 1252026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1253026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1254026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1255026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1256f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1257026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 12585dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 1259026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1260026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1261bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1262f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1263f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1264f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1265f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1266f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1267f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1268f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1269f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1270f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1271f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1272f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1273f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1274cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getLoc(), S.Context)); 1275026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1276026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1277026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 12786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1279545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 12803c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12836e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1284f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian /* weak only applies to non-static declarations */ 1285a96022c365a183f89ea81fa3f294ee7f436556b9Peter Collingbourne if (isStaticVarOrStaticFunction(D)) { 1286f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_weak_static) << 1287f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian dyn_cast<NamedDecl>(D)->getNameAsString(); 1288f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1289f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1290f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 12916e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // TODO: could also be applied to methods? 12926e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 12936e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 12945dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 2 /*variable and function*/; 12956e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 12966e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1297bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1298cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakAttr(Attr.getLoc(), S.Context)); 12996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13016e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 13026e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 13036e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 13046e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 13056e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 1306bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 13076e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 13086e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 13096e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 13106e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 13116e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 13126e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 131306a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis isDef = FD->hasBody(); 1314d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian } else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D)) { 1315d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian // We ignore weak import on properties and methods 13161c90f4dc686ab872013544664c797604a309c563Mike Stump return; 13175f8f8571c52dbf12fdefb15d2fedbcccb212c15cFariborz Jahanian } else if (!(S.LangOpts.ObjCNonFragileABI && isa<ObjCInterfaceDecl>(D))) { 1318c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian // Don't issue the warning for darwin as target; yet, ignore the attribute. 13193be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian if (S.Context.Target.getTriple().getOS() != llvm::Triple::Darwin || 1320c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian !isa<ObjCInterfaceDecl>(D)) 1321c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 13223be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian << Attr.getName() << 2 /*variable and function*/; 13233be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian return; 13246e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 13256e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 13266e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 13276e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 1328bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 13296e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 13306e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 13316e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 13326e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 13336e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1334cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakImportAttr(Attr.getLoc(), S.Context)); 13356e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 13366e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 13376f3d838867538638b9bbf412028e8537ae12f3e5Nate Begemanstatic void HandleReqdWorkGroupSize(Decl *D, const AttributeList &Attr, 13386f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Sema &S) { 13396f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 13406f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 13412b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 13426f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 13436f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 13446f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 13456f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 13466f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 13477a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(i); 13486f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1349ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1350ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 13516f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 13526f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 13536f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 13546f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 13556f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 13566f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 1357cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getLoc(), S.Context, 1358cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 13596f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 13606f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 13616f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 1362026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 136317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 136417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 136517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 136617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 136717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 136817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 136917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 137017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 13717a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1372797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 137317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1374797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 137517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 137617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 13771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1378797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1379bb377edda2656752016a0bc01fe4f9f8b6f80e19Benjamin Kramer std::string Error = S.Context.Target.isValidSectionSpecifier(SE->getString()); 1380a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 1381a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 1382a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 1383797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 1384797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 13851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1386a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 1387a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 1388a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 1389a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 1390a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 1391a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 1392f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher D->addAttr(::new (S.Context) SectionAttr(Attr.getLoc(), S.Context, 1393f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 139417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 139517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 13966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1397803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 13986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1399545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 14003c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 14016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1403bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1404cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoThrowAttr(Attr.getLoc(), S.Context)); 14056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 14066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1407232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1408232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1409232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 14103c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1411232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1412232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1413bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1414cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ConstAttr(Attr.getLoc(), S.Context)); 1415232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1416232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1417232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1418232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1419232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 14203c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1421232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1422232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1423bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1424cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) PureAttr(Attr.getLoc(), S.Context)); 1425232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1426232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1427f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1428bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1429f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1430f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1431f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1432bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1433f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1434f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1435f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1436f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1437bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1438f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1439bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1440f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1441f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1442f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1443f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1444bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1445f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 1446c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 1447f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 1448f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis = S.LookupSingleName(S.TUScope, Attr.getParameterName(), 1449f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis Attr.getParameterLoc(), Sema::LookupOrdinaryName); 1450f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 1451f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << 1452f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1453f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1454f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1455bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1456f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1457f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 1458f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 1459f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_arg_not_function) 1460f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 1461f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1462f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1463f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1464f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 1465f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 1466f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_func_must_take_one_arg) 1467f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 1468f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1469f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1470bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 147189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 147289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 147389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 147489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 14751c23e91ef66688d20868b6bab3b5589a119eb603John McCall if (S.CheckAssignmentConstraints(ParamTy, Ty) != Sema::Compatible) { 1476f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 147789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 147889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 147989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 148089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 1481bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1482cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CleanupAttr(Attr.getLoc(), S.Context, FD)); 1483223ae5c26654e5fd7dacdafe43aff28a096ba63bArgyrios Kyrtzidis S.MarkDeclarationReferenced(Attr.getParameterLoc(), FD); 1484f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1485f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1486bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 1487bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1488bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleFormatArgAttr(Decl *d, const AttributeList &Attr, Sema &S) { 14895b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 14905b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 14915b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 14925b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 14935b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 14945b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 14955b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << Attr.getName() << 0 /*function*/; 14965b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 14975b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 149807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 149907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 150007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 150107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 150207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 15035b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 150407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 15055b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 15067a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 15075b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 1508ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1509ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 15105b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15115b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 15125b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 15135b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1514bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 15155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 15165b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 15175b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 15185b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 15195b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1520bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 15215b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 1522bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 152307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 152407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (ArgIdx == 0) { 152507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 152607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "format_arg" << IdxExpr->getSourceRange(); 152707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 152807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 152907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth ArgIdx--; 153007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 153107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 15325b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 15335b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 1534bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 15355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 15365b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 15375b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 15385b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 15396217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 15405b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 15415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1542bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 15435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 15445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1545bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 15465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Ty = getFunctionOrMethodResultType(d); 15475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 15485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 15495b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 15506217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 15515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 15525b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 1553bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 15545b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 15555b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1556bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1557bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 155807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth d->addAttr(::new (S.Context) FormatArgAttr(Attr.getLoc(), S.Context, 155907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth Idx.getZExtValue())); 15605b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 15615b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 15622b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 15632b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 15642b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 15652b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 15662b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 15673c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 15682b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 15692b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 15702b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 15712b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 15722b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 15732b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarstatic FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { 15742b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 15752b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 15762b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 15772b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 15782b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 15792b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 15802b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 15812b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 15822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 15832b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 15842b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 15852b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 15862b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "zcmn_err") 15872b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 15882b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1589bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 1590bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 15913c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 15923c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 15932b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 15942b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 15952b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1596521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 1597521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 1598521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanianstatic void HandleInitPriorityAttr(Decl *d, const AttributeList &Attr, 1599521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Sema &S) { 1600521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 1601521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1602521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1603521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1604521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1605b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!isa<VarDecl>(d) || S.getCurFunctionOrMethodDecl()) { 1606b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1607b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1608b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1609b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1610b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian QualType T = dyn_cast<VarDecl>(d)->getType(); 1611b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 1612b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 1613b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 1614b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1615b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1616b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1617b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1618b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1619521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 1620521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1621521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1622521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1623521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 16247a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *priorityExpr = Attr.getArg(0); 1625b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1626521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 1627521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 1628521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 1629521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1630521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 1631521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1632521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1633521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 16349f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 1635521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 1636521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 1637521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 1638521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1639521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1640521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1641f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) InitPriorityAttr(Attr.getLoc(), S.Context, 1642f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher prioritynum)); 1643521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 1644521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1645bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 1646bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1647803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 16486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1649545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1650fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 16513c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 16526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1655545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 16563c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 16576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1660620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1661fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 16625dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 16636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 166607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 166707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 166807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 166907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 16706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 16716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 167201eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Format = Attr.getParameterName()->getName(); 16736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 16752b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 16762b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 16772b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 16782b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 16792b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 16803c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 16813c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 16823c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 16833c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 16842b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 1685fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 168601eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 16876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 16906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 16917a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 1692803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1693ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1694ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1695fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 16963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 16976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 16986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 16996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1701fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 17023c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 17036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 17076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 1708bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17094a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 17104a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 171107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 171207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_format_attribute_implicit_this_format_string) 171307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << IdxExpr->getSourceRange(); 17144a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 17154a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 17164a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 17174a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 17181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 17203568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 17216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17222b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 1723085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1724fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1725fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1726085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1727085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 17282b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 1729390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1730390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1731803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1732390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1733fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1734fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 17356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1736bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 17376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 17386217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 1739390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1740fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1741fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 17426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 17467a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *FirstArgExpr = Attr.getArg(1); 1747803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1748ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 1749ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1750fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 17513c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 17526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 17566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 17573568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 17586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 17596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1760803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 17616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17653c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 17663c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 17672b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 17686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1769fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1770fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 17716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 17746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1775fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 17763c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 17776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1780cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FormatAttr(Attr.getLoc(), S.Context, Format, 1781cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 17822b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 17836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 17846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17850b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 17860b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 17876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1788545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 17893c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 17906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17930c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 17940c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1795bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 17960c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 17970c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 17980c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 17990c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 18000c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 18010c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1802fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 18035dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 1 /*union*/; 18046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18070c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 1808bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 18090c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 18100c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 18110c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 18120c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 181317945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 181417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 18150c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 18160c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 18170c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 18180c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1819bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 18200c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 18210c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 182290cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 1823bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 182490cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 182590cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 18260c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 18270c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1828bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 18290c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 18300c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 18310c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 18320c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 18330c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 18340c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 18350c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 18360c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 1837bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 18380c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 1839bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 18400c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 18410c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 18420c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 1843bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 18440c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 18450c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1846bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1847bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1848bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 18496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1850cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getLoc(), S.Context)); 18516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 18526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18530b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 18546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1855545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 18563c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 18576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18597a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1860797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 1861bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 18636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 18646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 1865797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 18666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1868f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) AnnotateAttr(Attr.getLoc(), S.Context, 1869f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 18706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 18716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18724ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthstatic void HandleAlignedAttr(Decl *D, const AttributeList &Attr, Sema &S) { 18736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1874545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 18753c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 18766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1878bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1879bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 1880bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 1881bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 18826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1883545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 1884cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) AlignedAttr(Attr.getLoc(), S.Context, true, 0)); 18854ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 18864ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 18874ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 18887a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne S.AddAlignedAttr(Attr.getLoc(), D, Attr.getArg(0)); 18894ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 18904ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 18914ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, Expr *E) { 18924ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 18934ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 1894cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 18956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1897bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1898cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 189949e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 19004ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 19014ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 19024ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 190349e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 190449e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1905396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 19064ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 19074ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 1908396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1909396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1910396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 1911cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 1912cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 1913cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 1914cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Huntvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, TypeSourceInfo *TS) { 1915cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 1916cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 1917cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, false, TS)); 1918cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 19196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1920fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1921bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HandleModeAttr - This attribute modifies the width of a decl with primitive 1922bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 1923fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1924bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 1925bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 1926bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 19270b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1928fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1929fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1930fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1931fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1932fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 19333c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1934fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1935fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1936fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1937fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1938fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 19390b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1940fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1941fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1942210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 194301eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Str = Attr.getParameterName()->getName(); 1944fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1945fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1946210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 1947210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 1948fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1949fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1950fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 195173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 1952210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 1953fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 195473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 195573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 195673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 195773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 195873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 195973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 196073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 196173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 196273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 196373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 196473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 196573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 196673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 196773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 196873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 196973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1970fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1971fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1972fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1973fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1974210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 19750b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1976210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 19770b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1978fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1979fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1980210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 19810b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1982fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1983fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1984fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1985fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1986fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1987fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1988fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1989fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1990fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1991fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1992fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1993fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1994fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 199573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1996183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 199773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 199873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 19992ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 200073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 200173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 200273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 200373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 200473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 200573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 200673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 200773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 200873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2009390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 2010390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 2011390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 2012390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 2013f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 2014f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 2015fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 2016fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 2017fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 20183c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 2019fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2020fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 20213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2022fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2023fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 202473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 202573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 202673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 202773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2028fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 20290b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 2030fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 20310b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 2032fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2033fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 203473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 203573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 203673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 203773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2038fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 20390b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 2040fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 20410b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 2042fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2043fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 2044fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 20450b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 2046fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 20470b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 2048fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 20490b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 2050fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2051fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 2052fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 20530b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 2054fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 2055aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 2056aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 2057aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2058aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 2059fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 2060aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 2061aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 2062aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2063aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 2064fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 206573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 206673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 206773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2068f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 2069f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 2070f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2071f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 2072f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 2073f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 2074f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 2075f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 2076f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 207773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2078fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2079fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 208073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 208173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 2082fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2083fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2084fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 2085ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 2086ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 2087a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 2088ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 2089fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 2090fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 20910744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 20921feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoDebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2093d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 2094d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 2095d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2096d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2097d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2098e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 20995bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 2100d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 21015dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 2102d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2103d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2104bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2105cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoDebugAttr(Attr.getLoc(), S.Context)); 2106d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 2107d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 21081feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 21095bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 21105bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 21115bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 21125bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 21135bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2114bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2115c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 21165bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 21175dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 21185bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 21195bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2120bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2121cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoInlineAttr(Attr.getLoc(), S.Context)); 21225bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 21235bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 21247255a2d997b15beae82e627052fdb1b2474495c2Chris Lattnerstatic void HandleNoInstrumentFunctionAttr(Decl *d, const AttributeList &Attr, 21257255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner Sema &S) { 21267255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 21277255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (Attr.getNumArgs() != 0) { 21287255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 21297255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 21307255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 21317255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 21327255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (!isa<FunctionDecl>(d)) { 21337255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 21347255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner << Attr.getName() << 0 /*function*/; 21357255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 21367255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 21377255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2138f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getLoc(), 2139f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 21407255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 21417255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2142ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleConstantAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2143ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2144ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2145ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2146ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2147ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2148ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2149ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2150ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<VarDecl>(d)) { 2151ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2152ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne << Attr.getName() << 12 /*variable*/; 2153ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2154ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2155ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2156ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getLoc(), S.Context)); 2157ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2158ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; 2159ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2160ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2161ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2162ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleDeviceAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2163ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2164ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2165ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2166ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2167ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2168ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2169ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2170ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<FunctionDecl>(d) && !isa<VarDecl>(d)) { 2171ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2172ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne << Attr.getName() << 2 /*variable and function*/; 2173ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2174ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2175ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2176ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getLoc(), S.Context)); 2177ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2178ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; 2179ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2180ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2181ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2182ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleGlobalAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2183ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2184ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2185ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2186ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2187ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2188ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2189ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2190ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<FunctionDecl>(d)) { 2191ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2192ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne << Attr.getName() << 0 /*function*/; 2193ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2194ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2195ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 21962c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne FunctionDecl *FD = cast<FunctionDecl>(d); 21972c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (!FD->getResultType()->isVoidType()) { 2198723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); 21992c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { 22002c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 22012c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType() 22022c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), 22032c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne "void"); 22042c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } else { 22052c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 22062c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType(); 22072c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 22082c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne return; 22092c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 22102c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne 2211ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getLoc(), S.Context)); 2212ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2213ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; 2214ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2215ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2216ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2217ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleHostAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2218ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2219ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2220ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2221ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2222ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2223ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2224ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2225ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<FunctionDecl>(d)) { 2226ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2227ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne << Attr.getName() << 0 /*function*/; 2228ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2229ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2230ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2231ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDAHostAttr(Attr.getLoc(), S.Context)); 2232ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2233ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; 2234ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2235ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2236ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2237ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleSharedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2238ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2239ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2240ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2241ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2242ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2243ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2244ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2245ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<VarDecl>(d)) { 2246ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2247ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne << Attr.getName() << 12 /*variable*/; 2248ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2249ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2250ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2251ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDASharedAttr(Attr.getLoc(), S.Context)); 2252ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2253ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; 2254ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2255ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2256ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2257cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 225826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 225926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 226026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 226126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 226226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2263bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2264c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 2265c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 226626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 22675dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek << Attr.getName() << 0 /*function*/; 226826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 226926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2270bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 22710130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 2272cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 2273c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 2274c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 2275bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2276cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) GNUInlineAttr(Attr.getLoc(), S.Context)); 227726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 227826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 2279711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void HandleCallConvAttr(Decl *d, const AttributeList &attr, Sema &S) { 2280711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (hasDeclarator(d)) return; 2281711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2282711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnostic is emitted elsewhere: here we store the (valid) attr 2283e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 2284711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 2285711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 2286711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2287e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2288711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!isa<ObjCMethodDecl>(d)) { 2289711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2290711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << attr.getName() << 0 /*function*/; 2291711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2292711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2293711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2294711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 2295e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 2296711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) FastCallAttr(attr.getLoc(), S.Context)); 2297e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2298e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 2299711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) StdCallAttr(attr.getLoc(), S.Context)); 2300e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2301f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 2302711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) ThisCallAttr(attr.getLoc(), S.Context)); 230304633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 2304e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 2305711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) CDeclAttr(attr.getLoc(), S.Context)); 2306e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 230752fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2308711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) PascalAttr(attr.getLoc(), S.Context)); 230952fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 2310e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 2311e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 2312e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2313e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 2314e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 2315e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2316711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { 2317711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2318711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2319711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2320711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 2321711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2322711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2323711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2324ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 232555d3aaf9a537888734762170823daf750ea9036dEli Friedman 2326711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // TODO: diagnose uses of these conventions on the wrong target. 2327711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 2328711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 2329711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 2330711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 2331711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; 2332711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: CC = CC_X86Pascal; break; 2333711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: llvm_unreachable("unexpected attribute kind"); return true; 2334711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2335711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2336711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2337711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 2338711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2339711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void HandleRegparmAttr(Decl *d, const AttributeList &attr, Sema &S) { 2340711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (hasDeclarator(d)) return; 2341711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2342711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned numParams; 2343711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, numParams)) 2344711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2345711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2346711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!isa<ObjCMethodDecl>(d)) { 2347711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2348711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << attr.getName() << 0 /*function*/; 2349ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2350ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 235155d3aaf9a537888734762170823daf750ea9036dEli Friedman 2352711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) RegparmAttr(attr.getLoc(), S.Context, numParams)); 2353711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 2354711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2355711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Checks a regparm attribute, returning true if it is ill-formed and 2356711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// otherwise setting numParams to the appropriate value. 2357711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckRegparmAttr(const AttributeList &attr, unsigned &numParams) { 2358711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2359711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2360711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2361711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 1) { 2362711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2363711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2364711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2365711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2366711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2367711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Expr *NumParamsExpr = attr.getArg(0); 236855d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 2369ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 2370711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { 2371711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_argument_not_int) 237255d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 2373711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2374711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 237555d3aaf9a537888734762170823daf750ea9036dEli Friedman } 237655d3aaf9a537888734762170823daf750ea9036dEli Friedman 2377711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (Context.Target.getRegParmMax() == 0) { 2378711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 237955d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 2380711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2381711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 238255d3aaf9a537888734762170823daf750ea9036dEli Friedman } 238355d3aaf9a537888734762170823daf750ea9036dEli Friedman 2384711c52bb20d0c69063b52a99826fb7d2835501f1John McCall numParams = NumParams.getZExtValue(); 2385711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (numParams > Context.Target.getRegParmMax()) { 2386711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_regparm_invalid_number) 2387711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 2388711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2389711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 239055d3aaf9a537888734762170823daf750ea9036dEli Friedman } 239155d3aaf9a537888734762170823daf750ea9036dEli Friedman 2392711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2393ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 2394ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 23957b381985353304a7723acb05911ff91634fa1f27Peter Collingbournestatic void HandleLaunchBoundsAttr(Decl *d, const AttributeList &Attr, Sema &S){ 23967b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (S.LangOpts.CUDA) { 23977b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne // check the attribute arguments. 23987b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { 23997b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 24007b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "1 or 2"; 24017b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 24027b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 24037b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 24047b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (!isFunctionOrMethod(d)) { 24057b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 24067b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << Attr.getName() << 0 /*function*/; 24077b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 24087b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 24097b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 24107b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MaxThreadsExpr = Attr.getArg(0); 24117b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MaxThreads(32); 24127b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MaxThreadsExpr->isTypeDependent() || 24137b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreadsExpr->isValueDependent() || 24147b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { 24157b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 24167b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); 24177b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 24187b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 24197b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 24207b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MinBlocks(32); 24217b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() > 1) { 24227b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MinBlocksExpr = Attr.getArg(1); 24237b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MinBlocksExpr->isTypeDependent() || 24247b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocksExpr->isValueDependent() || 24257b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { 24267b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 24277b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); 24287b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 24297b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 24307b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 24317b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 24327b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne d->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getLoc(), S.Context, 24337b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreads.getZExtValue(), 24347b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocks.getZExtValue())); 24357b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } else { 24367b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; 24377b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 24387b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne} 24397b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 24400744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 24417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt// C++0x member checking attributes 24427725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 24437725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 24447725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleBaseCheckAttr(Decl *d, const AttributeList &Attr, Sema &S) { 24457725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 24467725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 24477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 24487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 24497725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 24507725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXRecordDecl>(d)) { 24517725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 24527725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 24537725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 24547725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 9 /*class*/; 24557725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 24567725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 24577725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 24587725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<BaseCheckAttr>()) { 24597725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "base_check"; 24607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 24617725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 24627725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2463cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) BaseCheckAttr(Attr.getLoc(), S.Context)); 24647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 24657725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 24667725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleHidingAttr(Decl *d, const AttributeList &Attr, Sema &S) { 24677725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 24687725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 24697725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 24707725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 24717725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 24727725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<RecordDecl>(d->getDeclContext())) { 24737725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 24747725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 24757725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 24767725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 24777725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 11 /*member*/; 24787725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 24797725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 24807725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 24817725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 24827725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 24837725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<HidingAttr>()) { 24847725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "hiding"; 24857725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 24867725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 24877725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2488cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) HidingAttr(Attr.getLoc(), S.Context)); 24897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 24907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 24917725e67639fa2fe74f8775b7ed884a076ffdbffcSean Huntstatic void HandleOverrideAttr(Decl *d, const AttributeList &Attr, Sema &S) { 24927725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (Attr.getNumArgs() != 0) { 24937725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 24947725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 24957725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 24967725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 24977725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (!isa<CXXMethodDecl>(d) || !cast<CXXMethodDecl>(d)->isVirtual()) { 24987725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: It's not the type that's the problem 24997725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), 25007725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 25017725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt : diag::warn_attribute_wrong_decl_type) 25027725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt << Attr.getName() << 10 /*virtual method*/; 25037725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 25047725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 25057725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 25067725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt // FIXME: Conform to C++0x redeclaration rules. 25077725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 25087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt if (d->getAttr<OverrideAttr>()) { 25097725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "override"; 25107725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt return; 25117725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt } 25127725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 2513cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) OverrideAttr(Attr.getLoc(), S.Context)); 25147725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt} 25157725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt 25167725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt//===----------------------------------------------------------------------===// 2517b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 2518b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 2519b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2520b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenekstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &Attr, 2521b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 2522b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 25235dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek QualType RetTy; 2524bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 25255dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 25265dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = MD->getResultType(); 25275dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 25285dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek RetTy = FD->getResultType(); 25295dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 253021531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 253121531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 253221531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName() << 3 /* function or method */; 2533b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2534b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 2535bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 25366217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (!(S.Context.isObjCNSObjectType(RetTy) || RetTy->getAs<PointerType>() 2537183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall || RetTy->getAs<ObjCObjectPointerType>())) { 253821531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek SourceLocation L = Attr.getLoc(); 253921531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 254021531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek << SourceRange(L, L) << Attr.getName(); 2541bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 25425dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 2543bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2544b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek switch (Attr.getKind()) { 2545b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 2546b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 2547b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 254831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2549f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getLoc(), 2550f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 255131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 255231c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 2553f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getLoc(), 2554f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 255531c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 2556b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2557f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getLoc(), 2558f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 2559b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2560b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2561f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getLoc(), 2562f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 2563b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2564b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 2565b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 2566b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2567f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 2568f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 256911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_dllexport || 257011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_uuid; 257111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet} 257211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 257311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 257411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet// Microsoft specific attribute handlers. 257511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 257611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 257711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichetstatic void HandleUuidAttr(Decl *d, const AttributeList &Attr, Sema &S) { 257811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet if (S.LangOpts.Microsoft || S.LangOpts.Borland) { 257911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet // check the attribute arguments. 258011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet if (Attr.getNumArgs() != 1) { 258111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 258211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet return; 258311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet } 258411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Expr *Arg = Attr.getArg(0); 258511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 2586d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (Str == 0 || Str->isWide()) { 2587d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 2588d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet << "uuid" << 1; 2589d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2590d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2591d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2592d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet llvm::StringRef StrRef = Str->getString(); 2593d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2594d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && 2595d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet StrRef.back() == '}'; 2596d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2597d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // Validate GUID length. 2598d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (IsCurly && StrRef.size() != 38) { 2599d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2600d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2601d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2602d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (!IsCurly && StrRef.size() != 36) { 2603d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2604d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2605d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2606d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2607d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or 2608d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" 2609f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson llvm::StringRef::iterator I = StrRef.begin(); 2610f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson if (IsCurly) // Skip the optional '{' 2611f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson ++I; 2612f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson 2613f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson for (int i = 0; i < 36; ++i) { 2614d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (i == 8 || i == 13 || i == 18 || i == 23) { 2615d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (*I != '-') { 2616d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2617d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2618d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2619d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else if (!isxdigit(*I)) { 2620d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2621d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2622d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2623d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet I++; 2624d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 262511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 262611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet d->addAttr(::new (S.Context) UuidAttr(Attr.getLoc(), S.Context, 262711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Str->getString())); 2628d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else 262911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; 2630f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 2631f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 2632b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 26330744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 26340744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 26350744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 263660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournestatic void ProcessNonInheritableDeclAttr(Scope *scope, Decl *D, 263760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList &Attr, Sema &S) { 263860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne switch (Attr.getKind()) { 263960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: HandleDeviceAttr (D, Attr, S); break; 264060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: HandleHostAttr (D, Attr, S); break; 264160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 264260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne default: 264360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 264460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne } 264560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 2646e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 264760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournestatic void ProcessInheritableDeclAttr(Scope *scope, Decl *D, 264860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList &Attr, Sema &S) { 2649803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 265063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek case AttributeList::AT_IBAction: HandleIBAction(D, Attr, S); break; 2651857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutlet: HandleIBOutlet(D, Attr, S); break; 2652857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 2653857e918a8a40deb128840308a318bf623d68295fTed Kremenek HandleIBOutletCollection(D, Attr, S); break; 2654803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 2655ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 26566e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 26574211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 26584211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 2659bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 2660bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 2661803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 266260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: 266360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: 266460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable: 266560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // Ignore, this is a non-inheritable attribute, handled 266660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // by ProcessNonInheritableDeclAttr. 266760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 26687725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 26697725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 2670bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 2671af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 2672b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 2673bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump HandleAnalyzerNoReturnAttr (D, Attr, S); break; 26747725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 26757725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_base_check: HandleBaseCheckAttr (D, Attr, S); break; 2676bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 26777725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt HandleDependencyAttr (D, Attr, S); break; 2678a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher case AttributeList::AT_common: HandleCommonAttr (D, Attr, S); break; 2679ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne case AttributeList::AT_constant: HandleConstantAttr (D, Attr, S); break; 26807725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_constructor: HandleConstructorAttr (D, Attr, S); break; 26817725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_deprecated: HandleDeprecatedAttr (D, Attr, S); break; 26827725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_destructor: HandleDestructorAttr (D, Attr, S); break; 26833068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 26849cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor HandleExtVectorTypeAttr(scope, D, Attr, S); 26853068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 26867725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 26877725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break; 2688ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne case AttributeList::AT_global: HandleGlobalAttr (D, Attr, S); break; 26897725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_gnu_inline: HandleGNUInlineAttr (D, Attr, S); break; 26907725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_hiding: HandleHidingAttr (D, Attr, S); break; 26917b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne case AttributeList::AT_launch_bounds: 26927b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne HandleLaunchBoundsAttr(D, Attr, S); 26937b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne break; 26947725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 26957725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_malloc: HandleMallocAttr (D, Attr, S); break; 269634c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman case AttributeList::AT_may_alias: HandleMayAliasAttr (D, Attr, S); break; 2697a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher case AttributeList::AT_nocommon: HandleNoCommonAttr (D, Attr, S); break; 26987725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 2699dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 2700dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 2701dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 2702dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek HandleOwnershipAttr (D, Attr, S); break; 2703dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar case AttributeList::AT_naked: HandleNakedAttr (D, Attr, S); break; 27047725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 27057725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 27067725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_override: HandleOverrideAttr (D, Attr, S); break; 2707ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne case AttributeList::AT_shared: HandleSharedAttr (D, Attr, S); break; 270835cc9627340b15232139b3c43fcde5973e7fad30John Thompson case AttributeList::AT_vecreturn: HandleVecReturnAttr (D, Attr, S); break; 2709b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2710b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 271131c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 271231c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2713b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2714b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2715b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 2716b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 27176f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 27186f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman HandleReqdWorkGroupSize(D, Attr, S); break; 27196f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 2720521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 2721521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian HandleInitPriorityAttr(D, Attr, S); break; 2722521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 27237725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 27247725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 27257725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unavailable: HandleUnavailableAttr (D, Attr, S); break; 27267725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 27277725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 27287725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_visibility: HandleVisibilityAttr (D, Attr, S); break; 2729026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 2730026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 27317725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 273211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola case AttributeList::AT_weakref: HandleWeakRefAttr (D, Attr, S); break; 27337725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak_import: HandleWeakImportAttr (D, Attr, S); break; 2734803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 2735803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 2736803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 27370db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 27380db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 27390db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 27407725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 27417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 27427725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 27437725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 27447725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 27457725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 27467725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nodebug: HandleNoDebugAttr (D, Attr, S); break; 27477725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noinline: HandleNoInlineAttr (D, Attr, S); break; 27487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 2749bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 275005f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 275105f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 27527255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 27537255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner HandleNoInstrumentFunctionAttr(D, Attr, S); 27547255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 275504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 275604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 275704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 2758f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 275952fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2760e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara HandleCallConvAttr(D, Attr, S); 276104a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 276211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet case AttributeList::AT_uuid: 276311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet HandleUuidAttr(D, Attr, S); 276411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet break; 2765803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 276682d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 276782d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 276882d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 27697d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 27707d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 2771803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 2772803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2773803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2774803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 277560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 277660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the attribute applies to decls. If the attribute is a type attribute, just 277760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 277860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 277960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournestatic void ProcessDeclAttribute(Scope *scope, Decl *D, 278060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList &Attr, Sema &S, 278160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 278260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isInvalid()) 278360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 278460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 278560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 278660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // FIXME: Try to deal with other __declspec attributes! 278760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 278860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 278960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (NonInheritable) 279060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessNonInheritableDeclAttr(scope, D, Attr, S); 279160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 279260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable) 279360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessInheritableDeclAttr(scope, D, Attr, S); 279460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 279560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 2796803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 2797803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 2798f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christophervoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, 279960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList *AttrList, 280060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 280111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 280260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttribute(S, D, *l, *this, NonInheritable, Inheritable); 280311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 280411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 280511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 280611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 280711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 280860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 280911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 2810dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 281111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 2812803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2813803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2814803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2815e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 2816e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 28171eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II) { 28187b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 2819e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 2820e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 2821e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 2822e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn FD->getLocation(), DeclarationName(II), 2823a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FD->getType(), FD->getTypeSourceInfo()); 2824b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (FD->getQualifier()) { 2825b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall FunctionDecl *NewFD = cast<FunctionDecl>(NewD); 2826b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewFD->setQualifierInfo(FD->getQualifier(), FD->getQualifierRange()); 2827b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2828e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 2829e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 2830e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn VD->getLocation(), II, 2831a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 283216573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 283316573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 2834b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 2835b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 2836b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall NewVD->setQualifierInfo(VD->getQualifier(), VD->getQualifierRange()); 2837b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2838e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2839e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 2840e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2841e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 2842e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 2843e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 28447b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 2845c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 2846c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 2847c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 2848c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 2849c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias()); 2850cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 2851cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 2852cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2853c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 2854c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 2855c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 2856c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 2857c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 2858c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 2859c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 2860c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 2861cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2862e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2863e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2864e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 28650744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 28660744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 28670744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 286860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournevoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, 286960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 2870d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // It's valid to "forward-declare" #pragma weak, in which case we 2871d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // have to do this. 287260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && !WeakUndeclaredIdentifiers.empty()) { 2873d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 2874d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (IdentifierInfo *Id = ND->getIdentifier()) { 2875d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I 2876d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall = WeakUndeclaredIdentifiers.find(Id); 2877d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { 2878d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall WeakInfo W = I->second; 2879d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall DeclApplyPragmaWeak(S, ND, W); 2880d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall WeakUndeclaredIdentifiers[Id] = W; 2881d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall } 2882e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2883e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2884e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2885e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 28860744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 28877f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) 288860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 2889bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 28900744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 28910744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 28920744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 28930744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 28940744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 28950744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 289660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 2897bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 28980744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 28990744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 290060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 29010744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 290254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 290354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// PushParsingDeclaration - Enter a new "scope" of deprecation 290454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// warnings. 290554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// 290654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// The state token we use is the start index of this scope 290754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall/// on the warning stack. 2908f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallSema::ParsingDeclStackState Sema::PushParsingDeclaration() { 290954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth++; 29102f514480c448708ec382a684cf5e035d3a827ec8John McCall return (ParsingDeclStackState) DelayedDiagnostics.size(); 291154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 291254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 2913d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallvoid Sema::PopParsingDeclaration(ParsingDeclStackState S, Decl *D) { 291454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall assert(ParsingDeclDepth > 0 && "empty ParsingDeclaration stack"); 291554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclDepth--; 291654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 29172f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics.empty()) 291854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 291954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 292054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall unsigned SavedIndex = (unsigned) S; 29212f514480c448708ec382a684cf5e035d3a827ec8John McCall assert(SavedIndex <= DelayedDiagnostics.size() && 292254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall "saved index is out of bounds"); 292354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 292458e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall unsigned E = DelayedDiagnostics.size(); 292558e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 29262f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 29272f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 29282f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D) { 29292f514480c448708ec382a684cf5e035d3a827ec8John McCall // We really do want to start with 0 here. We get one push for a 29302f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 29312f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 29322f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 29332f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 29342f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 293558e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = 0; I != E; ++I) { 29362f514480c448708ec382a684cf5e035d3a827ec8John McCall if (DelayedDiagnostics[I].Triggered) 29372f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 29382f514480c448708ec382a684cf5e035d3a827ec8John McCall 29392f514480c448708ec382a684cf5e035d3a827ec8John McCall switch (DelayedDiagnostics[I].Kind) { 29402f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 29412f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedDeprecationCheck(DelayedDiagnostics[I], D); 29422f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 29432f514480c448708ec382a684cf5e035d3a827ec8John McCall 29442f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 29452f514480c448708ec382a684cf5e035d3a827ec8John McCall HandleDelayedAccessCheck(DelayedDiagnostics[I], D); 29462f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 294754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 294854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 294954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 295054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 295158e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 295258e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall for (unsigned I = SavedIndex; I != E; ++I) 295358e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall DelayedDiagnostics[I].destroy(); 295458e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 29552f514480c448708ec382a684cf5e035d3a827ec8John McCall DelayedDiagnostics.set_size(SavedIndex); 29562f514480c448708ec382a684cf5e035d3a827ec8John McCall} 29572f514480c448708ec382a684cf5e035d3a827ec8John McCall 29582f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 29592f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 29602f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D->hasAttr<DeprecatedAttr>()) 29612f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 29622f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 29632f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 29642f514480c448708ec382a684cf5e035d3a827ec8John McCall} 29652f514480c448708ec382a684cf5e035d3a827ec8John McCall 29669c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 29672f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 29682f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 29692f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 29702f514480c448708ec382a684cf5e035d3a827ec8John McCall 29712f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 2972ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!DD.getDeprecationMessage().empty()) 2973c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_message) 2974ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName() 2975ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationMessage(); 2976c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 2977c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated) 2978ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName(); 297954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 298054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 2981ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramervoid Sema::EmitDeprecationWarning(NamedDecl *D, llvm::StringRef Message, 29828e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian SourceLocation Loc, 2983743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne bool UnknownObjCClass) { 298454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 298554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (ParsingDeclDepth) { 2986c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian DelayedDiagnostics.push_back(DelayedDiagnostic::makeDeprecation(Loc, D, 2987c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Message)); 298854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 298954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 299054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 299154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 299254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 299354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 2994ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!Message.empty()) 2995c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() 2996c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian << Message; 29978e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else { 2998743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne if (!UnknownObjCClass) 29998e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 30008e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else 30018e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); 30028e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian } 300354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 3004