SemaDeclAttr.cpp revision 883cc2ca5ff06d7f1d89a9ab24a2da37f095243b
16b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===--- SemaDeclAttr.cpp - Declaration Attribute Handling ----------------===// 26b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 36b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// The LLVM Compiler Infrastructure 46b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 56b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// This file is distributed under the University of Illinois Open Source 66b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// License. See LICENSE.TXT for details. 76b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 86b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===----------------------------------------------------------------------===// 96b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// This file implements decl-related attribute processing. 116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner// 126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner//===----------------------------------------------------------------------===// 136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 142d88708cbe4e4ec5e04e4acb6bd7f5be68557379John McCall#include "clang/Sema/SemaInternal.h" 1582d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov#include "TargetAttributesSema.h" 166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner#include "clang/AST/ASTContext.h" 17384aff8b94bb0d1ad6c5667b90621e5699815bb2John McCall#include "clang/AST/DeclCXX.h" 18acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/DeclObjC.h" 19acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/Expr.h" 20fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 2119510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 229c3087b0b0bea2fd782205c1274ebfc4290265e0John McCall#include "clang/Sema/DelayedDiagnostic.h" 23797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 259c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallusing namespace sema; 266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 27883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// These constants match the enumerated choices of 28883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// warn_attribute_wrong_decl_type and err_attribute_wrong_decl_type. 29883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCallenum { 30883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunction, 31883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedUnion, 32883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariableOrFunction, 33883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionOrMethod, 34883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameter, 35883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameterOrMethod, 36883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrBlock, 37883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClassOrVirtualMethod, 38883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrParameter, 39883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClass, 40883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVirtualMethod, 41883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClassMember, 42883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariable, 43883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedMethod, 44883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariableFunctionOrLabel 45883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall}; 46883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall 47e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 48e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 49e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 50e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 51a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic const FunctionType *getFunctionType(const Decl *d, 52a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 54a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek if (const ValueDecl *decl = dyn_cast<ValueDecl>(d)) 556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 56a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const FieldDecl *decl = dyn_cast<FieldDecl>(d)) 576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 58a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek else if (const TypedefDecl* decl = dyn_cast<TypedefDecl>(d)) 596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 62bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 646217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 65755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 666217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 67d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 68183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 713568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 723568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 733568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 74d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 75a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 76a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunction(const Decl *d) { 77a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return getFunctionType(d, false) != NULL; 78a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 79a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 80a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 81d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 82d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 83a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethod(const Decl *d) { 84a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek return isFunction(d)|| isa<ObjCMethodDecl>(d); 85d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 863568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 87620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 88620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 89620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 90a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodOrBlock(const Decl *d) { 91620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (isFunctionOrMethod(d)) 92620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 93620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 94620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 95620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 96620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 97620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 98d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return isa<BlockDecl>(d); 99620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 100620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 101711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Return true if the given decl has a declarator that should have 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// been processed by Sema::GetTypeForDeclarator. 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic bool hasDeclarator(const Decl *d) { 104711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. 105711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return isa<DeclaratorDecl>(d) || isa<BlockDecl>(d) || isa<TypedefDecl>(d); 106711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 107711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 108d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 109d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 110620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 111a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool hasFunctionProto(const Decl *d) { 112620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 11372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 114620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 115d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian assert(isa<ObjCMethodDecl>(d) || isa<BlockDecl>(d)); 116d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 117d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 1183568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1193568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 120d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 121d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 122d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 123a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic unsigned getFunctionOrMethodNumArgs(const Decl *d) { 12489951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 12572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 126d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 127d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 12889951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_size(); 1293568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1303568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 131a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodArgType(const Decl *d, unsigned Idx) { 13289951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 13372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 134d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 135d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 136bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13789951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_begin()[Idx]->getType(); 1383568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1393568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 140a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic QualType getFunctionOrMethodResultType(const Decl *d) { 1415b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (const FunctionType *FnTy = getFunctionType(d)) 1425b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 1435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<ObjCMethodDecl>(d)->getResultType(); 1445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 146a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenekstatic bool isFunctionOrMethodVariadic(const Decl *d) { 147d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 14872564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1493568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 150d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(d)) 151db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 152d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 1533568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 1543568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1553568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1563568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 15707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruthstatic bool isInstanceMethod(const Decl *d) { 15807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(d)) 15907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return MethodDecl->isInstance(); 16007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return false; 16107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth} 16207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 164183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 165b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 167bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 168506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 169506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 171bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 172506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 173bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 179085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1806217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 181085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 182085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 183085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1846217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 185085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 186085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 187bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 188085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 189465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 190085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 191085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 192085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 193085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 194085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 195e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 196e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 197e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 198e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 2003068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 2013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 2023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 203bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleExtVectorTypeAttr(Scope *scope, Decl *d, 2049cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor const AttributeList &Attr, Sema &S) { 205545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 206545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 207803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 208545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 2096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 210bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 2129cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2139cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 2149cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2159cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 2169cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 217f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 218f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 219f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 220f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall sizeExpr = S.ActOnIdExpression(scope, SS, id, false, false).takeAs<Expr>(); 2219cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 2229cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 2239cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getNumArgs() != 1) { 2249cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2259cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 2269cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 2277a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne sizeExpr = Attr.getArg(0); 2286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2299cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2309cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 2319cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 2329ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 2339cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 234ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 235a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 236bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2379cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 2389cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 2396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 242803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 244545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2453c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 248bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 250cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt TD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 255803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 256fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 25708631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 259cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt FD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2613c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 26463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBAction(Decl *d, const AttributeList &Attr, Sema &S) { 26596329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 26696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2673c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 26896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 26996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 270bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 27163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 27263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 27363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 274cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBActionAttr(Attr.getLoc(), S.Context)); 27563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 27663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 27763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 2784ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); 27963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 28063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 28163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenekstatic void HandleIBOutlet(Decl *d, const AttributeList &Attr, Sema &S) { 28263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 28363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (Attr.getNumArgs() > 0) { 28463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 28563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 28663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 28763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 28863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBOutlet attributes only apply to instance variables of 289efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek // Objective-C classes. 290efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek if (isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d)) { 291cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletAttr(Attr.getLoc(), S.Context)); 29263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 293efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek } 29463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 2954ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 29696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 29796329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 298857e918a8a40deb128840308a318bf623d68295fTed Kremenekstatic void HandleIBOutletCollection(Decl *d, const AttributeList &Attr, 299857e918a8a40deb128840308a318bf623d68295fTed Kremenek Sema &S) { 300857e918a8a40deb128840308a318bf623d68295fTed Kremenek 301857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 302a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 303857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 304857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 305857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 306857e918a8a40deb128840308a318bf623d68295fTed Kremenek 307857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The IBOutletCollection attributes only apply to instance variables of 308857e918a8a40deb128840308a318bf623d68295fTed Kremenek // Objective-C classes. 309857e918a8a40deb128840308a318bf623d68295fTed Kremenek if (!(isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d))) { 3104ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 311857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 312857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 3133a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ValueDecl *VD = dyn_cast<ValueDecl>(d)) 3143a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 3153a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 3163a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << VD->getType() << 0; 3173a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 3183a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 3193a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(d)) 3203a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 3213a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 3223a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << PD->getType() << 1; 3233a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 3243a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 3253a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 326a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 327a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 328a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 3293a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 330b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 331a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.getScopeForContext(d->getDeclContext()->getParent())); 332a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 333a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 334a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 335a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 336b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 337a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 338a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 339a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 340a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 341a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 342a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 343a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 344a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 345a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 346cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getLoc(), S.Context, 347cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt QT)); 348857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 349857e918a8a40deb128840308a318bf623d68295fTed Kremenek 350eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 351bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 352bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 353d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 354fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 355883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 356eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 357eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 358bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 35907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 36007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 36107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 36207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 363eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 364eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 365eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 366bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 367eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 368eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 369bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 370bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 371eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 3727a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Ex = *I; 373eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 374ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 375ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 376fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 377fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 378eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 379eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 380bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 381eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 382bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 383eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 384fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 38530bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 386eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 387eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 388bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 389465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 39007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 39107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 39207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 39307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_attribute_invalid_implicit_this_argument) 39407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "nonnull" << Ex->getSourceRange(); 39507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 39607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 39707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 39807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 399eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 400eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 401de43632a5951abf3f357e2f79dcddda4dc6ec8ffDouglas Gregor QualType T = getFunctionOrMethodArgType(d, x).getNonReferenceType(); 402dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 403eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 404c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 405fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 4067fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 407eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 408bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 409eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 410eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 411bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 412bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 413bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 4147fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 41546bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 416de43632a5951abf3f357e2f79dcddda4dc6ec8ffDouglas Gregor QualType T = getFunctionOrMethodArgType(d, I).getNonReferenceType(); 417dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 418d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 419ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian else if (const RecordType *UT = T->getAsUnionType()) { 420ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { 421ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian RecordDecl *UD = UT->getDecl(); 422ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian for (RecordDecl::field_iterator it = UD->field_begin(), 423ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian itend = UD->field_end(); it != itend; ++it) { 424ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian T = it->getType(); 425ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian if (T->isAnyPointerType() || T->isBlockPointerType()) { 426ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian NonNullArgs.push_back(I); 427ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian break; 428ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 429ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 430ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 431ff3a078d2a67db9ae6ff4cc0f799a209f85a4e91Fariborz Jahanian } 43246bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 433bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 434ee1c08c88649aaea9dd53272a726cd23de533215Ted Kremenek // No pointer arguments? 43560acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 43660acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 43760acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 43860acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 43960acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 4407fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 44160acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 442eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 4437fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 4447fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 4457fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 446dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 447cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NonNullAttr(Attr.getLoc(), S.Context, start, 448cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 449eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 450eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 451dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenekstatic void HandleOwnershipAttr(Decl *d, const AttributeList &AL, Sema &S) { 452dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 453dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 454dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 455dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 456dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 457dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 4582a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 4592a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 460dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 461dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 462dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 463dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 464dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 465dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 466dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 467cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 4682a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 4692a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 470cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 471dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 472dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 473dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 474dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4752a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4762a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 477cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 478dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 479dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 480dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 481dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4822a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4832a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 484cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 485dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 486dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 487dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 488dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 489dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4902a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4912a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 4922a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 4932a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 494dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 495dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 496dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!isFunction(d) || !hasFunctionProto(d)) { 497883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) 498883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << AL.getName() << ExpectedFunction; 499dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 500dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 501dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 50207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 50307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 50407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 50507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 506dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 507dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::StringRef Module = AL.getParameterName()->getName(); 508dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 509dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 510dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 511dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 512dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 513dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::SmallVector<unsigned, 10> OwnershipArgs; 514dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 5152a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 5162a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 517dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 5187a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = *I; 519dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 520dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 521dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 522dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 523dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 524dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 525dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 526dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 527dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 528dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 529dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 530dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 531dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 532dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 533dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 534dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 53507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 53607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 53707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 53807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "ownership" << IdxExpr->getSourceRange(); 53907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 54007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 54107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 54207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 54307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 544dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 545cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 546cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 547dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 548dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek QualType T = getFunctionOrMethodArgType(d, x); 549dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 550dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 551dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 552cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 553dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 554dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 555dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 556dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 557dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 558dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 559cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 560dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 561dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 5627a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = AL.getArg(0); 563dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 564dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 565dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 566dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 567dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 568dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 569dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 570dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 571dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 572dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 573dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5742a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 5752a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 576dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 577dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 578dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 579cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 580cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i = d->specific_attr_begin<OwnershipAttr>(), 581cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt e = d->specific_attr_end<OwnershipAttr>(); 582cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 583cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 584cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 585cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 586cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 587cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 588cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 589dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 590dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 591dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 592dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 593dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 594dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 595dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 596dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 597dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 598dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 599cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 600cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 601cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 602cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 603dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 604cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 605cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 606cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 607dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 608dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 609332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// Whether this declaration has internal linkage for the purposes of 610332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// things that want to complain about things not have internal linkage. 611332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCallstatic bool hasEffectivelyInternalLinkage(NamedDecl *D) { 612332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall switch (D->getLinkage()) { 613332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case NoLinkage: 614332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case InternalLinkage: 615332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 616332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 617332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // Template instantiations that go from external to unique-external 618332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // shouldn't get diagnosed. 619332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case UniqueExternalLinkage: 620332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 621332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 622332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case ExternalLinkage: 623332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return false; 624332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 625332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall llvm_unreachable("unknown linkage kind!"); 62611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 62711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 62811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 62911e8ce7380856abee188b237c2600272df2ed09dRafael Espindolastatic void HandleWeakRefAttr(Decl *d, const AttributeList &Attr, Sema &S) { 63011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 63111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 63211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 63311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 63411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 63511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 636332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!isa<VarDecl>(d) && !isa<FunctionDecl>(d)) { 637332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 638883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 639332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return; 640332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 641332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 642332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall NamedDecl *nd = cast<NamedDecl>(d); 643332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 64411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 64511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 64611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 64711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 64811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 64911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 65011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 65111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 65211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 65311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 6547a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl const DeclContext *Ctx = d->getDeclContext()->getRedeclContext(); 6557a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 6567a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 657332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall nd->getNameAsString(); 6587a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 65911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 66011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 66111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 66211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 66311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 66411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 66511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 66611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 66711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 66811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 66911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 67011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 67111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 67211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 67311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 67411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 67511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 67611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 67711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 67811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 679332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!hasEffectivelyInternalLinkage(nd)) { 680332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); 68111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 68211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 68311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 68411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 68511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 68611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 68711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 68811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 6897a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 69011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 69111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 69211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 69311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Str == 0 || Str->isWide()) { 69411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 69511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 69611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 69711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 69811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 69911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 700f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, 701f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 70211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 70311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 704cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) WeakRefAttr(Attr.getLoc(), S.Context)); 70511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 70611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 707803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 7086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 709545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 7103c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 7116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 713bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7147a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 7156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 7166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 717bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 719fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 7203c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 7216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 723bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 724f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola if (S.Context.Target.getTriple().getOS() == llvm::Triple::Darwin) { 725f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); 726f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola return; 727f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola } 728f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola 7296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 730bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 731f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, 732f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 7336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 735dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbarstatic void HandleNakedAttr(Decl *d, const AttributeList &Attr, 736dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar Sema &S) { 737dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 738dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar if (Attr.getNumArgs() != 0) { 739dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 740dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 741dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 742dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 743dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar if (!isa<FunctionDecl>(d)) { 744dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 745883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 746dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 747dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 748dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 749dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar d->addAttr(::new (S.Context) NakedAttr(Attr.getLoc(), S.Context)); 750dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar} 751dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 752bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 753af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 754dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 755af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 7563c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 757af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 758af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 7595bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 760c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 7615bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 762883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 7635bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 7645bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 765bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 766cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getLoc(), S.Context)); 767af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 768af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 76976168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynnstatic void HandleMallocAttr(Decl *d, const AttributeList &Attr, Sema &S) { 770dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 77176168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn if (Attr.getNumArgs() != 0) { 77276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 77376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 77476168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 7751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7762cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 7771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 7782cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 779cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) MallocAttr(Attr.getLoc(), S.Context)); 7802cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 7812cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 782fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 783fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 7842cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 78576168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 78676168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 78734c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohmanstatic void HandleMayAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 78834c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman // check the attribute arguments. 78934c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman if (Attr.getNumArgs() != 0) { 79034c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 79134c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman return; 79234c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman } 79334c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 79434c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman d->addAttr(::new (S.Context) MayAliasAttr(Attr.getLoc(), S.Context)); 79534c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman} 79634c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 797a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopherstatic void HandleNoCommonAttr(Decl *d, const AttributeList &Attr, Sema &S) { 798a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher assert(Attr.isInvalid() == false); 799722109c1b7718d3e8aab075ce65007b372822199Eric Christopher if (isa<VarDecl>(d)) 800722109c1b7718d3e8aab075ce65007b372822199Eric Christopher d->addAttr(::new (S.Context) NoCommonAttr(Attr.getLoc(), S.Context)); 801722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 802722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 803883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 804a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 805a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 806a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopherstatic void HandleCommonAttr(Decl *d, const AttributeList &Attr, Sema &S) { 807a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher assert(Attr.isInvalid() == false); 808722109c1b7718d3e8aab075ce65007b372822199Eric Christopher if (isa<VarDecl>(d)) 809722109c1b7718d3e8aab075ce65007b372822199Eric Christopher d->addAttr(::new (S.Context) CommonAttr(Attr.getLoc(), S.Context)); 810722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 811722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 812883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 813a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 814a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 815711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void HandleNoReturnAttr(Decl *d, const AttributeList &attr, Sema &S) { 816711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (hasDeclarator(d)) return; 817711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 818711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) return; 819711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 820711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!isa<ObjCMethodDecl>(d)) { 821711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 822883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 823711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 824711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 825711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 826711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) NoReturnAttr(attr.getLoc(), S.Context)); 827711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 828711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 829711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckNoReturnAttr(const AttributeList &attr) { 830711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 831711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 832711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 833711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 834711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 835711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 836711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 837b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 838b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 839b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenekstatic void HandleAnalyzerNoReturnAttr(Decl *d, const AttributeList &Attr, 840b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek Sema &S) { 841b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 842b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 843b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 844b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 845545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 846e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 847b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 8486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 849b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 85019c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump if (!isFunctionOrMethod(d) && !isa<BlockDecl>(d)) { 85119c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump ValueDecl *VD = dyn_cast<ValueDecl>(d); 8523ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 8533ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 854e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 855e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 856b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 857883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 858b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 85919c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 8606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 861b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 862b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek d->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getLoc(), S.Context)); 8636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 86535cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 86635cc9627340b15232139b3c43fcde5973e7fad30John Thompsonstatic void HandleVecReturnAttr(Decl *d, const AttributeList &Attr, 86735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Sema &S) { 86835cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 86935cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 87035cc9627340b15232139b3c43fcde5973e7fad30John Thompson 871f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher According to the PPU ABI specifications, a class with a single member of 872f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher vector type is returned in memory when used as the return value of a function. 873f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher This results in inefficient code when implementing vector classes. To return 874f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher the value in a single vector register, add the vecreturn attribute to the 875f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher class definition. This attribute is also applicable to struct types. 87635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 87735cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 87835cc9627340b15232139b3c43fcde5973e7fad30John Thompson 87935cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 88035cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 88135cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 88235cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 88335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 88435cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 88535cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 88635cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 88735cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 88835cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 88935cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 89035cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 89101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<RecordDecl>(d)) { 89235cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 893883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedClass; 89435cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 89535cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 89635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 89735cc9627340b15232139b3c43fcde5973e7fad30John Thompson if (d->getAttr<VecReturnAttr>()) { 89835cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 89935cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 90035cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 90135cc9627340b15232139b3c43fcde5973e7fad30John Thompson 90201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson RecordDecl *record = cast<RecordDecl>(d); 90301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 90401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 90501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 90601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 90701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 90801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 90901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 91001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 91101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 91201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 91301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 91401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 915f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher for (RecordDecl::field_iterator iter = record->field_begin(); 916f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher iter != record->field_end(); iter++) { 91701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 91801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 91901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 92001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 92101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 92201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 92301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 924cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VecReturnAttr(Attr.getLoc(), S.Context)); 92535cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 92635cc9627340b15232139b3c43fcde5973e7fad30John Thompson 927bbd37c62e34db3f5a95c899723484a76c71d7757Sean Huntstatic void HandleDependencyAttr(Decl *d, const AttributeList &Attr, Sema &S) { 928bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt if (!isFunctionOrMethod(d) && !isa<ParmVarDecl>(d)) { 929bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 930883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrParameter; 931bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 932bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 933bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 934bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 935bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 93673798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 93773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 93873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 9393c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 94073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 94173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 942bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 943aec586056d8670c99ba7c4833be13e4eb123cddbJohn McCall if (!isa<VarDecl>(d) && !isa<ObjCIvarDecl>(d) && !isFunctionOrMethod(d) && 94457ad37823e198f977cac605dbfbaefb4daf325e9Chris Lattner !isa<TypeDecl>(d) && !isa<LabelDecl>(d)) { 945fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 946883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableFunctionOrLabel; 94773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 94873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 949bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 950cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UnusedAttr(Attr.getLoc(), S.Context)); 95173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 95273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 953b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 954b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 955b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 956b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 957b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 958b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 959bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 960b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 961186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 962b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 963b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 964b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 965b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 966b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 967883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 968b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 969b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 970bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 971cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) UsedAttr(Attr.getLoc(), S.Context)); 972b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 973b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 9743068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9753068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 976bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 977bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 9783068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 979bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 9803068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 9813068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 9823068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 9837a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 9843068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 985ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 986ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 987fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 9883c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 9893068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 9903068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 9913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 9923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 993bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 994c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 995fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 996883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 9973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 9983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 9993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1000f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) ConstructorAttr(Attr.getLoc(), S.Context, 1001f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 10023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 10033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 10043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 10053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1006bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1007bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 10083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1009bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 10103068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 10113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 10123068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 10137a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 10143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1015ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1016ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1017fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10183c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 10193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 10203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 10213068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 10223068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1023bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10246782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 1025fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1026883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 10273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 10283068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 10293068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1030f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) DestructorAttr(Attr.getLoc(), S.Context, 1031f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 10323068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 10333068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 1034803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1035951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1036951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1037bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1038c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1039c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1040951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1041c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian // Handle the case where deprecated attribute has a text message. 1042951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner llvm::StringRef Str; 1043951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1044951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1045c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (!SE) { 1046951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) 1047951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner << "deprecated"; 1048c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1049c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1050951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 10516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1052bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1053951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner d->addAttr(::new (S.Context) DeprecatedAttr(Attr.getLoc(), S.Context, Str)); 10546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 10556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1056bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1057951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1058951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1059bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1060bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 1061bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 1062951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1063c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian // Handle the case where unavailable attribute has a text message. 1064951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner llvm::StringRef Str; 1065951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1066951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1067c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (!SE) { 1068951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), 1069c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian diag::err_attribute_not_string) << "unavailable"; 1070c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian return; 1071c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1072951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 1073c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1074951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner d->addAttr(::new (S.Context) UnavailableAttr(Attr.getLoc(), S.Context, Str)); 1075bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 1076bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 1077803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 10786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1079545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 10803c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 10816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1083bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10847a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 10856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 10866b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1087bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 10886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 1089fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 10903c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 10916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1093bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1094c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer llvm::StringRef TypeStr = Str->getString(); 1095cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 1096bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1097c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 1098cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 1099c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 1100cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 1101c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 1102cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 1103c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 1104cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Protected; 11056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 110608631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 11076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1109bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1110cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) VisibilityAttr(Attr.getLoc(), S.Context, type)); 11116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1113d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCallstatic void HandleObjCMethodFamilyAttr(Decl *decl, const AttributeList &attr, 1114d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall Sema &S) { 1115d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); 1116d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (!method) { 1117d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_decl_type) 1118883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedMethod; 1119d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1120d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1121d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1122d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (attr.getNumArgs() != 0 || !attr.getParameterName()) { 1123d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (!attr.getParameterName() && attr.getNumArgs() == 1) { 1124d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall S.Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 1125d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall << "objc_method_family" << 1; 1126d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } else { 1127d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1128d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1129d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall attr.setInvalid(); 1130d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1131d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1132d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1133d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall llvm::StringRef param = attr.getParameterName()->getName(); 1134d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodFamilyAttr::FamilyKind family; 1135d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (param == "none") 1136d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_None; 1137d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "alloc") 1138d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_alloc; 1139d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "copy") 1140d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_copy; 1141d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "init") 1142d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_init; 1143d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "mutableCopy") 1144d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_mutableCopy; 1145d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "new") 1146d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_new; 1147d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else { 1148d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // Just warn and ignore it. This is future-proof against new 1149d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // families being used in system headers. 1150d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall S.Diag(attr.getParameterLoc(), diag::warn_unknown_method_family); 1151d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1152d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1153d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1154d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall decl->addAttr(new (S.Context) ObjCMethodFamilyAttr(attr.getLoc(), 1155d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall S.Context, family)); 1156d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall} 1157d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 11580db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 11590db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 11600db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 11610db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11620db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 11630db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1164bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11650db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 11660db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 11670db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 11680db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 11690db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1170bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1171cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getLoc(), S.Context)); 11720db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 11730db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 11740db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 1175fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 11762b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1177fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1178fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 11790db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 1180fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 1181fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 11826217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 1183fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 1184fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1185fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1186fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1187cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getLoc(), S.Context)); 1188fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 1189fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 1190bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 1191f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1192f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 11932b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1194f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1195f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1196f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1197f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 1198f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 1199f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1200f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1201f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1202cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) OverloadableAttr(Attr.getLoc(), S.Context)); 1203f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 1204f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 12059eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1206bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1207fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 12083c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 12099eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 12109eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1211bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12129eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 12133c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12149eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 12159eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1216bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1217cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 121892e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 12199eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 12209eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 1221fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 12223c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 12239eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 12249eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1225bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1226cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) BlocksAttr(Attr.getLoc(), S.Context, type)); 12279eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 12289eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 1229770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1230770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 1231770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 1232bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 1233770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1234bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1235bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1236770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 1237770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 12387a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 1239770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1240ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1241ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1242fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 12433c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1244770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1245770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1246770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 1247bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1248770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 1249fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1250fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1251770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1252770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1253770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1254770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1255770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 1256770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 12577a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(1); 1258770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1259ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1260ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1261fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 12623c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1263770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1264770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1265770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1266bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1267770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 1268770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1269770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1270fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1271fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1272770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1273770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1274770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1275770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1276770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 1277183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = FD->getType()->getAs<FunctionType>(); 1278897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 1279bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1280897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1281897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1282897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1283897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1284bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1285897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 12863bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1287770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1288bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1289770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 1290770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 12913bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1292770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 12932f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 12942f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (isa<BlockDecl>(d)) { 1295bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1296bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 12972f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 12982f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } else if (const VarDecl *V = dyn_cast<VarDecl>(d)) { 12992f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1300daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 1301bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(d) 1302f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 13032f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 13043bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 13053bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 13062f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 13072f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1308ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 13092f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1310883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 13112f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 13122f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1313770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1314fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1315883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1316770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1317770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1318f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) SentinelAttr(Attr.getLoc(), S.Context, sentinel, 1319f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher nullPos)); 1320770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1321770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1322026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 1323026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 1324026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 1325026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1326026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1327026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1328026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1329f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1330026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1331883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 1332026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1333026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1334bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1335f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1336f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1337f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1338f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1339f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1340f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1341f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1342f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1343f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1344f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1345f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1346f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1347cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getLoc(), S.Context)); 1348026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1349026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1350332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCallstatic void HandleWeakAttr(Decl *d, const AttributeList &attr, Sema &S) { 13516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1352332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (attr.getNumArgs() != 0) { 1353332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 13546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 13556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 13566e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1357332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!isa<VarDecl>(d) && !isa<FunctionDecl>(d)) { 1358332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1359883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedVariableOrFunction; 1360f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1361f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1362f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 1363332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall NamedDecl *nd = cast<NamedDecl>(d); 1364332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1365332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // 'weak' only applies to declarations with external linkage. 1366332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (hasEffectivelyInternalLinkage(nd)) { 1367332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(attr.getLoc(), diag::err_attribute_weak_static); 13686e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 13696e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1370bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1371332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall nd->addAttr(::new (S.Context) WeakAttr(attr.getLoc(), S.Context)); 13726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 13736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 13746e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 13756e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 13766e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 13776e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 13786e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 1379bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 13806e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 13816e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 13826e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 13836e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 13846e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 13856e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 138606a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis isDef = FD->hasBody(); 1387d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian } else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D)) { 1388d4edddde6d3966ad4a4f60d9af0f9dd36995495cFariborz Jahanian // We ignore weak import on properties and methods 13891c90f4dc686ab872013544664c797604a309c563Mike Stump return; 13905f8f8571c52dbf12fdefb15d2fedbcccb212c15cFariborz Jahanian } else if (!(S.LangOpts.ObjCNonFragileABI && isa<ObjCInterfaceDecl>(D))) { 1391c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian // Don't issue the warning for darwin as target; yet, ignore the attribute. 13923be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian if (S.Context.Target.getTriple().getOS() != llvm::Triple::Darwin || 1393c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian !isa<ObjCInterfaceDecl>(D)) 1394c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1395883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 13963be17941f1edff4843692066f9d33d438a517612Fariborz Jahanian return; 13976e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 13986e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 13996e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 14006e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 1401bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 14026e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 14036e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 14046e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 14056e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 14066e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1407cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakImportAttr(Attr.getLoc(), S.Context)); 14086e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 14096e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 14106f3d838867538638b9bbf412028e8537ae12f3e5Nate Begemanstatic void HandleReqdWorkGroupSize(Decl *D, const AttributeList &Attr, 14116f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman Sema &S) { 14126f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 14136f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 14142b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 14156f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 14166f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 14176f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 14186f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 14196f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 14207a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(i); 14216f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1422ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1423ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 14246f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 14256f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 14266f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 14276f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 14286f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 14296f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 1430cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getLoc(), S.Context, 1431cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 14326f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 14336f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 14346f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 1435026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 143617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 143717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 143817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 143917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 144017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 144117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 144217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 144317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 14447a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1445797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 144617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1447797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 144817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 144917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 14501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1451797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1452bb377edda2656752016a0bc01fe4f9f8b6f80e19Benjamin Kramer std::string Error = S.Context.Target.isValidSectionSpecifier(SE->getString()); 1453a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 1454a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 1455a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 1456797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 1457797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 14581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1459a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 1460a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 1461a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 1462a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 1463a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 1464a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 1465f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher D->addAttr(::new (S.Context) SectionAttr(Attr.getLoc(), S.Context, 1466f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 146717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 146817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 14696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1470803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 14716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1472545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 14733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 14746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1476bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1477cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoThrowAttr(Attr.getLoc(), S.Context)); 14786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 14796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1480232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1481232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1482232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 14833c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1484232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1485232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1486bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1487cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) ConstAttr(Attr.getLoc(), S.Context)); 1488232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1489232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1490232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1491232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1492232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 14933c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1494232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1495232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1496bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1497cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) PureAttr(Attr.getLoc(), S.Context)); 1498232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1499232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 1500f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1501bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1502f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1503f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1504f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1505bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1506f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1507f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1508f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1509f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1510bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1511f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 1512bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1513f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1514f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1515f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1516f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1517bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1518f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 1519c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 1520f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 1521f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis = S.LookupSingleName(S.TUScope, Attr.getParameterName(), 1522f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis Attr.getParameterLoc(), Sema::LookupOrdinaryName); 1523f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 1524f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << 1525f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1526f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1527f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1528bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1529f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1530f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 1531f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 1532f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_arg_not_function) 1533f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 1534f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1535f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1536f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1537f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 1538f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 1539f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_func_must_take_one_arg) 1540f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 1541f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1542f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1543bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 154489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 154589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 154689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 154789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1548b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), 1549b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor ParamTy, Ty) != Sema::Compatible) { 1550f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 155189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 155289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 155389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 155489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 1555bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1556cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) CleanupAttr(Attr.getLoc(), S.Context, FD)); 1557223ae5c26654e5fd7dacdafe43aff28a096ba63bArgyrios Kyrtzidis S.MarkDeclarationReferenced(Attr.getParameterLoc(), FD); 1558f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1559f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1560bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 1561bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1562bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void HandleFormatArgAttr(Decl *d, const AttributeList &Attr, Sema &S) { 15635b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 15645b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 15655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 15665b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 15675b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 15685b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1569883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 15705b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 15715b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 157207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 157307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 157407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 157507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 157607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 15775b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 157807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 15795b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 15807a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 15815b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 1582ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1583ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 15845b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 15855b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 15865b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 15875b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1588bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 15895b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 15905b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 15915b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 15925b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 15935b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1594bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 15955b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 1596bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 159707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 159807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (ArgIdx == 0) { 159907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 160007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "format_arg" << IdxExpr->getSourceRange(); 160107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 160207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 160307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth ArgIdx--; 160407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 160507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 16065b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 16075b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 1608bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16095b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 16105b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 16115b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 16125b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 16136217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 16145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 16155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1616bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 16175b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 16185b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1619bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 16205b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian Ty = getFunctionOrMethodResultType(d); 16215b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 16225b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 16235b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 16246217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 16255b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 16265b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 1627bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 16285b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 16295b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1630bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1631bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 163207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth d->addAttr(::new (S.Context) FormatArgAttr(Attr.getLoc(), S.Context, 163307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth Idx.getZExtValue())); 16345b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 16355b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 16362b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 16372b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 16382b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 16392b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 16402b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 16413c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 16422b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 16432b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 16442b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 16452b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 16462b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 16472b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarstatic FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { 16482b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 16492b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 16502b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 16512b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 16522b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 16532b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 16542b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 16552b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 16562b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 16572b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 16582b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 16592b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 1660cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "zcmn_err" || 1661cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "kprintf") // OpenBSD. 16622b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 16632b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1664bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 1665bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 16663c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 16673c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 16682b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 16692b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 16702b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1671521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 1672521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 1673521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanianstatic void HandleInitPriorityAttr(Decl *d, const AttributeList &Attr, 1674521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Sema &S) { 1675521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 1676521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1677521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1678521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1679521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1680b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!isa<VarDecl>(d) || S.getCurFunctionOrMethodDecl()) { 1681b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1682b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1683b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1684b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1685b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian QualType T = dyn_cast<VarDecl>(d)->getType(); 1686b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 1687b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 1688b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 1689b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1690b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1691b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1692b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1693b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1694521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 1695521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1696521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1697521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1698521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 16997a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *priorityExpr = Attr.getArg(0); 1700b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1701521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 1702521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 1703521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 1704521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1705521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 1706521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1707521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1708521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 17099f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 1710521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 1711521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 1712521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 1713521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1714521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1715521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1716f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) InitPriorityAttr(Attr.getLoc(), S.Context, 1717f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher prioritynum)); 1718521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 1719521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1720bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 1721bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1722803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 17236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1724545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1725fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 17263c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 17276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1730545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 17313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 17326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1735620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian if (!isFunctionOrMethodOrBlock(d) || !hasFunctionProto(d)) { 1736fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1737883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 17386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 174107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 174207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 174307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth bool HasImplicitThisParam = isInstanceMethod(d); 174407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(d) + HasImplicitThisParam; 17456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 17466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 174701eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Format = Attr.getParameterName()->getName(); 17486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 17502b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 17512b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 17522b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 17532b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 17542b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 17553c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 17563c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 17573c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 17583c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 17592b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 1760fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 176101eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 17626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 17667a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 1767803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1768ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1769ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1770fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 17713c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 17726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1776fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 17773c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 17786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 17796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 17806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 17826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 1783bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 17844a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 17854a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 178607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 178707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_format_attribute_implicit_this_format_string) 178807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << IdxExpr->getSourceRange(); 17894a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 17904a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 17914a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 17924a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 17931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 17953568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 17966b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 17972b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 1798085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1799fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1800fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1801085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1802085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 18032b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 1804390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1805390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1806803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1807390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1808fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1809fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 18106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1811bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 18126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 18136217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 1814390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1815fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1816fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 18176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 18217a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *FirstArgExpr = Attr.getArg(1); 1822803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1823ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 1824ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1825fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18263c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 18276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 18316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 18323568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 18336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 18346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1835803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 18366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18403c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 18413c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 18422b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 18436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1844fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1845fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 18466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 18496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1850fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 18513c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 18526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1855cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) FormatAttr(Attr.getLoc(), S.Context, Format, 1856cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 18572b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 18586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 18596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18600b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 18610b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 18626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1863545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 18643c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 18656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18680c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 18690c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 1870bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 18710c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 18720c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 18730c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 18740c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = dyn_cast<RecordDecl>(d); 18750c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 18760c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1877fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1878883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedUnion; 18796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18820c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 1883bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 18840c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 18850c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 18860c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 18870c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 188817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 188917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 18900c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 18910c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 18920c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 18930c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1894bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 18950c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 18960c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 189790cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 1898bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 189990cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 190090cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 19010c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 19020c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1903bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 19040c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 19050c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 19060c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 19070c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 19080c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 19090c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 19100c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 19110c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 1912bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 19130c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 1914bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 19150c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 19160c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 19170c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 1918bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 19190c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 19200c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 1921bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1922bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1923bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 19246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1925cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getLoc(), S.Context)); 19266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 19276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19280b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 19296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1930545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 19313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 19326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19347a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1935797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 1936bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 19376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 19386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 19396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 1940797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 19416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1943f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) AnnotateAttr(Attr.getLoc(), S.Context, 1944f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 19456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 19466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19474ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthstatic void HandleAlignedAttr(Decl *D, const AttributeList &Attr, Sema &S) { 19486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1949545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 19503c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 19516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1953bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1954bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 1955bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 1956bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 19576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1958545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 1959cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) AlignedAttr(Attr.getLoc(), S.Context, true, 0)); 19604ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 19614ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 19624ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 19637a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne S.AddAlignedAttr(Attr.getLoc(), D, Attr.getArg(0)); 19644ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 19654ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 19664ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, Expr *E) { 19674ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 19684ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 1969cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 19706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1972bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1973cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 197449e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 19754ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 19764ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 19774ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 197849e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 197949e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1980396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 19814ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 19824ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 1983396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1984396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1985396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 1986cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 1987cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 1988cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 1989cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Huntvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, TypeSourceInfo *TS) { 1990cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 1991cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 1992cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, false, TS)); 1993cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 19946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1995fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1996bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HandleModeAttr - This attribute modifies the width of a decl with primitive 1997bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 1998fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1999bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 2000bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 2001bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 20020b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 2003fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 2004fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 2005fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2006fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 2007fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 20083c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2009fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2010fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2011fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2012fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 2013fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 20140b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 2015fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2016fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2017210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 201801eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Str = Attr.getParameterName()->getName(); 2019fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2020fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 2021210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 2022210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 2023fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2024fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 2025fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 202673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 2027210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 2028fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 202973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 203073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 203173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 203273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 203373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 203473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 203573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 203673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 203773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 203873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 203973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 204073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 204173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 204273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 204373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 204473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2045fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2046fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 2047fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 2048fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 2049210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 20500b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 2051210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 20520b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 2053fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2054fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 2055210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 20560b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 2057fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2058fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2059fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2060fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 2061fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 2062fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 2063fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 2064fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 2065fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 2066fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 2067fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 2068fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2069fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 207073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2071183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 207273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 207373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 20742ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 207573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 207673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 207773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 207873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 207973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 208073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 208173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 208273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 208373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2084390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 2085390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 2086390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 2087390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 2088f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 2089f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 2090fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 2091fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 2092fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 20933c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 2094fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2095fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 20963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2097fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2098fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 209973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 210073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 210173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 210273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2103fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 21040b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 2105fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 21060b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 2107fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2108fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 210973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 211073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 211173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 211273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2113fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 21140b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 2115fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 21160b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 2117fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2118fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 2119fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 21200b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 2121fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 21220b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 2123fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 21240b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 2125fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2126fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 2127fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 21280b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 2129fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 2130aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 2131aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 2132aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2133aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 2134fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 2135aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 2136aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 2137aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2138aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 2139fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 214073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 214173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 214273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2143f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 2144f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 2145f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2146f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 2147f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 2148f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 2149f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 2150f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 2151f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 215273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2153fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2154fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 215573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 215673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 2157fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2158fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2159fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 2160ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 2161ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 2162a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 2163ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 2164fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 2165fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 21660744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 21671feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoDebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2168d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 2169d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 2170d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2171d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2172d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2173e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 21745bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 2175d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2176883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2177d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2178d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2179bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2180cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoDebugAttr(Attr.getLoc(), S.Context)); 2181d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 2182d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 21831feade8e520be483293dbf55eb57a51720899589Mike Stumpstatic void HandleNoInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 21845bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 21855bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 21865bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 21875bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 21885bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2189bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2190c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (!isa<FunctionDecl>(d)) { 21915bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2192883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 21935bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 21945bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2195bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2196cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) NoInlineAttr(Attr.getLoc(), S.Context)); 21975bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 21985bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 21997255a2d997b15beae82e627052fdb1b2474495c2Chris Lattnerstatic void HandleNoInstrumentFunctionAttr(Decl *d, const AttributeList &Attr, 22007255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner Sema &S) { 22017255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 22027255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (Attr.getNumArgs() != 0) { 22037255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 22047255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 22057255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 22067255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 22077255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (!isa<FunctionDecl>(d)) { 22087255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2209883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 22107255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 22117255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 22127255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2213f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher d->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getLoc(), 2214f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 22157255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 22167255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 2217ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleConstantAttr(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<VarDecl>(d)) { 2226ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2227883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2228ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2229ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2230ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2231ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getLoc(), S.Context)); 2232ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2233ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; 2234ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2235ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2236ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2237ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleDeviceAttr(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<FunctionDecl>(d) && !isa<VarDecl>(d)) { 2246ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2247883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 2248ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2249ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2250ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2251ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getLoc(), S.Context)); 2252ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2253ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; 2254ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2255ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2256ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2257ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleGlobalAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2258ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2259ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2260ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2261ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2262ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2263ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2264ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2265ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<FunctionDecl>(d)) { 2266ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2267883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2268ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2269ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2270ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 22712c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne FunctionDecl *FD = cast<FunctionDecl>(d); 22722c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (!FD->getResultType()->isVoidType()) { 2273723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); 22742c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { 22752c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 22762c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType() 22772c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), 22782c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne "void"); 22792c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } else { 22802c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 22812c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType(); 22822c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 22832c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne return; 22842c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 22852c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne 2286ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getLoc(), S.Context)); 2287ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2288ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; 2289ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2290ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2291ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2292ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleHostAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2293ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2294ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2295ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2296ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2297ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2298ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2299ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2300ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<FunctionDecl>(d)) { 2301ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2302883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2303ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2304ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2305ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2306ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDAHostAttr(Attr.getLoc(), S.Context)); 2307ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2308ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; 2309ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2310ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2311ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2312ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbournestatic void HandleSharedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2313ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2314ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2315ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2316ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2317ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2318ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2319ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2320ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (!isa<VarDecl>(d)) { 2321ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2322883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2323ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2324ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2325ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2326ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne d->addAttr(::new (S.Context) CUDASharedAttr(Attr.getLoc(), S.Context)); 2327ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2328ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; 2329ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2330ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2331ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 2332cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattnerstatic void HandleGNUInlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 233326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 233426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 233526e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 233626e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 233726e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2338bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2339c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 2340c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 234126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2342883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 234326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 234426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2345bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 23460130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 2347cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 2348c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 2349c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 2350bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2351cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt d->addAttr(::new (S.Context) GNUInlineAttr(Attr.getLoc(), S.Context)); 235226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 235326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 2354711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void HandleCallConvAttr(Decl *d, const AttributeList &attr, Sema &S) { 2355711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (hasDeclarator(d)) return; 2356711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2357711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // Diagnostic is emitted elsewhere: here we store the (valid) attr 2358e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 2359711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 2360711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckCallingConvAttr(attr, CC)) 2361711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2362e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2363711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!isa<ObjCMethodDecl>(d)) { 2364711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2365883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 2366711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2367711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2368711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2369711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 2370e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 2371711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) FastCallAttr(attr.getLoc(), S.Context)); 2372e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2373e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 2374711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) StdCallAttr(attr.getLoc(), S.Context)); 2375e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2376f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 2377711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) ThisCallAttr(attr.getLoc(), S.Context)); 237804633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 2379e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 2380711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) CDeclAttr(attr.getLoc(), S.Context)); 2381e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 238252fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2383711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) PascalAttr(attr.getLoc(), S.Context)); 238452fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 2385e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 2386e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 2387e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2388e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 2389e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 2390e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 2391f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbournestatic void HandleOpenCLKernelAttr(Decl *d, const AttributeList &Attr, Sema &S){ 2392f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne assert(Attr.isInvalid() == false); 2393f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne d->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getLoc(), S.Context)); 2394f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne} 2395f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 2396711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { 2397711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2398711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2399711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2400711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 0) { 2401711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2402711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2403711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2404ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 240555d3aaf9a537888734762170823daf750ea9036dEli Friedman 2406711c52bb20d0c69063b52a99826fb7d2835501f1John McCall // TODO: diagnose uses of these conventions on the wrong target. 2407711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 2408711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 2409711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 2410711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 2411711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; 2412711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: CC = CC_X86Pascal; break; 2413711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: llvm_unreachable("unexpected attribute kind"); return true; 2414711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2415711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2416711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2417711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 2418711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2419711c52bb20d0c69063b52a99826fb7d2835501f1John McCallstatic void HandleRegparmAttr(Decl *d, const AttributeList &attr, Sema &S) { 2420711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (hasDeclarator(d)) return; 2421711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2422711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned numParams; 2423711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckRegparmAttr(attr, numParams)) 2424711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2425711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2426711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (!isa<ObjCMethodDecl>(d)) { 2427711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2428883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 2429ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2430ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 243155d3aaf9a537888734762170823daf750ea9036dEli Friedman 2432711c52bb20d0c69063b52a99826fb7d2835501f1John McCall d->addAttr(::new (S.Context) RegparmAttr(attr.getLoc(), S.Context, numParams)); 2433711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 2434711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2435711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Checks a regparm attribute, returning true if it is ill-formed and 2436711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// otherwise setting numParams to the appropriate value. 2437711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckRegparmAttr(const AttributeList &attr, unsigned &numParams) { 2438711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2439711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2440711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2441711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.getNumArgs() != 1) { 2442711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2443711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2444711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2445711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2446711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2447711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Expr *NumParamsExpr = attr.getArg(0); 244855d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 2449ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 2450711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { 2451711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_argument_not_int) 245255d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 2453711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2454711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 245555d3aaf9a537888734762170823daf750ea9036dEli Friedman } 245655d3aaf9a537888734762170823daf750ea9036dEli Friedman 2457711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (Context.Target.getRegParmMax() == 0) { 2458711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 245955d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 2460711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2461711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 246255d3aaf9a537888734762170823daf750ea9036dEli Friedman } 246355d3aaf9a537888734762170823daf750ea9036dEli Friedman 2464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall numParams = NumParams.getZExtValue(); 2465711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (numParams > Context.Target.getRegParmMax()) { 2466711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_regparm_invalid_number) 2467711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 2468711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2469711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 247055d3aaf9a537888734762170823daf750ea9036dEli Friedman } 247155d3aaf9a537888734762170823daf750ea9036dEli Friedman 2472711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2473ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 2474ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 24757b381985353304a7723acb05911ff91634fa1f27Peter Collingbournestatic void HandleLaunchBoundsAttr(Decl *d, const AttributeList &Attr, Sema &S){ 24767b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (S.LangOpts.CUDA) { 24777b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne // check the attribute arguments. 24787b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { 2479bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall // FIXME: 0 is not okay. 2480bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 24817b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 24827b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 24837b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 24847b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (!isFunctionOrMethod(d)) { 24857b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2486883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 24877b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 24887b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 24897b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 24907b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MaxThreadsExpr = Attr.getArg(0); 24917b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MaxThreads(32); 24927b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MaxThreadsExpr->isTypeDependent() || 24937b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreadsExpr->isValueDependent() || 24947b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { 24957b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 24967b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); 24977b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 24987b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 24997b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 25007b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MinBlocks(32); 25017b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() > 1) { 25027b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MinBlocksExpr = Attr.getArg(1); 25037b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MinBlocksExpr->isTypeDependent() || 25047b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocksExpr->isValueDependent() || 25057b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { 25067b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 25077b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); 25087b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 25097b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 25107b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 25117b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 25127b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne d->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getLoc(), S.Context, 25137b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreads.getZExtValue(), 25147b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocks.getZExtValue())); 25157b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } else { 25167b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; 25177b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 25187b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne} 25197b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 25200744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 2521b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 2522b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 2523b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2524c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { 2525c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return type->isObjCObjectPointerType() || S.Context.isObjCNSObjectType(type); 2526c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2527c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { 2528c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return type->isPointerType() || isValidSubjectOfNSAttribute(S, type); 2529c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2530c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2531c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic void HandleNSConsumedAttr(Decl *d, const AttributeList &attr, Sema &S) { 2532c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall ParmVarDecl *param = dyn_cast<ParmVarDecl>(d); 2533c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!param) { 2534c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 2535883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << SourceRange(attr.getLoc()) << attr.getName() << ExpectedParameter; 2536c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 2537c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2538c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2539c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK, cf; 2540c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (attr.getKind() == AttributeList::AT_ns_consumed) { 2541c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, param->getType()); 2542c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 2543c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } else { 2544c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, param->getType()); 2545c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 2546c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2547c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2548c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 2549c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) 2550c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall << SourceRange(attr.getLoc()) << attr.getName() << cf; 2551c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 2552c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2553c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2554c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (cf) 2555c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall param->addAttr(::new (S.Context) CFConsumedAttr(attr.getLoc(), S.Context)); 2556c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall else 2557c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall param->addAttr(::new (S.Context) NSConsumedAttr(attr.getLoc(), S.Context)); 2558c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2559c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2560c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic void HandleNSConsumesSelfAttr(Decl *d, const AttributeList &attr, 2561c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall Sema &S) { 2562c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!isa<ObjCMethodDecl>(d)) { 2563c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 2564883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << SourceRange(attr.getLoc()) << attr.getName() << ExpectedMethod; 2565c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 2566c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2567c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2568c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) NSConsumesSelfAttr(attr.getLoc(), S.Context)); 2569c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2570c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2571c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic void HandleNSReturnsRetainedAttr(Decl *d, const AttributeList &attr, 2572b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek Sema &S) { 2573b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2574c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall QualType returnType; 2575bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 25765dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) 2577c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = MD->getResultType(); 25785dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) 2579c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = FD->getResultType(); 25805dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 258121531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_attribute_wrong_decl_type) 2582c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall << SourceRange(attr.getLoc()) << attr.getName() 2583883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedFunctionOrMethod; 2584b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2585b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 2586bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2587c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK; 2588c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool cf; 2589c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall switch (attr.getKind()) { 2590c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall default: llvm_unreachable("invalid ownership attribute"); return; 2591c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 2592c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_retained: 2593c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_not_retained: 2594c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, returnType); 2595c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 2596c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 2597c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2598c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_retained: 2599c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_not_retained: 2600c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, returnType); 2601c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 2602c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 2603c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2604c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2605c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 260621531fa592cd76e5d3df839ce469bea918404ac8Ted Kremenek S.Diag(d->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 2607c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall << SourceRange(attr.getLoc()) 2608c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall << attr.getName() << isa<ObjCMethodDecl>(d) << cf; 2609bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 26105dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 2611bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2612c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall switch (attr.getKind()) { 2613b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 2614b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 2615b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2616c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 2617c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(attr.getLoc(), 2618c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Context)); 2619c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 262031c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2621c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(attr.getLoc(), 2622f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 262331c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 262431c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 2625c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(attr.getLoc(), 2626f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 262731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 2628b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2629c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) CFReturnsRetainedAttr(attr.getLoc(), 2630f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 2631b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2632b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2633c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall d->addAttr(::new (S.Context) NSReturnsRetainedAttr(attr.getLoc(), 2634f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 2635b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2636b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 2637b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 2638b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2639f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 2640f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 264111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_dllexport || 264211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_uuid; 264311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet} 264411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 264511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 264611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet// Microsoft specific attribute handlers. 264711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 264811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 264911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichetstatic void HandleUuidAttr(Decl *d, const AttributeList &Attr, Sema &S) { 265011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet if (S.LangOpts.Microsoft || S.LangOpts.Borland) { 265111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet // check the attribute arguments. 265211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet if (Attr.getNumArgs() != 1) { 265311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 265411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet return; 265511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet } 265611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Expr *Arg = Attr.getArg(0); 265711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 2658d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (Str == 0 || Str->isWide()) { 2659d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 2660d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet << "uuid" << 1; 2661d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2662d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2663d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2664d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet llvm::StringRef StrRef = Str->getString(); 2665d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2666d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && 2667d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet StrRef.back() == '}'; 2668d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2669d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // Validate GUID length. 2670d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (IsCurly && StrRef.size() != 38) { 2671d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2672d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2673d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2674d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (!IsCurly && StrRef.size() != 36) { 2675d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2676d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2677d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2678d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2679d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or 2680d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" 2681f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson llvm::StringRef::iterator I = StrRef.begin(); 2682f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson if (IsCurly) // Skip the optional '{' 2683f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson ++I; 2684f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson 2685f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson for (int i = 0; i < 36; ++i) { 2686d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (i == 8 || i == 13 || i == 18 || i == 23) { 2687d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (*I != '-') { 2688d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2689d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2690d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2691d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else if (!isxdigit(*I)) { 2692d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2693d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2694d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2695d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet I++; 2696d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 269711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 269811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet d->addAttr(::new (S.Context) UuidAttr(Attr.getLoc(), S.Context, 269911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Str->getString())); 2700d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else 270111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; 2702f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 2703f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 2704b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 27050744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 27060744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 27070744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 270860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournestatic void ProcessNonInheritableDeclAttr(Scope *scope, Decl *D, 270960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList &Attr, Sema &S) { 271060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne switch (Attr.getKind()) { 271160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: HandleDeviceAttr (D, Attr, S); break; 271260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: HandleHostAttr (D, Attr, S); break; 271360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 271460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne default: 271560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 271660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne } 271760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 2718e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 271960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournestatic void ProcessInheritableDeclAttr(Scope *scope, Decl *D, 272060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList &Attr, Sema &S) { 2721803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 272263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek case AttributeList::AT_IBAction: HandleIBAction(D, Attr, S); break; 2723857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutlet: HandleIBOutlet(D, Attr, S); break; 2724857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 2725857e918a8a40deb128840308a318bf623d68295fTed Kremenek HandleIBOutletCollection(D, Attr, S); break; 2726803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 2727ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 27286e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 27294211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 27304211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 2731bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 2732bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 2733803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 273460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: 273560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: 273660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable: 273760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // Ignore, this is a non-inheritable attribute, handled 273860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // by ProcessNonInheritableDeclAttr. 273960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 27407725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 27417725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 2742bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 2743af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 2744b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 2745bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump HandleAnalyzerNoReturnAttr (D, Attr, S); break; 27467725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 2747bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 27487725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt HandleDependencyAttr (D, Attr, S); break; 2749a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher case AttributeList::AT_common: HandleCommonAttr (D, Attr, S); break; 2750ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne case AttributeList::AT_constant: HandleConstantAttr (D, Attr, S); break; 27517725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_constructor: HandleConstructorAttr (D, Attr, S); break; 27527725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_deprecated: HandleDeprecatedAttr (D, Attr, S); break; 27537725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_destructor: HandleDestructorAttr (D, Attr, S); break; 27543068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 27559cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor HandleExtVectorTypeAttr(scope, D, Attr, S); 27563068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 27577725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 27587725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_format_arg: HandleFormatArgAttr (D, Attr, S); break; 2759ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne case AttributeList::AT_global: HandleGlobalAttr (D, Attr, S); break; 27607725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_gnu_inline: HandleGNUInlineAttr (D, Attr, S); break; 27617b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne case AttributeList::AT_launch_bounds: 27627b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne HandleLaunchBoundsAttr(D, Attr, S); 27637b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne break; 27647725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 27657725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_malloc: HandleMallocAttr (D, Attr, S); break; 276634c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman case AttributeList::AT_may_alias: HandleMayAliasAttr (D, Attr, S); break; 2767a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher case AttributeList::AT_nocommon: HandleNoCommonAttr (D, Attr, S); break; 27687725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 2769dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 2770dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 2771dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 2772dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek HandleOwnershipAttr (D, Attr, S); break; 2773dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar case AttributeList::AT_naked: HandleNakedAttr (D, Attr, S); break; 27747725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 27757725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 2776ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne case AttributeList::AT_shared: HandleSharedAttr (D, Attr, S); break; 277735cc9627340b15232139b3c43fcde5973e7fad30John Thompson case AttributeList::AT_vecreturn: HandleVecReturnAttr (D, Attr, S); break; 2778b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2779b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 2780c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_consumed: 2781c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_consumed: HandleNSConsumedAttr (D, Attr, S); break; 2782c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_consumes_self: 2783c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall HandleNSConsumesSelfAttr(D, Attr, S); break; 2784c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2785c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 278631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 278731c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 2788b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 2789b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 2790b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek HandleNSReturnsRetainedAttr(D, Attr, S); break; 2791b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 27926f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 27936f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman HandleReqdWorkGroupSize(D, Attr, S); break; 27946f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 2795521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 2796521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian HandleInitPriorityAttr(D, Attr, S); break; 2797521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 27987725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 27997725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 28007725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unavailable: HandleUnavailableAttr (D, Attr, S); break; 28017725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 28027725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 28037725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_visibility: HandleVisibilityAttr (D, Attr, S); break; 2804026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 2805026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 28067725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 280711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola case AttributeList::AT_weakref: HandleWeakRefAttr (D, Attr, S); break; 28087725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_weak_import: HandleWeakImportAttr (D, Attr, S); break; 2809803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 2810803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 2811803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 28120db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 28130db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 28140db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 2815d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall case AttributeList::AT_objc_method_family: 2816d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall HandleObjCMethodFamilyAttr(D, Attr, S); 2817d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall break; 28187725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 28197725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 28207725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 28217725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 28227725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 28237725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 28247725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_nodebug: HandleNoDebugAttr (D, Attr, S); break; 28257725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_noinline: HandleNoInlineAttr (D, Attr, S); break; 28267725e67639fa2fe74f8775b7ed884a076ffdbffcSean Hunt case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 2827bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 282805f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 282905f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 28307255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 28317255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner HandleNoInstrumentFunctionAttr(D, Attr, S); 28327255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 283304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 283404a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 283504a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 2836f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 283752fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 2838e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara HandleCallConvAttr(D, Attr, S); 283904a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 2840f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne case AttributeList::AT_opencl_kernel_function: 2841f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne HandleOpenCLKernelAttr(D, Attr, S); 2842f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne break; 284311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet case AttributeList::AT_uuid: 284411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet HandleUuidAttr(D, Attr, S); 284511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet break; 2846803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 284782d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 284882d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 284982d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 28507d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 28517d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 2852803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 2853803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2854803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2855803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 285660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 285760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the attribute applies to decls. If the attribute is a type attribute, just 285860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 285960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 286060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournestatic void ProcessDeclAttribute(Scope *scope, Decl *D, 286160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList &Attr, Sema &S, 286260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 286360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isInvalid()) 286460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 286560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 286660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 286760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // FIXME: Try to deal with other __declspec attributes! 286860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 286960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 287060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (NonInheritable) 287160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessNonInheritableDeclAttr(scope, D, Attr, S); 287260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 287360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable) 287460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessInheritableDeclAttr(scope, D, Attr, S); 287560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 287660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 2877803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 2878803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 2879f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christophervoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, 288060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList *AttrList, 288160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 288211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 288360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttribute(S, D, *l, *this, NonInheritable, Inheritable); 288411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 288511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 288611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 288711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 288811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 288960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 289011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 2891dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 289211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 2893803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 2894803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 2895803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 2896e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 2897e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 28981eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II) { 28997b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 2900e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 2901e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 2902e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 2903e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn FD->getLocation(), DeclarationName(II), 2904a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FD->getType(), FD->getTypeSourceInfo()); 2905b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (FD->getQualifier()) { 2906b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall FunctionDecl *NewFD = cast<FunctionDecl>(NewD); 2907c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewFD->setQualifierInfo(FD->getQualifierLoc()); 2908b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2909e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 2910e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 2911e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn VD->getLocation(), II, 2912a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 291316573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 291416573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 2915b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 2916b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 2917c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewVD->setQualifierInfo(VD->getQualifierLoc()); 2918b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 2919e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2920e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 2921e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2922e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 2923e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 2924e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 29257b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 2926c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 2927c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 2928c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 2929c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 2930c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias()); 2931cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 2932cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 2933cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2934c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 2935c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 2936c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 2937c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 2938c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 2939c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 2940c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 2941c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 2942cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 2943e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2944e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 2945e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 29460744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 29470744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 29480744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 294960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournevoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, 295060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 2951d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // It's valid to "forward-declare" #pragma weak, in which case we 2952d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // have to do this. 295360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && !WeakUndeclaredIdentifiers.empty()) { 2954d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 2955d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (IdentifierInfo *Id = ND->getIdentifier()) { 2956d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I 2957d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall = WeakUndeclaredIdentifiers.find(Id); 2958d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { 2959d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall WeakInfo W = I->second; 2960d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall DeclApplyPragmaWeak(S, ND, W); 2961d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall WeakUndeclaredIdentifiers[Id] = W; 2962d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall } 2963e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2964e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2965e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 2966e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 29670744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 29687f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) 296960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 2970bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 29710744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 29720744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 29730744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 29740744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 29750744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 29760744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 297760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 2978bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 29790744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 29800744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 298160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 29820744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 298354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 2984eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// This duplicates a vector push_back but hides the need to know the 2985eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// size of the type. 2986eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::add(const DelayedDiagnostic &diag) { 2987eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize <= StackCapacity); 2988eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 2989eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Grow the stack if necessary. 2990eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackSize == StackCapacity) { 2991eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall unsigned newCapacity = 2 * StackCapacity + 2; 2992eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall char *newBuffer = new char[newCapacity * sizeof(DelayedDiagnostic)]; 2993eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall const char *oldBuffer = (const char*) Stack; 2994eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 2995eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackCapacity) 2996eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall memcpy(newBuffer, oldBuffer, StackCapacity * sizeof(DelayedDiagnostic)); 2997eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 2998eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall delete[] oldBuffer; 2999eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Stack = reinterpret_cast<sema::DelayedDiagnostic*>(newBuffer); 3000eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall StackCapacity = newCapacity; 3001eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall } 3002eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3003eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize < StackCapacity); 3004eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall new (&Stack[StackSize++]) DelayedDiagnostic(diag); 300554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 300654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3007eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::popParsingDecl(Sema &S, ParsingDeclState state, 3008eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Decl *decl) { 3009eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics &DD = S.DelayedDiagnostics; 301054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3011eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Check the invariants. 3012eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.StackSize >= state.SavedStackSize); 3013eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(state.SavedStackSize >= DD.ActiveStackBase); 3014eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.ParsingDepth > 0); 301554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3016eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Drop the parsing depth. 3017eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.ParsingDepth--; 301854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3019eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // If there are no active diagnostics, we're done. 3020eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DD.StackSize == DD.ActiveStackBase) 3021eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall return; 302258e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 30232f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 30242f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 3025eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (decl) { 3026eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // We emit all the active diagnostics, not just those starting 3027eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // from the saved state. The idea is this: we get one push for a 30282f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 30292f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 30302f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 30312f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 30322f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 3033eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = DD.ActiveStackBase, e = DD.StackSize; i != e; ++i) { 3034eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostic &diag = DD.Stack[i]; 3035eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (diag.Triggered) 30362f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 30372f514480c448708ec382a684cf5e035d3a827ec8John McCall 3038eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall switch (diag.Kind) { 30392f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 3040eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedDeprecationCheck(diag, decl); 30412f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 30422f514480c448708ec382a684cf5e035d3a827ec8John McCall 30432f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 3044eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedAccessCheck(diag, decl); 30452f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 304654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 304754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 304854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 304954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 305058e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 3051eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = state.SavedStackSize, e = DD.StackSize; i != e; ++i) 3052eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.Stack[i].destroy(); 305358e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 3054eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.StackSize = state.SavedStackSize; 30552f514480c448708ec382a684cf5e035d3a827ec8John McCall} 30562f514480c448708ec382a684cf5e035d3a827ec8John McCall 30572f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 30582f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 30592f514480c448708ec382a684cf5e035d3a827ec8John McCall if (D->hasAttr<DeprecatedAttr>()) 30602f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 30612f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 30622f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 30632f514480c448708ec382a684cf5e035d3a827ec8John McCall} 30642f514480c448708ec382a684cf5e035d3a827ec8John McCall 30659c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 30662f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 30672f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 30682f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 30692f514480c448708ec382a684cf5e035d3a827ec8John McCall 30702f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 3071ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!DD.getDeprecationMessage().empty()) 3072c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_message) 3073ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName() 3074ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationMessage(); 3075c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 3076c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated) 3077ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName(); 307854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 307954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3080ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramervoid Sema::EmitDeprecationWarning(NamedDecl *D, llvm::StringRef Message, 30818e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian SourceLocation Loc, 3082743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne bool UnknownObjCClass) { 308354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 3084eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DelayedDiagnostics.shouldDelayDiagnostics()) { 3085eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, Message)); 308654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 308754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 308854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 308954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 309054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 309154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 3092ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!Message.empty()) 3093c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() 3094c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian << Message; 30958e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else { 3096743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne if (!UnknownObjCClass) 30978e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 30988e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else 30998e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); 31008e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian } 310154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 3102