SemaDeclAttr.cpp revision 1b03c8719e2e45cf2769430335d7e71f18e6634a
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" 20f85e193739c953358c865005855253af4f68a497John McCall#include "clang/Basic/SourceManager.h" 21fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 2219510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 239c3087b0b0bea2fd782205c1274ebfc4290265e0John McCall#include "clang/Sema/DelayedDiagnostic.h" 24797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner#include "llvm/ADT/StringExtras.h" 256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 269c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallusing namespace sema; 276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 28883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// These constants match the enumerated choices of 29883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall/// warn_attribute_wrong_decl_type and err_attribute_wrong_decl_type. 30883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCallenum { 31883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunction, 32883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedUnion, 33883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariableOrFunction, 34883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionOrMethod, 35883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameter, 36883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedParameterOrMethod, 37883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrBlock, 38883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClassOrVirtualMethod, 39883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedFunctionMethodOrParameter, 40883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClass, 41883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVirtualMethod, 42883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedClassMember, 43883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariable, 44883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedMethod, 45883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall ExpectedVariableFunctionOrLabel 46883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall}; 47883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall 48e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 49e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 50e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 51e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 5287c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic const FunctionType *getFunctionType(const Decl *D, 53a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek bool blocksToo = true) { 546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 5587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const ValueDecl *decl = dyn_cast<ValueDecl>(D)) 566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 5787c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const FieldDecl *decl = dyn_cast<FieldDecl>(D)) 586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 5987c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (const TypedefNameDecl* decl = dyn_cast<TypedefNameDecl>(D)) 606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 63bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 656217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<PointerType>()->getPointeeType(); 66755f9d2c65f75d539a2440e5de82d881e4417397Fariborz Jahanian else if (blocksToo && Ty->isBlockPointerType()) 676217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek Ty = Ty->getAs<BlockPointerType>()->getPointeeType(); 68d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 69183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall return Ty->getAs<FunctionType>(); 706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 723568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 733568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 743568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 75d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes/// isFunction - Return true if the given decl has function 76a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// type (function or function-typed variable). 7787c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunction(const Decl *D) { 7887c44604325578b8de07d768391c1c9432404f5aChandler Carruth return getFunctionType(D, false) != NULL; 79a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek} 80a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek 81a18d7d80eb914a48521f0b7b25057fb8a69c4652Ted Kremenek/// isFunctionOrMethod - Return true if the given decl has function 82d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 83d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 8487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethod(const Decl *D) { 8587c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isFunction(D)|| isa<ObjCMethodDecl>(D); 86d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 873568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 88620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethodOrBlock - Return true if the given decl has function 89620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// type (function or function-typed variable) or an Objective-C 90620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// method or a block. 9187c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodOrBlock(const Decl *D) { 9287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethod(D)) 93620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return true; 94620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian // check for block is more involved. 9587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 96620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian QualType Ty = V->getType(); 97620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian return Ty->isBlockPointerType(); 98620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian } 9987c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<BlockDecl>(D); 100620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian} 101620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian 102711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Return true if the given decl has a declarator that should have 103711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// been processed by Sema::GetTypeForDeclarator. 10487c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasDeclarator(const Decl *D) { 105f85e193739c953358c865005855253af4f68a497John McCall // In some sense, TypedefDecl really *ought* to be a DeclaratorDecl. 10687c44604325578b8de07d768391c1c9432404f5aChandler Carruth return isa<DeclaratorDecl>(D) || isa<BlockDecl>(D) || isa<TypedefNameDecl>(D) || 10787c44604325578b8de07d768391c1c9432404f5aChandler Carruth isa<ObjCPropertyDecl>(D); 108711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 109711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 110d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 111d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 112620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian/// isFunctionOrMethod or isFunctionOrMethodOrBlock. 11387c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool hasFunctionProto(const Decl *D) { 11487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 11572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 116620d89ca4eb5dcb6be13a42aafa4849eaa9b834bFariborz Jahanian else { 11787c44604325578b8de07d768391c1c9432404f5aChandler Carruth assert(isa<ObjCMethodDecl>(D) || isa<BlockDecl>(D)); 118d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 119d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 1203568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1213568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 122d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 123d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 124d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 12587c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic unsigned getFunctionOrMethodNumArgs(const Decl *D) { 12687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 12772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 12887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 129d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getNumParams(); 13087c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_size(); 1313568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1323568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 13387c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodArgType(const Decl *D, unsigned Idx) { 13487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 13572564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 13687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 137d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian return BD->getParamDecl(Idx)->getType(); 138bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 13987c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->param_begin()[Idx]->getType(); 1403568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1413568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 14287c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic QualType getFunctionOrMethodResultType(const Decl *D) { 14387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) 1445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return cast<FunctionProtoType>(FnTy)->getResultType(); 14587c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->getResultType(); 1465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 1475b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 14887c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isFunctionOrMethodVariadic(const Decl *D) { 14987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionType *FnTy = getFunctionType(D)) { 15072564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 1513568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 15287c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const BlockDecl *BD = dyn_cast<BlockDecl>(D)) 153db9a0aec04cfd95830d3745b17b0bab5b87b16d1Ted Kremenek return BD->isVariadic(); 154d66f22d9f8423579322a6dd16587ed52b0a58834Fariborz Jahanian else { 15587c44604325578b8de07d768391c1c9432404f5aChandler Carruth return cast<ObjCMethodDecl>(D)->isVariadic(); 1563568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 1573568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 1583568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 15987c44604325578b8de07d768391c1c9432404f5aChandler Carruthstatic bool isInstanceMethod(const Decl *D) { 16087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const CXXMethodDecl *MethodDecl = dyn_cast<CXXMethodDecl>(D)) 16107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return MethodDecl->isInstance(); 16207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return false; 16307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth} 16407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 1656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 166183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const ObjCObjectPointerType *PT = T->getAs<ObjCObjectPointerType>(); 167b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 1686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 169bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 170506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *Cls = PT->getObjectType()->getInterface(); 171506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (!Cls) 1726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 173bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 174506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall IdentifierInfo* ClsName = Cls->getIdentifier(); 175bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 181085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 1826217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = T->getAs<PointerType>(); 183085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 184085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 185085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 1866217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const RecordType *RT = PT->getPointeeType()->getAs<RecordType>(); 187085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 188085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 189bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 190085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 191465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara if (RD->getTagKind() != TTK_Struct) 192085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 193085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 194085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 195085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 196085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 197e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 198e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 199e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 200e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 2013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 2023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 2033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 2043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 2051b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleExtVectorTypeAttr(Sema &S, Scope *scope, Decl *D, 2061b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 20787c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *tDecl = dyn_cast<TypedefNameDecl>(D); 208545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 209803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 210545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 2116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 212bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 2149cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2159cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor Expr *sizeExpr; 2169cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2179cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Special case where the argument is a template id. 2189cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getParameterName()) { 219f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall CXXScopeSpec SS; 220f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall UnqualifiedId id; 221f7a1a744eba4b29ceb0f20af8f34515d892fdd64John McCall id.setIdentifier(Attr.getParameterName(), Attr.getLoc()); 2224ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 2234ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor ExprResult Size = S.ActOnIdExpression(scope, SS, id, false, false); 2244ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor if (Size.isInvalid()) 2254ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor return; 2264ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor 2274ac01401b1ec602a1f58c217544d3dcb5fcbd7f1Douglas Gregor sizeExpr = Size.get(); 2289cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } else { 2299cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // check the attribute arguments. 2309cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (Attr.getNumArgs() != 1) { 2319cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 2329cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor return; 2339cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor } 2347a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne sizeExpr = Attr.getArg(0); 2356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2369cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor 2379cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Instantiate/Install the vector type, and let Sema build the type for us. 2389cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // This will run the reguired checks. 2399ae2f076ca5ab1feb3ba95629099ec2319833701John McCall QualType T = S.BuildExtVectorType(curType, sizeExpr, Attr.getLoc()); 2409cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor if (!T.isNull()) { 241ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve the old source info. 242a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall tDecl->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(T)); 243bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2449cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor // Remember this typedef decl, we will need it later for diagnostics. 2459cdda0cf8528e3d595be9bfa002f0450074beb4dDouglas Gregor S.ExtVectorDecls.push_back(tDecl); 2466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2491b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePackedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 251545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2523c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 255bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 25687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 257cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt TD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 25887c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FieldDecl *FD = dyn_cast<FieldDecl>(D)) { 2596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 262803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 263fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 26408631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 266cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt FD->addAttr(::new (S.Context) PackedAttr(Attr.getLoc(), S.Context)); 2676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2683c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2711b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMsStructAttr(Sema &S, Decl *D, const AttributeList &Attr) { 27287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (TagDecl *TD = dyn_cast<TagDecl>(D)) 273c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian TD->addAttr(::new (S.Context) MsStructAttr(Attr.getLoc(), S.Context)); 274c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian else 275c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 276c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian} 277c1a0a73c1fad684dd23e9aade02c4e00dbaeaee6Fariborz Jahanian 2781b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBAction(Sema &S, Decl *D, const AttributeList &Attr) { 27996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 28096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2813c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 28296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 28396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 284bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 28563e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBAction attributes only apply to instance methods. 28687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 28763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (MD->isInstanceMethod()) { 28887c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) IBActionAttr(Attr.getLoc(), S.Context)); 28963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 29063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 29163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 2924ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_ibaction) << Attr.getName(); 29363e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek} 29463e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 2951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutlet(Sema &S, Decl *D, const AttributeList &Attr) { 29663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // check the attribute arguments. 29763e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek if (Attr.getNumArgs() > 0) { 29863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 29963e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 30063e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek } 30163e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 30263e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek // The IBOutlet attributes only apply to instance variables of 303efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek // Objective-C classes. 30487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<ObjCIvarDecl>(D) || isa<ObjCPropertyDecl>(D)) { 30587c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) IBOutletAttr(Attr.getLoc(), S.Context)); 30663e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek return; 307efbddd23173ea5633cc8a004f1014c68c3ac6593Ted Kremenek } 30863e5d7c85299134f088033614afd9eb213c50b48Ted Kremenek 3094ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 31096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 31196329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 3121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleIBOutletCollection(Sema &S, Decl *D, 3131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 314857e918a8a40deb128840308a318bf623d68295fTed Kremenek 315857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The iboutletcollection attribute can have zero or one arguments. 316a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (Attr.getParameterName() && Attr.getNumArgs() > 0) { 317857e918a8a40deb128840308a318bf623d68295fTed Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 318857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 319857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 320857e918a8a40deb128840308a318bf623d68295fTed Kremenek 321857e918a8a40deb128840308a318bf623d68295fTed Kremenek // The IBOutletCollection attributes only apply to instance variables of 322857e918a8a40deb128840308a318bf623d68295fTed Kremenek // Objective-C classes. 32387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!(isa<ObjCIvarDecl>(D) || isa<ObjCPropertyDecl>(D))) { 3244ee2bb12dcb8f8b543a3581537a4bc5752106ce2Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_iboutlet) << Attr.getName(); 325857e918a8a40deb128840308a318bf623d68295fTed Kremenek return; 326857e918a8a40deb128840308a318bf623d68295fTed Kremenek } 32787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) 3283a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!VD->getType()->getAs<ObjCObjectPointerType>()) { 3293a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 3303a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << VD->getType() << 0; 3313a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 3323a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 33387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) 3343a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian if (!PD->getType()->getAs<ObjCObjectPointerType>()) { 3353a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_object_type) 3363a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian << PD->getType() << 1; 3373a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian return; 3383a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian } 3393a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 340a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian IdentifierInfo *II = Attr.getParameterName(); 341a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!II) 342a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian II = &S.Context.Idents.get("id"); 3433a3400b4fdf73887e9d8b4372334bc24a858702fFariborz Jahanian 344b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = S.getTypeName(*II, Attr.getLoc(), 34587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.getScopeForContext(D->getDeclContext()->getParent())); 346a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!TypeRep) { 347a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 348a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 349a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 350b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall QualType QT = TypeRep.get(); 351a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // Diagnose use of non-object type in iboutletcollection attribute. 352a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // FIXME. Gnu attribute extension ignores use of builtin types in 353a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // attributes. So, __attribute__((iboutletcollection(char))) will be 354a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian // treated as __attribute__((iboutletcollection())). 355a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian if (!QT->isObjCIdType() && !QT->isObjCClassType() && 356a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian !QT->isObjCObjectType()) { 357a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_iboutletcollection_type) << II; 358a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian return; 359a8fb24fa3151567056f6125999cea69e39604f35Fariborz Jahanian } 36087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) IBOutletCollectionAttr(Attr.getLoc(), S.Context, 361cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt QT)); 362857e918a8a40deb128840308a318bf623d68295fTed Kremenek} 363857e918a8a40deb128840308a318bf623d68295fTed Kremenek 364d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruthstatic void possibleTransparentUnionPointerType(QualType &T) { 36568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (const RecordType *UT = T->getAsUnionType()) 36668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (UT && UT->getDecl()->hasAttr<TransparentUnionAttr>()) { 36768fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian RecordDecl *UD = UT->getDecl(); 36868fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian for (RecordDecl::field_iterator it = UD->field_begin(), 36968fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian itend = UD->field_end(); it != itend; ++it) { 37068fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian QualType QT = it->getType(); 37168fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian if (QT->isAnyPointerType() || QT->isBlockPointerType()) { 37268fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian T = QT; 37368fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian return; 37468fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 37568fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 37668fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian } 37768fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian} 37868fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 3791b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNonNullAttr(Sema &S, Decl *D, const AttributeList &Attr) { 380bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // GCC ignores the nonnull attribute on K&R style function prototypes, so we 381bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ignore it as well 38287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 383fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 384883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 385eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 386eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 387bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 38807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 38907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 39087c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 39187c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 392eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 393eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 394eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 395bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 396eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 397eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 398bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 399bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 400eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 4017a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Ex = *I; 402eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 403ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (Ex->isTypeDependent() || Ex->isValueDependent() || 404ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 405fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 406fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 407eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 408eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 409bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 410eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 411bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 412eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 413fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 41430bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 415eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 416eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 417bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 418465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 41907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 42007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 42107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 42207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_attribute_invalid_implicit_this_argument) 42307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "nonnull" << Ex->getSourceRange(); 42407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 42507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 42607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 42707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 428eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 429eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 43087c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x).getNonReferenceType(); 431d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 43268fe96adf787abd1e98016da0f38e26644faf7b9Fariborz Jahanian 433dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 434eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 435c9ef405559c90fc98b016d00aeae8afbc31c6bf6Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_nonnull_pointers_only) 436fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 4377fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 438eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 439bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 440eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 441eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 442bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 443bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // If no arguments were specified to __attribute__((nonnull)) then all pointer 444bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // arguments have a nonnull attribute. 4457fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 44687c44604325578b8de07d768391c1c9432404f5aChandler Carruth for (unsigned I = 0, E = getFunctionOrMethodNumArgs(D); I != E; ++I) { 44787c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, I).getNonReferenceType(); 448d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth possibleTransparentUnionPointerType(T); 449dbfe99ef39163fd3574332673ee175c2bb6ef3caTed Kremenek if (T->isAnyPointerType() || T->isBlockPointerType()) 450d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 45146bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 452bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 453ee1c08c88649aaea9dd53272a726cd23de533215Ted Kremenek // No pointer arguments? 45460acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (NonNullArgs.empty()) { 45560acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // Warn the trivial case only if attribute is not coming from a 45660acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian // macro instantiation. 45760acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian if (Attr.getLoc().isFileID()) 45860acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 4597fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 46060acea49c1343e5494edb6da20cac6f9d0b6cfb0Fariborz Jahanian } 461eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 4627fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 4637fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 4647fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 465dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 46687c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NonNullAttr(Attr.getLoc(), S.Context, start, 467cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt size)); 468eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 469eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 4701b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOwnershipAttr(Sema &S, Decl *D, const AttributeList &AL) { 471dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // This attribute must be applied to a function declaration. 472dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The first argument to the attribute must be a string, 473dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // the name of the resource, for example "malloc". 474dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The following arguments must be argument indexes, the arguments must be 475dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // of integer type for Returns, otherwise of pointer type. 476dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // The difference between Holds and Takes is that a pointer may still be used 4772a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // after being held. free() should be __attribute((ownership_takes)), whereas 4782a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // a list append function may well be __attribute((ownership_holds)). 479dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 480dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!AL.getParameterName()) { 481dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_n_not_string) 482dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << 1; 483dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 484dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 485dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Figure out our Kind, and check arguments while we're at it. 486cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt OwnershipAttr::OwnershipKind K; 4872a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose switch (AL.getKind()) { 4882a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_takes: 489cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Takes; 490dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 491dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 492dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 493dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 4942a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 4952a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_holds: 496cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Holds; 497dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() < 1) { 498dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 499dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 500dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5012a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 5022a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose case AttributeList::AT_ownership_returns: 503cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt K = OwnershipAttr::Returns; 504dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 505dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) 506dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getNumArgs() + 1; 507dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 508dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5092a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose break; 5102a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 5112a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose // This should never happen given how we are called. 5122a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 513dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 514dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 51587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunction(D) || !hasFunctionProto(D)) { 516883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall S.Diag(AL.getLoc(), diag::warn_attribute_wrong_decl_type) 517883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << AL.getName() << ExpectedFunction; 518dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 519dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 520dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 52107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 52207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 52387c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 52487c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 525dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 526dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::StringRef Module = AL.getParameterName()->getName(); 527dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 528dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Normalize the argument, __foo__ becomes foo. 529dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (Module.startswith("__") && Module.endswith("__")) 530dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek Module = Module.substr(2, Module.size() - 4); 531dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 532dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::SmallVector<unsigned, 10> OwnershipArgs; 533dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 5342a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose for (AttributeList::arg_iterator I = AL.arg_begin(), E = AL.arg_end(); I != E; 5352a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose ++I) { 536dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 5377a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = *I; 538dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 539dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 540dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 541dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_not_int) 542dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << IdxExpr->getSourceRange(); 543dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 544dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 545dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 546dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 547dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 548dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (x > NumArgs || x < 1) { 549dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_attribute_argument_out_of_bounds) 550dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << AL.getName()->getName() << x << IdxExpr->getSourceRange(); 551dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 552dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 553dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek --x; 55407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 55507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (x == 0) { 55607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(AL.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 55707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "ownership" << IdxExpr->getSourceRange(); 55807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 55907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 56007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth --x; 56107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 56207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 563dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek switch (K) { 564cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Takes: 565cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Holds: { 566dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument a pointer type? 56787c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = getFunctionOrMethodArgType(D, x); 568dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (!T->isAnyPointerType() && !T->isBlockPointerType()) { 569dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // FIXME: Should also highlight argument in decl. 570dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 571cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << ((K==OwnershipAttr::Takes)?"ownership_takes":"ownership_holds") 572dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "pointer" 573dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 574dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek continue; 575dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 576dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 577dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 578cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt case OwnershipAttr::Returns: { 579dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (AL.getNumArgs() > 1) { 580dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Is the function argument an integer type? 5817a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = AL.getArg(0); 582dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::APSInt ArgNum(32); 583dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() 584dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek || !IdxExpr->isIntegerConstantExpr(ArgNum, S.Context)) { 585dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek S.Diag(AL.getLoc(), diag::err_ownership_type) 586dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << "ownership_returns" << "integer" 587dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek << IdxExpr->getSourceRange(); 588dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek return; 589dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 590dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 591dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek break; 592dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 5932a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose default: 5942a479929f70d32f626778ef6e70ef46d3a37f74eJordy Rose llvm_unreachable("Unknown ownership attribute"); 595dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } // switch 596dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 597dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek // Check we don't have a conflict with another ownership attribute. 598cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (specific_attr_iterator<OwnershipAttr> 59987c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<OwnershipAttr>(), 60087c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<OwnershipAttr>(); 601cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt i != e; ++i) { 602cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if ((*i)->getOwnKind() != K) { 603cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt for (const unsigned *I = (*i)->args_begin(), *E = (*i)->args_end(); 604cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt I!=E; ++I) { 605cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (x == *I) { 606cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attributes_are_not_compatible) 607cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt << AL.getName()->getName() << "ownership_*"; 608dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 609dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 610dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 611dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 612dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek OwnershipArgs.push_back(x); 613dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 614dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 615dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned* start = OwnershipArgs.data(); 616dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek unsigned size = OwnershipArgs.size(); 617dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek llvm::array_pod_sort(start, start + size); 618cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 619cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt if (K != OwnershipAttr::Returns && OwnershipArgs.empty()) { 620cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt S.Diag(AL.getLoc(), diag::err_attribute_wrong_number_arguments) << 2; 621cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 622dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek } 623cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 62487c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) OwnershipAttr(AL.getLoc(), S.Context, K, Module, 625cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt start, size)); 626dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek} 627dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek 628332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// Whether this declaration has internal linkage for the purposes of 629332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall/// things that want to complain about things not have internal linkage. 630332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCallstatic bool hasEffectivelyInternalLinkage(NamedDecl *D) { 631332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall switch (D->getLinkage()) { 632332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case NoLinkage: 633332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case InternalLinkage: 634332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 635332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 636332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // Template instantiations that go from external to unique-external 637332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // shouldn't get diagnosed. 638332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case UniqueExternalLinkage: 639332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return true; 640332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 641332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall case ExternalLinkage: 642332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return false; 643332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 644332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall llvm_unreachable("unknown linkage kind!"); 64511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return false; 64611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 64711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 6481b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakRefAttr(Sema &S, Decl *D, const AttributeList &Attr) { 64911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Check the attribute arguments. 65011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() > 1) { 65111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 65211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 65311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 65411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 65587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 656332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 657883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 658332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall return; 659332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall } 660332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 66187c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 662332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 66311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc rejects 66411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // class c { 66511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 66611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int b() __attribute__((weakref ("f3"))); 66711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // }; 66811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // and ignores the attributes of 66911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // void f(void) { 67011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a __attribute__((weakref ("v2"))); 67111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // } 67211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // we reject them 67387c44604325578b8de07d768391c1c9432404f5aChandler Carruth const DeclContext *Ctx = D->getDeclContext()->getRedeclContext(); 6747a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl if (!Ctx->isFileContext()) { 6757a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_global_context) << 676332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall nd->getNameAsString(); 6777a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return; 67811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 67911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 68011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // The GCC manual says 68111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 68211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // At present, a declaration to which `weakref' is attached can only 68311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // be `static'. 68411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 68511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // It also says 68611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 68711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Without a TARGET, 68811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // given as an argument to `weakref' or to `alias', `weakref' is 68911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // equivalent to `weak'. 69011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // 69111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // gcc 4.4.1 will accept 69211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weakref)); 69311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // as 69411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // int a7 __attribute__((weak)); 69511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // This looks like a bug in gcc. We reject that for now. We should revisit 69611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // it if this behaviour is actually used. 69711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 698332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (!hasEffectivelyInternalLinkage(nd)) { 699332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall S.Diag(Attr.getLoc(), diag::err_attribute_weakref_not_static); 70011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 70111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 70211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 70311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC rejects 70411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static ((alias ("y"), weakref)). 70511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // Should we? How to check that weakref is before or after alias? 70611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 70711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Attr.getNumArgs() == 1) { 7087a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 70911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Arg = Arg->IgnoreParenCasts(); 71011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 71111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 71211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola if (Str == 0 || Str->isWide()) { 71311e8ce7380856abee188b237c2600272df2ed09dRafael Espindola S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 71411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola << "weakref" << 1; 71511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 71611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 71711e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC will accept anything as the argument of weakref. Should we 71811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // check for an existing decl? 71987c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, 720f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 72111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 72211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 72387c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) WeakRefAttr(Attr.getLoc(), S.Context)); 72411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola} 72511e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 7261b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 7276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 728545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 7293c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 7306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 732bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7337a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 7346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 7356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 736bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 7376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 738fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 7393c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 7406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 742bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 743db57a4cdb0a6abf3239f3a794a900ce312c5887bDaniel Dunbar if (S.Context.Target.getTriple().isOSDarwin()) { 744f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola S.Diag(Attr.getLoc(), diag::err_alias_not_supported_on_darwin); 745f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola return; 746f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola } 747f5fe2925b87cf382f2f13983c81679e38067122bRafael Espindola 7486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 749bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 75087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) AliasAttr(Attr.getLoc(), S.Context, 751f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher Str->getString())); 7526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNakedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 755dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 756dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar if (Attr.getNumArgs() != 0) { 757dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 758dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 759dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 760dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 76187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 762dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 763883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 764dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar return; 765dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar } 766dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 76787c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NakedAttr(Attr.getLoc(), S.Context)); 768dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar} 769dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar 7701b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlwaysInlineAttr(Sema &S, Decl *D, 7711b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 772dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 773831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 7743c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 775af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 776af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 7775bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 77887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 7795bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 780883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 7815bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 7825bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 783bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 78487c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) AlwaysInlineAttr(Attr.getLoc(), S.Context)); 785af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 786af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 7871b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMallocAttr(Sema &S, Decl *D, const AttributeList &Attr) { 788dd0cb22bd62e1e835327f478a2dbf0b8fa439713Daniel Dunbar // Check the attribute arguments. 789831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 79076168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 79176168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn return; 79276168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn } 7931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 79487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 7951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType RetTy = FD->getResultType(); 7962cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek if (RetTy->isAnyPointerType() || RetTy->isBlockPointerType()) { 79787c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) MallocAttr(Attr.getLoc(), S.Context)); 7982cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek return; 7992cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek } 800fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn } 801fd6ad3cf9c8fc6904bd5f33212207aa69743fd45Ryan Flynn 8022cff7d16fe58e6d6447ec9cad2af083beb20d6b5Ted Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_malloc_pointer_only); 80376168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn} 80476168e289ca4b307259e3bc9b3353f03b05bb6b9Ryan Flynn 8051b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleMayAliasAttr(Sema &S, Decl *D, const AttributeList &Attr) { 80634c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman // check the attribute arguments. 80734c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman if (Attr.getNumArgs() != 0) { 80834c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 80934c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman return; 81034c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman } 81134c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 81287c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) MayAliasAttr(Attr.getLoc(), S.Context)); 81334c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman} 81434c26300b384286c544e0b9fd45e7a3648ac79e3Dan Gohman 8151b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 816a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher assert(Attr.isInvalid() == false); 81787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 81887c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NoCommonAttr(Attr.getLoc(), S.Context)); 819722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 820722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 821883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 822a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 823a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 8241b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCommonAttr(Sema &S, Decl *D, const AttributeList &Attr) { 825a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher assert(Attr.isInvalid() == false); 82687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isa<VarDecl>(D)) 82787c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CommonAttr(Attr.getLoc(), S.Context)); 828722109c1b7718d3e8aab075ce65007b372822199Eric Christopher else 829722109c1b7718d3e8aab075ce65007b372822199Eric Christopher S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 830883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 831a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher} 832a6cf1e709b96865210b81bd611d41e9a2d41500aEric Christopher 8331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoReturnAttr(Sema &S, Decl *D, const AttributeList &attr) { 83487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 835711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 836711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (S.CheckNoReturnAttr(attr)) return; 837711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 83887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 839711c52bb20d0c69063b52a99826fb7d2835501f1John McCall S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type) 840883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << attr.getName() << ExpectedFunctionOrMethod; 841711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 842711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 843711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 84487c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NoReturnAttr(attr.getLoc(), S.Context)); 845711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 846711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 847711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckNoReturnAttr(const AttributeList &attr) { 848831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (attr.hasParameterOrArguments()) { 849711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 850711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 851711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 852711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 853711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 854711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 855b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek} 856b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 8571b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnalyzerNoReturnAttr(Sema &S, Decl *D, 8581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 859b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 860b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // The checking path for 'noreturn' and 'analyzer_noreturn' are different 861b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek // because 'analyzer_noreturn' does not impact the type. 862b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 863545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 864e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 865b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 8666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 867b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 86887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<BlockDecl>(D)) { 86987c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *VD = dyn_cast<ValueDecl>(D); 8703ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump if (VD == 0 || (!VD->getType()->isBlockPointerType() 8713ee77640c722a70ab7e0181f36dc2af21cab3d23Mike Stump && !VD->getType()->isFunctionPointerType())) { 872e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara S.Diag(Attr.getLoc(), 873e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara Attr.isCXX0XAttribute() ? diag::err_attribute_wrong_decl_type 874b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek : diag::warn_attribute_wrong_decl_type) 875883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 876b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek return; 87719c30c00e5e01e4608a43c7deb504f343f09e46dMike Stump } 8786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 879b56c1cc8ca593f832ca58d682876259c2ed9bec2Ted Kremenek 88087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) AnalyzerNoReturnAttr(Attr.getLoc(), S.Context)); 8816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 88335cc9627340b15232139b3c43fcde5973e7fad30John Thompson// PS3 PPU-specific. 8841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVecReturnAttr(Sema &S, Decl *D, const AttributeList &Attr) { 88535cc9627340b15232139b3c43fcde5973e7fad30John Thompson/* 88635cc9627340b15232139b3c43fcde5973e7fad30John Thompson Returning a Vector Class in Registers 88735cc9627340b15232139b3c43fcde5973e7fad30John Thompson 888f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher According to the PPU ABI specifications, a class with a single member of 889f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher vector type is returned in memory when used as the return value of a function. 890f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher This results in inefficient code when implementing vector classes. To return 891f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher the value in a single vector register, add the vecreturn attribute to the 892f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher class definition. This attribute is also applicable to struct types. 89335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 89435cc9627340b15232139b3c43fcde5973e7fad30John Thompson Example: 89535cc9627340b15232139b3c43fcde5973e7fad30John Thompson 89635cc9627340b15232139b3c43fcde5973e7fad30John Thompson struct Vector 89735cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 89835cc9627340b15232139b3c43fcde5973e7fad30John Thompson __vector float xyzw; 89935cc9627340b15232139b3c43fcde5973e7fad30John Thompson } __attribute__((vecreturn)); 90035cc9627340b15232139b3c43fcde5973e7fad30John Thompson 90135cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector Add(Vector lhs, Vector rhs) 90235cc9627340b15232139b3c43fcde5973e7fad30John Thompson { 90335cc9627340b15232139b3c43fcde5973e7fad30John Thompson Vector result; 90435cc9627340b15232139b3c43fcde5973e7fad30John Thompson result.xyzw = vec_add(lhs.xyzw, rhs.xyzw); 90535cc9627340b15232139b3c43fcde5973e7fad30John Thompson return result; // This will be returned in a register 90635cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 90735cc9627340b15232139b3c43fcde5973e7fad30John Thompson*/ 90887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<RecordDecl>(D)) { 90935cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 910883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedClass; 91135cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 91235cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 91335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 91487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (D->getAttr<VecReturnAttr>()) { 91535cc9627340b15232139b3c43fcde5973e7fad30John Thompson S.Diag(Attr.getLoc(), diag::err_repeat_attribute) << "vecreturn"; 91635cc9627340b15232139b3c43fcde5973e7fad30John Thompson return; 91735cc9627340b15232139b3c43fcde5973e7fad30John Thompson } 91835cc9627340b15232139b3c43fcde5973e7fad30John Thompson 91987c44604325578b8de07d768391c1c9432404f5aChandler Carruth RecordDecl *record = cast<RecordDecl>(D); 92001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson int count = 0; 92101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 92201add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!isa<CXXRecordDecl>(record)) { 92301add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 92401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 92501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 92601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 92701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if (!cast<CXXRecordDecl>(record)->isPOD()) { 92801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_pod_record); 92901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 93001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 93101add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 932f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher for (RecordDecl::field_iterator iter = record->field_begin(); 933f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher iter != record->field_end(); iter++) { 93401add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson if ((count == 1) || !iter->getType()->isVectorType()) { 93501add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson S.Diag(Attr.getLoc(), diag::err_attribute_vecreturn_only_vector_member); 93601add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson return; 93701add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 93801add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson count++; 93901add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson } 94001add59bc8fd178960ad61169bc01566b0d6614cJohn Thompson 94187c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) VecReturnAttr(Attr.getLoc(), S.Context)); 94235cc9627340b15232139b3c43fcde5973e7fad30John Thompson} 94335cc9627340b15232139b3c43fcde5973e7fad30John Thompson 9441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDependencyAttr(Sema &S, Decl *D, const AttributeList &Attr) { 94587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) && !isa<ParmVarDecl>(D)) { 946bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 947883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrParameter; 948bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt return; 949bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt } 950bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // FIXME: Actually store the attribute on the declaration 951bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt} 952bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 9531b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnusedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 95473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 955831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 9563c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 95773798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 95873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 959bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 96087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<ObjCIvarDecl>(D) && !isFunctionOrMethod(D) && 96187c44604325578b8de07d768391c1c9432404f5aChandler Carruth !isa<TypeDecl>(D) && !isa<LabelDecl>(D)) { 962fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 963883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableFunctionOrLabel; 96473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 96573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 966bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 96787c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) UnusedAttr(Attr.getLoc(), S.Context)); 96873798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 96973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 9701b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUsedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 971b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 972831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 973b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 974b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 975b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 976bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 97787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (const VarDecl *VD = dyn_cast<VarDecl>(D)) { 978186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 979b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 980b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 981b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 98287c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (!isFunctionOrMethod(D)) { 983b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 984883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 985b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 986b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 987bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 98887c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) UsedAttr(Attr.getLoc(), S.Context)); 989b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 990b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 9911b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 9923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 993bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 994bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 9953068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 996bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 9973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 9983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 9993068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 10007a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 10013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1002ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1003ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1004fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 10063068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 10073068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 10083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 10093068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1010bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 101187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1012fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1013883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 10143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 10153068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 10163068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 101787c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) ConstructorAttr(Attr.getLoc(), S.Context, 1018f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 10193068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 10203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 10211b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDestructorAttr(Sema &S, Decl *D, const AttributeList &Attr) { 10223068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 1023bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall if (Attr.getNumArgs() > 1) { 1024bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 10253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 1026bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 10273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 10283068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 10293068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 10307a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 10313068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 1032ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1033ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1034fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10353c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 10363068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 10373068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 10383068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 10393068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 1040bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 104187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 1042fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1043883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 10443068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 10453068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 10463068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 104787c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) DestructorAttr(Attr.getLoc(), S.Context, 1048f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher priority)); 10493068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 10503068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 10511b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeprecatedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1052951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1053951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1054bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1055c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1056c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1057951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1058c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian // Handle the case where deprecated attribute has a text message. 1059951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner llvm::StringRef Str; 1060951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1061951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1062c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian if (!SE) { 1063951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), diag::err_attribute_not_string) 1064951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner << "deprecated"; 1065c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian return; 1066c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian } 1067951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 10686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1069bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 107087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) DeprecatedAttr(Attr.getLoc(), S.Context, Str)); 10716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 10726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10731b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUnavailableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1074951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner unsigned NumArgs = Attr.getNumArgs(); 1075951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs > 1) { 1076bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 1; 1077bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 1078bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 1079951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner 1080c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian // Handle the case where unavailable attribute has a text message. 1081951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner llvm::StringRef Str; 1082951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner if (NumArgs == 1) { 1083951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(Attr.getArg(0)); 1084c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian if (!SE) { 1085951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner S.Diag(Attr.getArg(0)->getLocStart(), 1086c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian diag::err_attribute_not_string) << "unavailable"; 1087c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian return; 1088c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 1089951bbb2a6d9641ea11a6fe81cba429152a055b7cChris Lattner Str = SE->getString(); 1090c784dc1caf0df288a383700f7b57772103b3adabFariborz Jahanian } 109187c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) UnavailableAttr(Attr.getLoc(), S.Context, Str)); 1092bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 1093bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 10941b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAvailabilityAttr(Sema &S, Decl *D, 10951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 10960a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor IdentifierInfo *Platform = Attr.getParameterName(); 10970a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor SourceLocation PlatformLoc = Attr.getParameterLoc(); 10980a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 10990a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor llvm::StringRef PlatformName 11000a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor = AvailabilityAttr::getPrettyPlatformName(Platform->getName()); 11010a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (PlatformName.empty()) { 11020a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(PlatformLoc, diag::warn_availability_unknown_platform) 11030a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << Platform; 11040a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 11050a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor PlatformName = Platform->getName(); 11060a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 11070a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 11080a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Introduced = Attr.getAvailabilityIntroduced(); 11090a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Deprecated = Attr.getAvailabilityDeprecated(); 11100a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AvailabilityChange Obsoleted = Attr.getAvailabilityObsoleted(); 1111b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor bool IsUnavailable = Attr.getUnavailableLoc().isValid(); 11120a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 11130a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor // Ensure that Introduced < Deprecated < Obsoleted (although not all 11140a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor // of these steps are needed). 11150a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Deprecated.isValid() && 11160a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor !(Introduced.Version < Deprecated.Version)) { 11170a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 11180a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << PlatformName << Deprecated.Version.getAsString() 11190a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 11200a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 11210a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 11220a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 11230a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Introduced.isValid() && Obsoleted.isValid() && 11240a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor !(Introduced.Version < Obsoleted.Version)) { 11250a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Introduced.KeywordLoc, diag::warn_availability_version_ordering) 11260a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 11270a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 0 << Introduced.Version.getAsString(); 11280a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 11290a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 11300a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 11310a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (Deprecated.isValid() && Obsoleted.isValid() && 11320a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor !(Deprecated.Version < Obsoleted.Version)) { 11330a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Deprecated.KeywordLoc, diag::warn_availability_version_ordering) 11340a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 2 << PlatformName << Obsoleted.Version.getAsString() 11350a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << 1 << Deprecated.Version.getAsString(); 11360a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return; 11370a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 11380a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 113987c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) AvailabilityAttr(Attr.getLoc(), S.Context, 11400a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Platform, 11410a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Introduced.Version, 11420a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Deprecated.Version, 1143b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Obsoleted.Version, 1144b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor IsUnavailable)); 11450a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor} 11460a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 11471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleVisibilityAttr(Sema &S, Decl *D, const AttributeList &Attr) { 11486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1149545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 11503c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 11516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1153bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11547a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *Arg = Attr.getArg(0); 11556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 11566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 1157bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 11586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 1159fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 11603c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 11616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1163bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1164c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer llvm::StringRef TypeStr = Str->getString(); 1165cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt VisibilityAttr::VisibilityType type; 1166bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1167c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer if (TypeStr == "default") 1168cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Default; 1169c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "hidden") 1170cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; 1171c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "internal") 1172cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Hidden; // FIXME 1173c96f49417b2039d6227b042cd2d975f0869df79dBenjamin Kramer else if (TypeStr == "protected") 1174cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt type = VisibilityAttr::Protected; 11756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 117608631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 11776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1179bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 118087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) VisibilityAttr(Attr.getLoc(), S.Context, type)); 11816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCMethodFamilyAttr(Sema &S, Decl *decl, 11841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1185d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodDecl *method = dyn_cast<ObjCMethodDecl>(decl); 1186d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (!method) { 118787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_decl_type) 1188883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedMethod; 1189d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1190d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1191d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 119287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 0 || !Attr.getParameterName()) { 119387c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!Attr.getParameterName() && Attr.getNumArgs() == 1) { 119487c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 1195d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall << "objc_method_family" << 1; 1196d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } else { 119787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1198d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 119987c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 1200d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1201d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1202d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 120387c44604325578b8de07d768391c1c9432404f5aChandler Carruth llvm::StringRef param = Attr.getParameterName()->getName(); 1204d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall ObjCMethodFamilyAttr::FamilyKind family; 1205d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall if (param == "none") 1206d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_None; 1207d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "alloc") 1208d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_alloc; 1209d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "copy") 1210d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_copy; 1211d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "init") 1212d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_init; 1213d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "mutableCopy") 1214d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_mutableCopy; 1215d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else if (param == "new") 1216d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall family = ObjCMethodFamilyAttr::OMF_new; 1217d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall else { 1218d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // Just warn and ignore it. This is future-proof against new 1219d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall // families being used in system headers. 122087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getParameterLoc(), diag::warn_unknown_method_family); 1221d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall return; 1222d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall } 1223d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 1224f85e193739c953358c865005855253af4f68a497John McCall if (family == ObjCMethodFamilyAttr::OMF_init && 1225f85e193739c953358c865005855253af4f68a497John McCall !method->getResultType()->isObjCObjectPointerType()) { 1226f85e193739c953358c865005855253af4f68a497John McCall S.Diag(method->getLocation(), diag::err_init_method_bad_return_type) 1227f85e193739c953358c865005855253af4f68a497John McCall << method->getResultType(); 1228f85e193739c953358c865005855253af4f68a497John McCall // Ignore the attribute. 1229f85e193739c953358c865005855253af4f68a497John McCall return; 1230f85e193739c953358c865005855253af4f68a497John McCall } 1231f85e193739c953358c865005855253af4f68a497John McCall 123287c44604325578b8de07d768391c1c9432404f5aChandler Carruth method->addAttr(new (S.Context) ObjCMethodFamilyAttr(Attr.getLoc(), 1233f85e193739c953358c865005855253af4f68a497John McCall S.Context, family)); 1234d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall} 1235d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall 12361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCExceptionAttr(Sema &S, Decl *D, 12371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 12380db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 12390db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 12400db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 12410db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1242bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12430db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 12440db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 12450db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 12460db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 12470db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 1248bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1249cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCExceptionAttr(Attr.getLoc(), S.Context)); 12500db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 12510db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 12521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCNSObject(Sema &S, Decl *D, const AttributeList &Attr) { 1253fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 12542b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1255fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1256fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1257162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 1258fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 1259fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 12606217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !T->getAs<PointerType>()->getPointeeType()->isRecordType()) { 1261fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 1262fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 1263fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1264fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 1265cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ObjCNSObjectAttr(Attr.getLoc(), S.Context)); 1266fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 1267fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 1268bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stumpstatic void 12691b03c8719e2e45cf2769430335d7e71f18e6634aChandler CarruthhandleOverloadableAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1270f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 12712b7baf0816a40af3fde3a3e174192a549b785a50John McCall S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1272f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1273f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1274f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1275f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 1276f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 1277f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 1278f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 1279f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 1280cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) OverloadableAttr(Attr.getLoc(), S.Context)); 1281f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 1282f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 12831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleBlocksAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1284bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1285fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 12863c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 12879eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 12889eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1289bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 12909eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 12913c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12929eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 12939eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1294bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1295cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt BlocksAttr::BlockType type; 129692e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 12979eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 12989eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 1299fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 13003c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 13019eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 13029eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 1303bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 130487c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) BlocksAttr(Attr.getLoc(), S.Context, type)); 13059eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 13069eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 13071b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSentinelAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1308770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 1309770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 1310bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 1311770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1312bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1313bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1314770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 1315770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 13167a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(0); 1317770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1318ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1319ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1320fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 13213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 1322770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1323770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1324770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 1325bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1326770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 1327fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 1328fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1329770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1330770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1331770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1332770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 1333770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 1334770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 13357a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(1); 1336770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 1337ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1338ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(Idx, S.Context)) { 1339fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 13403c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 1341770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1342770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1343770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 1344bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1345770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 1346770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 1347770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 1348fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 1349fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 1350770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1351770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1352770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 1353770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 135487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 1355183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = FD->getType()->getAs<FunctionType>(); 1356897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 1357bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1358897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 1359897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 1360897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 1361897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 1362bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1363897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 13643bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1365770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1366bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 136787c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) { 1368770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 13693bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << 0; 1370770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 13712f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 137287c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (isa<BlockDecl>(D)) { 1373bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Note! BlockDecl is typeless. Variadic diagnostics will be issued by the 1374bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // caller. 13752f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian ; 137687c44604325578b8de07d768391c1c9432404f5aChandler Carruth } else if (const VarDecl *V = dyn_cast<VarDecl>(D)) { 13772f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian QualType Ty = V->getType(); 1378daf0415583e33d5d279197c65e9227c1ed92474bFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) { 137987c44604325578b8de07d768391c1c9432404f5aChandler Carruth const FunctionType *FT = Ty->isFunctionPointerType() ? getFunctionType(D) 1380f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher : Ty->getAs<BlockPointerType>()->getPointeeType()->getAs<FunctionType>(); 13812f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian if (!cast<FunctionProtoType>(FT)->isVariadic()) { 13823bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian int m = Ty->isFunctionPointerType() ? 0 : 1; 13833bba33d6f58844d4924ab1e221dc2ff44c521624Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic) << m; 13842f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 13852f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1386ac5fc7c6bcb494b60fee7ce615ac931c5db6135eMike Stump } else { 13872f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1388883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 13892f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian return; 13902f7c39246a968b921a6d95c7f8037fb3429e9501Fariborz Jahanian } 1391770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 1392fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1393883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionMethodOrBlock; 1394770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 1395770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 139687c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) SentinelAttr(Attr.getLoc(), S.Context, sentinel, 1397f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher nullPos)); 1398770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 1399770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 14001b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWarnUnusedResult(Sema &S, Decl *D, const AttributeList &Attr) { 1401026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 1402026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 1403026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1404026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1405026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1406026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1407f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (!isFunction(D) && !isa<ObjCMethodDecl>(D)) { 1408026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1409883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 1410026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 1411026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 1412bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1413f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (isFunction(D) && getFunctionType(D)->getResultType()->isVoidType()) { 1414f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1415f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 0; 1416f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes return; 1417f857798fa77ac50c6d0a262d96ad6176187190e3Nuno Lopes } 1418f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (const ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 1419f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian if (MD->getResultType()->isVoidType()) { 1420f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_void_function_method) 1421f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian << Attr.getName() << 1; 1422f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian return; 1423f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian } 1424f031774aa2638b4d3f487e7e44180c1f89b867efFariborz Jahanian 1425cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WarnUnusedResultAttr(Attr.getLoc(), S.Context)); 1426026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 1427026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 14281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakAttr(Sema &S, Decl *D, const AttributeList &Attr) { 14296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 143087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.hasParameterOrArguments()) { 143187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 14326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 14336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 14346e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 143587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FunctionDecl>(D)) { 143687c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 143787c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedVariableOrFunction; 1438f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian return; 1439f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian } 1440f23ecd91bf0205b776dfab2c5231e895019a7400Fariborz Jahanian 144187c44604325578b8de07d768391c1c9432404f5aChandler Carruth NamedDecl *nd = cast<NamedDecl>(D); 1442332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall 1443332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall // 'weak' only applies to declarations with external linkage. 1444332bb2a2e3cd0a5af85758847a8050ae8ceee5f3John McCall if (hasEffectivelyInternalLinkage(nd)) { 144587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_weak_static); 14466e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 14476e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 1448bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 144987c44604325578b8de07d768391c1c9432404f5aChandler Carruth nd->addAttr(::new (S.Context) WeakAttr(Attr.getLoc(), S.Context)); 14506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 14516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 14521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleWeakImportAttr(Sema &S, Decl *D, const AttributeList &Attr) { 14536e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 14546e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 14556e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 14566e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 1457bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 14586e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 14596e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 14606e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 14610a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (!D->canBeWeakImported(isDef)) { 14620a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (isDef) 14630a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor S.Diag(Attr.getLoc(), 14640a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor diag::warn_attribute_weak_import_invalid_on_definition) 14650a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor << "weak_import" << 2 /*variable and function*/; 1466def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor else if (isa<ObjCPropertyDecl>(D) || isa<ObjCMethodDecl>(D) || 1467db57a4cdb0a6abf3239f3a794a900ce312c5887bDaniel Dunbar (S.Context.Target.getTriple().isOSDarwin() && 1468def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor isa<ObjCInterfaceDecl>(D))) { 1469def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor // Nothing to warn about here. 1470def863192f83d8033e1833b48ae8119a65dfc7c8Douglas Gregor } else 1471c034974f103873bdccc91da99a30ab30295b5226Fariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1472883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 14736e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 14746e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 14756e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 14766e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 1477cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) WeakImportAttr(Attr.getLoc(), S.Context)); 14786e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 14796e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 14801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleReqdWorkGroupSize(Sema &S, Decl *D, 14811b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 14826f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman // Attribute has 3 arguments. 14836f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman if (Attr.getNumArgs() != 3) { 1484a8581b9ca06e6ad504af2e28c0798520364f7f1bChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 14856f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 14866f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 14876f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 14886f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman unsigned WGSize[3]; 14896f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman for (unsigned i = 0; i < 3; ++i) { 14907a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *E = Attr.getArg(i); 14916f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman llvm::APSInt ArgNum(32); 1492ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (E->isTypeDependent() || E->isValueDependent() || 1493ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !E->isIntegerConstantExpr(ArgNum, S.Context)) { 14946f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 14956f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman << "reqd_work_group_size" << E->getSourceRange(); 14966f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman return; 14976f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 14986f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[i] = (unsigned) ArgNum.getZExtValue(); 14996f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman } 1500cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) ReqdWorkGroupSizeAttr(Attr.getLoc(), S.Context, 1501cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt WGSize[0], WGSize[1], 15026f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman WGSize[2])); 15036f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman} 15046f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 15051b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSectionAttr(Sema &S, Decl *D, const AttributeList &Attr) { 150617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 150717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 150817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 150917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 151017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 151117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 151217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 151317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 15147a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 1515797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 151617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 1517797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) << "section"; 151817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 151917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 15201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1521797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner // If the target wants to validate the section specifier, make it happen. 1522bb377edda2656752016a0bc01fe4f9f8b6f80e19Benjamin Kramer std::string Error = S.Context.Target.isValidSectionSpecifier(SE->getString()); 1523a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (!Error.empty()) { 1524a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_invalid_for_target) 1525a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner << Error; 1526797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner return; 1527797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner } 15281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1529a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner // This attribute cannot be applied to local variables. 1530a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner if (isa<VarDecl>(D) && cast<VarDecl>(D)->hasLocalStorage()) { 1531a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner S.Diag(SE->getLocStart(), diag::err_attribute_section_local_variable); 1532a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner return; 1533a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner } 1534a1e1dc77e995b746826b64752751dbf35f323767Chris Lattner 1535f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher D->addAttr(::new (S.Context) SectionAttr(Attr.getLoc(), S.Context, 1536f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 153717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 153817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 15396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15401b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNothrowAttr(Sema &S, Decl *D, const AttributeList &Attr) { 15416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1542831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 15433c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 15446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 15456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1546b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 154787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (NoThrowAttr *Existing = D->getAttr<NoThrowAttr>()) { 1548b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 1549b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor Existing->setLocation(Attr.getLoc()); 1550b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 155187c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NoThrowAttr(Attr.getLoc(), S.Context)); 1552b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 15536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 15546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 15551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1556232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1557831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 15583c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1559232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1560232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1561bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 156287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ConstAttr *Existing = D->getAttr<ConstAttr>()) { 1563b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (Existing->getLocation().isInvalid()) 1564b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor Existing->setLocation(Attr.getLoc()); 1565b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } else { 156687c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) ConstAttr(Attr.getLoc(), S.Context)); 1567b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 1568232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1569232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 15701b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handlePureAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1571232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 1572232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 15733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1574232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 1575232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 1576bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 157787c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) PureAttr(Attr.getLoc(), S.Context)); 1578232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 1579232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 15801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCleanupAttr(Sema &S, Decl *D, const AttributeList &Attr) { 1581bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump if (!Attr.getParameterName()) { 1582f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1583f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1584f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1585bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1586f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 1587f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1588f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1589f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1590bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 159187c44604325578b8de07d768391c1c9432404f5aChandler Carruth VarDecl *VD = dyn_cast<VarDecl>(D); 1592bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1593f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 1594f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 1595f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1596f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1597bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1598f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 1599c83c6874e3bf1432d3df5e8d3530f8561ff5441fDouglas Gregor // FIXME: Lookup probably isn't looking in the right place 1600f36e02d4aff98bf2e52e342e0038d4172fbb5e64John McCall NamedDecl *CleanupDecl 1601f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis = S.LookupSingleName(S.TUScope, Attr.getParameterName(), 1602f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis Attr.getParameterLoc(), Sema::LookupOrdinaryName); 1603f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 1604f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), diag::err_attribute_cleanup_arg_not_found) << 1605f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 1606f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1607f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1608bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 1609f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 1610f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 1611f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 1612f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_arg_not_function) 1613f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 1614f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1615f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1616f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1617f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 1618f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 1619f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis diag::err_attribute_cleanup_func_must_take_one_arg) 1620f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis << Attr.getParameterName(); 1621f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 1622f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1623bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 162489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 162589941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 162689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 162789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1628b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor if (S.CheckAssignmentConstraints(FD->getParamDecl(0)->getLocation(), 1629b608b987718c6d841115464f79ab2d1820a63e17Douglas Gregor ParamTy, Ty) != Sema::Compatible) { 1630f0b0ccce127857e7e4fb829e017dbcb7487884c4Argyrios Kyrtzidis S.Diag(Attr.getParameterLoc(), 163189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 163289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 163389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 163489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 1635bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 163687c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CleanupAttr(Attr.getLoc(), S.Context, FD)); 1637223ae5c26654e5fd7dacdafe43aff28a096ba63bArgyrios Kyrtzidis S.MarkDeclarationReferenced(Attr.getParameterLoc(), FD); 1638f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1639f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 1640bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format_arg((idx)))) attribute based on 1641bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 16421b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatArgAttr(Sema &S, Decl *D, const AttributeList &Attr) { 16435b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Attr.getNumArgs() != 1) { 16445b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 16455b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 16465b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 164787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D) || !hasFunctionProto(D)) { 16485b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1649883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 16505b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 16515b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 165207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 165307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 165407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 165587c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 165687c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 16575b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned FirstIdx = 1; 165807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 16595b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // checks for the 2nd argument 16607a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 16615b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian llvm::APSInt Idx(32); 1662ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1663ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 16645b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 16655b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 16665b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 16675b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1668bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16695b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 16705b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 16715b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << "format" << 2 << IdxExpr->getSourceRange(); 16725b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 16735b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian } 1674bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16755b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian unsigned ArgIdx = Idx.getZExtValue() - 1; 1676bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 167707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (HasImplicitThisParam) { 167807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth if (ArgIdx == 0) { 167907d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_invalid_implicit_this_argument) 168007d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << "format_arg" << IdxExpr->getSourceRange(); 168107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth return; 168207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 168307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth ArgIdx--; 168407d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth } 168507d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth 16865b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // make sure the format string is really a string 168787c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 1688bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 16895b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian bool not_nsstring_type = !isNSStringType(Ty, S.Context); 16905b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (not_nsstring_type && 16915b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 16925b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 16936217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 16945b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 16955b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1696bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "a string type" : "an NSString") 16975b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 16985b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1699bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 170087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Ty = getFunctionOrMethodResultType(D); 17015b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian if (!isNSStringType(Ty, S.Context) && 17025b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian !isCFStringType(Ty, S.Context) && 17035b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian (!Ty->isPointerType() || 17046217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType())) { 17055b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian // FIXME: Should highlight the actual expression that has the wrong type. 17065b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_format_attribute_result_not) 1707bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump << (not_nsstring_type ? "string type" : "NSString") 17085b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian << IdxExpr->getSourceRange(); 17095b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian return; 1710bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 1711bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 171287c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) FormatArgAttr(Attr.getLoc(), S.Context, 171307d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth Idx.getZExtValue())); 17145b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian} 17155b160927672440076aa53c31d84149f70fd8d40eFariborz Jahanian 17162b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarenum FormatAttrKind { 17172b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar CFStringFormat, 17182b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar NSStringFormat, 17192b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar StrftimeFormat, 17202b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar SupportedFormat, 17213c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner IgnoredFormat, 17222b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar InvalidFormat 17232b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar}; 17242b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 17252b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// getFormatAttrKind - Map from format attribute names to supported format 17262b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar/// types. 17272b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbarstatic FormatAttrKind getFormatAttrKind(llvm::StringRef Format) { 17282b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for formats that get handled specially. 17292b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "NSString") 17302b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return NSStringFormat; 17312b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "CFString") 17322b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return CFStringFormat; 17332b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "strftime") 17342b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return StrftimeFormat; 17352b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 17362b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Otherwise, check for supported formats. 17372b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format == "scanf" || Format == "printf" || Format == "printf0" || 17382b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "strfmon" || Format == "cmn_err" || Format == "strftime" || 17392b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format == "NSString" || Format == "CFString" || Format == "vcmn_err" || 1740cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "zcmn_err" || 1741cd5b306f1b79c8a82fb0bdb4cf353021ea452fedChris Lattner Format == "kprintf") // OpenBSD. 17422b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return SupportedFormat; 17432b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1744bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands if (Format == "gcc_diag" || Format == "gcc_cdiag" || 1745bc52595e01323ca22d65c68aafd53a1acb8c1fb6Duncan Sands Format == "gcc_cxxdiag" || Format == "gcc_tdiag") 17463c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return IgnoredFormat; 17473c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 17482b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar return InvalidFormat; 17492b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar} 17502b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 1751521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// Handle __attribute__((init_priority(priority))) attributes based on 1752521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian/// http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Attributes.html 17531b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleInitPriorityAttr(Sema &S, Decl *D, 17541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 1755521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (!S.getLangOptions().CPlusPlus) { 1756521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1757521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1758521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 1759521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 176087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) || S.getCurFunctionOrMethodDecl()) { 1761b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1762b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1763b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1764b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 176587c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType T = dyn_cast<VarDecl>(D)->getType(); 1766b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (S.Context.getAsArrayType(T)) 1767b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian T = S.Context.getBaseElementType(T); 1768b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian if (!T->getAs<RecordType>()) { 1769b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_init_priority_object_attr); 1770b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian Attr.setInvalid(); 1771b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian return; 1772b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian } 1773b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1774521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (Attr.getNumArgs() != 1) { 1775521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1776521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1777521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1778521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 17797a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *priorityExpr = Attr.getArg(0); 1780b9d5c22529c3f2bf3b03348021c0fd1c723d8516Fariborz Jahanian 1781521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian llvm::APSInt priority(32); 1782521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (priorityExpr->isTypeDependent() || priorityExpr->isValueDependent() || 1783521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian !priorityExpr->isIntegerConstantExpr(priority, S.Context)) { 1784521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1785521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << "init_priority" << priorityExpr->getSourceRange(); 1786521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1787521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1788521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 17899f967c5e4bbeb48caf6d0e62056b3d3fee20bf7cFariborz Jahanian unsigned prioritynum = priority.getZExtValue(); 1790521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian if (prioritynum < 101 || prioritynum > 65535) { 1791521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_argument_outof_range) 1792521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian << priorityExpr->getSourceRange(); 1793521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian Attr.setInvalid(); 1794521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian return; 1795521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian } 179687c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) InitPriorityAttr(Attr.getLoc(), S.Context, 1797f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher prioritynum)); 1798521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian} 1799521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 1800bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Handle __attribute__((format(type,idx,firstarg))) attributes based on 1801bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 18021b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleFormatAttr(Sema &S, Decl *D, const AttributeList &Attr) { 18036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1804545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1805fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 18063c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 18076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1810545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 18113c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 18126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 181587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethodOrBlock(D) || !hasFunctionProto(D)) { 1816fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1817883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 18186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 182107d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // In C++ the implicit 'this' function parameter also counts, and they are 182207d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth // counted from one. 182387c44604325578b8de07d768391c1c9432404f5aChandler Carruth bool HasImplicitThisParam = isInstanceMethod(D); 182487c44604325578b8de07d768391c1c9432404f5aChandler Carruth unsigned NumArgs = getFunctionOrMethodNumArgs(D) + HasImplicitThisParam; 18256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 18266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 182701eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Format = Attr.getParameterName()->getName(); 18286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 18302b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Format.startswith("__") && Format.endswith("__")) 18312b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar Format = Format.substr(2, Format.size() - 4); 18322b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar 18332b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar // Check for supported formats. 18342b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FormatAttrKind Kind = getFormatAttrKind(Format); 18353c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 18363c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner if (Kind == IgnoredFormat) 18373c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner return; 18383c989027f68e2d9dfd57c018ccc550bd9fb79920Chris Lattner 18392b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == InvalidFormat) { 1840fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 184101eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar << "format" << Attr.getParameterName()->getName(); 18426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 18467a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *IdxExpr = Attr.getArg(0); 1847803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1848ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (IdxExpr->isTypeDependent() || IdxExpr->isValueDependent() || 1849ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1850fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 18513c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 18526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1856fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 18573c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 18586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 18626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 1863bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 18644a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (HasImplicitThisParam) { 18654a2614e94672c47395abcde60518776fbebec589Sebastian Redl if (ArgIdx == 0) { 186607d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth S.Diag(Attr.getLoc(), 186707d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth diag::err_format_attribute_implicit_this_format_string) 186807d7e7a6b10f798459f350b792713db2fb3e9365Chandler Carruth << IdxExpr->getSourceRange(); 18694a2614e94672c47395abcde60518776fbebec589Sebastian Redl return; 18704a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 18714a2614e94672c47395abcde60518776fbebec589Sebastian Redl ArgIdx--; 18724a2614e94672c47395abcde60518776fbebec589Sebastian Redl } 18731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 187587c44604325578b8de07d768391c1c9432404f5aChandler Carruth QualType Ty = getFunctionOrMethodArgType(D, ArgIdx); 18766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 18772b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == CFStringFormat) { 1878085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1879fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1880fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1881085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1882085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 18832b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar } else if (Kind == NSStringFormat) { 1884390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: do we need to check if the type is NSString*? What are the 1885390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // semantics? 1886803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 1887390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1888fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1889fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 18906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1891bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump } 18926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 18936217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek !Ty->getAs<PointerType>()->getPointeeType()->isCharType()) { 1894390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Should highlight the actual expression that has the wrong type. 1895fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1896fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 18976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 18986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 18996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 19017a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *FirstArgExpr = Attr.getArg(1); 1902803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1903ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (FirstArgExpr->isTypeDependent() || FirstArgExpr->isValueDependent() || 1904ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor !FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1905fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 19063c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 19076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 19116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 191287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (isFunctionOrMethodVariadic(D)) { 19136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 19146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 191587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocation(), diag::err_format_attribute_requires_variadic); 19166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19203c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 19213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 19222b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar if (Kind == StrftimeFormat) { 19236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1924fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1925fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 19266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 19296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1930fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 19313c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 19326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1935b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // Check whether we already have an equivalent format attribute. 1936b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor for (specific_attr_iterator<FormatAttr> 193787c44604325578b8de07d768391c1c9432404f5aChandler Carruth i = D->specific_attr_begin<FormatAttr>(), 193887c44604325578b8de07d768391c1c9432404f5aChandler Carruth e = D->specific_attr_end<FormatAttr>(); 1939b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor i != e ; ++i) { 1940b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor FormatAttr *f = *i; 1941b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (f->getType() == Format && 1942b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->getFormatIdx() == (int)Idx.getZExtValue() && 1943b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->getFirstArg() == (int)FirstArg.getZExtValue()) { 1944b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // If we don't have a valid location for this attribute, adopt the 1945b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor // location. 1946b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor if (f->getLocation().isInvalid()) 1947b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor f->setLocation(Attr.getLoc()); 1948b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor return; 1949b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 1950b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor } 1951b30cd4a09bbf0adfa644b957a2b28fe31c5d45e4Douglas Gregor 195287c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) FormatAttr(Attr.getLoc(), S.Context, Format, 1953cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt Idx.getZExtValue(), 19542b0d9a247ab375ca316bf04feede73de6672fc31Daniel Dunbar FirstArg.getZExtValue())); 19556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 19566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19571b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleTransparentUnionAttr(Sema &S, Decl *D, 19581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 19596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1960545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 19613c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 19626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19650c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Try to find the underlying union declaration. 19660c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RecordDecl *RD = 0; 196787c44604325578b8de07d768391c1c9432404f5aChandler Carruth TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D); 19680c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (TD && TD->getUnderlyingType()->isUnionType()) 19690c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 19700c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor else 197187c44604325578b8de07d768391c1c9432404f5aChandler Carruth RD = dyn_cast<RecordDecl>(D); 19720c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 19730c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD || !RD->isUnion()) { 1974fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1975883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedUnion; 19766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 19776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 19786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 19790c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (!RD->isDefinition()) { 1980bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Attr.getLoc(), 19810c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_not_definition); 19820c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 19830c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 19840c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor 198517945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis RecordDecl::field_iterator Field = RD->field_begin(), 198617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis FieldEnd = RD->field_end(); 19870c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (Field == FieldEnd) { 19880c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Diag(Attr.getLoc(), diag::warn_transparent_union_attribute_zero_fields); 19890c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 19900c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 1991bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 19920c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor FieldDecl *FirstField = *Field; 19930c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FirstType = FirstField->getType(); 199490cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor if (FirstType->hasFloatingRepresentation() || FirstType->isVectorType()) { 1995bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 199690cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor diag::warn_transparent_union_attribute_floating) 199790cd672ed107d5986936c577ce47ad7374096bd2Douglas Gregor << FirstType->isVectorType() << FirstType; 19980c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor return; 19990c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor } 2000bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 20010c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstSize = S.Context.getTypeSize(FirstType); 20020c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor uint64_t FirstAlign = S.Context.getTypeAlign(FirstType); 20030c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor for (; Field != FieldEnd; ++Field) { 20040c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor QualType FieldType = Field->getType(); 20050c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor if (S.Context.getTypeSize(FieldType) != FirstSize || 20060c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor S.Context.getTypeAlign(FieldType) != FirstAlign) { 20070c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor // Warn if we drop the attribute. 20080c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor bool isSize = S.Context.getTypeSize(FieldType) != FirstSize; 2009bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump unsigned FieldBits = isSize? S.Context.getTypeSize(FieldType) 20100c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor : S.Context.getTypeAlign(FieldType); 2011bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(Field->getLocation(), 20120c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::warn_transparent_union_attribute_field_size_align) 20130c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << Field->getDeclName() << FieldBits; 20140c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor unsigned FirstBits = isSize? FirstSize : FirstAlign; 2015bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump S.Diag(FirstField->getLocation(), 20160c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor diag::note_transparent_union_first_field_size_align) 20170c74e8a4e8865ec9ebb8efc0af247a3c077236c4Douglas Gregor << isSize << FirstBits; 2018bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 2019bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 2020bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 20216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2022cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt RD->addAttr(::new (S.Context) TransparentUnionAttr(Attr.getLoc(), S.Context)); 20236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 20246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 20251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAnnotateAttr(Sema &S, Decl *D, const AttributeList &Attr) { 20266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 2027545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 20283c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 20296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 20306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 20317a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne Expr *ArgExpr = Attr.getArg(0); 2032797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(ArgExpr); 2033bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 20346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 20356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 20366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 2037797c3c4f5dc4fda735e55c6b5d6270a54cf6d263Chris Lattner S.Diag(ArgExpr->getLocStart(), diag::err_attribute_not_string) <<"annotate"; 20386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 20396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 204087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) AnnotateAttr(Attr.getLoc(), S.Context, 2041f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher SE->getString())); 20426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 20436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 20441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleAlignedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 20456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 2046545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 20473c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 20486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 20496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2050bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 2051bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt //FIXME: The C++0x version of this attribute has more limited applicabilty 2052bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // than GNU's, and should error out when it is used to specify a 2053bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt // weaker alignment, rather than being silently ignored. 20546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2055545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 2056cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (S.Context) AlignedAttr(Attr.getLoc(), S.Context, true, 0)); 20574ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth return; 20584ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth } 20594ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 20607a73002783b30dcf613b06dbe618cfc1d1116ff8Peter Collingbourne S.AddAlignedAttr(Attr.getLoc(), D, Attr.getArg(0)); 20614ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth} 20624ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth 20634ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruthvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, Expr *E) { 20644ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (E->isTypeDependent() || E->isValueDependent()) { 20654ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth // Save dependent expressions in the AST to be instantiated. 2066cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 20676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 20686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2069bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2070cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object? 207149e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 20724ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth if (!E->isIntegerConstantExpr(Alignment, Context)) { 20734ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_argument_not_int) 20744ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << "aligned" << E->getSourceRange(); 207549e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 207649e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 2077396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 20784ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth Diag(AttrLoc, diag::err_attribute_aligned_not_power_of_two) 20794ced79f0971592e6e7122037de69ee9ae534ce72Chandler Carruth << E->getSourceRange(); 2080396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 2081396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 2082396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 2083cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, true, E)); 2084cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt} 2085cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 2086cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Huntvoid Sema::AddAlignedAttr(SourceLocation AttrLoc, Decl *D, TypeSourceInfo *TS) { 2087cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Cache the number on the Attr object if non-dependent? 2088cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt // FIXME: Perform checking of type validity 2089cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt D->addAttr(::new (Context) AlignedAttr(AttrLoc, Context, false, TS)); 2090cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return; 20916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2092fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2093d309c8195cd89fef9ed13507f7ee9ac70561cebbChandler Carruth/// handleModeAttr - This attribute modifies the width of a decl with primitive 2094bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type. 2095fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 2096bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// Despite what would be logical, the mode attribute is a decl attribute, not a 2097bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 'G' be 2098bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump/// HImode, not an intermediate pointer. 20991b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleModeAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2100fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 2101fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 2102fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2103fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 2104fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 21053c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2106fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2107fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2108fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2109fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 2110fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 21110b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 2112fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2113fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2114210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar 211501eb9b9683535d8a65c704ad2c545903409e2d36Daniel Dunbar llvm::StringRef Str = Attr.getParameterName()->getName(); 2116fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2117fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 2118210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str.startswith("__") && Str.endswith("__")) 2119210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar Str = Str.substr(2, Str.size() - 4); 2120fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2121fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 2122fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 212373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 2124210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar switch (Str.size()) { 2125fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 212673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 212773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 212873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 212973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 213073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 213173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 213273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 213373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 213473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 213573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 213673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 213773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 213873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 213973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 214073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 214173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2142fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2143fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 2144fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 2145fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 2146210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "word") 21470b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 2148210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar else if (Str == "byte") 21490b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 2150fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2151fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 2152210ae989a51dcb115b928829abd7c4c4ae0c01bdDaniel Dunbar if (Str == "pointer") 21530b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 2154fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2155fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2156fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2157fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 2158162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) 2159fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 2160fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 2161fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 2162fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 2163fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 2164fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 2165fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2166fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 216773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2168183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if (!OldTy->getAs<BuiltinType>() && !OldTy->isComplexType()) 216973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 217073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 21712ade35e2cfd554e49d35a52047cea98a82787af9Douglas Gregor if (!OldTy->isIntegralOrEnumerationType()) 217273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 217373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 217473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 217573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 217673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 217773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 217873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 217973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 218073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 2181390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Sync this with InitializePredefinedMacros; we need to match int8_t 2182390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // and friends, at least with glibc. 2183390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // FIXME: Make sure 32/64-bit integers don't get defined to types of the wrong 2184390b4cc8b45a05612349269ef08faab3e4688f06Mike Stump // width on unusual platforms. 2185f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 2186f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 2187fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 2188fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 2189fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 21903c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 2191fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2192fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 21933c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2194fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 2195fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 219673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 219773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 219873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 219973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2200fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 22010b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 2202fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 22030b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 2204fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2205fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 220673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 220773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 220873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 220973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 2210fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 22110b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 2212fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 22130b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 2214fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2215fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 2216fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 22170b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 2218fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 22190b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 2220fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 22210b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 2222fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 2223fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 2224fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 22250b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 2226fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 2227aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 2228aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongTy; 2229aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2230aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.LongLongTy; 2231fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 2232aec7caa3c40891727164167ece11d552422803d2Chandler Carruth if (S.Context.Target.getLongWidth() == 64) 2233aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongTy; 2234aec7caa3c40891727164167ece11d552422803d2Chandler Carruth else 2235aec7caa3c40891727164167ece11d552422803d2Chandler Carruth NewTy = S.Context.UnsignedLongLongTy; 2236fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 223773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 223873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 223973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2240f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 2241f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 2242f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 2243f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 2244f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 2245f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson if (OldTy->isSignedIntegerType()) 2246f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.Int128Ty; 2247f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson else 2248f5f7d864f5067d1ea4bff7fcf41b53a43b7b48baAnders Carlsson NewTy = S.Context.UnsignedInt128Ty; 224973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 2250fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2251fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 225273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 225373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 2254fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 2255fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 2256fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 2257162e1c1b487352434552147967c3dd296ebee2f7Richard Smith if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 2258ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall // FIXME: preserve existing source info. 2259a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TD->setTypeSourceInfo(S.Context.getTrivialTypeSourceInfo(NewTy)); 2260ba6a9bd384df475780be636ca45bcef5c5bbd19fJohn McCall } else 2261fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 2262fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 22630744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 22641b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoDebugAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2265d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 2266d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 2267d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2268d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2269d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2270e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 227187c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 2272d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2273883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2274d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 2275d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 2276bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 227787c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NoDebugAttr(Attr.getLoc(), S.Context)); 2278d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 2279d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 22801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 22815bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 22825bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 22835bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 22845bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 22855bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2286bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 228787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 22885bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2289883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 22905bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 22915bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 2292bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 229387c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NoInlineAttr(Attr.getLoc(), S.Context)); 22945bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 22955bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 22961b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNoInstrumentFunctionAttr(Sema &S, Decl *D, 22971b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 22987255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner // check the attribute arguments. 22997255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner if (Attr.getNumArgs() != 0) { 23007255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 23017255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 23027255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 23037255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 230487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 23057255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2306883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 23077255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner return; 23087255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner } 23097255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 231087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NoInstrumentFunctionAttr(Attr.getLoc(), 2311f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 23127255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner} 23137255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner 23141b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleConstantAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2315ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2316ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2317831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if (Attr.hasParameterOrArguments()) { 2318ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2319ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2320ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2321ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 232287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 2323ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2324883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2325ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2326ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2327ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 232887c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CUDAConstantAttr(Attr.getLoc(), S.Context)); 2329ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2330ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "constant"; 2331ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2332ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2333ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 23341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleDeviceAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2335ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2336ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2337ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2338ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2339ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2340ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2341ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 234287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 2343ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2344883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariableOrFunction; 2345ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2346ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2347ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 234887c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CUDADeviceAttr(Attr.getLoc(), S.Context)); 2349ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2350ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "device"; 2351ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2352ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2353ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 23541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGlobalAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2355ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2356ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2357ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2358ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2359ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2360ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2361ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 236287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 2363ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2364883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2365ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2366ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2367ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 236887c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *FD = cast<FunctionDecl>(D); 23692c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (!FD->getResultType()->isVoidType()) { 2370723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara TypeLoc TL = FD->getTypeSourceInfo()->getTypeLoc().IgnoreParens(); 23712c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne if (FunctionTypeLoc* FTL = dyn_cast<FunctionTypeLoc>(&TL)) { 23722c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 23732c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType() 23742c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FixItHint::CreateReplacement(FTL->getResultLoc().getSourceRange(), 23752c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne "void"); 23762c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } else { 23772c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne S.Diag(FD->getTypeSpecStartLoc(), diag::err_kern_type_not_void_return) 23782c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne << FD->getType(); 23792c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 23802c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne return; 23812c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne } 23822c2c8dd0acb2a51067299bfcec9ff2145f2031c8Peter Collingbourne 238387c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CUDAGlobalAttr(Attr.getLoc(), S.Context)); 2384ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2385ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "global"; 2386ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2387ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2388ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 23891b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleHostAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2390ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2391ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2392ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2393ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2394ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2395ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2396ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 239787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<FunctionDecl>(D)) { 2398ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2399883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 2400ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2401ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2402ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 240387c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CUDAHostAttr(Attr.getLoc(), S.Context)); 2404ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2405ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "host"; 2406ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2407ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2408ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 24091b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleSharedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 2410ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (S.LangOpts.CUDA) { 2411ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne // check the attribute arguments. 2412ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne if (Attr.getNumArgs() != 0) { 2413ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2414ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2415ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2416ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 241787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D)) { 2418ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2419883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedVariable; 2420ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne return; 2421ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2422ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 242387c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CUDASharedAttr(Attr.getLoc(), S.Context)); 2424ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } else { 2425ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "shared"; 2426ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne } 2427ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne} 2428ced7671c18e115ac3c3f54abfaaafcc6d33edc4cPeter Collingbourne 24291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleGNUInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) { 243026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner // check the attribute arguments. 243126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner if (Attr.getNumArgs() != 0) { 243226e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 243326e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 243426e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2435bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 243687c44604325578b8de07d768391c1c9432404f5aChandler Carruth FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); 2437c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner if (Fn == 0) { 243826e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2439883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunction; 244026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner return; 244126e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner } 2442bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 24430130f3cc4ccd5f46361c48d5fe94133d74619424Douglas Gregor if (!Fn->isInlineSpecified()) { 2444cf2a7211b4785068c7efa836baab90b198a4d2a6Chris Lattner S.Diag(Attr.getLoc(), diag::warn_gnu_inline_attribute_requires_inline); 2445c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner return; 2446c51974328b3a378c3c40b1fa527ecb928ed2bfdaChris Lattner } 2447bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 244887c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) GNUInlineAttr(Attr.getLoc(), S.Context)); 244926e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner} 245026e25545b26ec06f5d674dbae00fb168e6688d90Chris Lattner 24511b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleCallConvAttr(Sema &S, Decl *D, const AttributeList &Attr) { 245287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 2453711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 245487c44604325578b8de07d768391c1c9432404f5aChandler Carruth // Diagnostic is emitted elsewhere: here we store the (valid) Attr 2455e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara // in the Decl node for syntactic reasoning, e.g., pretty-printing. 2456711c52bb20d0c69063b52a99826fb7d2835501f1John McCall CallingConv CC; 245787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckCallingConvAttr(Attr, CC)) 2458711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2459e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 246087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 246187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 246287c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 2463711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2464711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2465711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 246687c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 2467e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_fastcall: 246887c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) FastCallAttr(Attr.getLoc(), S.Context)); 2469e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2470e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_stdcall: 247187c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) StdCallAttr(Attr.getLoc(), S.Context)); 2472e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2473f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 247487c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) ThisCallAttr(Attr.getLoc(), S.Context)); 247504633eb86621747bece5643f5909222e2dd6884fDouglas Gregor return; 2476e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara case AttributeList::AT_cdecl: 247787c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CDeclAttr(Attr.getLoc(), S.Context)); 2478e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 247952fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 248087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) PascalAttr(Attr.getLoc(), S.Context)); 248152fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik return; 2482414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: { 248387c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *Arg = Attr.getArg(0); 2484414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 2485414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (Str == 0 || Str->isWide()) { 248687c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 2487414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 248887c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2489414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 2490414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2491414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 2492414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov llvm::StringRef StrRef = Str->getString(); 2493414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PcsAttr::PCSType PCS; 2494414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") 2495414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS; 2496414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else if (StrRef == "aapcs-vfp") 2497414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov PCS = PcsAttr::AAPCS_VFP; 2498414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov else { 249987c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_invalid_pcs); 250087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2501414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return; 2502414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2503414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 250487c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) PcsAttr(Attr.getLoc(), S.Context, PCS)); 2505414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2506e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara default: 2507e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara llvm_unreachable("unexpected attribute kind"); 2508e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara return; 2509e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara } 2510e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara} 2511e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 25121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleOpenCLKernelAttr(Sema &S, Decl *D, const AttributeList &Attr){ 2513f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne assert(Attr.isInvalid() == false); 251487c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) OpenCLKernelAttr(Attr.getLoc(), S.Context)); 2515f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne} 2516f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 2517711c52bb20d0c69063b52a99826fb7d2835501f1John McCallbool Sema::CheckCallingConvAttr(const AttributeList &attr, CallingConv &CC) { 2518711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (attr.isInvalid()) 2519711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2520711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2521831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek if ((attr.getNumArgs() != 0 && 2522831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek !(attr.getKind() == AttributeList::AT_pcs && attr.getNumArgs() == 1)) || 2523831efaeb4ba2c0939db6eeb77229d9e47dd03c9cTed Kremenek attr.getParameterName()) { 2524711c52bb20d0c69063b52a99826fb7d2835501f1John McCall Diag(attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2525711c52bb20d0c69063b52a99826fb7d2835501f1John McCall attr.setInvalid(); 2526711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2527ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 252855d3aaf9a537888734762170823daf750ea9036dEli Friedman 2529414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // TODO: diagnose uses of these conventions on the wrong target. Or, better 2530414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // move to TargetAttributesSema one day. 2531711c52bb20d0c69063b52a99826fb7d2835501f1John McCall switch (attr.getKind()) { 2532711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_cdecl: CC = CC_C; break; 2533711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_fastcall: CC = CC_X86FastCall; break; 2534711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_stdcall: CC = CC_X86StdCall; break; 2535711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_thiscall: CC = CC_X86ThisCall; break; 2536711c52bb20d0c69063b52a99826fb7d2835501f1John McCall case AttributeList::AT_pascal: CC = CC_X86Pascal; break; 2537414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: { 2538414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Expr *Arg = attr.getArg(0); 2539414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 2540414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (Str == 0 || Str->isWide()) { 2541414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov Diag(attr.getLoc(), diag::err_attribute_argument_n_not_string) 2542414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov << "pcs" << 1; 2543414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov attr.setInvalid(); 2544414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov return true; 2545414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2546414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov 2547414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov llvm::StringRef StrRef = Str->getString(); 2548414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov if (StrRef == "aapcs") { 2549414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS; 2550414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 2551414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } else if (StrRef == "aapcs-vfp") { 2552414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov CC = CC_AAPCS_VFP; 2553414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov break; 2554414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2555414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov // FALLS THROUGH 2556414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov } 2557711c52bb20d0c69063b52a99826fb7d2835501f1John McCall default: llvm_unreachable("unexpected attribute kind"); return true; 2558711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2559711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2560711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2561711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 2562711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 25631b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleRegparmAttr(Sema &S, Decl *D, const AttributeList &Attr) { 256487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 2565711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2566711c52bb20d0c69063b52a99826fb7d2835501f1John McCall unsigned numParams; 256787c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (S.CheckRegparmAttr(Attr, numParams)) 2568711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return; 2569711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 257087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 257187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 257287c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << ExpectedFunctionOrMethod; 2573ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 2574ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 257555d3aaf9a537888734762170823daf750ea9036dEli Friedman 257687c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) RegparmAttr(Attr.getLoc(), S.Context, numParams)); 2577711c52bb20d0c69063b52a99826fb7d2835501f1John McCall} 2578711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 2579711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// Checks a regparm attribute, returning true if it is ill-formed and 2580711c52bb20d0c69063b52a99826fb7d2835501f1John McCall/// otherwise setting numParams to the appropriate value. 258187c44604325578b8de07d768391c1c9432404f5aChandler Carruthbool Sema::CheckRegparmAttr(const AttributeList &Attr, unsigned &numParams) { 258287c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.isInvalid()) 2583711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2584711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 258587c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getNumArgs() != 1) { 258687c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 258787c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2588711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 2589711c52bb20d0c69063b52a99826fb7d2835501f1John McCall } 2590711c52bb20d0c69063b52a99826fb7d2835501f1John McCall 259187c44604325578b8de07d768391c1c9432404f5aChandler Carruth Expr *NumParamsExpr = Attr.getArg(0); 259255d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 2593ac06a0e1e3feb95c2ffd352c086882b492a65b99Douglas Gregor if (NumParamsExpr->isTypeDependent() || NumParamsExpr->isValueDependent() || 2594711c52bb20d0c69063b52a99826fb7d2835501f1John McCall !NumParamsExpr->isIntegerConstantExpr(NumParams, Context)) { 259587c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 259655d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 259787c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2598711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 259955d3aaf9a537888734762170823daf750ea9036dEli Friedman } 260055d3aaf9a537888734762170823daf750ea9036dEli Friedman 2601711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (Context.Target.getRegParmMax() == 0) { 260287c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 260355d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 260487c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2605711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 260655d3aaf9a537888734762170823daf750ea9036dEli Friedman } 260755d3aaf9a537888734762170823daf750ea9036dEli Friedman 2608711c52bb20d0c69063b52a99826fb7d2835501f1John McCall numParams = NumParams.getZExtValue(); 2609711c52bb20d0c69063b52a99826fb7d2835501f1John McCall if (numParams > Context.Target.getRegParmMax()) { 261087c44604325578b8de07d768391c1c9432404f5aChandler Carruth Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 2611711c52bb20d0c69063b52a99826fb7d2835501f1John McCall << Context.Target.getRegParmMax() << NumParamsExpr->getSourceRange(); 261287c44604325578b8de07d768391c1c9432404f5aChandler Carruth Attr.setInvalid(); 2613711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return true; 261455d3aaf9a537888734762170823daf750ea9036dEli Friedman } 261555d3aaf9a537888734762170823daf750ea9036dEli Friedman 2616711c52bb20d0c69063b52a99826fb7d2835501f1John McCall return false; 2617ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 2618ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 26191b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleLaunchBoundsAttr(Sema &S, Decl *D, const AttributeList &Attr){ 26207b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (S.LangOpts.CUDA) { 26217b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne // check the attribute arguments. 26227b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() != 1 && Attr.getNumArgs() != 2) { 2623bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall // FIXME: 0 is not okay. 2624bdc49d360f98c1194d50b8bbb24885bf8d4c1ac4John McCall S.Diag(Attr.getLoc(), diag::err_attribute_too_many_arguments) << 2; 26257b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 26267b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 26277b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 262887c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isFunctionOrMethod(D)) { 26297b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 2630883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << Attr.getName() << ExpectedFunctionOrMethod; 26317b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 26327b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 26337b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 26347b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MaxThreadsExpr = Attr.getArg(0); 26357b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MaxThreads(32); 26367b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MaxThreadsExpr->isTypeDependent() || 26377b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreadsExpr->isValueDependent() || 26387b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MaxThreadsExpr->isIntegerConstantExpr(MaxThreads, S.Context)) { 26397b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 26407b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 1 << MaxThreadsExpr->getSourceRange(); 26417b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 26427b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 26437b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 26447b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne llvm::APSInt MinBlocks(32); 26457b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (Attr.getNumArgs() > 1) { 26467b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne Expr *MinBlocksExpr = Attr.getArg(1); 26477b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne if (MinBlocksExpr->isTypeDependent() || 26487b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocksExpr->isValueDependent() || 26497b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne !MinBlocksExpr->isIntegerConstantExpr(MinBlocks, S.Context)) { 26507b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 26517b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne << "launch_bounds" << 2 << MinBlocksExpr->getSourceRange(); 26527b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne return; 26537b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 26547b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 26557b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 265687c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CUDALaunchBoundsAttr(Attr.getLoc(), S.Context, 26577b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MaxThreads.getZExtValue(), 26587b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne MinBlocks.getZExtValue())); 26597b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } else { 26607b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "launch_bounds"; 26617b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne } 26627b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne} 26637b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne 26640744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 2665b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek// Checker-specific attribute handlers. 2666b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 2667b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2668c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfNSAttribute(Sema &S, QualType type) { 2669c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return type->isObjCObjectPointerType() || S.Context.isObjCNSObjectType(type); 2670c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2671c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCallstatic bool isValidSubjectOfCFAttribute(Sema &S, QualType type) { 2672c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return type->isPointerType() || isValidSubjectOfNSAttribute(S, type); 2673c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2674c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 26751b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumedAttr(Sema &S, Decl *D, const AttributeList &Attr) { 267687c44604325578b8de07d768391c1c9432404f5aChandler Carruth ParmVarDecl *param = dyn_cast<ParmVarDecl>(D); 2677c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!param) { 267887c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 267987c44604325578b8de07d768391c1c9432404f5aChandler Carruth << SourceRange(Attr.getLoc()) << Attr.getName() << ExpectedParameter; 2680c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 2681c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2682c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2683c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK, cf; 268487c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (Attr.getKind() == AttributeList::AT_ns_consumed) { 2685c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, param->getType()); 2686c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 2687c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } else { 2688c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, param->getType()); 2689c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 2690c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2691c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2692c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 269387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_parameter_type) 269487c44604325578b8de07d768391c1c9432404f5aChandler Carruth << SourceRange(Attr.getLoc()) << Attr.getName() << cf; 2695c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 2696c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2697c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2698c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (cf) 269987c44604325578b8de07d768391c1c9432404f5aChandler Carruth param->addAttr(::new (S.Context) CFConsumedAttr(Attr.getLoc(), S.Context)); 2700c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall else 270187c44604325578b8de07d768391c1c9432404f5aChandler Carruth param->addAttr(::new (S.Context) NSConsumedAttr(Attr.getLoc(), S.Context)); 2702c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2703c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 27041b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSConsumesSelfAttr(Sema &S, Decl *D, 27051b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 270687c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<ObjCMethodDecl>(D)) { 270787c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 270887c44604325578b8de07d768391c1c9432404f5aChandler Carruth << SourceRange(Attr.getLoc()) << Attr.getName() << ExpectedMethod; 2709c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 2710c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2711c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 271287c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NSConsumesSelfAttr(Attr.getLoc(), S.Context)); 2713c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall} 2714c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 27151b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleNSReturnsRetainedAttr(Sema &S, Decl *D, 27161b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 2717b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2718c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall QualType returnType; 2719bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 272087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(D)) 2721c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = MD->getResultType(); 272287c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (ObjCPropertyDecl *PD = dyn_cast<ObjCPropertyDecl>(D)) 2723831fb9622581fc3b777848e6b097a0cb23d124deFariborz Jahanian returnType = PD->getType(); 272487c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (S.getLangOptions().ObjCAutoRefCount && hasDeclarator(D) && 272587c44604325578b8de07d768391c1c9432404f5aChandler Carruth (Attr.getKind() == AttributeList::AT_ns_returns_retained)) 2726f85e193739c953358c865005855253af4f68a497John McCall return; // ignore: was handled as a type attribute 272787c44604325578b8de07d768391c1c9432404f5aChandler Carruth else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) 2728c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall returnType = FD->getResultType(); 27295dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek else { 273087c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_attribute_wrong_decl_type) 273187c44604325578b8de07d768391c1c9432404f5aChandler Carruth << SourceRange(Attr.getLoc()) << Attr.getName() 2732883cc2ca5ff06d7f1d89a9ab24a2da37f095243bJohn McCall << ExpectedFunctionOrMethod; 2733b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2734b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek } 2735bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 2736c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool typeOK; 2737c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall bool cf; 273887c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 2739c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall default: llvm_unreachable("invalid ownership attribute"); return; 2740c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 2741c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_retained: 2742c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_not_retained: 2743c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfNSAttribute(S, returnType); 2744c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = false; 2745c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 2746c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2747c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_retained: 2748c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_returns_not_retained: 2749c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall typeOK = isValidSubjectOfCFAttribute(S, returnType); 2750c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall cf = true; 2751c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall break; 2752c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall } 2753c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2754c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall if (!typeOK) { 275587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::warn_ns_attribute_wrong_return_type) 275687c44604325578b8de07d768391c1c9432404f5aChandler Carruth << SourceRange(Attr.getLoc()) 275787c44604325578b8de07d768391c1c9432404f5aChandler Carruth << Attr.getName() << isa<ObjCMethodDecl>(D) << cf; 2758bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump return; 27595dc53c9c2328b5bea5422005b04960c18afd83adTed Kremenek } 2760bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 276187c44604325578b8de07d768391c1c9432404f5aChandler Carruth switch (Attr.getKind()) { 2762b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek default: 2763b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek assert(0 && "invalid ownership attribute"); 2764b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2765c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 276687c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NSReturnsAutoreleasedAttr(Attr.getLoc(), 2767c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall S.Context)); 2768c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall return; 276931c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 277087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CFReturnsNotRetainedAttr(Attr.getLoc(), 2771f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 277231c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 277331c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 277487c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NSReturnsNotRetainedAttr(Attr.getLoc(), 2775f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 277631c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek return; 2777b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 277887c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) CFReturnsRetainedAttr(Attr.getLoc(), 2779f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 2780b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2781b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 278287c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) NSReturnsRetainedAttr(Attr.getLoc(), 2783f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christopher S.Context)); 2784b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek return; 2785b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek }; 2786b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek} 2787b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 27881b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCOwnershipAttr(Sema &S, Decl *D, 27891b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 279087c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (hasDeclarator(D)) return; 2791f85e193739c953358c865005855253af4f68a497John McCall 279287c44604325578b8de07d768391c1c9432404f5aChandler Carruth SourceLocation L = Attr.getLoc(); 279387c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 279487c44604325578b8de07d768391c1c9432404f5aChandler Carruth << SourceRange(L, L) << Attr.getName() << 12 /* variable */; 2795f85e193739c953358c865005855253af4f68a497John McCall} 2796f85e193739c953358c865005855253af4f68a497John McCall 27971b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleObjCPreciseLifetimeAttr(Sema &S, Decl *D, 27981b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 279987c44604325578b8de07d768391c1c9432404f5aChandler Carruth if (!isa<VarDecl>(D) && !isa<FieldDecl>(D)) { 280087c44604325578b8de07d768391c1c9432404f5aChandler Carruth SourceLocation L = Attr.getLoc(); 280187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(D->getLocStart(), diag::err_attribute_wrong_decl_type) 280287c44604325578b8de07d768391c1c9432404f5aChandler Carruth << SourceRange(L, L) << Attr.getName() << 12 /* variable */; 2803f85e193739c953358c865005855253af4f68a497John McCall return; 2804f85e193739c953358c865005855253af4f68a497John McCall } 2805f85e193739c953358c865005855253af4f68a497John McCall 280687c44604325578b8de07d768391c1c9432404f5aChandler Carruth ValueDecl *vd = cast<ValueDecl>(D); 2807f85e193739c953358c865005855253af4f68a497John McCall QualType type = vd->getType(); 2808f85e193739c953358c865005855253af4f68a497John McCall 2809f85e193739c953358c865005855253af4f68a497John McCall if (!type->isDependentType() && 2810f85e193739c953358c865005855253af4f68a497John McCall !type->isObjCLifetimeType()) { 281187c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::err_objc_precise_lifetime_bad_type) 2812f85e193739c953358c865005855253af4f68a497John McCall << type; 2813f85e193739c953358c865005855253af4f68a497John McCall return; 2814f85e193739c953358c865005855253af4f68a497John McCall } 2815f85e193739c953358c865005855253af4f68a497John McCall 2816f85e193739c953358c865005855253af4f68a497John McCall Qualifiers::ObjCLifetime lifetime = type.getObjCLifetime(); 2817f85e193739c953358c865005855253af4f68a497John McCall 2818f85e193739c953358c865005855253af4f68a497John McCall // If we have no lifetime yet, check the lifetime we're presumably 2819f85e193739c953358c865005855253af4f68a497John McCall // going to infer. 2820f85e193739c953358c865005855253af4f68a497John McCall if (lifetime == Qualifiers::OCL_None && !type->isDependentType()) 2821f85e193739c953358c865005855253af4f68a497John McCall lifetime = type->getObjCARCImplicitLifetime(); 2822f85e193739c953358c865005855253af4f68a497John McCall 2823f85e193739c953358c865005855253af4f68a497John McCall switch (lifetime) { 2824f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_None: 2825f85e193739c953358c865005855253af4f68a497John McCall assert(type->isDependentType() && 2826f85e193739c953358c865005855253af4f68a497John McCall "didn't infer lifetime for non-dependent type?"); 2827f85e193739c953358c865005855253af4f68a497John McCall break; 2828f85e193739c953358c865005855253af4f68a497John McCall 2829f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Weak: // meaningful 2830f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Strong: // meaningful 2831f85e193739c953358c865005855253af4f68a497John McCall break; 2832f85e193739c953358c865005855253af4f68a497John McCall 2833f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_ExplicitNone: 2834f85e193739c953358c865005855253af4f68a497John McCall case Qualifiers::OCL_Autoreleasing: 283587c44604325578b8de07d768391c1c9432404f5aChandler Carruth S.Diag(Attr.getLoc(), diag::warn_objc_precise_lifetime_meaningless) 2836f85e193739c953358c865005855253af4f68a497John McCall << (lifetime == Qualifiers::OCL_Autoreleasing); 2837f85e193739c953358c865005855253af4f68a497John McCall break; 2838f85e193739c953358c865005855253af4f68a497John McCall } 2839f85e193739c953358c865005855253af4f68a497John McCall 284087c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) 284187c44604325578b8de07d768391c1c9432404f5aChandler Carruth ObjCPreciseLifetimeAttr(Attr.getLoc(), S.Context)); 2842f85e193739c953358c865005855253af4f68a497John McCall} 2843f85e193739c953358c865005855253af4f68a497John McCall 2844f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davisstatic bool isKnownDeclSpecAttr(const AttributeList &Attr) { 2845f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis return Attr.getKind() == AttributeList::AT_dllimport || 284611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_dllexport || 284711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Attr.getKind() == AttributeList::AT_uuid; 284811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet} 284911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 285011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 285111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet// Microsoft specific attribute handlers. 285211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet//===----------------------------------------------------------------------===// 285311542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 28541b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void handleUuidAttr(Sema &S, Decl *D, const AttributeList &Attr) { 285511542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet if (S.LangOpts.Microsoft || S.LangOpts.Borland) { 285611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet // check the attribute arguments. 285711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet if (Attr.getNumArgs() != 1) { 285811542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 285911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet return; 286011542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet } 286111542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Expr *Arg = Attr.getArg(0); 286211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 2863d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (Str == 0 || Str->isWide()) { 2864d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 2865d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet << "uuid" << 1; 2866d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2867d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2868d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2869d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet llvm::StringRef StrRef = Str->getString(); 2870d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2871d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet bool IsCurly = StrRef.size() > 1 && StrRef.front() == '{' && 2872d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet StrRef.back() == '}'; 2873d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2874d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // Validate GUID length. 2875d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (IsCurly && StrRef.size() != 38) { 2876d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2877d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2878d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2879d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (!IsCurly && StrRef.size() != 36) { 2880d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2881d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2882d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2883d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet 2884d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // GUID format is "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX" or 2885d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet // "{XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX}" 2886f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson llvm::StringRef::iterator I = StrRef.begin(); 2887f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson if (IsCurly) // Skip the optional '{' 2888f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson ++I; 2889f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson 2890f89e0424b8903438179f4a2f16dddd5e5bdc814eAnders Carlsson for (int i = 0; i < 36; ++i) { 2891d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (i == 8 || i == 13 || i == 18 || i == 23) { 2892d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet if (*I != '-') { 2893d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2894d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2895d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2896d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else if (!isxdigit(*I)) { 2897d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet S.Diag(Attr.getLoc(), diag::err_attribute_uuid_malformed_guid); 2898d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet return; 2899d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 2900d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet I++; 2901d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } 290211542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet 290387c44604325578b8de07d768391c1c9432404f5aChandler Carruth D->addAttr(::new (S.Context) UuidAttr(Attr.getLoc(), S.Context, 290411542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet Str->getString())); 2905d3d3be9bc717b37366324e9711f1ea22dea42caaFrancois Pichet } else 290611542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "uuid"; 2907f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis} 2908f0122fe49329cb439d55a6712bfcaad9a6570428Charles Davis 2909b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek//===----------------------------------------------------------------------===// 29100744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 29110744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 29120744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 29131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessNonInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 29141b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 291560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne switch (Attr.getKind()) { 29161b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_device: handleDeviceAttr (S, D, Attr); break; 29171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_host: handleHostAttr (S, D, Attr); break; 29181b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_overloadable:handleOverloadableAttr(S, D, Attr); break; 291960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne default: 292060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 292160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne } 292260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 2923e215f7232dd4aa65ebf2a1ecd07cd95fe1ce3481Abramo Bagnara 29241b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D, 29251b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr) { 2926803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 29271b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_IBAction: handleIBAction(S, D, Attr); break; 29281b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_IBOutlet: handleIBOutlet(S, D, Attr); break; 2929857e918a8a40deb128840308a318bf623d68295fTed Kremenek case AttributeList::AT_IBOutletCollection: 29301b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleIBOutletCollection(S, D, Attr); break; 2931803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 2932207f4d8543529221932af82836016a2ef066c917Peter Collingbourne case AttributeList::AT_opencl_image_access: 2933ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 29346e132aab867c189b1c3ee7463ef9d2b1f03a294dJohn Thompson case AttributeList::AT_vector_size: 29354211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_vector_type: 29364211bb68cff1f310be280f66a59520548ef99d8fBob Wilson case AttributeList::AT_neon_polyvector_type: 2937bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // Ignore these, these are type attributes, handled by 2938bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump // ProcessTypeAttributes. 2939803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 294060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_device: 294160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_host: 294260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne case AttributeList::AT_overloadable: 294360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // Ignore, this is a non-inheritable attribute, handled 294460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // by ProcessNonInheritableDeclAttr. 294560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne break; 29461b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_alias: handleAliasAttr (S, D, Attr); break; 29471b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_aligned: handleAlignedAttr (S, D, Attr); break; 2948bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::AT_always_inline: 29491b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAlwaysInlineAttr (S, D, Attr); break; 2950b725232b46e92f3e36b03a32a6fc75748c312122Ted Kremenek case AttributeList::AT_analyzer_noreturn: 29511b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleAnalyzerNoReturnAttr (S, D, Attr); break; 29521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_annotate: handleAnnotateAttr (S, D, Attr); break; 29531b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_availability:handleAvailabilityAttr(S, D, Attr); break; 2954bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt case AttributeList::AT_carries_dependency: 29551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleDependencyAttr (S, D, Attr); break; 29561b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_common: handleCommonAttr (S, D, Attr); break; 29571b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_constant: handleConstantAttr (S, D, Attr); break; 29581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_constructor: handleConstructorAttr (S, D, Attr); break; 29591b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_deprecated: handleDeprecatedAttr (S, D, Attr); break; 29601b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_destructor: handleDestructorAttr (S, D, Attr); break; 29613068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 29621b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleExtVectorTypeAttr(S, scope, D, Attr); 29633068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 29641b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_format: handleFormatAttr (S, D, Attr); break; 29651b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_format_arg: handleFormatArgAttr (S, D, Attr); break; 29661b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_global: handleGlobalAttr (S, D, Attr); break; 29671b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_gnu_inline: handleGNUInlineAttr (S, D, Attr); break; 29687b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne case AttributeList::AT_launch_bounds: 29691b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleLaunchBoundsAttr(S, D, Attr); 29707b381985353304a7723acb05911ff91634fa1f27Peter Collingbourne break; 29711b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_mode: handleModeAttr (S, D, Attr); break; 29721b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_malloc: handleMallocAttr (S, D, Attr); break; 29731b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_may_alias: handleMayAliasAttr (S, D, Attr); break; 29741b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nocommon: handleNoCommonAttr (S, D, Attr); break; 29751b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nonnull: handleNonNullAttr (S, D, Attr); break; 2976dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_returns: 2977dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_takes: 2978dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek case AttributeList::AT_ownership_holds: 29791b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOwnershipAttr (S, D, Attr); break; 29801b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_naked: handleNakedAttr (S, D, Attr); break; 29811b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_noreturn: handleNoReturnAttr (S, D, Attr); break; 29821b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nothrow: handleNothrowAttr (S, D, Attr); break; 29831b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_shared: handleSharedAttr (S, D, Attr); break; 29841b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_vecreturn: handleVecReturnAttr (S, D, Attr); break; 2985b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 2986b8b0313e84700b5c6d597b3be4de41c97b7550f1Argyrios Kyrtzidis case AttributeList::AT_objc_ownership: 29871b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCOwnershipAttr(S, D, Attr); break; 2988f85e193739c953358c865005855253af4f68a497John McCall case AttributeList::AT_objc_precise_lifetime: 29891b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCPreciseLifetimeAttr(S, D, Attr); break; 2990f85e193739c953358c865005855253af4f68a497John McCall 2991b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek // Checker-specific. 2992c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_cf_consumed: 29931b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_ns_consumed: handleNSConsumedAttr (S, D, Attr); break; 2994c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_consumes_self: 29951b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSConsumesSelfAttr(S, D, Attr); break; 2996c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall 2997c7ad38168d329d778e884a8b6400bcbed8dc85eeJohn McCall case AttributeList::AT_ns_returns_autoreleased: 299831c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_ns_returns_not_retained: 299931c780d95a830f0187cfcbb1016ce88f50a7dfe1Ted Kremenek case AttributeList::AT_cf_returns_not_retained: 3000b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_ns_returns_retained: 3001b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek case AttributeList::AT_cf_returns_retained: 30021b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNSReturnsRetainedAttr(S, D, Attr); break; 3003b71368d28532908ae1c2dc23f91761781205b3d0Ted Kremenek 30046f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman case AttributeList::AT_reqd_wg_size: 30051b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleReqdWorkGroupSize(S, D, Attr); break; 30066f3d838867538638b9bbf412028e8537ae12f3e5Nate Begeman 3007521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian case AttributeList::AT_init_priority: 30081b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleInitPriorityAttr(S, D, Attr); break; 3009521f12d3dfdbb0e93d1bcb503d074e67acdc489cFariborz Jahanian 30101b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_packed: handlePackedAttr (S, D, Attr); break; 30111b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_MsStruct: handleMsStructAttr (S, D, Attr); break; 30121b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_section: handleSectionAttr (S, D, Attr); break; 30131b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_unavailable: handleUnavailableAttr (S, D, Attr); break; 30141b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_unused: handleUnusedAttr (S, D, Attr); break; 30151b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_used: handleUsedAttr (S, D, Attr); break; 30161b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_visibility: handleVisibilityAttr (S, D, Attr); break; 30171b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_warn_unused_result: handleWarnUnusedResult(S, D, Attr); 3018026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 30191b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weak: handleWeakAttr (S, D, Attr); break; 30201b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weakref: handleWeakRefAttr (S, D, Attr); break; 30211b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_weak_import: handleWeakImportAttr (S, D, Attr); break; 3022803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 30231b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleTransparentUnionAttr(S, D, Attr); 3024803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 30250db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 30261b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCExceptionAttr(S, D, Attr); 30270db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 3028d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall case AttributeList::AT_objc_method_family: 30291b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleObjCMethodFamilyAttr(S, D, Attr); 3030d5313b0bbf3948fe7c63bf46a7da330c96d07309John McCall break; 30311b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nsobject: handleObjCNSObject (S, D, Attr); break; 30321b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_blocks: handleBlocksAttr (S, D, Attr); break; 30331b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_sentinel: handleSentinelAttr (S, D, Attr); break; 30341b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_const: handleConstAttr (S, D, Attr); break; 30351b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_pure: handlePureAttr (S, D, Attr); break; 30361b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_cleanup: handleCleanupAttr (S, D, Attr); break; 30371b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_nodebug: handleNoDebugAttr (S, D, Attr); break; 30381b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_noinline: handleNoInlineAttr (S, D, Attr); break; 30391b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth case AttributeList::AT_regparm: handleRegparmAttr (S, D, Attr); break; 3040bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump case AttributeList::IgnoredAttribute: 304105f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 304205f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 30437255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner case AttributeList::AT_no_instrument_function: // Interacts with -pg. 30441b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleNoInstrumentFunctionAttr(S, D, Attr); 30457255a2d997b15beae82e627052fdb1b2474495c2Chris Lattner break; 304604a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_stdcall: 304704a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_cdecl: 304804a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall case AttributeList::AT_fastcall: 3049f813a2c03fcb05381b3252010435f557eb6b3cdeDouglas Gregor case AttributeList::AT_thiscall: 305052fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik case AttributeList::AT_pascal: 3051414d8967e1d760ea1e19a4aca96b13777a8cf8c5Anton Korobeynikov case AttributeList::AT_pcs: 30521b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleCallConvAttr(S, D, Attr); 305304a67a6aa3dfdc92d57f7f8d93ba397348c868a4John McCall break; 3054f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne case AttributeList::AT_opencl_kernel_function: 30551b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleOpenCLKernelAttr(S, D, Attr); 3056f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne break; 305711542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet case AttributeList::AT_uuid: 30581b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth handleUuidAttr(S, D, Attr); 305911542141e385859df6b4f1a8f1f01856ad193b5bFrancois Pichet break; 3060803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 306182d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov // Ask target about the attribute. 306282d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov const TargetAttributesSema &TargetAttrs = S.getTargetAttributesSema(); 306382d0a418c8699fc6f4a9417457ffe93d43bba1c1Anton Korobeynikov if (!TargetAttrs.ProcessDeclAttribute(scope, D, Attr, S)) 30647d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth S.Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) 30657d5c45ed9dc2842ce8e65ea26ced0957be36a569Chandler Carruth << Attr.getName(); 3066803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 3067803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 3068803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 3069803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 307060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 307160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the attribute applies to decls. If the attribute is a type attribute, just 307260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// silently ignore it if a GNU attribute. FIXME: Applying a C++0x attribute to 307360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne/// the wrong thing is illegal (C++0x [dcl.attr.grammar]/4). 30741b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruthstatic void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D, 30751b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth const AttributeList &Attr, 307660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 307760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isInvalid()) 307860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 307960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 308060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Attr.isDeclspecAttribute() && !isKnownDeclSpecAttr(Attr)) 308160700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne // FIXME: Try to deal with other __declspec attributes! 308260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne return; 308360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 308460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (NonInheritable) 30851b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessNonInheritableDeclAttr(S, scope, D, Attr); 308660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 308760700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable) 30881b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessInheritableDeclAttr(S, scope, D, Attr); 308960700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne} 309060700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne 3091803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 3092803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 3093f48f367cfe096fd307d36aff27d2d5a00e830571Eric Christophervoid Sema::ProcessDeclAttributeList(Scope *S, Decl *D, 309460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne const AttributeList *AttrList, 309560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 309611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola for (const AttributeList* l = AttrList; l; l = l->getNext()) { 30971b03c8719e2e45cf2769430335d7e71f18e6634aChandler Carruth ProcessDeclAttribute(*this, S, D, *l, NonInheritable, Inheritable); 309811e8ce7380856abee188b237c2600272df2ed09dRafael Espindola } 309911e8ce7380856abee188b237c2600272df2ed09dRafael Espindola 310011e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // GCC accepts 310111e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // static int a9 __attribute__((weakref)); 310211e8ce7380856abee188b237c2600272df2ed09dRafael Espindola // but that looks really pointless. We reject it. 310360700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && D->hasAttr<WeakRefAttr>() && !D->hasAttr<AliasAttr>()) { 310411e8ce7380856abee188b237c2600272df2ed09dRafael Espindola Diag(AttrList->getLoc(), diag::err_attribute_weakref_without_alias) << 3105dd0e490c24aeade2c59ca4cae171199f6af9f02eTed Kremenek dyn_cast<NamedDecl>(D)->getNameAsString(); 310611e8ce7380856abee188b237c2600272df2ed09dRafael Espindola return; 3107803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 3108803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 3109803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 3110e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclClonePragmaWeak - clone existing decl (maybe definition), 3111e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// #pragma weak needs a non-definition decl and source may not have one 31121eb4433ac451dc16f4133a88af2d002ac26c58efMike StumpNamedDecl * Sema::DeclClonePragmaWeak(NamedDecl *ND, IdentifierInfo *II) { 31137b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynn assert(isa<FunctionDecl>(ND) || isa<VarDecl>(ND)); 3114e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NamedDecl *NewD = 0; 3115e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 3116e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = FunctionDecl::Create(FD->getASTContext(), FD->getDeclContext(), 3117ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara FD->getInnerLocStart(), 3118e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn FD->getLocation(), DeclarationName(II), 3119a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall FD->getType(), FD->getTypeSourceInfo()); 3120b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (FD->getQualifier()) { 3121b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall FunctionDecl *NewFD = cast<FunctionDecl>(NewD); 3122c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewFD->setQualifierInfo(FD->getQualifierLoc()); 3123b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 3124e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } else if (VarDecl *VD = dyn_cast<VarDecl>(ND)) { 3125e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn NewD = VarDecl::Create(VD->getASTContext(), VD->getDeclContext(), 3126ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara VD->getInnerLocStart(), VD->getLocation(), II, 3127a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall VD->getType(), VD->getTypeSourceInfo(), 312816573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClass(), 312916573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor VD->getStorageClassAsWritten()); 3130b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall if (VD->getQualifier()) { 3131b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall VarDecl *NewVD = cast<VarDecl>(NewD); 3132c22b5fff39a7520207f165fb16a27a34b944bd9cDouglas Gregor NewVD->setQualifierInfo(VD->getQualifierLoc()); 3133b6217665c6a987f2d6c8665fd70365d7719ac4dfJohn McCall } 3134e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3135e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn return NewD; 3136e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 3137e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 3138e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// DeclApplyPragmaWeak - A declaration (maybe definition) needs #pragma weak 3139e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn/// applied to it, possibly with an alias. 31407b1fdbda2757cc4a7f25664475be44119d7f8e59Ryan Flynnvoid Sema::DeclApplyPragmaWeak(Scope *S, NamedDecl *ND, WeakInfo &W) { 3141c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getUsed()) return; // only do this once 3142c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner W.setUsed(true); 3143c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner if (W.getAlias()) { // clone decl, impersonate __attribute(weak,alias(...)) 3144c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner IdentifierInfo *NDId = ND->getIdentifier(); 3145c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner NamedDecl *NewD = DeclClonePragmaWeak(ND, W.getAlias()); 3146cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) AliasAttr(W.getLocation(), Context, 3147cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NDId->getName())); 3148cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt NewD->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 3149c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner WeakTopLevelDecl.push_back(NewD); 3150c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // FIXME: "hideous" code from Sema::LazilyCreateBuiltin 3151c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner // to insert Decl at TU scope, sorry. 3152c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner DeclContext *SavedContext = CurContext; 3153c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = Context.getTranslationUnitDecl(); 3154c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner PushOnScopeChains(NewD, S); 3155c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner CurContext = SavedContext; 3156c4f1fb125d4fe2c8879030d6f6e8b2f75cb681f1Chris Lattner } else { // just add weak to existing 3157cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt ND->addAttr(::new (Context) WeakAttr(W.getLocation(), Context)); 3158e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3159e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn} 3160e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 31610744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 31620744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 31630744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 316460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbournevoid Sema::ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD, 316560700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne bool NonInheritable, bool Inheritable) { 3166d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // It's valid to "forward-declare" #pragma weak, in which case we 3167d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall // have to do this. 316860700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne if (Inheritable && !WeakUndeclaredIdentifiers.empty()) { 3169d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (NamedDecl *ND = dyn_cast<NamedDecl>(D)) { 3170d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (IdentifierInfo *Id = ND->getIdentifier()) { 3171d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall llvm::DenseMap<IdentifierInfo*,WeakInfo>::iterator I 3172d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall = WeakUndeclaredIdentifiers.find(Id); 3173d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall if (I != WeakUndeclaredIdentifiers.end() && ND->hasLinkage()) { 3174d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall WeakInfo W = I->second; 3175d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall DeclApplyPragmaWeak(S, ND, W); 3176d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall WeakUndeclaredIdentifiers[Id] = W; 3177d4aff0e2b77879e27e7e4eac8c972aaaa293fa12John McCall } 3178e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3179e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3180e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn } 3181e25ff83fb7eee9eeda89b6f2371bc33a37bf1028Ryan Flynn 31820744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 31837f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes().getList()) 318460700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 3185bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 31860744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 31870744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 31880744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 31890744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 31900744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 31910744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 319260700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 3193bf91650557d9afa08e3d311a9c0a10d73c62cbfcMike Stump 31940744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 31950744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 319660700390a787471d3396f380e0679a6d08c27f1fPeter Collingbourne ProcessDeclAttributeList(S, D, Attrs, NonInheritable, Inheritable); 31970744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 319854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3199f85e193739c953358c865005855253af4f68a497John McCall/// Is the given declaration allowed to use a forbidden type? 3200f85e193739c953358c865005855253af4f68a497John McCallstatic bool isForbiddenTypeAllowed(Sema &S, Decl *decl) { 3201f85e193739c953358c865005855253af4f68a497John McCall // Private ivars are always okay. Unfortunately, people don't 3202f85e193739c953358c865005855253af4f68a497John McCall // always properly make their ivars private, even in system headers. 3203f85e193739c953358c865005855253af4f68a497John McCall // Plus we need to make fields okay, too. 3204f85e193739c953358c865005855253af4f68a497John McCall if (!isa<FieldDecl>(decl) && !isa<ObjCPropertyDecl>(decl)) 3205f85e193739c953358c865005855253af4f68a497John McCall return false; 3206f85e193739c953358c865005855253af4f68a497John McCall 3207f85e193739c953358c865005855253af4f68a497John McCall // Require it to be declared in a system header. 3208f85e193739c953358c865005855253af4f68a497John McCall return S.Context.getSourceManager().isInSystemHeader(decl->getLocation()); 3209f85e193739c953358c865005855253af4f68a497John McCall} 3210f85e193739c953358c865005855253af4f68a497John McCall 3211f85e193739c953358c865005855253af4f68a497John McCall/// Handle a delayed forbidden-type diagnostic. 3212f85e193739c953358c865005855253af4f68a497John McCallstatic void handleDelayedForbiddenType(Sema &S, DelayedDiagnostic &diag, 3213f85e193739c953358c865005855253af4f68a497John McCall Decl *decl) { 3214f85e193739c953358c865005855253af4f68a497John McCall if (decl && isForbiddenTypeAllowed(S, decl)) { 3215f85e193739c953358c865005855253af4f68a497John McCall decl->addAttr(new (S.Context) UnavailableAttr(diag.Loc, S.Context, 3216f85e193739c953358c865005855253af4f68a497John McCall "this system declaration uses an unsupported type")); 3217f85e193739c953358c865005855253af4f68a497John McCall return; 3218f85e193739c953358c865005855253af4f68a497John McCall } 3219f85e193739c953358c865005855253af4f68a497John McCall 3220f85e193739c953358c865005855253af4f68a497John McCall S.Diag(diag.Loc, diag.getForbiddenTypeDiagnostic()) 3221f85e193739c953358c865005855253af4f68a497John McCall << diag.getForbiddenTypeOperand() << diag.getForbiddenTypeArgument(); 3222f85e193739c953358c865005855253af4f68a497John McCall diag.Triggered = true; 3223f85e193739c953358c865005855253af4f68a497John McCall} 3224f85e193739c953358c865005855253af4f68a497John McCall 3225eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// This duplicates a vector push_back but hides the need to know the 3226eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall// size of the type. 3227eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::add(const DelayedDiagnostic &diag) { 3228eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize <= StackCapacity); 3229eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3230eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Grow the stack if necessary. 3231eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackSize == StackCapacity) { 3232eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall unsigned newCapacity = 2 * StackCapacity + 2; 3233eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall char *newBuffer = new char[newCapacity * sizeof(DelayedDiagnostic)]; 3234eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall const char *oldBuffer = (const char*) Stack; 3235eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3236eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (StackCapacity) 3237eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall memcpy(newBuffer, oldBuffer, StackCapacity * sizeof(DelayedDiagnostic)); 3238eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3239eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall delete[] oldBuffer; 3240eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Stack = reinterpret_cast<sema::DelayedDiagnostic*>(newBuffer); 3241eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall StackCapacity = newCapacity; 3242eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall } 3243eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 3244eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(StackSize < StackCapacity); 3245eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall new (&Stack[StackSize++]) DelayedDiagnostic(diag); 324654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 324754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3248eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCallvoid Sema::DelayedDiagnostics::popParsingDecl(Sema &S, ParsingDeclState state, 3249eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall Decl *decl) { 3250eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics &DD = S.DelayedDiagnostics; 325154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3252eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Check the invariants. 3253eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.StackSize >= state.SavedStackSize); 3254eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(state.SavedStackSize >= DD.ActiveStackBase); 3255eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall assert(DD.ParsingDepth > 0); 325654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3257eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // Drop the parsing depth. 3258eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.ParsingDepth--; 325954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3260eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // If there are no active diagnostics, we're done. 3261eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DD.StackSize == DD.ActiveStackBase) 3262eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall return; 326358e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 32642f514480c448708ec382a684cf5e035d3a827ec8John McCall // We only want to actually emit delayed diagnostics when we 32652f514480c448708ec382a684cf5e035d3a827ec8John McCall // successfully parsed a decl. 3266a7bf7bbdb1f89c35a09bc525c6862525ae82778fArgyrios Kyrtzidis if (decl && !decl->isInvalidDecl()) { 3267eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // We emit all the active diagnostics, not just those starting 3268eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall // from the saved state. The idea is this: we get one push for a 32692f514480c448708ec382a684cf5e035d3a827ec8John McCall // decl spec and another for each declarator; in a decl group like: 32702f514480c448708ec382a684cf5e035d3a827ec8John McCall // deprecated_typedef foo, *bar, baz(); 32712f514480c448708ec382a684cf5e035d3a827ec8John McCall // only the declarator pops will be passed decls. This is correct; 32722f514480c448708ec382a684cf5e035d3a827ec8John McCall // we really do need to consider delayed diagnostics from the decl spec 32732f514480c448708ec382a684cf5e035d3a827ec8John McCall // for each of the different declarations. 3274eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = DD.ActiveStackBase, e = DD.StackSize; i != e; ++i) { 3275eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostic &diag = DD.Stack[i]; 3276eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (diag.Triggered) 32772f514480c448708ec382a684cf5e035d3a827ec8John McCall continue; 32782f514480c448708ec382a684cf5e035d3a827ec8John McCall 3279eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall switch (diag.Kind) { 32802f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Deprecation: 3281eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedDeprecationCheck(diag, decl); 32822f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 32832f514480c448708ec382a684cf5e035d3a827ec8John McCall 32842f514480c448708ec382a684cf5e035d3a827ec8John McCall case DelayedDiagnostic::Access: 3285eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall S.HandleDelayedAccessCheck(diag, decl); 32862f514480c448708ec382a684cf5e035d3a827ec8John McCall break; 3287f85e193739c953358c865005855253af4f68a497John McCall 3288f85e193739c953358c865005855253af4f68a497John McCall case DelayedDiagnostic::ForbiddenType: 3289f85e193739c953358c865005855253af4f68a497John McCall handleDelayedForbiddenType(S, diag, decl); 3290f85e193739c953358c865005855253af4f68a497John McCall break; 329154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 329254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 329354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 329454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 329558e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall // Destroy all the delayed diagnostics we're about to pop off. 3296eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall for (unsigned i = state.SavedStackSize, e = DD.StackSize; i != e; ++i) 329729233802236f7fe1db20e00eca4f5cc8f3f64adeDouglas Gregor DD.Stack[i].Destroy(); 329858e6f34e4d2c668562e1c391162ee9de7b05fbb2John McCall 3299eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DD.StackSize = state.SavedStackSize; 33002f514480c448708ec382a684cf5e035d3a827ec8John McCall} 33012f514480c448708ec382a684cf5e035d3a827ec8John McCall 33022f514480c448708ec382a684cf5e035d3a827ec8John McCallstatic bool isDeclDeprecated(Decl *D) { 33032f514480c448708ec382a684cf5e035d3a827ec8John McCall do { 33040a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor if (D->isDeprecated()) 33052f514480c448708ec382a684cf5e035d3a827ec8John McCall return true; 33062f514480c448708ec382a684cf5e035d3a827ec8John McCall } while ((D = cast_or_null<Decl>(D->getDeclContext()))); 33072f514480c448708ec382a684cf5e035d3a827ec8John McCall return false; 33082f514480c448708ec382a684cf5e035d3a827ec8John McCall} 33092f514480c448708ec382a684cf5e035d3a827ec8John McCall 33109c3087b0b0bea2fd782205c1274ebfc4290265e0John McCallvoid Sema::HandleDelayedDeprecationCheck(DelayedDiagnostic &DD, 33112f514480c448708ec382a684cf5e035d3a827ec8John McCall Decl *Ctx) { 33122f514480c448708ec382a684cf5e035d3a827ec8John McCall if (isDeclDeprecated(Ctx)) 33132f514480c448708ec382a684cf5e035d3a827ec8John McCall return; 33142f514480c448708ec382a684cf5e035d3a827ec8John McCall 33152f514480c448708ec382a684cf5e035d3a827ec8John McCall DD.Triggered = true; 3316ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!DD.getDeprecationMessage().empty()) 3317c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated_message) 3318ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName() 3319ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationMessage(); 3320c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian else 3321c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(DD.Loc, diag::warn_deprecated) 3322ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer << DD.getDeprecationDecl()->getDeclName(); 332354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 332454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 3325ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramervoid Sema::EmitDeprecationWarning(NamedDecl *D, llvm::StringRef Message, 33268e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian SourceLocation Loc, 332789ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian const ObjCInterfaceDecl *UnknownObjCClass) { 332854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Delay if we're currently parsing a declaration. 3329eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall if (DelayedDiagnostics.shouldDelayDiagnostics()) { 3330eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall DelayedDiagnostics.add(DelayedDiagnostic::makeDeprecation(Loc, D, Message)); 333154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 333254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 333354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 333454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Otherwise, don't warn if our current context is deprecated. 333554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (isDeclDeprecated(cast<Decl>(CurContext))) 333654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return; 3337ce2d186a421526e94d9e417ced141ae6c891cf48Benjamin Kramer if (!Message.empty()) 3338c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian Diag(Loc, diag::warn_deprecated_message) << D->getDeclName() 3339c4b35cfdb977f6427fe0d5725bf104e1b425d72eFariborz Jahanian << Message; 33408e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian else { 3341743b82bf3c500de45715498dbf25f0fb39e71462Peter Collingbourne if (!UnknownObjCClass) 33428e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated) << D->getDeclName(); 334389ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian else { 33448e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian Diag(Loc, diag::warn_deprecated_fwdclass_message) << D->getDeclName(); 334589ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian Diag(UnknownObjCClass->getLocation(), diag::note_forward_class); 334689ebaed91cca7fd296ec7804e4e9fb68949c1d0eFariborz Jahanian } 33478e5fc9be37c6828ad008f22730e3baac1bef1686Fariborz Jahanian } 334854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall} 3349