SemaDeclAttr.cpp revision 55d3aaf9a537888734762170823daf750ea9036d
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 146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner#include "Sema.h" 156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner#include "clang/AST/ASTContext.h" 16acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/DeclObjC.h" 17acc5f3e42334525bf28c86471551f83dfce222d5Daniel Dunbar#include "clang/AST/Expr.h" 18fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner#include "clang/Basic/TargetInfo.h" 1912bc692a78582f1cc32791325981aadcffb04c5eDaniel Dunbar#include "clang/Parse/DeclSpec.h" 206e1eb87c04a3acd50888375dad59fac06b7ceb1fTed Kremenek#include <llvm/ADT/StringExtras.h> 216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerusing namespace clang; 226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 23e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 24e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Helper functions 25e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 26e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 27d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbarstatic const FunctionType *getFunctionType(Decl *d) { 286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType Ty; 296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (ValueDecl *decl = dyn_cast<ValueDecl>(d)) 306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *decl = dyn_cast<FieldDecl>(d)) 326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getType(); 336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypedefDecl* decl = dyn_cast<TypedefDecl>(d)) 346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = decl->getUnderlyingType(); 356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return 0; 376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Ty->isFunctionPointerType()) 396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Ty = Ty->getAsPointerType()->getPointeeType(); 40d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 41d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return Ty->getAsFunctionType(); 426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 443568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// FIXME: We should provide an abstraction around a method or function 453568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar// to provide the following bits of information. 463568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 47d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// isFunctionOrMethod - Return true if the given decl has function 48d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// type (function or function-typed variable) or an Objective-C 49d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// method. 503568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic bool isFunctionOrMethod(Decl *d) { 51d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return getFunctionType(d) || isa<ObjCMethodDecl>(d); 52d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar} 533568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 54d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto - Return true if the given decl has a argument 55d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// information. This decl should have already passed 56d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// isFunctionOrMethod. 57d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbarstatic bool hasFunctionProto(Decl *d) { 58d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 5972564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return isa<FunctionProtoType>(FnTy); 60d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } else { 61d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar assert(isa<ObjCMethodDecl>(d)); 62d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar return true; 63d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar } 643568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 653568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 66d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// getFunctionOrMethodNumArgs - Return number of function or method 67d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// arguments. It is an error to call this on a K&R function (use 68d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar/// hasFunctionProto first). 693568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic unsigned getFunctionOrMethodNumArgs(Decl *d) { 7089951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 7172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getNumArgs(); 7289951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_size(); 733568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 743568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 753568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic QualType getFunctionOrMethodArgType(Decl *d, unsigned Idx) { 7689951a86b594513c2a013532ed45d197413b1087Chris Lattner if (const FunctionType *FnTy = getFunctionType(d)) 7772564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor return cast<FunctionProtoType>(FnTy)->getArgType(Idx); 7889951a86b594513c2a013532ed45d197413b1087Chris Lattner 7989951a86b594513c2a013532ed45d197413b1087Chris Lattner return cast<ObjCMethodDecl>(d)->param_begin()[Idx]->getType(); 803568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 813568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 823568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbarstatic bool isFunctionOrMethodVariadic(Decl *d) { 83d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (const FunctionType *FnTy = getFunctionType(d)) { 8472564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor const FunctionProtoType *proto = cast<FunctionProtoType>(FnTy); 853568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return proto->isVariadic(); 863568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } else { 873568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar return cast<ObjCMethodDecl>(d)->isVariadic(); 883568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar } 893568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar} 903568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar 916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattnerstatic inline bool isNSStringType(QualType T, ASTContext &Ctx) { 92b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner const PointerType *PT = T->getAsPointerType(); 93b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!PT) 946b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 96b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner const ObjCInterfaceType *ClsT =PT->getPointeeType()->getAsObjCInterfaceType(); 976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!ClsT) 986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return false; 996b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner IdentifierInfo* ClsName = ClsT->getDecl()->getIdentifier(); 1016b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should we walk the chain of classes? 1036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return ClsName == &Ctx.Idents.get("NSString") || 1046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ClsName == &Ctx.Idents.get("NSMutableString"); 1056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 107085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbarstatic inline bool isCFStringType(QualType T, ASTContext &Ctx) { 108085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const PointerType *PT = T->getAsPointerType(); 109085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!PT) 110085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 111085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 112085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordType *RT = PT->getPointeeType()->getAsRecordType(); 113085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!RT) 114085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 115085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 116085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar const RecordDecl *RD = RT->getDecl(); 117085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (RD->getTagKind() != TagDecl::TK_struct) 118085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return false; 119085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 120085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return RD->getIdentifier() == &Ctx.Idents.get("__CFString"); 121085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar} 122085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar 123e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 124e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner// Attribute Implementations 125e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner//===----------------------------------------------------------------------===// 126e5c5ee1cff9ec084f176fa252774262677857ad2Chris Lattner 1273068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// FIXME: All this manual attribute parsing code is gross. At the 1283068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// least add some helper functions to check most argument patterns (# 1293068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar// and types of args). 1303068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 131803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleExtVectorTypeAttr(Decl *d, const AttributeList &Attr, 132803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner Sema &S) { 133545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner TypedefDecl *tDecl = dyn_cast<TypedefDecl>(d); 134545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (tDecl == 0) { 135803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(Attr.getLoc(), diag::err_typecheck_ext_vector_not_typedef); 136545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner return; 1376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner QualType curType = tDecl->getUnderlyingType(); 1406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 141545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 1423c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 145545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 1466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner llvm::APSInt vecSize(32); 147803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 148fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 149fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "ext_vector_type" << sizeExpr->getSourceRange(); 1506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // unlike gcc's vector_size attribute, we do not allow vectors to be defined 1536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // in conjunction with complex types (pointers, arrays, functions, etc.). 154b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!curType->isIntegerType() && !curType->isRealFloatingType()) { 155d162584991885ab004a02573a73ce06422b921fcChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << curType; 1566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // unlike gcc's vector_size attribute, the size is specified as the 1596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // number of elements, not the number of bytes. 1606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue()); 1616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize == 0) { 163fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 164fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 1656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 1666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Instantiate/Install the vector type, the number of elements is > 0. 168803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner tDecl->setUnderlyingType(S.Context.getExtVectorType(curType, vectorSize)); 1696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Remember this typedef decl, we will need it later for diagnostics. 170803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.ExtVectorDecls.push_back(tDecl); 1716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 173065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 174065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// HandleVectorSizeAttribute - this attribute is only applicable to 175065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// integral and float scalars, although arrays, pointers, and function 176065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// return values are allowed in conjunction with this construct. Aggregates 177065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// with this attribute are invalid, even if they are of the same size as a 178065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// corresponding scalar. 179065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// The raw attribute should contain precisely 1 argument, the vector size 180065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// for the variable, measured in bytes. If curType and rawAttr are well 181065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// formed, this routine will return a new vector type. 182803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVectorSizeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 183065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner QualType CurType; 184065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 185065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner CurType = VD->getType(); 186065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 187065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner CurType = TD->getUnderlyingType(); 188065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else { 189fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 190fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "vector_size" << SourceRange(Attr.getLoc(), Attr.getLoc()); 191065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 192065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner } 193065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 194065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // Check the attribute arugments. 195545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 1963c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 197065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 1986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 199545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *sizeExpr = static_cast<Expr *>(Attr.getArg(0)); 2006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner llvm::APSInt vecSize(32); 201803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!sizeExpr->isIntegerConstantExpr(vecSize, S.Context)) { 202fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 203fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "vector_size" << sizeExpr->getSourceRange(); 204065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2056b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // navigate to the base type - we need to provide for vector pointers, 2076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // vector arrays, and functions returning vectors. 208b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (CurType->isPointerType() || CurType->isArrayType() || 209b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner CurType->isFunctionType()) { 2106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner assert(0 && "HandleVector(): Complex type construction unimplemented"); 2116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner /* FIXME: rebuild the type from the inside out, vectorizing the inner type. 2126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner do { 2136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (PointerType *PT = dyn_cast<PointerType>(canonType)) 2146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = PT->getPointeeType().getTypePtr(); 2156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (ArrayType *AT = dyn_cast<ArrayType>(canonType)) 2166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = AT->getElementType().getTypePtr(); 2176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FunctionType *FT = dyn_cast<FunctionType>(canonType)) 2186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType = FT->getResultType().getTypePtr(); 2196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } while (canonType->isPointerType() || canonType->isArrayType() || 2206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner canonType->isFunctionType()); 2216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner */ 2226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the base type must be integer or float. 224b77792eabf5882cf9af8cc810599b20432fda6c2Chris Lattner if (!CurType->isIntegerType() && !CurType->isRealFloatingType()) { 225d162584991885ab004a02573a73ce06422b921fcChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_vector_type) << CurType; 226065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 228803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner unsigned typeSize = static_cast<unsigned>(S.Context.getTypeSize(CurType)); 2296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // vecSize is specified in bytes - convert to bits. 2306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned vectorSize = static_cast<unsigned>(vecSize.getZExtValue() * 8); 2316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the vector size needs to be an integral multiple of the type size. 2336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize % typeSize) { 234fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_invalid_size) 235fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 236065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (vectorSize == 0) { 239fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_zero_size) 240fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << sizeExpr->getSourceRange(); 241065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner return; 2426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 243065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 244065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // Success! Instantiate the vector type, the number of elements is > 0, and 245065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner // not required to be a power of 2, unlike GCC. 246803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner CurType = S.Context.getVectorType(CurType, vectorSize/typeSize); 247065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner 248065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 249065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner VD->setType(CurType); 250065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner else 251065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner cast<TypedefDecl>(D)->setUnderlyingType(CurType); 2526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 254803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandlePackedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 2556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 256545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 0) { 2573c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 2586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 2596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 2606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 2616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TagDecl *TD = dyn_cast<TagDecl>(d)) 2620b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner TD->addAttr(::new (S.Context) PackedAttr(1)); 2636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (FieldDecl *FD = dyn_cast<FieldDecl>(d)) { 2646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // If the alignment is less than or equal to 8 bits, the packed attribute 2656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // has no effect. 2666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!FD->getType()->isIncompleteType() && 267803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Context.getTypeAlign(FD->getType()) <= 8) 268fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored_for_field_of_type) 26908631c5fa053867146b5ee8be658c229f6bf127cChris Lattner << Attr.getName() << FD->getType(); 2706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else 2710b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner FD->addAttr(::new (S.Context) PackedAttr(1)); 2726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else 2733c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 2746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 2756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 27696329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenekstatic void HandleIBOutletAttr(Decl *d, const AttributeList &Attr, Sema &S) { 27796329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // check the attribute arguments. 27896329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek if (Attr.getNumArgs() > 0) { 2793c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 28096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek return; 28196329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek } 28296329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 28396329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // The IBOutlet attribute only applies to instance variables of Objective-C 28496329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek // classes. 285327426076e1acc8217307cb236269ccf08c18fe6Ted Kremenek if (isa<ObjCIvarDecl>(d) || isa<ObjCPropertyDecl>(d)) 2860b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) IBOutletAttr()); 28796329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek else 288327426076e1acc8217307cb236269ccf08c18fe6Ted Kremenek S.Diag(Attr.getLoc(), diag::err_attribute_iboutlet); 28996329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek} 29096329d4e07a9bcddb5a927892b70408c8fd8c474Ted Kremenek 291eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenekstatic void HandleNonNullAttr(Decl *d, const AttributeList &Attr, Sema &S) { 292eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // GCC ignores the nonnull attribute on K&R style function 293eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // prototypes, so we ignore it as well 294d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 295fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 296026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "nonnull" << 0 /*function*/; 297eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 298eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 299eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 300d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 301eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 302eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The nonnull attribute only applies to pointers. 303eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::SmallVector<unsigned, 10> NonNullArgs; 304eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 305eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek for (AttributeList::arg_iterator I=Attr.arg_begin(), 306eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek E=Attr.arg_end(); I!=E; ++I) { 307eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 308eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 309eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // The argument must be an integer constant expression. 310f5e883474796afd26e52a010cd9bf90374fa1915Ted Kremenek Expr *Ex = static_cast<Expr *>(*I); 311eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek llvm::APSInt ArgNum(32); 312eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (!Ex->isIntegerConstantExpr(ArgNum, S.Context)) { 313fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 314fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 315eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 316eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 317eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 318eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek unsigned x = (unsigned) ArgNum.getZExtValue(); 319eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 320eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek if (x < 1 || x > NumArgs) { 321fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 32230bc96544346bea42921cf6837e66cef80d664b4Chris Lattner << "nonnull" << I.getArgNum() << Ex->getSourceRange(); 323eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek return; 324eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 325465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek 326465172f304248a9aab6f2c398a836ce4e25efbbfTed Kremenek --x; 327eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 328eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // Is the function argument a pointer type? 32946bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, x); 33046bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek if (!T->isPointerType() && !T->isBlockPointerType()) { 331eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek // FIXME: Should also highlight argument in decl. 332fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_nonnull_pointers_only) 333fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "nonnull" << Ex->getSourceRange(); 3347fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek continue; 335eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 336eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 337eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek NonNullArgs.push_back(x); 338eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 339eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 3407fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek // If no arguments were specified to __attribute__((nonnull)) then all 3417fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek // pointer arguments have a nonnull attribute. 3427fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 34346bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek for (unsigned I = 0, E = getFunctionOrMethodNumArgs(d); I != E; ++I) { 34446bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek QualType T = getFunctionOrMethodArgType(d, I); 34546bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek if (T->isPointerType() || T->isBlockPointerType()) 346d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar NonNullArgs.push_back(I); 34746bbacac37141ed9d01d5b6473e8211554b02710Ted Kremenek } 3487fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3497fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek if (NonNullArgs.empty()) { 3507fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek S.Diag(Attr.getLoc(), diag::warn_attribute_nonnull_no_pointers); 3517fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek return; 3527fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek } 353eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek } 3547fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek 3557fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned* start = &NonNullArgs[0]; 3567fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek unsigned size = NonNullArgs.size(); 3577fb43c17eb2b4102f40a80a355629aacd70589adTed Kremenek std::sort(start, start + size); 3580b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) NonNullAttr(start, size)); 359eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek} 360eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek 361803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAliasAttr(Decl *d, const AttributeList &Attr, Sema &S) { 3626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 363545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 3643c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 3656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 3666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 3676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 368545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 3696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 3706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 3716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 373fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 3743c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "alias" << 1; 3756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 3766b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 3776b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3786b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner const char *Alias = Str->getStrData(); 3796b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned AliasLen = Str->getByteLength(); 3806b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: check if target symbol exists in current file 3826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 3830b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) AliasAttr(std::string(Alias, AliasLen))); 3846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 3856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 386af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbarstatic void HandleAlwaysInlineAttr(Decl *d, const AttributeList &Attr, 387af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar Sema &S) { 388af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar // check the attribute arguments. 389af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar if (Attr.getNumArgs() != 0) { 3903c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 391af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar return; 392af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar } 3935bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 3945bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 3955bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 3965bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson << "always_inline" << 0 /*function*/; 3975bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 3985bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 399af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 4000b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) AlwaysInlineAttr()); 401af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar} 402af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar 403803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNoReturnAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 405545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 4063c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 4076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 4086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 409d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar 410d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d)) { 411fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 412026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "noreturn" << 0 /*function*/; 4136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 4146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 4156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 4160b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) NoReturnAttr()); 4176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 4186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 41973798892751e378cbcdef43579c1d41685091fd0Ted Kremenekstatic void HandleUnusedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 42073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek // check the attribute arguments. 42173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek if (Attr.getNumArgs() != 0) { 4223c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 42373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 42473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 42573798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 426d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isa<VarDecl>(d) && !isFunctionOrMethod(d)) { 427fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 428026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "unused" << 2 /*variable and function*/; 42973798892751e378cbcdef43579c1d41685091fd0Ted Kremenek return; 43073798892751e378cbcdef43579c1d41685091fd0Ted Kremenek } 43173798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 4320b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) UnusedAttr()); 43373798892751e378cbcdef43579c1d41685091fd0Ted Kremenek} 43473798892751e378cbcdef43579c1d41685091fd0Ted Kremenek 435b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbarstatic void HandleUsedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 436b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar // check the attribute arguments. 437b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (Attr.getNumArgs() != 0) { 438b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 439b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 440b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 441b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 442b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar if (const VarDecl *VD = dyn_cast<VarDecl>(d)) { 443186204bfcf9c53d48143ec300d4c3d036fed4140Daniel Dunbar if (VD->hasLocalStorage() || VD->hasExternalStorage()) { 444b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "used"; 445b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 446b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 447b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } else if (!isFunctionOrMethod(d)) { 448b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 449026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "used" << 2 /*variable and function*/; 450b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar return; 451b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar } 452b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 4530b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) UsedAttr()); 454b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar} 455b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar 4563068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleConstructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4573068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 4583068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 459fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 460fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 4613068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 4623068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4633068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4643068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 4653068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 4663068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 4673068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 4683068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!E->isIntegerConstantExpr(Idx, S.Context)) { 469fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 4703c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "constructor" << 1 << E->getSourceRange(); 4713068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 4723068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4733068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 4743068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4753068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4763068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar FunctionDecl *Fn = dyn_cast<FunctionDecl>(d); 4773068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!Fn) { 478fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 479026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "constructor" << 0 /*function*/; 4803068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 4813068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4823068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4830b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) ConstructorAttr(priority)); 4843068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 4853068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4863068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbarstatic void HandleDestructorAttr(Decl *d, const AttributeList &Attr, Sema &S) { 4873068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar // check the attribute arguments. 4883068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() != 0 && Attr.getNumArgs() != 1) { 489fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 490fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0 or 1"; 4913068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 4923068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 4933068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 4943068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar int priority = 65535; // FIXME: Do not hardcode such constants. 4953068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (Attr.getNumArgs() > 0) { 4963068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar Expr *E = static_cast<Expr *>(Attr.getArg(0)); 4973068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar llvm::APSInt Idx(32); 4983068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar if (!E->isIntegerConstantExpr(Idx, S.Context)) { 499fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 5003c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "destructor" << 1 << E->getSourceRange(); 5013068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5023068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar priority = Idx.getZExtValue(); 5043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5053068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5066782fc6925a85c3772253e272745589a0c799c15Anders Carlsson if (!isa<FunctionDecl>(d)) { 507fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 508026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "destructor" << 0 /*function*/; 5093068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar return; 5103068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar } 5113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 5120b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) DestructorAttr(priority)); 5133068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar} 5143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar 515803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleDeprecatedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 517545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 5183c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 5196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5220b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) DeprecatedAttr()); 5236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 5246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 525bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanianstatic void HandleUnavailableAttr(Decl *d, const AttributeList &Attr, Sema &S) { 526bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian // check the attribute arguments. 527bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian if (Attr.getNumArgs() != 0) { 528bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 529bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian return; 530bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian } 531bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 5320b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) UnavailableAttr()); 533bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian} 534bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian 535803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleVisibilityAttr(Decl *d, const AttributeList &Attr, Sema &S) { 5366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 537545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 5383c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 5396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 542545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *Arg = static_cast<Expr*>(Attr.getArg(0)); 5436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Arg = Arg->IgnoreParenCasts(); 5446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *Str = dyn_cast<StringLiteral>(Arg); 5456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Str == 0 || Str->isWide()) { 547fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 5483c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "visibility" << 1; 5496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner const char *TypeStr = Str->getStrData(); 5536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned TypeLen = Str->getByteLength(); 5546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner VisibilityAttr::VisibilityTypes type; 5556b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (TypeLen == 7 && !memcmp(TypeStr, "default", 7)) 5576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::DefaultVisibility; 5586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 6 && !memcmp(TypeStr, "hidden", 6)) 5596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; 5606b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 8 && !memcmp(TypeStr, "internal", 8)) 5616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::HiddenVisibility; // FIXME 5626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else if (TypeLen == 9 && !memcmp(TypeStr, "protected", 9)) 5636b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner type = VisibilityAttr::ProtectedVisibility; 5646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner else { 56508631c5fa053867146b5ee8be658c229f6bf127cChris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_unknown_visibility) << TypeStr; 5666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 5676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 5686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5690b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) VisibilityAttr(type)); 5706b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 5716b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 5720db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCExceptionAttr(Decl *D, const AttributeList &Attr, 5730db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner Sema &S) { 5740db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (Attr.getNumArgs() != 0) { 5750db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 5760db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 5770db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 5780db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 5790db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner ObjCInterfaceDecl *OCI = dyn_cast<ObjCInterfaceDecl>(D); 5800db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (OCI == 0) { 5810db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_requires_objc_interface); 5820db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner return; 5830db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner } 5840db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 5850b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) ObjCExceptionAttr()); 5860db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner} 5870db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner 5880db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattnerstatic void HandleObjCNSObject(Decl *D, const AttributeList &Attr, Sema &S) { 589fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (Attr.getNumArgs() != 0) { 590fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 591fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 592fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 5930db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) { 594fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian QualType T = TD->getUnderlyingType(); 595fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian if (!T->isPointerType() || 596fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian !T->getAsPointerType()->getPointeeType()->isRecordType()) { 597fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian S.Diag(TD->getLocation(), diag::err_nsobject_attribute); 598fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian return; 599fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 600fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian } 6010b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) ObjCNSObjectAttr()); 602fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian} 603fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian 604f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregorstatic void 605f9201e0ff1779567150b70856753d9f2c6a91467Douglas GregorHandleOverloadableAttr(Decl *D, const AttributeList &Attr, Sema &S) { 606f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (Attr.getNumArgs() != 0) { 607f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 608f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 609f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 610f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 611f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor if (!isa<FunctionDecl>(D)) { 612f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor S.Diag(Attr.getLoc(), diag::err_attribute_overloadable_not_function); 613f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor return; 614f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor } 615f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 6160b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) OverloadableAttr()); 617f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor} 618f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor 6199eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroffstatic void HandleBlocksAttr(Decl *d, const AttributeList &Attr, Sema &S) { 6209eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (!Attr.getParameterName()) { 621fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 6223c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << 1; 6239eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6249eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6259eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6269eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff if (Attr.getNumArgs() != 0) { 6273c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 6289eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6299eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6309eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6319eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff BlocksAttr::BlocksAttrTypes type; 63292e62b02226410bcad8584541b8f1ff4d35ebab9Chris Lattner if (Attr.getParameterName()->isStr("byref")) 6339eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff type = BlocksAttr::ByRef; 6349eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff else { 635fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 6363c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "blocks" << Attr.getParameterName(); 6379eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff return; 6389eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff } 6399eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 6400b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) BlocksAttr(type)); 6419eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff} 6429eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff 643770918281c5bdc7b5b3942285c407e3d62270053Anders Carlssonstatic void HandleSentinelAttr(Decl *d, const AttributeList &Attr, Sema &S) { 644770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // check the attribute arguments. 645770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 2) { 646fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) 647fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "0, 1 or 2"; 648770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 649770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 650770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 651770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int sentinel = 0; 652770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 0) { 653770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(0)); 654770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 655770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!E->isIntegerConstantExpr(Idx, S.Context)) { 656fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 6573c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 1 << E->getSourceRange(); 658770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 659770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 660770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson sentinel = Idx.getZExtValue(); 661770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 662770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (sentinel < 0) { 663fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_less_than_zero) 664fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 665770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 666770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 667770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 668770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 669770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson int nullPos = 0; 670770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (Attr.getNumArgs() > 1) { 671770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson Expr *E = static_cast<Expr *>(Attr.getArg(1)); 672770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson llvm::APSInt Idx(32); 673770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!E->isIntegerConstantExpr(Idx, S.Context)) { 674fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 6753c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "sentinel" << 2 << E->getSourceRange(); 676770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 677770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 678770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson nullPos = Idx.getZExtValue(); 679770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 680770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (nullPos > 1 || nullPos < 0) { 681770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: This error message could be improved, it would be nice 682770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // to say what the bounds actually are. 683fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_sentinel_not_zero_or_one) 684fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << E->getSourceRange(); 685770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 686770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 687770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 688770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 689770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (FunctionDecl *FD = dyn_cast<FunctionDecl>(d)) { 690897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner const FunctionType *FT = FD->getType()->getAsFunctionType(); 691897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner assert(FT && "FunctionDecl has non-function type?"); 692897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner 693897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (isa<FunctionNoProtoType>(FT)) { 694897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_named_arguments); 695897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner return; 696897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner } 697897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner 698897cd90fef4cd5139999585f3af31d85c2d07720Chris Lattner if (!cast<FunctionProtoType>(FT)->isVariadic()) { 699770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic); 700770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 701770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 702770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else if (ObjCMethodDecl *MD = dyn_cast<ObjCMethodDecl>(d)) { 703770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson if (!MD->isVariadic()) { 704770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_sentinel_not_variadic); 705770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 706770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 707770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } else { 708fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 709026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "sentinel" << 3 /*function or method*/; 710770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson return; 711770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson } 712770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 713770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson // FIXME: Actually create the attribute. 714770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson} 715770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson 716026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWarnUnusedResult(Decl *D, const AttributeList &Attr, Sema &S) { 717026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // check the attribute arguments. 718026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (Attr.getNumArgs() != 0) { 719026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 720026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 721026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 722026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 723026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner // TODO: could also be applied to methods? 724026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *Fn = dyn_cast<FunctionDecl>(D); 725026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (!Fn) { 726026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 727026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "warn_unused_result" << 0 /*function*/; 728026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner return; 729026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner } 730026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 7310b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner Fn->addAttr(::new (S.Context) WarnUnusedResultAttr()); 732026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner} 733026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 734026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleWeakAttr(Decl *D, const AttributeList &Attr, Sema &S) { 7356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 736545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 7373c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 7386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7406e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 7416e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // TODO: could also be applied to methods? 7426e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (!isa<FunctionDecl>(D) && !isa<VarDecl>(D)) { 7436e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7446e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak" << 2 /*variable and function*/; 7456e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 7466e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 7476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7480b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) WeakAttr()); 7496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 7506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 7516e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbarstatic void HandleWeakImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 7526e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // check the attribute arguments. 7536e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (Attr.getNumArgs() != 0) { 7546e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 7556e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 7566e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 7576e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 7586e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // weak_import only applies to variable & function declarations. 7596e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar bool isDef = false; 7606e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (VarDecl *VD = dyn_cast<VarDecl>(D)) { 7616e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = (!VD->hasExternalStorage() || VD->getInit()); 7626e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 7636e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar isDef = FD->getBody(); 764862a2c55c45ffcb0fa3dfa6b8d3dee8d30e305cfMike Stump } else if (isa<ObjCPropertyDecl>(D)) { 765862a2c55c45ffcb0fa3dfa6b8d3dee8d30e305cfMike Stump // We ignore weak import on properties 7661c90f4dc686ab872013544664c797604a309c563Mike Stump return; 7676e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } else { 7686e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 7696e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 7706e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 7716e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 7726e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 7736e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar // Merge should handle any subsequent violations. 7746e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar if (isDef) { 7756e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar S.Diag(Attr.getLoc(), 7766e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar diag::warn_attribute_weak_import_invalid_on_definition) 7776e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar << "weak_import" << 2 /*variable and function*/; 7786e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar return; 7796e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar } 7806e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 7816e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar D->addAttr(::new (S.Context) WeakImportAttr()); 7826e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar} 7836e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar 784026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleDLLImportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 7856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 786545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 7873c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 7886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 7896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 7907b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 7912f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Attribute can be applied only to functions or variables. 792026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (isa<VarDecl>(D)) { 7930b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) DLLImportAttr()); 7942f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 7952f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 7962f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 797026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 7982f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (!FD) { 7992f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 800026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "dllimport" << 2 /*variable and function*/; 8012f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8022f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8032f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8042f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Currently, the dllimport attribute is ignored for inlined functions. 8052f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Warning is emitted. 8062f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (FD->isInline()) { 8072f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 8082f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8092f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8102f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8112f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // The attribute is also overridden by a subsequent declaration as dllexport. 8122f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Warning is emitted. 8132f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov for (AttributeList *nextAttr = Attr.getNext(); nextAttr; 8142f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov nextAttr = nextAttr->getNext()) { 8152f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (nextAttr->getKind() == AttributeList::AT_dllexport) { 8162f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 8172f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8182f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8192f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8202f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 821026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (D->getAttr<DLLExportAttr>()) { 8222f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllimport"; 8232f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8242f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8252f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8260b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) DLLImportAttr()); 8276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 829026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleDLLExportAttr(Decl *D, const AttributeList &Attr, Sema &S) { 8306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 831545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8323c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8357b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8362f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Attribute can be applied only to functions or variables. 837026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner if (isa<VarDecl>(D)) { 8380b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) DLLExportAttr()); 8392f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8402f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8412f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 842026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner FunctionDecl *FD = dyn_cast<FunctionDecl>(D); 8432f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (!FD) { 8442f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 845026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "dllexport" << 2 /*variable and function*/; 8462f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8472f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8482f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8492f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // Currently, the dllexport attribute is ignored for inlined functions, 8502f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // unless the -fkeep-inline-functions flag has been used. Warning is emitted; 8512f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov if (FD->isInline()) { 8522f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov // FIXME: ... unless the -fkeep-inline-functions flag has been used. 8532f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "dllexport"; 8542f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov return; 8552f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov } 8562f402708e62f89fb875442802e3d3f20fc909d33Anton Korobeynikov 8570b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) DLLExportAttr()); 8586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 8596b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 860026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattnerstatic void HandleSectionAttr(Decl *D, const AttributeList &Attr, Sema &S) { 86117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Attribute has no arguments. 86217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (Attr.getNumArgs() != 1) { 86317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 86417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 86517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 86617f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 86717f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // Make sure that there is a string literal as the sections's single 86817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // argument. 86917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar StringLiteral *SE = 87017f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar dyn_cast<StringLiteral>(static_cast<Expr *>(Attr.getArg(0))); 87117f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar if (!SE) { 87217f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar // FIXME 87317f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_annotate_no_string); 87417f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar return; 87517f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar } 8760b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner D->addAttr(::new (S.Context) SectionAttr(std::string(SE->getStrData(), 8770b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner SE->getByteLength()))); 87817f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar} 87917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar 880803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleStdCallAttr(Decl *d, const AttributeList &Attr, Sema &S) { 8817b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute has no arguments. 882545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 8833c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 8846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 8856b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 8867b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8877b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute can be applied only to functions. 8887b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (!isa<FunctionDecl>(d)) { 8897b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 890026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "stdcall" << 0 /*function*/; 8917b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 8927b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 8937b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 8947b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // stdcall and fastcall attributes are mutually incompatible. 8957b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (d->getAttr<FastCallAttr>()) { 8967b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 8977b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov << "stdcall" << "fastcall"; 8987b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 8997b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9007b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9010b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) StdCallAttr()); 9026b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 904803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFastCallAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9057b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // Attribute has no arguments. 906545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 9073c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 9107b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9117b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (!isa<FunctionDecl>(d)) { 9127b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 913026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "fastcall" << 0 /*function*/; 9147b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 9157b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9167b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9177b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov // stdcall and fastcall attributes are mutually incompatible. 9187b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov if (d->getAttr<StdCallAttr>()) { 9197b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov S.Diag(Attr.getLoc(), diag::err_attributes_are_not_compatible) 9207b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov << "fastcall" << "stdcall"; 9217b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov return; 9227b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov } 9237b0a52f982e3514425fc8a3c8fc728f17c27c08eAnton Korobeynikov 9240b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) FastCallAttr()); 9256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9266b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 927803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleNothrowAttr(Decl *d, const AttributeList &Attr, Sema &S) { 9286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 929545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 9303c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 9316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 9326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 9336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 9340b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) NoThrowAttr()); 9356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 9366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 937232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandleConstAttr(Decl *d, const AttributeList &Attr, Sema &S) { 938232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 939232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 9403c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 941232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 942232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 943232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 9440b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) ConstAttr()); 945232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 946232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 947232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlssonstatic void HandlePureAttr(Decl *d, const AttributeList &Attr, Sema &S) { 948232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson // check the attribute arguments. 949232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson if (Attr.getNumArgs() != 0) { 9503c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 951232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson return; 952232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson } 953232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 9540b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) PureAttr()); 955232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson} 956232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson 957f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlssonstatic void HandleCleanupAttr(Decl *d, const AttributeList &Attr, Sema &S) { 95889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // Match gcc which ignores cleanup attrs when compiling C++. 95989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson if (S.getLangOptions().CPlusPlus) 96089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 96189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson 962f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!Attr.getParameterName()) { 963f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 964f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 965f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 966f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 967f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (Attr.getNumArgs() != 0) { 968f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 969f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 970f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 971f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 972f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson VarDecl *VD = dyn_cast<VarDecl>(d); 973f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 974f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!VD || !VD->hasLocalStorage()) { 975f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << "cleanup"; 976f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 977f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 978f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 979f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson // Look up the function 98047b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor NamedDecl *CleanupDecl = S.LookupName(S.TUScope, Attr.getParameterName(), 98147b9a1ca55e61e37f5a368740e29de190345acc6Douglas Gregor Sema::LookupOrdinaryName); 982f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!CleanupDecl) { 98389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_found) << 984f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 985f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 986f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 987f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 988f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson FunctionDecl *FD = dyn_cast<FunctionDecl>(CleanupDecl); 989f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (!FD) { 99089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_arg_not_function) << 991f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 992f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 993f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 994f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 995f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson if (FD->getNumParams() != 1) { 99689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_cleanup_func_must_take_one_arg) << 997f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson Attr.getParameterName(); 998f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson return; 999f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson } 1000f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 100189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // We're currently more strict than GCC about what function types we accept. 100289941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson // If this ever proves to be a problem it should be easy to fix. 100389941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType Ty = S.Context.getPointerType(VD->getType()); 100489941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson QualType ParamTy = FD->getParamDecl(0)->getType(); 1005b90052a8cc4745126f7bb2e6573f07e22f24b840Anders Carlsson if (S.CheckAssignmentConstraints(Ty, ParamTy) != Sema::Compatible) { 100689941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson S.Diag(Attr.getLoc(), 100789941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson diag::err_attribute_cleanup_func_arg_incompatible_type) << 100889941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson Attr.getParameterName() << ParamTy << Ty; 100989941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson return; 101089941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson } 101189941c1c68d8e4eec3c8ea8ee68e34d9e3c7b083Anders Carlsson 10120b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) CleanupAttr(FD)); 1013f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson} 1014f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson 10156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner/// Handle __attribute__((format(type,idx,firstarg))) attributes 10166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner/// based on http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html 1017803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleFormatAttr(Decl *d, const AttributeList &Attr, Sema &S) { 10186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1019545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (!Attr.getParameterName()) { 1020fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_string) 10213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 1; 10226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1025545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 2) { 10263c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 3; 10276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1030d3f2c10f881311831a84114179342ff4db55e0c3Daniel Dunbar if (!isFunctionOrMethod(d) || !hasFunctionProto(d)) { 1031fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1032026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "format" << 0 /*function*/; 10336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10356b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: in C++ the implicit 'this' function parameter also counts. 10376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // this is needed in order to be compatible with GCC 10386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the index must start in 1 and the limit is numargs+1 10393568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar unsigned NumArgs = getFunctionOrMethodNumArgs(d); 10406b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned FirstIdx = 1; 10416b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1042545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner const char *Format = Attr.getParameterName()->getName(); 1043545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner unsigned FormatLen = Attr.getParameterName()->getLength(); 10446b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10456b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Normalize the argument, __foo__ becomes foo. 10466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FormatLen > 4 && Format[0] == '_' && Format[1] == '_' && 10476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Format[FormatLen - 2] == '_' && Format[FormatLen - 1] == '_') { 10486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Format += 2; 10496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner FormatLen -= 4; 10506b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10516b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool Supported = false; 10536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool is_NSString = false; 10546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner bool is_strftime = false; 1055085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar bool is_CFString = false; 10566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner switch (FormatLen) { 10586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner default: break; 1059803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 5: Supported = !memcmp(Format, "scanf", 5); break; 1060803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 6: Supported = !memcmp(Format, "printf", 6); break; 1061803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case 7: Supported = !memcmp(Format, "strfmon", 7); break; 10626b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner case 8: 1063085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar Supported = (is_strftime = !memcmp(Format, "strftime", 8)) || 1064085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar (is_NSString = !memcmp(Format, "NSString", 8)) || 1065085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar (is_CFString = !memcmp(Format, "CFString", 8)); 10666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner break; 10676b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10686b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10696b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!Supported) { 1070fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_type_not_supported) 1071fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "format" << Attr.getParameterName()->getName(); 10726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10756b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // checks for the 2nd argument 1076545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *IdxExpr = static_cast<Expr *>(Attr.getArg(0)); 1077803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt Idx(32); 1078803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!IdxExpr->isIntegerConstantExpr(Idx, S.Context)) { 1079fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 10803c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 10816b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10826b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10836b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10846b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (Idx.getZExtValue() < FirstIdx || Idx.getZExtValue() > NumArgs) { 1085fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 10863c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 2 << IdxExpr->getSourceRange(); 10876b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 10886b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 10896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10906b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Do we need to bounds check? 10916b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned ArgIdx = Idx.getZExtValue() - 1; 10926b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 10936b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // make sure the format string is really a string 10943568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar QualType Ty = getFunctionOrMethodArgType(d, ArgIdx); 10956b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1096085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (is_CFString) { 1097085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar if (!isCFStringType(Ty, S.Context)) { 1098fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1099fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a CFString" << IdxExpr->getSourceRange(); 1100085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar return; 1101085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } 1102085e8f7da37a227ceee7f98b724e0a42e04d01caDaniel Dunbar } else if (is_NSString) { 11036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: do we need to check if the type is NSString*? What are 11046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // the semantics? 1105803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!isNSStringType(Ty, S.Context)) { 11066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should highlight the actual expression that has the 11076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // wrong type. 1108fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1109fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "an NSString" << IdxExpr->getSourceRange(); 11106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11116b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (!Ty->isPointerType() || 11136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner !Ty->getAsPointerType()->getPointeeType()->isCharType()) { 11146b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: Should highlight the actual expression that has the 11156b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // wrong type. 1116fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_attribute_not) 1117fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "a string type" << IdxExpr->getSourceRange(); 11186b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11206b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11216b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the 3rd argument 1122545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *FirstArgExpr = static_cast<Expr *>(Attr.getArg(1)); 1123803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner llvm::APSInt FirstArg(32); 1124803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!FirstArgExpr->isIntegerConstantExpr(FirstArg, S.Context)) { 1125fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_n_not_int) 11263c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 11276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11286b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11306b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check if the function is variadic if the 3rd argument non-zero 11316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 11323568249c2d72d58b835a22d9186f5a6b4fc4bcd6Daniel Dunbar if (isFunctionOrMethodVariadic(d)) { 11336b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner ++NumArgs; // +1 for ... 11346b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else { 1135803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner S.Diag(d->getLocation(), diag::err_format_attribute_requires_variadic); 11366b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11376b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11386b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11396b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11403c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // strftime requires FirstArg to be 0 because it doesn't read from any 11413c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner // variable the input is just the current time + the format string. 11426b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (is_strftime) { 11436b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (FirstArg != 0) { 1144fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_format_strftime_third_parameter) 1145fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << FirstArgExpr->getSourceRange(); 11466b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11476b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // if 0 it disables parameter checking (to use with e.g. va_list) 11496b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } else if (FirstArg != 0 && FirstArg != NumArgs) { 1150fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_out_of_bounds) 11513c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner << "format" << 3 << FirstArgExpr->getSourceRange(); 11526b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11536b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11546b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11550b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) FormatAttr(std::string(Format, FormatLen), 11566b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Idx.getZExtValue(), FirstArg.getZExtValue())); 11576b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11586b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11590b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleTransparentUnionAttr(Decl *d, const AttributeList &Attr, 11600b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner Sema &S) { 11616b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1162545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 0) { 11633c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 11646b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11656b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11666b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1167bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // FIXME: This shouldn't be restricted to typedefs 1168bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TypedefDecl *TD = dyn_cast<TypedefDecl>(d); 1169bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman if (!TD || !TD->getUnderlyingType()->isUnionType()) { 1170fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1171026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "transparent_union" << 1 /*union*/; 11726b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 11736b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 11746b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1175bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman RecordDecl* RD = TD->getUnderlyingType()->getAsUnionType()->getDecl(); 1176bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 1177bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // FIXME: Should we do a check for RD->isDefinition()? 1178bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman 1179bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // FIXME: This isn't supposed to be restricted to pointers, but otherwise 1180bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // we might silently generate incorrect code; see following code 118144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (RecordDecl::field_iterator Field = RD->field_begin(), 118244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor FieldEnd = RD->field_end(); 118344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor Field != FieldEnd; ++Field) { 118444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor if (!Field->getType()->isPointerType()) { 1185bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman S.Diag(Attr.getLoc(), diag::warn_transparent_union_nonpointer); 1186bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman return; 1187bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 1188bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman } 11896b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1190bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // FIXME: This is a complete hack; we should be properly propagating 1191bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // transparent_union through Sema. That said, this is close enough to 1192bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // correctly compile all the common cases of transparent_union without 1193bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman // errors or warnings 1194bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman QualType NewTy = S.Context.VoidPtrTy; 1195bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman NewTy.addConst(); 1196bc88745b43f440341e60ed93b0d27bac7c418029Eli Friedman TD->setUnderlyingType(NewTy); 11976b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 11986b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 11990b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleAnnotateAttr(Decl *d, const AttributeList &Attr, Sema &S) { 12006b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1201545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() != 1) { 12023c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12036b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12046b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 1205545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner Expr *argExpr = static_cast<Expr *>(Attr.getArg(0)); 12066b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner StringLiteral *SE = dyn_cast<StringLiteral>(argExpr); 12076b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12086b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // Make sure that there is a string literal as the annotation's single 12096b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // argument. 12106b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner if (!SE) { 12110b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_annotate_no_string); 12126b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12136b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12140b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) AnnotateAttr(std::string(SE->getStrData(), 12150b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner SE->getByteLength()))); 12166b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 12176b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 1218803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void HandleAlignedAttr(Decl *d, const AttributeList &Attr, Sema &S) { 12196b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // check the attribute arguments. 1220545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() > 1) { 12213c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 12226b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12236b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 12246b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner 12256b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner unsigned Align = 0; 1226545dd3401e7f31c256d69cb948a45d5ca781064cChris Lattner if (Attr.getNumArgs() == 0) { 12276b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner // FIXME: This should be the target specific maximum alignment. 12287549c5589ac0d2087e55f2bdd4854adef23f29fdDaniel Dunbar // (For now we just use 128 bits which is the maximum on X86). 12296b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner Align = 128; 12300b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) AlignedAttr(Align)); 12316b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner return; 12326b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner } 123349e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner 123449e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner Expr *alignmentExpr = static_cast<Expr *>(Attr.getArg(0)); 123549e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner llvm::APSInt Alignment(32); 1236803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner if (!alignmentExpr->isIntegerConstantExpr(Alignment, S.Context)) { 1237fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 1238fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "aligned" << alignmentExpr->getSourceRange(); 123949e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner return; 124049e2d34f74f98bef23e37c415ce90cd783cdea24Chris Lattner } 1241396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar if (!llvm::isPowerOf2_64(Alignment.getZExtValue())) { 1242396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar S.Diag(Attr.getLoc(), diag::err_attribute_aligned_not_power_of_two) 1243396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar << alignmentExpr->getSourceRange(); 1244396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar return; 1245396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar } 1246396b2a22788b0134018760d6a476de1e20f81334Daniel Dunbar 12470b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) AlignedAttr(Alignment.getZExtValue() * 8)); 12486b6b5372f4b60b1c5ee101709e71a04642c835f4Chris Lattner} 1249fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 12500b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner/// HandleModeAttr - This attribute modifies the width of a decl with 1251065c5a801f46dda8ff0cd6ad954c4e5f94a3be75Chris Lattner/// primitive type. 1252fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 1253fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// Despite what would be logical, the mode attribute is a decl attribute, 1254fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// not a type attribute: 'int ** __attribute((mode(HI))) *G;' tries to make 1255fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 'G' be HImode, not an intermediate pointer. 1256fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner/// 12570b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattnerstatic void HandleModeAttr(Decl *D, const AttributeList &Attr, Sema &S) { 1258fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // This attribute isn't documented, but glibc uses it. It changes 1259fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // the width of an int or unsigned int to the specified size. 1260fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1261fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Check that there aren't any arguments 1262fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Attr.getNumArgs() != 0) { 12633c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1264fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1265fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1266fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1267fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner IdentifierInfo *Name = Attr.getParameterName(); 1268fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!Name) { 12690b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner S.Diag(Attr.getLoc(), diag::err_attribute_missing_parameter_name); 1270fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1271fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1272fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner const char *Str = Name->getName(); 1273fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned Len = Name->getLength(); 1274fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1275fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Normalize the attribute name, __foo__ becomes foo. 1276fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (Len > 4 && Str[0] == '_' && Str[1] == '_' && 1277fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Str[Len - 2] == '_' && Str[Len - 1] == '_') { 1278fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Str += 2; 1279fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner Len -= 4; 1280fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1281fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1282fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner unsigned DestWidth = 0; 1283fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner bool IntegerMode = true; 128473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman bool ComplexMode = false; 1285fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (Len) { 1286fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 2: 128773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman switch (Str[0]) { 128873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'Q': DestWidth = 8; break; 128973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'H': DestWidth = 16; break; 129073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'S': DestWidth = 32; break; 129173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'D': DestWidth = 64; break; 129273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'X': DestWidth = 96; break; 129373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 'T': DestWidth = 128; break; 129473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 129573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (Str[1] == 'F') { 129673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 129773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] == 'C') { 129873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman IntegerMode = false; 129973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman ComplexMode = true; 130073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (Str[1] != 'I') { 130173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman DestWidth = 0; 130273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1303fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1304fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 4: 1305fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // FIXME: glibc uses 'word' to define register_t; this is narrower than a 1306fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // pointer on PIC16 and other embedded platforms. 1307fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "word", 4)) 13080b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1309fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "byte", 4)) 13100b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getCharWidth(); 1311fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1312fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 7: 1313fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!memcmp(Str, "pointer", 7)) 13140b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner DestWidth = S.Context.Target.getPointerWidth(0); 1315fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1316fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1317fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1318fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType OldTy; 1319fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1320fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = TD->getUnderlyingType(); 1321fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (ValueDecl *VD = dyn_cast<ValueDecl>(D)) 1322fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner OldTy = VD->getType(); 1323fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else { 1324fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner S.Diag(D->getLocation(), diag::err_attr_wrong_decl) 1325fa25bbb351f4fdd977f51254119cdfc2b525ce90Chris Lattner << "mode" << SourceRange(Attr.getLoc(), Attr.getLoc()); 1326fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1327fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 132873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 132973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->getAsBuiltinType() && !OldTy->isComplexType()) 133073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_not_primitive); 133173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman else if (IntegerMode) { 133273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isIntegralType()) 133373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 133473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else if (ComplexMode) { 133573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isComplexType()) 133673397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 133773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } else { 133873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!OldTy->isFloatingType()) 133973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_mode_wrong_type); 134073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 134173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman 1342f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Sync this with InitializePredefinedMacros; we need to match 1343f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // int8_t and friends, at least with glibc. 1344f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure 32/64-bit integers don't get defined to types of 1345f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // the wrong width on unusual platforms. 1346f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Make sure floating-point mappings are accurate 1347f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman // FIXME: Support XF and TF types 1348fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner QualType NewTy; 1349fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner switch (DestWidth) { 1350fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 0: 13513c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unknown_machine_mode) << Name; 1352fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1353fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner default: 13543c73c41cefcfe76f36b7bed72c9f1ec195490951Chris Lattner S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1355fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner return; 1356fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 8: 135773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 135873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 135973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 136073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1361fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 13620b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.SignedCharTy; 1363fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 13640b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedCharTy; 1365fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1366fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 16: 136773397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (!IntegerMode) { 136873397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 136973397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman return; 137073397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman } 1371fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (OldTy->isSignedIntegerType()) 13720b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.ShortTy; 1373fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 13740b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedShortTy; 1375fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1376fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 32: 1377fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 13780b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.FloatTy; 1379fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 13800b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.IntTy; 1381fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 13820b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedIntTy; 1383fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 1384fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner case 64: 1385fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (!IntegerMode) 13860b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.DoubleTy; 1387fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else if (OldTy->isSignedIntegerType()) 13880b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.LongLongTy; 1389fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 13900b2f4da7651feb6edab5e4a657fce058f0dd514aChris Lattner NewTy = S.Context.UnsignedLongLongTy; 1391fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner break; 139273397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman case 96: 139373397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.LongDoubleTy; 139473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1395f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman case 128: 1396f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman if (!IntegerMode) { 1397f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman S.Diag(Attr.getLoc(), diag::err_unsupported_machine_mode) << Name; 1398f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman return; 1399f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman } 1400f98aba35e6c3da5aae61843fc01334939e4e12ecEli Friedman NewTy = S.Context.getFixedWidthIntType(128, OldTy->isSignedIntegerType()); 140173397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman break; 1402fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1403fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 140473397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman if (ComplexMode) { 140573397496fec250f565f49e27f8ba79f94f4e7427Eli Friedman NewTy = S.Context.getComplexType(NewTy); 1406fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner } 1407fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner 1408fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner // Install the new type. 1409fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner if (TypedefDecl *TD = dyn_cast<TypedefDecl>(D)) 1410fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner TD->setUnderlyingType(NewTy); 1411fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner else 1412fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner cast<ValueDecl>(D)->setType(NewTy); 1413fbf1347e1e225cbc206563bba3f0a75f9ceaa571Chris Lattner} 14140744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1415d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlssonstatic void HandleNodebugAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1416d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson // check the attribute arguments. 1417d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson if (Attr.getNumArgs() > 0) { 1418d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 1419d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1420d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1421e896d98548b02223c7740d807a0aa6e20fba7079Anders Carlsson 14225bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 1423d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1424026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner << "nodebug" << 0 /*function*/; 1425d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson return; 1426d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson } 1427d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 14280b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) NodebugAttr()); 1429d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson} 1430d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson 14315bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlssonstatic void HandleNoinlineAttr(Decl *d, const AttributeList &Attr, Sema &S) { 14325bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson // check the attribute arguments. 14335bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (Attr.getNumArgs() != 0) { 14345bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 0; 14355bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 14365bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 14375bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 14385bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson if (!isFunctionOrMethod(d)) { 14395bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 14405bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson << "noinline" << 0 /*function*/; 14415bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson return; 14425bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson } 14435bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 14440b2b6e1cb1573bb295c0a65813dc4df8d57f305bChris Lattner d->addAttr(::new (S.Context) NoinlineAttr()); 14455bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson} 14465bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson 1447ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanianstatic void HandleRegparmAttr(Decl *d, const AttributeList &Attr, Sema &S) { 1448ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian // check the attribute arguments. 1449ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (Attr.getNumArgs() != 1) { 145055d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_wrong_number_arguments) << 1; 1451ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 1452ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 145355d3aaf9a537888734762170823daf750ea9036dEli Friedman 1454ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian if (!isFunctionOrMethod(d)) { 1455ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian S.Diag(Attr.getLoc(), diag::warn_attribute_wrong_decl_type) 1456ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian << "regparm" << 0 /*function*/; 1457ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian return; 1458ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian } 145955d3aaf9a537888734762170823daf750ea9036dEli Friedman 146055d3aaf9a537888734762170823daf750ea9036dEli Friedman Expr *NumParamsExpr = static_cast<Expr *>(Attr.getArg(0)); 146155d3aaf9a537888734762170823daf750ea9036dEli Friedman llvm::APSInt NumParams(32); 146255d3aaf9a537888734762170823daf750ea9036dEli Friedman if (!NumParamsExpr->isIntegerConstantExpr(NumParams, S.Context)) { 146355d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_argument_not_int) 146455d3aaf9a537888734762170823daf750ea9036dEli Friedman << "regparm" << NumParamsExpr->getSourceRange(); 146555d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 146655d3aaf9a537888734762170823daf750ea9036dEli Friedman } 146755d3aaf9a537888734762170823daf750ea9036dEli Friedman 146855d3aaf9a537888734762170823daf750ea9036dEli Friedman if (NumParams.getLimitedValue(4) > 3) { 146955d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_regparm_invalid_number) 147055d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 147155d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 147255d3aaf9a537888734762170823daf750ea9036dEli Friedman } 147355d3aaf9a537888734762170823daf750ea9036dEli Friedman 147455d3aaf9a537888734762170823daf750ea9036dEli Friedman const char *TargetPrefix = S.Context.Target.getTargetPrefix(); 147555d3aaf9a537888734762170823daf750ea9036dEli Friedman unsigned PointerWidth = S.Context.Target.getPointerWidth(0); 147655d3aaf9a537888734762170823daf750ea9036dEli Friedman if (strcmp(TargetPrefix, "x86") || PointerWidth != 32) { 147755d3aaf9a537888734762170823daf750ea9036dEli Friedman S.Diag(Attr.getLoc(), diag::err_attribute_regparm_wrong_platform) 147855d3aaf9a537888734762170823daf750ea9036dEli Friedman << NumParamsExpr->getSourceRange(); 147955d3aaf9a537888734762170823daf750ea9036dEli Friedman return; 148055d3aaf9a537888734762170823daf750ea9036dEli Friedman } 148155d3aaf9a537888734762170823daf750ea9036dEli Friedman 148255d3aaf9a537888734762170823daf750ea9036dEli Friedman d->addAttr(::new (S.Context) RegparmAttr(NumParams.getZExtValue())); 1483ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian} 1484ee760330a415635369556796a97afcfd6207f4dcFariborz Jahanian 14850744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 14860744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner// Top Level Sema Entry Points 14870744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner//===----------------------------------------------------------------------===// 14880744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1489a89d82c1c819d17042ec2db4283326a850229b21Sebastian Redl/// ProcessDeclAttribute - Apply the specific attribute to the specified decl if 1490803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// the attribute applies to decls. If the attribute is a type attribute, just 1491803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// silently ignore it. 1492803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnerstatic void ProcessDeclAttribute(Decl *D, const AttributeList &Attr, Sema &S) { 1493803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner switch (Attr.getKind()) { 14943068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_IBOutlet: HandleIBOutletAttr (D, Attr, S); break; 1495803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_address_space: 1496ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian case AttributeList::AT_objc_gc: 1497ba372b85524f712e5b97a176f6ce0197d365835dFariborz Jahanian // Ignore these, these are type attributes, handled by ProcessTypeAttributes. 1498803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 1499803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_alias: HandleAliasAttr (D, Attr, S); break; 15003068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_aligned: HandleAlignedAttr (D, Attr, S); break; 1501af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar case AttributeList::AT_always_inline: 1502af668b0e7d3581dea3b4f29a9262686e83887e5bDaniel Dunbar HandleAlwaysInlineAttr (D, Attr, S); break; 15033068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_annotate: HandleAnnotateAttr (D, Attr, S); break; 15043068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_constructor: HandleConstructorAttr(D, Attr, S); break; 1505803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_deprecated: HandleDeprecatedAttr(D, Attr, S); break; 15063068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_destructor: HandleDestructorAttr(D, Attr, S); break; 1507803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_dllexport: HandleDLLExportAttr (D, Attr, S); break; 15083068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_dllimport: HandleDLLImportAttr (D, Attr, S); break; 15093068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_ext_vector_type: 15103068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar HandleExtVectorTypeAttr(D, Attr, S); 15113068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar break; 1512803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_fastcall: HandleFastCallAttr (D, Attr, S); break; 1513803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_format: HandleFormatAttr (D, Attr, S); break; 15143068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_mode: HandleModeAttr (D, Attr, S); break; 1515eb2b2a3f1898f146c6e153a64ec58ec5e1750bd2Ted Kremenek case AttributeList::AT_nonnull: HandleNonNullAttr (D, Attr, S); break; 15163068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_noreturn: HandleNoReturnAttr (D, Attr, S); break; 15173068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_nothrow: HandleNothrowAttr (D, Attr, S); break; 15183068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_packed: HandlePackedAttr (D, Attr, S); break; 151917f194f4393a67fd28ad822c06d32b8cb99bad3fDaniel Dunbar case AttributeList::AT_section: HandleSectionAttr (D, Attr, S); break; 15203068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_stdcall: HandleStdCallAttr (D, Attr, S); break; 1521bc1c877fe28fb6a825f0b226a0a2da99e713ea03Fariborz Jahanian case AttributeList::AT_unavailable: HandleUnavailableAttr(D, Attr, S); break; 152273798892751e378cbcdef43579c1d41685091fd0Ted Kremenek case AttributeList::AT_unused: HandleUnusedAttr (D, Attr, S); break; 1523b805dad4aa386aeae0f72512895bd238678d37a5Daniel Dunbar case AttributeList::AT_used: HandleUsedAttr (D, Attr, S); break; 15243068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_vector_size: HandleVectorSizeAttr(D, Attr, S); break; 15253068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_visibility: HandleVisibilityAttr(D, Attr, S); break; 1526026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner case AttributeList::AT_warn_unused_result: HandleWarnUnusedResult(D,Attr,S); 1527026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner break; 15283068ae0feb5d477477f45045f7ec9d0414fe57f3Daniel Dunbar case AttributeList::AT_weak: HandleWeakAttr (D, Attr, S); break; 15296e775dbafba2ab6634decc489eb3b4301b4b506bDaniel Dunbar case AttributeList::AT_weak_import: HandleWeakImportAttr(D, Attr, S); break; 1530803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner case AttributeList::AT_transparent_union: 1531803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner HandleTransparentUnionAttr(D, Attr, S); 1532803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 15330db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner case AttributeList::AT_objc_exception: 15340db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner HandleObjCExceptionAttr(D, Attr, S); 15350db29ece81d360dcefbe912339c34abe5917f6a9Chris Lattner break; 1536f9201e0ff1779567150b70856753d9f2c6a91467Douglas Gregor case AttributeList::AT_overloadable:HandleOverloadableAttr(D, Attr, S); break; 1537fa23c1d9adc99c662c1c0e192817185809d95614Fariborz Jahanian case AttributeList::AT_nsobject: HandleObjCNSObject (D, Attr, S); break; 15389eae5761c0691c0f11d7a823b8ee54f05786cbbeSteve Naroff case AttributeList::AT_blocks: HandleBlocksAttr (D, Attr, S); break; 1539770918281c5bdc7b5b3942285c407e3d62270053Anders Carlsson case AttributeList::AT_sentinel: HandleSentinelAttr (D, Attr, S); break; 1540232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson case AttributeList::AT_const: HandleConstAttr (D, Attr, S); break; 1541232eb7d33b96ad8f99de3b5ae840421b3a7c6cb7Anders Carlsson case AttributeList::AT_pure: HandlePureAttr (D, Attr, S); break; 1542f6e35d0b9f1e9f1b4c5d3ef924415fa5e7c89849Anders Carlsson case AttributeList::AT_cleanup: HandleCleanupAttr (D, Attr, S); break; 1543d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson case AttributeList::AT_nodebug: HandleNodebugAttr (D, Attr, S); break; 15445bab788d40026ad6e932a3cd9b86bc13f8a27661Anders Carlsson case AttributeList::AT_noinline: HandleNoinlineAttr (D, Attr, S); break; 154555d3aaf9a537888734762170823daf750ea9036dEli Friedman case AttributeList::AT_regparm: HandleRegparmAttr (D, Attr, S); break; 154605f8e471aae971c9867dbac148eba1275a570814Anders Carlsson case AttributeList::IgnoredAttribute: 154705f8e471aae971c9867dbac148eba1275a570814Anders Carlsson // Just ignore 154805f8e471aae971c9867dbac148eba1275a570814Anders Carlsson break; 1549803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner default: 1550d87df37e0adaba0d5e33da7b1a14d7f1d94c5eefAnders Carlsson S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName(); 1551803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner break; 1552803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 1553803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 1554803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 1555803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// ProcessDeclAttributeList - Apply all the decl attributes in the specified 1556803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner/// attribute list to the specified decl, ignoring any type attributes. 1557803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattnervoid Sema::ProcessDeclAttributeList(Decl *D, const AttributeList *AttrList) { 1558803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner while (AttrList) { 1559803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner ProcessDeclAttribute(D, *AttrList, *this); 1560803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner AttrList = AttrList->getNext(); 1561803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner } 1562803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner} 1563803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 1564803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 15650744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in 15660744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// it, apply them to D. This is a bit tricky because PD can have attributes 15670744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner/// specified in many different places, and we need to find and apply them all. 15680744e5f3325e2d2107506002e43c37ea0155a5acChris Lattnervoid Sema::ProcessDeclAttributes(Decl *D, const Declarator &PD) { 15690744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Apply decl attributes from the DeclSpec if present. 15700744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getDeclSpec().getAttributes()) 15710744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner ProcessDeclAttributeList(D, Attrs); 1572803d08039c5194cf51071ed1d8fbc5b18b3ec38bChris Lattner 15730744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Walk the declarator structure, applying decl attributes that were in a type 15740744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // position to the decl itself. This handles cases like: 15750744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // int *__attr__(x)** D; 15760744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // when X is a decl attribute. 15770744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner for (unsigned i = 0, e = PD.getNumTypeObjects(); i != e; ++i) 15780744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getTypeObject(i).getAttrs()) 15790744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner ProcessDeclAttributeList(D, Attrs); 15800744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 15810744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner // Finally, apply any attributes on the decl itself. 15820744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner if (const AttributeList *Attrs = PD.getAttributes()) 15830744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner ProcessDeclAttributeList(D, Attrs); 15840744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner} 15850744e5f3325e2d2107506002e43c37ea0155a5acChris Lattner 1586