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| author | dim <dim@FreeBSD.org> | 2014-03-21 17:53:59 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2014-03-21 17:53:59 +0000 |
| commit | 9cedb8bb69b89b0f0c529937247a6a80cabdbaec (patch) | |
| tree | c978f0e9ec1ab92dc8123783f30b08a7fd1e2a39 /contrib/llvm/tools/clang/lib/AST/ASTImporter.cpp | |
| parent | 03fdc2934eb61c44c049a02b02aa974cfdd8a0eb (diff) | |
| download | FreeBSD-src-9cedb8bb69b89b0f0c529937247a6a80cabdbaec.zip FreeBSD-src-9cedb8bb69b89b0f0c529937247a6a80cabdbaec.tar.gz | |
MFC 261991:
Upgrade our copy of llvm/clang to 3.4 release. This version supports
all of the features in the current working draft of the upcoming C++
standard, provisionally named C++1y.
The code generator's performance is greatly increased, and the loop
auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The
PowerPC backend has made several major improvements to code generation
quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ
backends have all seen major feature work.
Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.4/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html>
MFC 262121 (by emaste):
Update lldb for clang/llvm 3.4 import
This commit largely restores the lldb source to the upstream r196259
snapshot with the addition of threaded inferior support and a few bug
fixes.
Specific upstream lldb revisions restored include:
SVN git
181387 779e6ac
181703 7bef4e2
182099 b31044e
182650 f2dcf35
182683 0d91b80
183862 15c1774
183929 99447a6
184177 0b2934b
184948 4dc3761
184954 007e7bc
186990 eebd175
Sponsored by: DARPA, AFRL
MFC 262186 (by emaste):
Fix mismerge in r262121
A break statement was lost in the merge. The error had no functional
impact, but restore it to reduce the diff against upstream.
MFC 262303:
Pull in r197521 from upstream clang trunk (by rdivacky):
Use the integrated assembler by default on FreeBSD/ppc and ppc64.
Requested by: jhibbits
MFC 262611:
Pull in r196874 from upstream llvm trunk:
Fix a crash that occurs when PWD is invalid.
MCJIT needs to be able to run in hostile environments, even when PWD
is invalid. There's no need to crash MCJIT in this case.
The obvious fix is to simply leave MCContext's CompilationDir empty
when PWD can't be determined. This way, MCJIT clients,
and other clients that link with LLVM don't need a valid working directory.
If we do want to guarantee valid CompilationDir, that should be done
only for clients of getCompilationDir(). This is as simple as checking
for an empty string.
The only current use of getCompilationDir is EmitGenDwarfInfo, which
won't conceivably run with an invalid working dir. However, in the
purely hypothetically and untestable case that this happens, the
AT_comp_dir will be omitted from the compilation_unit DIE.
This should help fix assertions occurring with ports-mgmt/tinderbox,
when it is using jails, and sometimes invalidates clang's current
working directory.
Reported by: decke
MFC 262809:
Pull in r203007 from upstream clang trunk:
Don't produce an alias between destructors with different calling conventions.
Fixes pr19007.
(Please note that is an LLVM PR identifier, not a FreeBSD one.)
This should fix Firefox and/or libxul crashes (due to problems with
regparm/stdcall calling conventions) on i386.
Reported by: multiple users on freebsd-current
PR: bin/187103
MFC 263048:
Repair recognition of "CC" as an alias for the C++ compiler, since it
was silently broken by upstream for a Windows-specific use-case.
Apparently some versions of CMake still rely on this archaic feature...
Reported by: rakuco
MFC 263049:
Garbage collect the old way of adding the libstdc++ include directories
in clang's InitHeaderSearch.cpp. This has been superseded by David
Chisnall's commit in r255321.
Moreover, if libc++ is used, the libstdc++ include directories should
not be in the search path at all. These directories are now only used
if you pass -stdlib=libstdc++.
Diffstat (limited to 'contrib/llvm/tools/clang/lib/AST/ASTImporter.cpp')
| -rw-r--r-- | contrib/llvm/tools/clang/lib/AST/ASTImporter.cpp | 291 |
1 files changed, 268 insertions, 23 deletions
diff --git a/contrib/llvm/tools/clang/lib/AST/ASTImporter.cpp b/contrib/llvm/tools/clang/lib/AST/ASTImporter.cpp index 915eb6f..e16015b 100644 --- a/contrib/llvm/tools/clang/lib/AST/ASTImporter.cpp +++ b/contrib/llvm/tools/clang/lib/AST/ASTImporter.cpp @@ -106,6 +106,8 @@ namespace clang { bool ImportDefinition(RecordDecl *From, RecordDecl *To, ImportDefinitionKind Kind = IDK_Default); + bool ImportDefinition(VarDecl *From, VarDecl *To, + ImportDefinitionKind Kind = IDK_Default); bool ImportDefinition(EnumDecl *From, EnumDecl *To, ImportDefinitionKind Kind = IDK_Default); bool ImportDefinition(ObjCInterfaceDecl *From, ObjCInterfaceDecl *To, @@ -120,9 +122,12 @@ namespace clang { SmallVectorImpl<TemplateArgument> &ToArgs); bool IsStructuralMatch(RecordDecl *FromRecord, RecordDecl *ToRecord, bool Complain = true); + bool IsStructuralMatch(VarDecl *FromVar, VarDecl *ToVar, + bool Complain = true); bool IsStructuralMatch(EnumDecl *FromEnum, EnumDecl *ToRecord); bool IsStructuralMatch(EnumConstantDecl *FromEC, EnumConstantDecl *ToEC); bool IsStructuralMatch(ClassTemplateDecl *From, ClassTemplateDecl *To); + bool IsStructuralMatch(VarTemplateDecl *From, VarTemplateDecl *To); Decl *VisitDecl(Decl *D); Decl *VisitTranslationUnitDecl(TranslationUnitDecl *D); Decl *VisitNamespaceDecl(NamespaceDecl *D); @@ -157,7 +162,9 @@ namespace clang { Decl *VisitClassTemplateDecl(ClassTemplateDecl *D); Decl *VisitClassTemplateSpecializationDecl( ClassTemplateSpecializationDecl *D); - + Decl *VisitVarTemplateDecl(VarTemplateDecl *D); + Decl *VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D); + // Importing statements Stmt *VisitStmt(Stmt *S); @@ -400,6 +407,13 @@ static bool IsStructurallyEquivalent(StructuralEquivalenceContext &Context, return false; break; + case Type::Decayed: + if (!IsStructurallyEquivalent(Context, + cast<DecayedType>(T1)->getPointeeType(), + cast<DecayedType>(T2)->getPointeeType())) + return false; + break; + case Type::Pointer: if (!IsStructurallyEquivalent(Context, cast<PointerType>(T1)->getPointeeType(), @@ -1695,7 +1709,8 @@ QualType ASTNodeImporter::VisitAutoType(const AutoType *T) { return QualType(); } - return Importer.getToContext().getAutoType(ToDeduced, T->isDecltypeAuto()); + return Importer.getToContext().getAutoType(ToDeduced, T->isDecltypeAuto(), + /*IsDependent*/false); } QualType ASTNodeImporter::VisitRecordType(const RecordType *T) { @@ -1968,9 +1983,6 @@ bool ASTNodeImporter::ImportDefinition(RecordDecl *From, RecordDecl *To, = FromData.HasDeclaredCopyConstructorWithConstParam; ToData.HasDeclaredCopyAssignmentWithConstParam = FromData.HasDeclaredCopyAssignmentWithConstParam; - ToData.FailedImplicitMoveConstructor - = FromData.FailedImplicitMoveConstructor; - ToData.FailedImplicitMoveAssignment = FromData.FailedImplicitMoveAssignment; ToData.IsLambda = FromData.IsLambda; SmallVector<CXXBaseSpecifier *, 4> Bases; @@ -2010,6 +2022,21 @@ bool ASTNodeImporter::ImportDefinition(RecordDecl *From, RecordDecl *To, return false; } +bool ASTNodeImporter::ImportDefinition(VarDecl *From, VarDecl *To, + ImportDefinitionKind Kind) { + if (To->getDefinition()) + return false; + + // FIXME: Can we really import any initializer? Alternatively, we could force + // ourselves to import every declaration of a variable and then only use + // getInit() here. + To->setInit(Importer.Import(const_cast<Expr *>(From->getAnyInitializer()))); + + // FIXME: Other bits to merge? + + return false; +} + bool ASTNodeImporter::ImportDefinition(EnumDecl *From, EnumDecl *To, ImportDefinitionKind Kind) { if (To->getDefinition() || To->isBeingDefined()) { @@ -2148,13 +2175,30 @@ bool ASTNodeImporter::ImportTemplateArguments(const TemplateArgument *FromArgs, bool ASTNodeImporter::IsStructuralMatch(RecordDecl *FromRecord, RecordDecl *ToRecord, bool Complain) { + // Eliminate a potential failure point where we attempt to re-import + // something we're trying to import while completing ToRecord. + Decl *ToOrigin = Importer.GetOriginalDecl(ToRecord); + if (ToOrigin) { + RecordDecl *ToOriginRecord = dyn_cast<RecordDecl>(ToOrigin); + if (ToOriginRecord) + ToRecord = ToOriginRecord; + } + StructuralEquivalenceContext Ctx(Importer.getFromContext(), - Importer.getToContext(), + ToRecord->getASTContext(), Importer.getNonEquivalentDecls(), false, Complain); return Ctx.IsStructurallyEquivalent(FromRecord, ToRecord); } +bool ASTNodeImporter::IsStructuralMatch(VarDecl *FromVar, VarDecl *ToVar, + bool Complain) { + StructuralEquivalenceContext Ctx( + Importer.getFromContext(), Importer.getToContext(), + Importer.getNonEquivalentDecls(), false, Complain); + return Ctx.IsStructurallyEquivalent(FromVar, ToVar); +} + bool ASTNodeImporter::IsStructuralMatch(EnumDecl *FromEnum, EnumDecl *ToEnum) { StructuralEquivalenceContext Ctx(Importer.getFromContext(), Importer.getToContext(), @@ -2181,6 +2225,14 @@ bool ASTNodeImporter::IsStructuralMatch(ClassTemplateDecl *From, return Ctx.IsStructurallyEquivalent(From, To); } +bool ASTNodeImporter::IsStructuralMatch(VarTemplateDecl *From, + VarTemplateDecl *To) { + StructuralEquivalenceContext Ctx(Importer.getFromContext(), + Importer.getToContext(), + Importer.getNonEquivalentDecls()); + return Ctx.IsStructurallyEquivalent(From, To); +} + Decl *ASTNodeImporter::VisitDecl(Decl *D) { Importer.FromDiag(D->getLocation(), diag::err_unsupported_ast_node) << D->getDeclKindName(); @@ -2610,8 +2662,8 @@ Decl *ASTNodeImporter::VisitFunctionDecl(FunctionDecl *D) { continue; if (FunctionDecl *FoundFunction = dyn_cast<FunctionDecl>(FoundDecls[I])) { - if (isExternalLinkage(FoundFunction->getLinkage()) && - isExternalLinkage(D->getLinkage())) { + if (FoundFunction->hasExternalFormalLinkage() && + D->hasExternalFormalLinkage()) { if (Importer.IsStructurallyEquivalent(D->getType(), FoundFunction->getType())) { // FIXME: Actually try to merge the body and other attributes. @@ -2664,10 +2716,7 @@ Decl *ASTNodeImporter::VisitFunctionDecl(FunctionDecl *D) { FromEPI.NoexceptExpr) { FunctionProtoType::ExtProtoInfo DefaultEPI; FromTy = Importer.getFromContext().getFunctionType( - FromFPT->getResultType(), - ArrayRef<QualType>(FromFPT->arg_type_begin(), - FromFPT->getNumArgs()), - DefaultEPI); + FromFPT->getResultType(), FromFPT->getArgTypes(), DefaultEPI); usedDifferentExceptionSpec = true; } } @@ -2878,7 +2927,7 @@ Decl *ASTNodeImporter::VisitIndirectFieldDecl(IndirectFieldDecl *D) { if (Importer.IsStructurallyEquivalent(D->getType(), FoundField->getType(), - Name)) { + !Name.isEmpty())) { Importer.Imported(D, FoundField); return FoundField; } @@ -2965,7 +3014,8 @@ Decl *ASTNodeImporter::VisitObjCIvarDecl(ObjCIvarDecl *D) { Importer.Import(D->getInnerLocStart()), Loc, Name.getAsIdentifierInfo(), T, TInfo, D->getAccessControl(), - BitWidth, D->getSynthesize()); + BitWidth, D->getSynthesize(), + D->getBackingIvarReferencedInAccessor()); ToIvar->setLexicalDeclContext(LexicalDC); Importer.Imported(D, ToIvar); LexicalDC->addDeclInternal(ToIvar); @@ -2995,8 +3045,8 @@ Decl *ASTNodeImporter::VisitVarDecl(VarDecl *D) { if (VarDecl *FoundVar = dyn_cast<VarDecl>(FoundDecls[I])) { // We have found a variable that we may need to merge with. Check it. - if (isExternalLinkage(FoundVar->getLinkage()) && - isExternalLinkage(D->getLinkage())) { + if (FoundVar->hasExternalFormalLinkage() && + D->hasExternalFormalLinkage()) { if (Importer.IsStructurallyEquivalent(D->getType(), FoundVar->getType())) { MergeWithVar = FoundVar; @@ -3088,13 +3138,9 @@ Decl *ASTNodeImporter::VisitVarDecl(VarDecl *D) { LexicalDC->addDeclInternal(ToVar); // Merge the initializer. - // FIXME: Can we really import any initializer? Alternatively, we could force - // ourselves to import every declaration of a variable and then only use - // getInit() here. - ToVar->setInit(Importer.Import(const_cast<Expr *>(D->getAnyInitializer()))); + if (ImportDefinition(D, ToVar)) + return 0; - // FIXME: Other bits to merge? - return ToVar; } @@ -4108,6 +4154,205 @@ Decl *ASTNodeImporter::VisitClassTemplateSpecializationDecl( return D2; } +Decl *ASTNodeImporter::VisitVarTemplateDecl(VarTemplateDecl *D) { + // If this variable has a definition in the translation unit we're coming + // from, + // but this particular declaration is not that definition, import the + // definition and map to that. + VarDecl *Definition = + cast_or_null<VarDecl>(D->getTemplatedDecl()->getDefinition()); + if (Definition && Definition != D->getTemplatedDecl()) { + Decl *ImportedDef = Importer.Import(Definition->getDescribedVarTemplate()); + if (!ImportedDef) + return 0; + + return Importer.Imported(D, ImportedDef); + } + + // Import the major distinguishing characteristics of this variable template. + DeclContext *DC, *LexicalDC; + DeclarationName Name; + SourceLocation Loc; + if (ImportDeclParts(D, DC, LexicalDC, Name, Loc)) + return 0; + + // We may already have a template of the same name; try to find and match it. + assert(!DC->isFunctionOrMethod() && + "Variable templates cannot be declared at function scope"); + SmallVector<NamedDecl *, 4> ConflictingDecls; + SmallVector<NamedDecl *, 2> FoundDecls; + DC->localUncachedLookup(Name, FoundDecls); + for (unsigned I = 0, N = FoundDecls.size(); I != N; ++I) { + if (!FoundDecls[I]->isInIdentifierNamespace(Decl::IDNS_Ordinary)) + continue; + + Decl *Found = FoundDecls[I]; + if (VarTemplateDecl *FoundTemplate = dyn_cast<VarTemplateDecl>(Found)) { + if (IsStructuralMatch(D, FoundTemplate)) { + // The variable templates structurally match; call it the same template. + Importer.Imported(D->getTemplatedDecl(), + FoundTemplate->getTemplatedDecl()); + return Importer.Imported(D, FoundTemplate); + } + } + + ConflictingDecls.push_back(FoundDecls[I]); + } + + if (!ConflictingDecls.empty()) { + Name = Importer.HandleNameConflict(Name, DC, Decl::IDNS_Ordinary, + ConflictingDecls.data(), + ConflictingDecls.size()); + } + + if (!Name) + return 0; + + VarDecl *DTemplated = D->getTemplatedDecl(); + + // Import the type. + QualType T = Importer.Import(DTemplated->getType()); + if (T.isNull()) + return 0; + + // Create the declaration that is being templated. + SourceLocation StartLoc = Importer.Import(DTemplated->getLocStart()); + SourceLocation IdLoc = Importer.Import(DTemplated->getLocation()); + TypeSourceInfo *TInfo = Importer.Import(DTemplated->getTypeSourceInfo()); + VarDecl *D2Templated = VarDecl::Create(Importer.getToContext(), DC, StartLoc, + IdLoc, Name.getAsIdentifierInfo(), T, + TInfo, DTemplated->getStorageClass()); + D2Templated->setAccess(DTemplated->getAccess()); + D2Templated->setQualifierInfo(Importer.Import(DTemplated->getQualifierLoc())); + D2Templated->setLexicalDeclContext(LexicalDC); + + // Importer.Imported(DTemplated, D2Templated); + // LexicalDC->addDeclInternal(D2Templated); + + // Merge the initializer. + if (ImportDefinition(DTemplated, D2Templated)) + return 0; + + // Create the variable template declaration itself. + TemplateParameterList *TemplateParams = + ImportTemplateParameterList(D->getTemplateParameters()); + if (!TemplateParams) + return 0; + + VarTemplateDecl *D2 = VarTemplateDecl::Create( + Importer.getToContext(), DC, Loc, Name, TemplateParams, D2Templated, + /*PrevDecl=*/0); + D2Templated->setDescribedVarTemplate(D2); + + D2->setAccess(D->getAccess()); + D2->setLexicalDeclContext(LexicalDC); + LexicalDC->addDeclInternal(D2); + + // Note the relationship between the variable templates. + Importer.Imported(D, D2); + Importer.Imported(DTemplated, D2Templated); + + if (DTemplated->isThisDeclarationADefinition() && + !D2Templated->isThisDeclarationADefinition()) { + // FIXME: Import definition! + } + + return D2; +} + +Decl *ASTNodeImporter::VisitVarTemplateSpecializationDecl( + VarTemplateSpecializationDecl *D) { + // If this record has a definition in the translation unit we're coming from, + // but this particular declaration is not that definition, import the + // definition and map to that. + VarDecl *Definition = D->getDefinition(); + if (Definition && Definition != D) { + Decl *ImportedDef = Importer.Import(Definition); + if (!ImportedDef) + return 0; + + return Importer.Imported(D, ImportedDef); + } + + VarTemplateDecl *VarTemplate = cast_or_null<VarTemplateDecl>( + Importer.Import(D->getSpecializedTemplate())); + if (!VarTemplate) + return 0; + + // Import the context of this declaration. + DeclContext *DC = VarTemplate->getDeclContext(); + if (!DC) + return 0; + + DeclContext *LexicalDC = DC; + if (D->getDeclContext() != D->getLexicalDeclContext()) { + LexicalDC = Importer.ImportContext(D->getLexicalDeclContext()); + if (!LexicalDC) + return 0; + } + + // Import the location of this declaration. + SourceLocation StartLoc = Importer.Import(D->getLocStart()); + SourceLocation IdLoc = Importer.Import(D->getLocation()); + + // Import template arguments. + SmallVector<TemplateArgument, 2> TemplateArgs; + if (ImportTemplateArguments(D->getTemplateArgs().data(), + D->getTemplateArgs().size(), TemplateArgs)) + return 0; + + // Try to find an existing specialization with these template arguments. + void *InsertPos = 0; + VarTemplateSpecializationDecl *D2 = VarTemplate->findSpecialization( + TemplateArgs.data(), TemplateArgs.size(), InsertPos); + if (D2) { + // We already have a variable template specialization with these template + // arguments. + + // FIXME: Check for specialization vs. instantiation errors. + + if (VarDecl *FoundDef = D2->getDefinition()) { + if (!D->isThisDeclarationADefinition() || + IsStructuralMatch(D, FoundDef)) { + // The record types structurally match, or the "from" translation + // unit only had a forward declaration anyway; call it the same + // variable. + return Importer.Imported(D, FoundDef); + } + } + } else { + + // Import the type. + QualType T = Importer.Import(D->getType()); + if (T.isNull()) + return 0; + TypeSourceInfo *TInfo = Importer.Import(D->getTypeSourceInfo()); + + // Create a new specialization. + D2 = VarTemplateSpecializationDecl::Create( + Importer.getToContext(), DC, StartLoc, IdLoc, VarTemplate, T, TInfo, + D->getStorageClass(), TemplateArgs.data(), TemplateArgs.size()); + D2->setSpecializationKind(D->getSpecializationKind()); + D2->setTemplateArgsInfo(D->getTemplateArgsInfo()); + + // Add this specialization to the class template. + VarTemplate->AddSpecialization(D2, InsertPos); + + // Import the qualifier, if any. + D2->setQualifierInfo(Importer.Import(D->getQualifierLoc())); + + // Add the specialization to this context. + D2->setLexicalDeclContext(LexicalDC); + LexicalDC->addDeclInternal(D2); + } + Importer.Imported(D, D2); + + if (D->isThisDeclarationADefinition() && ImportDefinition(D, D2)) + return 0; + + return D2; +} + //---------------------------------------------------------------------------- // Import Statements //---------------------------------------------------------------------------- @@ -4406,7 +4651,7 @@ Decl *ASTImporter::Import(Decl *FromD) { } else if (TypedefNameDecl *FromTypedef = dyn_cast<TypedefNameDecl>(FromD)) { // When we've finished transforming a typedef, see whether it was the // typedef for an anonymous tag. - for (SmallVector<TagDecl *, 4>::iterator + for (SmallVectorImpl<TagDecl *>::iterator FromTag = AnonTagsWithPendingTypedefs.begin(), FromTagEnd = AnonTagsWithPendingTypedefs.end(); FromTag != FromTagEnd; ++FromTag) { |
