[llvm-branch-commits] [cfe-branch] r108301 - in /cfe/branches/Apple/whitney-IB/src/tools/clang: ./ include/clang/AST/ASTContext.h lib/AST/ASTContext.cpp lib/Frontend/PCHReader.cpp lib/Frontend/PCHReaderDecl.cpp lib/Frontend/PCHWriter.cpp lib/Frontend/PCHWriterDecl.cpp test/PCH/cxx-templates.cpp test/PCH/cxx-templates.h utils/TestUtils/pch-test.pl

Douglas Gregor dgregor at apple.com
Tue Jul 13 17:29:41 PDT 2010


Author: dgregor
Date: Tue Jul 13 19:29:41 2010
New Revision: 108301

URL: http://llvm.org/viewvc/llvm-project?rev=108301&view=rev
Log:
Merge Clang r107469 and r107471 to address PCH deserialization
problems with typedefs.

Removed:
    cfe/branches/Apple/whitney-IB/src/tools/clang/test/PCH/cxx-templates.cpp
    cfe/branches/Apple/whitney-IB/src/tools/clang/test/PCH/cxx-templates.h
Modified:
    cfe/branches/Apple/whitney-IB/src/tools/clang/   (props changed)
    cfe/branches/Apple/whitney-IB/src/tools/clang/include/clang/AST/ASTContext.h
    cfe/branches/Apple/whitney-IB/src/tools/clang/lib/AST/ASTContext.cpp
    cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHReader.cpp
    cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHReaderDecl.cpp
    cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHWriter.cpp
    cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHWriterDecl.cpp
    cfe/branches/Apple/whitney-IB/src/tools/clang/utils/TestUtils/pch-test.pl

Propchange: cfe/branches/Apple/whitney-IB/src/tools/clang/
------------------------------------------------------------------------------
    svn:mergeinfo = /cfe/trunk:107469,107471,107598

Modified: cfe/branches/Apple/whitney-IB/src/tools/clang/include/clang/AST/ASTContext.h
URL: http://llvm.org/viewvc/llvm-project/cfe/branches/Apple/whitney-IB/src/tools/clang/include/clang/AST/ASTContext.h?rev=108301&r1=108300&r2=108301&view=diff
==============================================================================
--- cfe/branches/Apple/whitney-IB/src/tools/clang/include/clang/AST/ASTContext.h (original)
+++ cfe/branches/Apple/whitney-IB/src/tools/clang/include/clang/AST/ASTContext.h Tue Jul 13 19:29:41 2010
@@ -614,7 +614,7 @@
 
   /// getTypedefType - Return the unique reference to the type for the
   /// specified typename decl.
-  QualType getTypedefType(const TypedefDecl *Decl);
+  QualType getTypedefType(const TypedefDecl *Decl, QualType Canon = QualType());
 
   QualType getInjectedClassNameType(CXXRecordDecl *Decl, QualType TST);
 
@@ -630,6 +630,10 @@
                                          unsigned NumArgs,
                                          QualType Canon = QualType());
 
+  QualType getCanonicalTemplateSpecializationType(TemplateName T,
+                                                  const TemplateArgument *Args,
+                                                  unsigned NumArgs);
+
   QualType getTemplateSpecializationType(TemplateName T,
                                          const TemplateArgumentListInfo &Args,
                                          QualType Canon = QualType());

Modified: cfe/branches/Apple/whitney-IB/src/tools/clang/lib/AST/ASTContext.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/branches/Apple/whitney-IB/src/tools/clang/lib/AST/ASTContext.cpp?rev=108301&r1=108300&r2=108301&view=diff
==============================================================================
--- cfe/branches/Apple/whitney-IB/src/tools/clang/lib/AST/ASTContext.cpp (original)
+++ cfe/branches/Apple/whitney-IB/src/tools/clang/lib/AST/ASTContext.cpp Tue Jul 13 19:29:41 2010
@@ -1787,10 +1787,12 @@
 
 /// getTypedefType - Return the unique reference to the type for the
 /// specified typename decl.
-QualType ASTContext::getTypedefType(const TypedefDecl *Decl) {
+QualType
+ASTContext::getTypedefType(const TypedefDecl *Decl, QualType Canonical) {
   if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0);
 
-  QualType Canonical = getCanonicalType(Decl->getUnderlyingType());
+  if (Canonical.isNull())
+    Canonical = getCanonicalType(Decl->getUnderlyingType());
   Decl->TypeForDecl = new(*this, TypeAlignment)
     TypedefType(Type::Typedef, Decl, Canonical);
   Types.push_back(Decl->TypeForDecl);
@@ -1894,41 +1896,8 @@
                                           QualType Canon) {
   if (!Canon.isNull())
     Canon = getCanonicalType(Canon);
-  else {
-    // Build the canonical template specialization type.
-    TemplateName CanonTemplate = getCanonicalTemplateName(Template);
-    llvm::SmallVector<TemplateArgument, 4> CanonArgs;
-    CanonArgs.reserve(NumArgs);
-    for (unsigned I = 0; I != NumArgs; ++I)
-      CanonArgs.push_back(getCanonicalTemplateArgument(Args[I]));
-
-    // Determine whether this canonical template specialization type already
-    // exists.
-    llvm::FoldingSetNodeID ID;
-    TemplateSpecializationType::Profile(ID, CanonTemplate,
-                                        CanonArgs.data(), NumArgs, *this);
-
-    void *InsertPos = 0;
-    TemplateSpecializationType *Spec
-      = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos);
-
-    if (!Spec) {
-      // Allocate a new canonical template specialization type.
-      void *Mem = Allocate((sizeof(TemplateSpecializationType) +
-                            sizeof(TemplateArgument) * NumArgs),
-                           TypeAlignment);
-      Spec = new (Mem) TemplateSpecializationType(CanonTemplate,
-                                                  CanonArgs.data(), NumArgs,
-                                                  Canon);
-      Types.push_back(Spec);
-      TemplateSpecializationTypes.InsertNode(Spec, InsertPos);
-    }
-
-    if (Canon.isNull())
-      Canon = QualType(Spec, 0);
-    assert(Canon->isDependentType() &&
-           "Non-dependent template-id type must have a canonical type");
-  }
+  else
+    Canon = getCanonicalTemplateSpecializationType(Template, Args, NumArgs);
 
   // Allocate the (non-canonical) template specialization type, but don't
   // try to unique it: these types typically have location information that
@@ -1946,6 +1915,44 @@
 }
 
 QualType
+ASTContext::getCanonicalTemplateSpecializationType(TemplateName Template,
+                                                   const TemplateArgument *Args,
+                                                   unsigned NumArgs) {
+  // Build the canonical template specialization type.
+  TemplateName CanonTemplate = getCanonicalTemplateName(Template);
+  llvm::SmallVector<TemplateArgument, 4> CanonArgs;
+  CanonArgs.reserve(NumArgs);
+  for (unsigned I = 0; I != NumArgs; ++I)
+    CanonArgs.push_back(getCanonicalTemplateArgument(Args[I]));
+
+  // Determine whether this canonical template specialization type already
+  // exists.
+  llvm::FoldingSetNodeID ID;
+  TemplateSpecializationType::Profile(ID, CanonTemplate,
+                                      CanonArgs.data(), NumArgs, *this);
+
+  void *InsertPos = 0;
+  TemplateSpecializationType *Spec
+    = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos);
+
+  if (!Spec) {
+    // Allocate a new canonical template specialization type.
+    void *Mem = Allocate((sizeof(TemplateSpecializationType) +
+                          sizeof(TemplateArgument) * NumArgs),
+                         TypeAlignment);
+    Spec = new (Mem) TemplateSpecializationType(CanonTemplate,
+                                                CanonArgs.data(), NumArgs,
+                                                QualType());
+    Types.push_back(Spec);
+    TemplateSpecializationTypes.InsertNode(Spec, InsertPos);
+  }
+
+  assert(Spec->isDependentType() &&
+         "Non-dependent template-id type must have a canonical type");
+  return QualType(Spec, 0);
+}
+
+QualType
 ASTContext::getElaboratedType(ElaboratedTypeKeyword Keyword,
                               NestedNameSpecifier *NNS,
                               QualType NamedType) {

Modified: cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHReader.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHReader.cpp?rev=108301&r1=108300&r2=108301&view=diff
==============================================================================
--- cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHReader.cpp (original)
+++ cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHReader.cpp Tue Jul 13 19:29:41 2010
@@ -2133,12 +2133,15 @@
     return Context->getTypeDeclType(
              cast<UnresolvedUsingTypenameDecl>(GetDecl(Record[0])));
 
-  case pch::TYPE_TYPEDEF:
-    if (Record.size() != 1) {
+  case pch::TYPE_TYPEDEF: {
+    if (Record.size() != 2) {
       Error("incorrect encoding of typedef type");
       return QualType();
     }
-    return Context->getTypeDeclType(cast<TypedefDecl>(GetDecl(Record[0])));
+    TypedefDecl *Decl = cast<TypedefDecl>(GetDecl(Record[0]));
+    QualType Canonical = GetType(Record[1]);
+    return Context->getTypedefType(Decl, Canonical);
+  }
 
   case pch::TYPE_TYPEOF_EXPR:
     return Context->getTypeOfExprType(ReadTypeExpr());
@@ -2251,8 +2254,12 @@
     llvm::SmallVector<TemplateArgument, 8> Args;
     ReadTemplateArgumentList(Args, Record, Idx);
     QualType Canon = GetType(Record[Idx++]);
-    return Context->getTemplateSpecializationType(Name, Args.data(),Args.size(),
-                                                  Canon);
+    if (Canon.isNull())
+      return Context->getCanonicalTemplateSpecializationType(Name, Args.data(),
+                                                             Args.size());
+    else
+      return Context->getTemplateSpecializationType(Name, Args.data(),
+                                                    Args.size(), Canon);
   }
   }
   // Suppress a GCC warning

Modified: cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHReaderDecl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHReaderDecl.cpp?rev=108301&r1=108300&r2=108301&view=diff
==============================================================================
--- cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHReaderDecl.cpp (original)
+++ cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHReaderDecl.cpp Tue Jul 13 19:29:41 2010
@@ -32,14 +32,17 @@
     PCHReader &Reader;
     const PCHReader::RecordData &Record;
     unsigned &Idx;
+    pch::TypeID TypeIDForTypeDecl;
 
   public:
     PCHDeclReader(PCHReader &Reader, const PCHReader::RecordData &Record,
                   unsigned &Idx)
-      : Reader(Reader), Record(Record), Idx(Idx) { }
+      : Reader(Reader), Record(Record), Idx(Idx), TypeIDForTypeDecl(0) { }
 
     CXXBaseSpecifier *ReadCXXBaseSpecifier();
 
+    void Visit(Decl *D);
+
     void VisitDecl(Decl *D);
     void VisitTranslationUnitDecl(TranslationUnitDecl *TU);
     void VisitNamedDecl(NamedDecl *ND);
@@ -106,6 +109,14 @@
   };
 }
 
+void PCHDeclReader::Visit(Decl *D) {
+  DeclVisitor<PCHDeclReader, void>::Visit(D);
+
+  // if we have a fully initialized TypeDecl, we can safely read its type now.
+  if (TypeDecl *TD = dyn_cast<TypeDecl>(D))
+    TD->setTypeForDecl(Reader.GetType(TypeIDForTypeDecl).getTypePtr());
+}
+
 void PCHDeclReader::VisitDecl(Decl *D) {
   D->setDeclContext(cast_or_null<DeclContext>(Reader.GetDecl(Record[Idx++])));
   D->setLexicalDeclContext(
@@ -133,17 +144,13 @@
 
 void PCHDeclReader::VisitTypeDecl(TypeDecl *TD) {
   VisitNamedDecl(TD);
-  TD->setTypeForDecl(Reader.GetType(Record[Idx++]).getTypePtr());
+  // Delay type reading until after we have fully initialized the decl.
+  TypeIDForTypeDecl = Record[Idx++];
 }
 
 void PCHDeclReader::VisitTypedefDecl(TypedefDecl *TD) {
-  // Note that we cannot use VisitTypeDecl here, because we need to
-  // set the underlying type of the typedef *before* we try to read
-  // the type associated with the TypedefDecl.
-  VisitNamedDecl(TD);
-  uint64_t TypeData = Record[Idx++];
+  VisitTypeDecl(TD);
   TD->setTypeSourceInfo(Reader.GetTypeSourceInfo(Record, Idx));
-  TD->setTypeForDecl(Reader.GetType(TypeData).getTypePtr());
 }
 
 void PCHDeclReader::VisitTagDecl(TagDecl *TD) {

Modified: cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHWriter.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHWriter.cpp?rev=108301&r1=108300&r2=108301&view=diff
==============================================================================
--- cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHWriter.cpp (original)
+++ cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHWriter.cpp Tue Jul 13 19:29:41 2010
@@ -173,6 +173,8 @@
 
 void PCHTypeWriter::VisitTypedefType(const TypedefType *T) {
   Writer.AddDeclRef(T->getDecl(), Record);
+  assert(!T->isCanonicalUnqualified() && "Invalid typedef ?");
+  Writer.AddTypeRef(T->getCanonicalTypeInternal(), Record);
   Code = pch::TYPE_TYPEDEF;
 }
 
@@ -223,8 +225,9 @@
   for (TemplateSpecializationType::iterator ArgI = T->begin(), ArgE = T->end();
          ArgI != ArgE; ++ArgI)
     Writer.AddTemplateArgument(*ArgI, Record);
-  QualType Canon = T->getCanonicalTypeInternal();
-  Writer.AddTypeRef(Canon.getTypePtr() != T ? Canon : QualType(), Record);
+  Writer.AddTypeRef(T->isCanonicalUnqualified() ? QualType()
+                                                : T->getCanonicalTypeInternal(),
+                    Record);
   Code = pch::TYPE_TEMPLATE_SPECIALIZATION;
 }
 

Modified: cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHWriterDecl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHWriterDecl.cpp?rev=108301&r1=108300&r2=108301&view=diff
==============================================================================
--- cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHWriterDecl.cpp (original)
+++ cfe/branches/Apple/whitney-IB/src/tools/clang/lib/Frontend/PCHWriterDecl.cpp Tue Jul 13 19:29:41 2010
@@ -136,14 +136,7 @@
 
 void PCHDeclWriter::VisitTypeDecl(TypeDecl *D) {
   VisitNamedDecl(D);
-  if (isa<CXXRecordDecl>(D)) {
-    // FIXME: Hack. To read a templated CXXRecordDecl from PCH, we need an
-    // initialized CXXRecordDecl before creating an InjectedClassNameType.
-    // Delay emitting/reading CXXRecordDecl's TypeForDecl until when we handle
-    // CXXRecordDecl emitting/initialization.
-    Writer.AddTypeRef(QualType(), Record);
-  } else
-    Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
+  Writer.AddTypeRef(QualType(D->getTypeForDecl(), 0), Record);
 }
 
 void PCHDeclWriter::VisitTypedefDecl(TypedefDecl *D) {

Removed: cfe/branches/Apple/whitney-IB/src/tools/clang/test/PCH/cxx-templates.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/branches/Apple/whitney-IB/src/tools/clang/test/PCH/cxx-templates.cpp?rev=108300&view=auto
==============================================================================
--- cfe/branches/Apple/whitney-IB/src/tools/clang/test/PCH/cxx-templates.cpp (original)
+++ cfe/branches/Apple/whitney-IB/src/tools/clang/test/PCH/cxx-templates.cpp (removed)
@@ -1,25 +0,0 @@
-// Test this without pch.
-// RUN: %clang_cc1 -include %S/cxx-templates.h -verify %s -ast-dump
-
-// Test with pch.
-// RUN: %clang_cc1 -x c++-header -emit-pch -o %t %S/cxx-templates.h
-// RUN: %clang_cc1 -include-pch %t -verify %s -ast-dump 
-
-struct A {
-  typedef int type;
-  static void my_f();
-  template <typename T>
-  static T my_templf(T x) { return x; }
-};
-
-void test() {
-  int x = templ_f<int, 5>(3);
-  
-  S<char, float>::templ();
-  S<int, char>::partial();
-  S<int, float>::explicit_special();
-  
-  Dep<A>::Ty ty;
-  Dep<A> a;
-  a.f();
-}

Removed: cfe/branches/Apple/whitney-IB/src/tools/clang/test/PCH/cxx-templates.h
URL: http://llvm.org/viewvc/llvm-project/cfe/branches/Apple/whitney-IB/src/tools/clang/test/PCH/cxx-templates.h?rev=108300&view=auto
==============================================================================
--- cfe/branches/Apple/whitney-IB/src/tools/clang/test/PCH/cxx-templates.h (original)
+++ cfe/branches/Apple/whitney-IB/src/tools/clang/test/PCH/cxx-templates.h (removed)
@@ -1,56 +0,0 @@
-// Header for PCH test cxx-templates.cpp
-
-template <typename T1, typename T2>
-struct S {
-  static void templ();
-};
-
-template <typename T>
-struct S<int, T> {
-    static void partial();
-};
-
-template <>
-struct S<int, float> {
-    static void explicit_special();
-};
-
-template <int x>
-int tmpl_f2() { return x; }
-
-template <typename T, int y>
-T templ_f(T x) {
-  int z = templ_f<int, 5>(3);
-  z = tmpl_f2<y+2>();
-  return x+y;
-}
-
-void govl(int);
-void govl(char);
-
-template <typename T>
-struct Unresolv {
-  void f() {
-    govl(T());
-  }
-};
-
-template <typename T>
-struct Dep {
-  typedef typename T::type Ty;
-  void f() {
-    Ty x = Ty();
-    T::my_f();
-    int y = T::template my_templf<int>(0);
-    ovl(y);
-  }
-  
-  void ovl(int);
-  void ovl(float);
-};
-
-template<typename T, typename A1>
-inline T make_a(const A1& a1) {
-  T::depend_declref();
-  return T(a1);
-}

Modified: cfe/branches/Apple/whitney-IB/src/tools/clang/utils/TestUtils/pch-test.pl
URL: http://llvm.org/viewvc/llvm-project/cfe/branches/Apple/whitney-IB/src/tools/clang/utils/TestUtils/pch-test.pl?rev=108301&r1=108300&r2=108301&view=diff
==============================================================================
--- cfe/branches/Apple/whitney-IB/src/tools/clang/utils/TestUtils/pch-test.pl (original)
+++ cfe/branches/Apple/whitney-IB/src/tools/clang/utils/TestUtils/pch-test.pl Tue Jul 13 19:29:41 2010
@@ -17,12 +17,12 @@
   @files = `ls test/*/*.$suffix`;
   foreach $file (@files) {
     chomp($file);
-    my $code = system("clang- -fsyntax-only -x $language $file > /dev/null 2>&1");
+    my $code = system("/Xcode4/usr/bin/clang -fsyntax-only -x $language $file > /dev/null 2>&1");
     if ($code == 0) {
       print(".");
-      $code = system("clang -cc1 -emit-pch -x $language -o $file.pch $file > /dev/null 2>&1");
+      $code = system("/Xcode4/usr/bin/clang -cc1 -emit-pch -x $language -o $file.pch $file > /dev/null 2>&1");
       if ($code == 0) {
-        $code = system("clang -cc1 -include-pch $file.pch -x $language -ast-dump /dev/null > /dev/null 2>&1");
+        $code = system("/Xcode4/usr/bin/clang -cc1 -include-pch $file.pch -x $language -ast-dump /dev/null > /dev/null 2>&1");
         if ($code == 0) {
           $passed++;
         } elsif (($code & 0xFF) == SIGINT) {





More information about the llvm-branch-commits mailing list