Make static counters in ASTContext non-static.

Summary:
Fixes a data race and makes it possible to run clang-based tools in
multithreaded environment with TSan.

Reviewers: ilya-biryukov, riccibruno

Reviewed By: riccibruno

Subscribers: riccibruno, jfb, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D58612

llvm-svn: 354795

3 files changed, 24 insertions, 37 deletions

diff --git a/clang/include/clang/AST/ASTContext.h b/clang/include/clang/AST/ASTContext.h
index b8944a05227..4e3280b1d46 100644
--- a/clang/include/clang/AST/ASTContext.h
+++ b/clang/include/clang/AST/ASTContext.h
@@ -2809,46 +2809,46 @@ public:
   //===--------------------------------------------------------------------===//
 
   /// The number of implicitly-declared default constructors.
-  static unsigned NumImplicitDefaultConstructors;
+  unsigned NumImplicitDefaultConstructors;
 
   /// The number of implicitly-declared default constructors for
   /// which declarations were built.
-  static unsigned NumImplicitDefaultConstructorsDeclared;
+  unsigned NumImplicitDefaultConstructorsDeclared;
 
   /// The number of implicitly-declared copy constructors.
-  static unsigned NumImplicitCopyConstructors;
+  unsigned NumImplicitCopyConstructors;
 
   /// The number of implicitly-declared copy constructors for
   /// which declarations were built.
-  static unsigned NumImplicitCopyConstructorsDeclared;
+  unsigned NumImplicitCopyConstructorsDeclared;
 
   /// The number of implicitly-declared move constructors.
-  static unsigned NumImplicitMoveConstructors;
+  unsigned NumImplicitMoveConstructors;
 
   /// The number of implicitly-declared move constructors for
   /// which declarations were built.
-  static unsigned NumImplicitMoveConstructorsDeclared;
+  unsigned NumImplicitMoveConstructorsDeclared;
 
   /// The number of implicitly-declared copy assignment operators.
-  static unsigned NumImplicitCopyAssignmentOperators;
+  unsigned NumImplicitCopyAssignmentOperators;
 
   /// The number of implicitly-declared copy assignment operators for
   /// which declarations were built.
-  static unsigned NumImplicitCopyAssignmentOperatorsDeclared;
+  unsigned NumImplicitCopyAssignmentOperatorsDeclared;
 
   /// The number of implicitly-declared move assignment operators.
-  static unsigned NumImplicitMoveAssignmentOperators;
+  unsigned NumImplicitMoveAssignmentOperators;
 
   /// The number of implicitly-declared move assignment operators for
   /// which declarations were built.
-  static unsigned NumImplicitMoveAssignmentOperatorsDeclared;
+  unsigned NumImplicitMoveAssignmentOperatorsDeclared;
 
   /// The number of implicitly-declared destructors.
-  static unsigned NumImplicitDestructors;
+  unsigned NumImplicitDestructors;
 
   /// The number of implicitly-declared destructors for which
   /// declarations were built.
-  static unsigned NumImplicitDestructorsDeclared;
+  unsigned NumImplicitDestructorsDeclared;
 
 public:
   /// Initialize built-in types.
diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
index 46cdd9a93f6..f968c6260e8 100644
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -94,19 +94,6 @@
 
 using namespace clang;
 
-unsigned ASTContext::NumImplicitDefaultConstructors;
-unsigned ASTContext::NumImplicitDefaultConstructorsDeclared;
-unsigned ASTContext::NumImplicitCopyConstructors;
-unsigned ASTContext::NumImplicitCopyConstructorsDeclared;
-unsigned ASTContext::NumImplicitMoveConstructors;
-unsigned ASTContext::NumImplicitMoveConstructorsDeclared;
-unsigned ASTContext::NumImplicitCopyAssignmentOperators;
-unsigned ASTContext::NumImplicitCopyAssignmentOperatorsDeclared;
-unsigned ASTContext::NumImplicitMoveAssignmentOperators;
-unsigned ASTContext::NumImplicitMoveAssignmentOperatorsDeclared;
-unsigned ASTContext::NumImplicitDestructors;
-unsigned ASTContext::NumImplicitDestructorsDeclared;
-
 enum FloatingRank {
   Float16Rank, HalfRank, FloatRank, DoubleRank, LongDoubleRank, Float128Rank
 };
diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index 7457d1cb022..55e176f4c7d 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -7971,14 +7971,14 @@ void Sema::ActOnFinishCXXMemberSpecification(
 /// definition of the class is complete.
 void Sema::AddImplicitlyDeclaredMembersToClass(CXXRecordDecl *ClassDecl) {
   if (ClassDecl->needsImplicitDefaultConstructor()) {
-    ++ASTContext::NumImplicitDefaultConstructors;
+    ++getASTContext().NumImplicitDefaultConstructors;
 
     if (ClassDecl->hasInheritedConstructor())
       DeclareImplicitDefaultConstructor(ClassDecl);
   }
 
   if (ClassDecl->needsImplicitCopyConstructor()) {
-    ++ASTContext::NumImplicitCopyConstructors;
+    ++getASTContext().NumImplicitCopyConstructors;
 
     // If the properties or semantics of the copy constructor couldn't be
     // determined while the class was being declared, force a declaration
@@ -8000,7 +8000,7 @@ void Sema::AddImplicitlyDeclaredMembersToClass(CXXRecordDecl *ClassDecl) {
   }
 
   if (getLangOpts().CPlusPlus11 && ClassDecl->needsImplicitMoveConstructor()) {
-    ++ASTContext::NumImplicitMoveConstructors;
+    ++getASTContext().NumImplicitMoveConstructors;
 
     if (ClassDecl->needsOverloadResolutionForMoveConstructor() ||
         ClassDecl->hasInheritedConstructor())
@@ -8008,7 +8008,7 @@ void Sema::AddImplicitlyDeclaredMembersToClass(CXXRecordDecl *ClassDecl) {
   }
 
   if (ClassDecl->needsImplicitCopyAssignment()) {
-    ++ASTContext::NumImplicitCopyAssignmentOperators;
+    ++getASTContext().NumImplicitCopyAssignmentOperators;
 
     // If we have a dynamic class, then the copy assignment operator may be
     // virtual, so we have to declare it immediately. This ensures that, e.g.,
@@ -8021,7 +8021,7 @@ void Sema::AddImplicitlyDeclaredMembersToClass(CXXRecordDecl *ClassDecl) {
   }
 
   if (getLangOpts().CPlusPlus11 && ClassDecl->needsImplicitMoveAssignment()) {
-    ++ASTContext::NumImplicitMoveAssignmentOperators;
+    ++getASTContext().NumImplicitMoveAssignmentOperators;
 
     // Likewise for the move assignment operator.
     if (ClassDecl->isDynamicClass() ||
@@ -8031,7 +8031,7 @@ void Sema::AddImplicitlyDeclaredMembersToClass(CXXRecordDecl *ClassDecl) {
   }
 
   if (ClassDecl->needsImplicitDestructor()) {
-    ++ASTContext::NumImplicitDestructors;
+    ++getASTContext().NumImplicitDestructors;
 
     // If we have a dynamic class, then the destructor may be virtual, so we
     // have to declare the destructor immediately. This ensures that, e.g., it
@@ -11013,7 +11013,7 @@ CXXConstructorDecl *Sema::DeclareImplicitDefaultConstructor(
   DefaultCon->setTrivial(ClassDecl->hasTrivialDefaultConstructor());
 
   // Note that we have declared this constructor.
-  ++ASTContext::NumImplicitDefaultConstructorsDeclared;
+  ++getASTContext().NumImplicitDefaultConstructorsDeclared;
 
   Scope *S = getScopeForContext(ClassDecl);
   CheckImplicitSpecialMemberDeclaration(S, DefaultCon);
@@ -11286,7 +11286,7 @@ CXXDestructorDecl *Sema::DeclareImplicitDestructor(CXXRecordDecl *ClassDecl) {
                                 ClassDecl->hasTrivialDestructorForCall());
 
   // Note that we have declared this destructor.
-  ++ASTContext::NumImplicitDestructorsDeclared;
+  ++getASTContext().NumImplicitDestructorsDeclared;
 
   Scope *S = getScopeForContext(ClassDecl);
   CheckImplicitSpecialMemberDeclaration(S, Destructor);
@@ -11896,7 +11896,7 @@ CXXMethodDecl *Sema::DeclareImplicitCopyAssignment(CXXRecordDecl *ClassDecl) {
       : ClassDecl->hasTrivialCopyAssignment());
 
   // Note that we have added this copy-assignment operator.
-  ++ASTContext::NumImplicitCopyAssignmentOperatorsDeclared;
+  ++getASTContext().NumImplicitCopyAssignmentOperatorsDeclared;
 
   Scope *S = getScopeForContext(ClassDecl);
   CheckImplicitSpecialMemberDeclaration(S, CopyAssignment);
@@ -12219,7 +12219,7 @@ CXXMethodDecl *Sema::DeclareImplicitMoveAssignment(CXXRecordDecl *ClassDecl) {
       : ClassDecl->hasTrivialMoveAssignment());
 
   // Note that we have added this copy-assignment operator.
-  ++ASTContext::NumImplicitMoveAssignmentOperatorsDeclared;
+  ++getASTContext().NumImplicitMoveAssignmentOperatorsDeclared;
 
   Scope *S = getScopeForContext(ClassDecl);
   CheckImplicitSpecialMemberDeclaration(S, MoveAssignment);
@@ -12602,7 +12602,7 @@ CXXConstructorDecl *Sema::DeclareImplicitCopyConstructor(
            : ClassDecl->hasTrivialCopyConstructorForCall()));
 
   // Note that we have declared this constructor.
-  ++ASTContext::NumImplicitCopyConstructorsDeclared;
+  ++getASTContext().NumImplicitCopyConstructorsDeclared;
 
   Scope *S = getScopeForContext(ClassDecl);
   CheckImplicitSpecialMemberDeclaration(S, CopyConstructor);
@@ -12732,7 +12732,7 @@ CXXConstructorDecl *Sema::DeclareImplicitMoveConstructor(
            : ClassDecl->hasTrivialMoveConstructorForCall()));
 
   // Note that we have declared this constructor.
-  ++ASTContext::NumImplicitMoveConstructorsDeclared;
+  ++getASTContext().NumImplicitMoveConstructorsDeclared;
 
   Scope *S = getScopeForContext(ClassDecl);
   CheckImplicitSpecialMemberDeclaration(S, MoveConstructor);