Switch attributes to be allocated from the declcontext bump pointer just like

decls.  This reduces the number of calls to malloc on cocoa.h with pth and
-disable-free from 15958 to 12444 times (down ~3500).



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66023 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 12 insertions, 5 deletions

diff --git a/include/clang/AST/Attr.h b/include/clang/AST/Attr.h
index 89fe0f0416..0d6ed01e51 100644
--- a/include/clang/AST/Attr.h
+++ b/include/clang/AST/Attr.h
@@ -69,16 +69,23 @@ private:
   bool Inherited : 1;
 
 protected:
+  void* operator new(size_t bytes) throw() {
+    assert(0 && "Attrs cannot be allocated with regular 'new'.");
+    return 0;
+  }
+  void operator delete(void* data) throw() {
+    assert(0 && "Attrs cannot be released with regular 'delete'.");
+  }
+  
+protected:
   Attr(Kind AK) : Next(0), AttrKind(AK), Inherited(false) {}
   virtual ~Attr() {
-    delete Next;
+    assert(Next == 0 && "Destroy didn't work");
   }
 public:
   
-  void Destroy(ASTContext &C) {
-    delete this;
-  }
-
+  void Destroy(ASTContext &C);
+  
   /// \brief Whether this attribute should be merged to new
   /// declarations.
   virtual bool isMerged() const { return true; }