Initial support for count-based profiling

src/full-codegen.h

Index: src/full-codegen.h
diff --git a/src/full-codegen.h b/src/full-codegen.h
index f9b7c3842a028f0e2fe84ef808b2a2cd34dec2d3..f17d383780d02718bfe8986f2fe7305a8f758149 100644
--- a/src/full-codegen.h
+++ b/src/full-codegen.h
@@ -424,7 +424,7 @@ class FullCodeGenerator: public AstVisitor {
 
   // Platform-specific code for checking the stack limit at the back edge of
   // a loop.
-  void EmitStackCheck(IterationStatement* stmt);
+  void EmitStackCheck(IterationStatement* stmt, Label* back_edge_target);

[Erik Corry, 2012/02/10 13:01:42]

Please add a comment to explain what this label is used for.

[Jakob Kummerow, 2012/02/10 13:59:20]

Done.

   // Record the OSR AST id corresponding to a stack check in the code.
   void RecordStackCheck(unsigned osr_ast_id);
   // Emit a table of stack check ids and pcs into the code stream.  Return
@@ -774,6 +774,7 @@ class FullCodeGenerator: public AstVisitor {
   ZoneList<BailoutEntry> stack_checks_;
   ZoneList<TypeFeedbackCellEntry> type_feedback_cells_;
   Handle<FixedArray> handler_table_;
+  Handle<JSGlobalPropertyCell> profiling_counter_;
 
   friend class NestedStatement;