Version 1.3.0.

Allowed RegExp objects to be called as functions (issue 132).

Fixed issue where global property cells would escape after detaching the global object; see http://crbug.com/16276.

Added support for stepping into setters and getters in the debugger.

Changed the debugger to avoid stopping in its own JavaScript code and in the code of built-in functions.

Fixed issue 345 by avoiding duplicate escaping labels.

Fixed ARM code generator crash in short-circuited boolean expressions and added regression tests.

Added an external allocation limit to avoid issues where small V8 objects would hold on to large amounts of external memory without causing garbage collections.

Finished more of the inline caching stubs for x64 targets. 


git-svn-id: http://v8.googlecode.com/svn/trunk@2537 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/x64/macro-assembler-x64.h b/src/x64/macro-assembler-x64.h
index f13a7ad..44a76a4 100644
--- a/src/x64/macro-assembler-x64.h
+++ b/src/x64/macro-assembler-x64.h
@@ -175,11 +175,13 @@
   void Call(Handle<Code> code_object, RelocInfo::Mode rmode);
 
   // Compare object type for heap object.
+  // Always use unsigned comparisons: above and below, not less and greater.
   // Incoming register is heap_object and outgoing register is map.
   // They may be the same register, and may be kScratchRegister.
   void CmpObjectType(Register heap_object, InstanceType type, Register map);
 
   // Compare instance type for map.
+  // Always use unsigned comparisons: above and below, not less and greater.
   void CmpInstanceType(Register map, InstanceType type);
 
   // FCmp is similar to integer cmp, but requires unsigned
@@ -212,7 +214,8 @@
 
   // Generate code for checking access rights - used for security checks
   // on access to global objects across environments. The holder register
-  // is left untouched, but the scratch register is clobbered.
+  // is left untouched, but the scratch register and kScratchRegister,
+  // which must be different, are clobbered.
   void CheckAccessGlobalProxy(Register holder_reg,
                               Register scratch,
                               Label* miss);