Re-enable using push instructions for syncing the virtual frame....

src/ia32/register-allocator-ia32.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 24 matching lines @@
 
 // -------------------------------------------------------------------------
 // Result implementation.
 
 void Result::ToRegister() {
   ASSERT(is_valid());
   if (is_constant()) {
     Result fresh = CodeGeneratorScope::Current()->allocator()->Allocate();
     ASSERT(fresh.is_valid());
     if (CodeGeneratorScope::Current()->IsUnsafeSmi(handle())) {
-      CodeGeneratorScope::Current()->LoadUnsafeSmi(fresh.reg(), handle());
+      CodeGeneratorScope::Current()->MoveUnsafeSmi(fresh.reg(), handle());
     } else {
       CodeGeneratorScope::Current()->masm()->Set(fresh.reg(),
                                                  Immediate(handle()));
     }
     // This result becomes a copy of the fresh one.
     *this = fresh;
   }
   ASSERT(is_register());
 }
 
 
 void Result::ToRegister(Register target) {
   ASSERT(is_valid());
   if (!is_register() || !reg().is(target)) {
     Result fresh = CodeGeneratorScope::Current()->allocator()->Allocate(target);
     ASSERT(fresh.is_valid());
     if (is_register()) {
       CodeGeneratorScope::Current()->masm()->mov(fresh.reg(), reg());
     } else {
       ASSERT(is_constant());
       if (CodeGeneratorScope::Current()->IsUnsafeSmi(handle())) {
-        CodeGeneratorScope::Current()->LoadUnsafeSmi(fresh.reg(), handle());
+        CodeGeneratorScope::Current()->MoveUnsafeSmi(fresh.reg(), handle());
       } else {
         CodeGeneratorScope::Current()->masm()->Set(fresh.reg(),
                                                    Immediate(handle()));
       }
     }
     *this = fresh;
   } else if (is_register() && reg().is(target)) {
     ASSERT(CodeGeneratorScope::Current()->has_valid_frame());
     CodeGeneratorScope::Current()->frame()->Spill(target);
     ASSERT(CodeGeneratorScope::Current()->allocator()->count(target) == 1);
@@ skipping 12 matching lines @@
   // register if valid and return an invalid result.
   if (result.is_valid() && !result.reg().is_byte_register()) {
     result.Unuse();
     return Result();
   }
   return result;
 }
 
 
 } }  // namespace v8::internal