Experimental: add a has_valid_frame predicate to the code generator...

src/virtual-frame-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 23 matching lines @@
 namespace v8 { namespace internal {
 
 #define __ masm_->
 
 // -------------------------------------------------------------------------
 // VirtualFrame implementation.
 
 VirtualFrame::SpilledScope::SpilledScope(CodeGenerator* cgen)
     : cgen_(cgen),
       previous_state_(cgen->in_spilled_code()) {
-  ASSERT(cgen->frame() != NULL);
+  ASSERT(cgen->has_valid_frame());
   cgen->frame()->SpillAll();
   cgen->set_in_spilled_code(true);
 }
 
 
 VirtualFrame::SpilledScope::~SpilledScope() {
   cgen_->set_in_spilled_code(previous_state_);
 }
 
 
@@ skipping 906 matching lines @@
       return false;
     }
   }
   return true;
 }
 #endif
 
 #undef __
 
 } }  // namespace v8::internal