Experimental: more code generator changes....

src/assembler-ia32.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 156 matching lines @@
   };
 }
 
 enum Hint {
   no_hint = 0,
   not_taken = 0x2e,
   taken = 0x3e
 };
 
 
+// The result of negating a hint is as if the corresponding condition
+// were negated by NegateCondition.  That is, no_hint is mapped to
+// itself and not_taken and taken are mapped to each other.
+inline Hint NegateHint(Hint hint) {
+  return (hint == no_hint)
+      ? no_hint
+      : ((hint == not_taken) ? taken : not_taken);
+}
+
 // -----------------------------------------------------------------------------
 // Machine instruction Immediates
 
 class Immediate BASE_EMBEDDED {
  public:
   inline explicit Immediate(int x);
   inline explicit Immediate(const char* s);
   inline explicit Immediate(const ExternalReference& ext);
   inline explicit Immediate(Handle<Object> handle);
   inline explicit Immediate(Smi* value);
@@ skipping 628 matching lines @@
  private:
   Assembler* assembler_;
 #ifdef DEBUG
   int space_before_;
 #endif
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_ASSEMBLER_IA32_H_