Simple toplevel code generator support for short-circuited boolean OR...

src/x64/codegen-x64.h

 // Copyright 2009 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 617 matching lines @@
 
 // -------------------------------------------------------------------------
 // Code stubs
 //
 // These independent code objects are created once, and used multiple
 // times by generated code to perform common tasks, often the slow
 // case of a JavaScript operation.  They are all subclasses of CodeStub,
 // which is declared in code-stubs.h.
 
 
+class ToBooleanStub: public CodeStub {
+ public:
+  ToBooleanStub() { }
+
+  void Generate(MacroAssembler* masm);
+
+ private:
+  Major MajorKey() { return ToBoolean; }
+  int MinorKey() { return 0; }
+};
+
+
 // Flag that indicates whether or not the code that handles smi arguments
 // should be placed in the stub, inlined, or omitted entirely.
 enum GenericBinaryFlags {
   SMI_CODE_IN_STUB,
   SMI_CODE_INLINED
 };
 
 
 class GenericBinaryOpStub: public CodeStub {
  public:
@@ skipping 38 matching lines @@
         | FlagBits::encode(flags_)
         | SSE3Bits::encode(use_sse3_);
   }
   void Generate(MacroAssembler* masm);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_X64_CODEGEN_X64_H_