Handle all kind of arguments in the ToBooleanStub. While this is not very

src/ia32/full-codegen-ia32.cc

 // Copyright 2011 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 530 matching lines @@
     if (true_label_ != fall_through_) __ jmp(true_label_);
   } else {
     if (false_label_ != fall_through_) __ jmp(false_label_);
   }
 }
 
 
 void FullCodeGenerator::DoTest(Label* if_true,
                                Label* if_false,
                                Label* fall_through) {
-  // Emit the inlined tests assumed by the stub.
-  __ cmp(result_register(), isolate()->factory()->undefined_value());
-  __ j(equal, if_false);
-  __ cmp(result_register(), isolate()->factory()->true_value());
-  __ j(equal, if_true);
-  __ cmp(result_register(), isolate()->factory()->false_value());
-  __ j(equal, if_false);
-  STATIC_ASSERT(kSmiTag == 0);
-  __ test(result_register(), Operand(result_register()));
-  __ j(zero, if_false);
-  __ test(result_register(), Immediate(kSmiTagMask));
-  __ j(zero, if_true);
-
-  // Call the ToBoolean stub for all other cases.
   ToBooleanStub stub;
   __ push(result_register());
   __ CallStub(&stub);
   __ test(eax, Operand(eax));
-
   // The stub returns nonzero for true.
   Split(not_zero, if_true, if_false, fall_through);
 }
 
 
 void FullCodeGenerator::Split(Condition cc,
                               Label* if_true,
                               Label* if_false,
                               Label* fall_through) {
   if (if_false == fall_through) {
@@ skipping 3750 matching lines @@
   // And return.
   __ ret(0);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32