Split HCompareGeneric in a test and a branch part.

src/x64/full-codegen-x64.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
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 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
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 //     * Redistributions in binary form must reproduce the above
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@@ skipping 4673 matching lines @@
         Split(cc, if_true, if_false, NULL);
         __ bind(&slow_case);
       }
 
       // Record position and call the compare IC.
       SetSourcePosition(expr->position());
       Handle<Code> ic = CompareIC::GetUninitialized(isolate(), op);
       CallIC(ic, RelocInfo::CODE_TARGET, expr->CompareOperationFeedbackId());
       patch_site.EmitPatchInfo();
 
-      PrepareForBailoutBeforeSplit(expr, true, if_true, if_false);
+      if (!context()->IsEffect()) PrepareForBailout(expr, TOS_REG);
       __ testq(rax, rax);
       Split(cc, if_true, if_false, fall_through);
     }
   }
 
   // Convert the result of the comparison into one expected for this
   // expression's context.
   context()->Plug(if_true, if_false);
 }
 
@@ skipping 250 matching lines @@
     ASSERT_EQ(kJnsOffset,       *(call_target_address - 2));
     return INTERRUPT;
   }
 }
 #endif  // DEBUG
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64