I believe so, if 'a' resolves to a getter. To optimize, it would have to prove that 'a' is a locally bound variable with no escapes or else no functions are cal

I believe so, if 'a' resolves to a getter. To optimize, it would have to prove that 'a' is a locally bound variable with no escapes or else no functions are called in the comparison. See https://v8project.blogspot.com/2017/09/disabling-escape-analysis.html https://v8project.blogspot.com/2017/09/disabling-escape-anal... for a related bug.