https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96235

--- Comment #9 from suochenyao at 163 dot com <suochenyao at 163 dot com> ---
(In reply to Martin Jambor from comment #8)
> It is clearly a duplicate of PR 93385.
> 
> What was the reason to switch off DCE in the first place?  Was it just meant
> as a stress test for the compiler?
> 
> I'll try to come up with somewhat less controversial patch for the problem.
> 
> *** This bug has been marked as a duplicate of bug 93385 ***

Ummm, yes, this is just a stress test. And I get many, similar to this case.
Because there is generally no reason to switch off it.

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