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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/92860] [9/10/11/12 regression] Global flags
 affected by -O settings are clobbered by optimize attribute
Date: Fri, 02 Jul 2021 20:16:33 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D92860

--- Comment #58 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to Martin Li=C5=A1ka from comment #57)
> Can you please build options-save.c with -O0 and debug it:

Good idea, but I have run out of time on this issue.=20
Another 40 or so interesting commits have appeared
in gcc trunk.

It only seems to affect bdver2 and you've had multiple failures
to reproduce, so I am happy to put this one on hold for a week.

I plan to do another full -O3 -march=3Dnative bootstrap in a week.
I will look into this problem then.

I am happy for someone else to pick this one up. Sorry I can't do more,
but then that's the nature of volunteer work.=