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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/100152] Possible 10.3 bad code generation regression
 from 10.2/9.3 on Mac OS 10.15.7 (Catalina)
Date: Wed, 21 Apr 2021 18:29:26 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100152

--- Comment #20 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Iain Sandoe from comment #17)
> (In reply to lucier from comment #16)
> > I have figured out how to build and then run the app in lldb to reliably
> > reproduce the error.

> I will try later on 10.15,

... which does reproduce the fail as you describe.

- now it's interesting that different compilers fail in different places, a=
nd
different OS versions fail with different symptoms.

have to try an find a pattern to this.=