https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101193
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |pinskia at gcc dot gnu.org
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #1)
> Confirmed, we have quite some similar issues. It's not related to bitfields
> but to fact that the following expression is split among multiple lines:
>
> return in.bfval.f0 | (in.bfval.f1 << 8) | (in.bfval.f2 << 16) | (in.bfval.f3
> << 24);
Actually I suspect it is more related to bitfields and spread across multiple
lines. There is an optimization done early (before GCOV) in fold-const which
combines the above to use and afterwards.
I have a few set of patches which allows to get rid of most of the optimization
in fold-const dealing with this but not all; This is something which I am going
to work towards for GCC 12 but after the current phiopt work.
