https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|needs-reduction |
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2024-03-19
--- Comment #19 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
(In reply to David Binderman from comment #6)
> As expected:
>
> trunk.20210101 $ git bisect good 35b5bb475375dba4
> 6decda1a35be5764101987c210b5693a0d914e58 is the first bad commit
> commit 6decda1a35be5764101987c210b5693a0d914e58
> Author: Richard Biener <rguent...@suse.de>
> Date: Thu Oct 12 11:34:57 2023 +0200
>
> tree-optimization/111779 - Handle some BIT_FIELD_REFs in SRA
yes this seems very much the change which caused the reduced testcase even.
Since if we change the bitfields to non bitfields, things start to work and
```
if (as.au)
```
is changed to:
```
if ((BIT_FIELD_REF <as, 8, 0> & 31) != 0)
```
by fold.
If we add:
```
int t = as.au;
```
Right before that if statemtent things start to work too.
