https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124453
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Keywords| |missed-optimization
Blocks| |19466
Component|target |middle-end
Status|UNCONFIRMED |NEW
Last reconfirmed| |2026-03-11
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
#ifdef dd
auto t = val.b;
if(t == 0)
#else
if (val.b == 0)
#endif
The problem is too early `optimizing` of val.b == 0.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19466
[Bug 19466] [meta-bug] bit-fields are non optimal
