https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107009
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Priority|P3 |P1
CC| |rguenth at gcc dot gnu.org
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
# RANGE [irange] size_t [1, +INF]
size_t n_12(D) = n;
the nonzero bits info on 'n' is gone. DOM2 used to produce that and
CCP3 elides the __builtin_unreachable () but if DOM2 is disabled that
doesn't produce the nonzero bits.
DOM2 from trunk no longer sets nonzero bits. CCP doesn't do any
conditional non-zero bits (or constant equivalence) propagation.
