https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93941
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2020-02-26
CC|rguenther at suse dot de |jakub at gcc dot
gnu.org,
| |rguenth at gcc dot gnu.org
Version|unknown |10.0
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. Bisection is likely wrong (-O2 doesn't do vectorization) and rather
it's probably related to
# DEBUG i => (int) ((ivtmp.22_29 - (unsigned long) &b) /[ex] 10) + 1
somehow breaking down leaving us with some other choice for i from
# DEBUG i => 0
or
# DEBUG i => (int) ((ivtmp.22_29 - (unsigned long) &b) /[ex] 10)
rather than dropping to a debug reset. GCC 9 had <optimized out> here
since we didn't have the above "fancy" debug expression for i.
