https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71818
alahay01 at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from alahay01 at gcc dot gnu.org ---
Fixed.
Allowing a non-invariant step to be incremented using vect_can_advance_ivs_p
was causing:
1) Incorrect vectorisation of the IV
and
2) Loop closed SSA to be broken (the step was being used outside the loop
directly instead of via a PHI).
The ICE was caused because vectorisable_live_operation was expecting the loop
to be in loop closed SSA.
