https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121767
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Ever confirmed|0 |1
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
Last reconfirmed| |2025-09-03
Target Milestone|--- |16.0
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
t.ii:257:34: note: Analyze phi: D__lsm.29_22 = PHI <_19(8), D__lsm.29_20(4)>
t.ii:257:34: note: reduction path: _19 D__lsm.29_22
t.ii:257:34: note: reduction: detected reduction
t.ii:257:34: note: Detected reduction.
...
t.ii:257:34: note: vect_recog_mod_var_pattern: detected: _19 = D__lsm.29_22 %
_9;
t.ii:257:34: note: modvar pattern recognized: patt_34 = D__lsm.29_22 -
patt_17;
t.ii:257:34: note: extra pattern stmt: patt_16 = D__lsm.29_22 / _9;
t.ii:257:34: note: extra pattern stmt: patt_17 = patt_16 * _9;
another case of patterns breaking reduction index.