https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123038
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
t.c:2:21: note: vec_recog_ctz_ffs_pattern: detected: b_6 = __builtin_ffs
(b_10);
t.c:2:21: note: created pattern stmt: patt_13 = patt_14 ? patt_9 : 0;
t.c:2:21: note: ctz_ffs pattern recognized: patt_13 = patt_14 ? patt_9 : 0;
t.c:2:21: note: extra pattern stmt: patt_8 = .CTZ (b_10, 32);
t.c:2:21: note: extra pattern stmt: patt_9 = patt_8 + 1;
t.c:2:21: note: extra pattern stmt: patt_14 = b_10 != 0;
this has b_10 used twice, so it's a pattern that needs to be guarded to not
apply to reductions.
I'll deal with this.
