[Bug c/89440] [9 Regression] ICE in vect_create_epilog_for_reduction, at tree-vect-loop.c:5502

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89440

David Malcolm <dmalcolm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2019-02-21
                 CC|                            |dmalcolm at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Confirmed; it's failing this assertion:

5497                  /* FORNOW. Currently not supporting the case that an
inner-loop
5498                     reduction is not used in the outer-loop (but only
outside the
5499                     outer-loop), unless it is double reduction.  */
5500                  gcc_assert ((STMT_VINFO_RELEVANT_P (exit_phi_vinfo)
5501                               && !STMT_VINFO_LIVE_P (exit_phi_vinfo))
5502                              || double_reduc);