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Subject: [Bug tree-optimization/100981] ICE in info_for_reduction, at
 tree-vect-loop.c:4897
Date: Wed, 09 Jun 2021 14:35:23 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100981

--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:374f93da97fb0378453d503f3cfea4d7a923a89c

commit r12-1330-g374f93da97fb0378453d503f3cfea4d7a923a89c
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Jun 9 14:48:35 2021 +0200

    tree-optimization/100981 - fix SLP patterns involving reductions

    The following fixes the SLP FMA patterns to preserve reduction
    info and the reduction vectorization to consider internal function
    call defs for the reduction stmt.

    2021-06-09  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/100981
    gcc/
            * tree-vect-loop.c (vect_create_epilog_for_reduction): Use
            gimple_get_lhs to also handle calls.
            * tree-vect-slp-patterns.c (complex_pattern::build): Transfer
            reduction info.

    gcc/testsuite/
            * gfortran.dg/vect/pr100981-1.f90: New testcase.

    libgomp/
            * testsuite/libgomp.fortran/pr100981-2.f90: New testcase.=