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Subject: [Bug tree-optimization/100981] [11 Regression] ICE in
 info_for_reduction, at tree-vect-loop.c:4897
Date: Wed, 16 Jun 2021 13:12:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100981

--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:68d2dbf845d8589c2a227a3097cbcff9429244b0

commit r11-8580-g68d2dbf845d8589c2a227a3097cbcff9429244b0
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.=