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To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/114733] [13 Regression] Miscompile with
 -march=rv64gcv -O3 on riscv
Date: Fri, 03 May 2024 13:55:10 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114733

--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:b3f9f10e03c570074a517dcfe9df8d3eeddd6aca

commit r13-8680-gb3f9f10e03c570074a517dcfe9df8d3eeddd6aca
Author: Richard Biener <rguenther@suse.de>
Date:   Tue Apr 16 10:46:03 2024 +0200

    tree-optimization/114733 - neg induction fails for 1 element vectors

    The neg induction vectorization code isn't prepared to deal with
    single element vectors.

            PR tree-optimization/114733
            * tree-vect-loop.cc (vectorizable_nonlinear_induction): Reject
            neg induction vectorization of single element vectors.

            * gcc.dg/vect/pr114733.c: New testcase.

    (cherry picked from commit 45a41ace55d0ffb1097e374868242329788ec82a)=