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Subject: [Bug tree-optimization/97760] [10/11 Regression] GCC outputs wrong
 values when compiling the testcase with -O3 since r10-4200-gb7ff7cef5005721e
Date: Tue, 10 Nov 2020 09:18:04 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97760

--- Comment #6 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:2686de5617bfb572343933be2883e8274c9735b5

commit r11-4865-g2686de5617bfb572343933be2883e8274c9735b5
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Nov 9 15:19:56 2020 +0100

    tree-optimization/97760 - reduction paths with unhandled live stmt

    This makes sure we reject reduction paths with a live stmt that
    is not the last one altering the value.  This is because we do not
    handle this in the epilogue unless there's a scalar epilogue loop.

    2020-11-09  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/97760
            * tree-vect-loop.c (check_reduction_path): Reject
            reduction paths we do not handle in epilogue generation.

            * gcc.dg/vect/pr97760.c: New testcase.=