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Subject: [Bug tree-optimization/99856] [9 Regression] Alpha Compositing auto
 vectorization regression
Date: Thu, 01 Apr 2021 09:42:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99856

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:3d705c86c08985af73823b71af21c2ffe2c23758

commit r9-9317-g3d705c86c08985af73823b71af21c2ffe2c23758
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Apr 1 09:29:14 2021 +0200

    tree-optimization/99856 - fix overwideing pattern creation

    This fixes an omission of promoting a bit-precision required precision
    to a vector element precision.

    2021-04-01  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/99856
            * tree-vect-patterns.c (vect_recog_over_widening_pattern): Prom=
ote
            precision to vector element precision.

            * gcc.dg/vect/pr99856.c: New testcase.

    (cherry picked from commit 1cfe48d35e31e905632e37ae6a9cb37d35f9a228)=