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Subject: [Bug middle-end/105629] [13 Regression] g++.dg/opt/pr94589-2.C for
 cris, m68k, s390x
Date: Tue, 24 May 2022 06:20:20 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105629

--- Comment #8 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:d918faea1217596877a35c4946500399731fbbd3

commit r13-722-gd918faea1217596877a35c4946500399731fbbd3
Author: Richard Biener <rguenther@suse.de>
Date:   Mon May 23 11:41:50 2022 +0200

    tree-optimization/105629 - spaceship recognition regression

    With the extra GENERIC folding we now do to
    (unsigned int) __v._M_value & 1 !=3D (unsigned int) __v._M_value
    we end up with a sign-extending conversion to unsigned int
    rather than the sign-conversion to unsigned char we expect.
    Relaxing that fixes the regression.

    2022-05-23  Richard Biener  <rguenther@suse.de>

            PR tree-optimization/105629
            * tree-ssa-phiopt.cc (spaceship_replacement): Allow
            a sign-extending conversion.=