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Subject: [Bug target/95737] PPC: Unnecessary extsw after negative less than
Date: Wed, 18 May 2022 05:24:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95737

--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by HaoChen Gui <guihaoc@gcc.gnu.org>:

https://gcc.gnu.org/g:a174dc1a7f2bf0a71475ff633b130a60c0c3ff4a

commit r13-582-ga174dc1a7f2bf0a71475ff633b130a60c0c3ff4a
Author: Haochen Gui <guihaoc@gcc.gnu.org>
Date:   Wed May 11 09:19:52 2022 +0800

    This patch adds a combine pattern for "CA minus one". The SImode "CA mi=
nus
one" can be converted to DImode as CA only has two values (0 or 1).

    gcc/
            PR target/95737
            * config/rs6000/rs6000.md (*subfsi3_carry_in_xx_64): New.

    gcc/testsuite/
            PR target/95737
            * gcc.target/powerpc/pr95737.c: New.=