[Bug target/106562] PRU: Inefficient code for zero check of 64-bit (boolean) AND result

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106562

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Dimitar Dimitrov <dimi...@gcc.gnu.org>:

https://gcc.gnu.org/g:e95e91eccd022a4a3a86da2749809fbad9afd20e

commit r13-3180-ge95e91eccd022a4a3a86da2749809fbad9afd20e
Author: Dimitar Dimitrov <dimi...@dinux.eu>
Date:   Sun Sep 18 16:27:18 2022 +0300

    pru: Add cbranchdi4 pattern

    Manually expanding into 32-bit comparisons is much more efficient than
    the default expansion into word-size comparisons.  Note that word for PRU
    is 8-bit.

            PR target/106562

    gcc/ChangeLog:

            * config/pru/pru-protos.h (pru_noteq_condition): New
            function declaration.
            * config/pru/pru.cc (pru_noteq_condition): New function.
            * config/pru/pru.md (cbranchdi4): Define new pattern.

    gcc/testsuite/ChangeLog:

            * gcc.target/pru/pr106562-1.c: New test.
            * gcc.target/pru/pr106562-2.c: New test.
            * gcc.target/pru/pr106562-3.c: New test.
            * gcc.target/pru/pr106562-4.c: New test.

    Signed-off-by: Dimitar Dimitrov <dimi...@dinux.eu>