[Bug target/104371] [x86] Failure to use optimize pxor+pcmpeqb+pmovmskb+cmp 0xFFFF pattern to ptest

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104371

--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Hongyu Wang <hong...@gcc.gnu.org>:

https://gcc.gnu.org/g:3c9364f29e7e47eb9de33f2d8843d5b00284ceca

commit r13-338-g3c9364f29e7e47eb9de33f2d8843d5b00284ceca
Author: Haochen Jiang <haochen.ji...@intel.com>
Date:   Tue Feb 8 10:51:26 2022 +0800

    i386: Add combine splitter to transform pxor/pcmpeqb/pmovmskb/cmp 0xffff to
ptest.

    gcc/ChangeLog:

            PR target/104371
            * config/i386/sse.md (vi1avx2const): New define_mode_attr.
            (pxor/pcmpeqb/pmovmskb/cmp 0xffff to ptest splitter):
            New define_split pattern.

    gcc/testsuite/ChangeLog:

            PR target/104371
            * gcc.target/i386/pr104371-1.c: New test.
            * gcc.target/i386/pr104371-2.c: Ditto.