[Bug target/104401] [x86] Failure to recognize min/max pattern using pcmp+pblendv

["cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104401

--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuhongt@gcc.gnu.org>:

https://gcc.gnu.org/g:6686e16fda419067b91614835dd743ebb82717ea

commit r14-7124-g6686e16fda419067b91614835dd743ebb82717ea
Author: liuhongt <hongtao.liu@intel.com>
Date:   Tue Dec 19 10:39:06 2023 +0800

    Optimize A < B ? A : B to MIN_EXPR.

    Similar for A < B ? B : A to MAX_EXPR.
    There're codes in the frontend to optimize such pattern but failed to
    handle testcase in the PR since it's exposed at gimple level when
    folding backend builtins.

    pr95906 now can be optimized to MAX_EXPR as it's commented in the
    testcase.

    // FIXME: this should further optimize to a MAX_EXPR
     typedef signed char v16i8 __attribute__((vector_size(16)));
     v16i8 f(v16i8 a, v16i8 b)

    gcc/ChangeLog:

            PR target/104401
            * match.pd (VEC_COND_EXPR: A < B ? A : B -> MIN_EXPR): New patten
match.

    gcc/testsuite/ChangeLog:

            * gcc.target/i386/pr104401.c: New test.
            * gcc.dg/tree-ssa/pr95906.c: Adjust testcase.