[Bug tree-optimization/98365] Miss vectoization for signed char ifcvt

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98365

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

https://gcc.gnu.org/g:28daadc98094501175c9dfe4a985871fa6aa4f94

commit r12-1138-g28daadc98094501175c9dfe4a985871fa6aa4f94
Author: liuhongt <hongtao....@intel.com>
Date:   Wed Jan 6 16:33:27 2021 +0800

    Extend is_cond_scalar_reduction to handle nop_expr after/before scalar
reduction.[PR98365]

    gcc/ChangeLog:

            PR tree-optimization/98365
            * tree-if-conv.c (strip_nop_cond_scalar_reduction): New function.
            (is_cond_scalar_reduction): Handle nop_expr in cond scalar
reduction.
            (convert_scalar_cond_reduction): Ditto.
            (predicate_scalar_phi): Ditto.

    gcc/testsuite/ChangeLog:

            PR tree-optimization/98365
            * gcc.target/i386/pr98365.c: New test.