[Bug target/94833] vec_first_match_index does not function as described in its description

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94833

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-8 branch has been updated by Carl Love <ca...@gcc.gnu.org>:

https://gcc.gnu.org/g:c6dce1d8083a2fdc94be167a2465db7fd837ccae

commit r8-10304-gc6dce1d8083a2fdc94be167a2465db7fd837ccae
Author: Carl Love <c...@us.ibm.com>
Date:   Wed Jun 10 16:12:08 2020 -0500

    pr94833, fix vec_first_match_index for nulls

    Backported patch from mainline.  Updated ChangeLog format
            commit 24f68831d25bad739a6fe167a58b5b4c0c3cbf9a
            Author: Carl Love <c...@us.ibm.com>
            Date:   Wed Apr 29 10:23:11 2020 -0500

            Note the mainlin patch adds tests to the test case in mainline. 
The test
            case does not exist in GCC 8.  Only the functional change in
            gcc/config/rs6000/vsx.md was backported.

    2020-06-10  Carl Love  <c...@us.ibm.com>

    gcc/
            PR target/94833
            * config/rs6000/vsx.md (define_expand): Fix instruction generation
for
            first_match_index_<mode>.