[Bug tree-optimization/114921] Optimization flags cause _Float16 to __bf16 casting to do nothing

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114921

--- Comment #5 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-14 branch has been updated by Richard Biener
<rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:9e971c671ded9647beb0a1c5b9430b4e64060862

commit r14-10255-g9e971c671ded9647beb0a1c5b9430b4e64060862
Author: Richard Biener <rguent...@suse.de>
Date:   Mon May 6 12:03:09 2024 +0200

    tree-optimization/114921 - _Float16 -> __bf16 isn't noop fixup

    The following further strengthens the check which convert expressions
    we allow to vectorize as simple copy by resorting to
    tree_nop_conversion_p on the vector components.

            PR tree-optimization/114921
            * tree-vect-stmts.cc (vectorizable_assignment): Use
            tree_nop_conversion_p to identify converts we can vectorize
            with a simple assignment.

    (cherry picked from commit d0d6dcc019cd32eebf85d625f56e0f7573938319)