[Bug target/100165] fmov could be used to zero out the upper bits instead of movi/zip or movi/ins with __builtin_shuffle and zero vector

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100165

--- Comment #9 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Pengxuan Zheng <pzh...@gcc.gnu.org>:

https://gcc.gnu.org/g:265fdb3fa91346f1be40111a9f3e8a0838f7d7fd

commit r16-704-g265fdb3fa91346f1be40111a9f3e8a0838f7d7fd
Author: Pengxuan Zheng <quic_pzh...@quicinc.com>
Date:   Mon May 12 10:21:49 2025 -0700

    aarch64: Add more vector permute tests for the FMOV optimization [PR100165]

    This patch adds more tests for vector permutes which can now be optimized
as
    FMOV with the generic PERM change and the aarch64 AND patch.

    Changes since v1:
    * v2: Add -mlittle-endian to the little endian tests explicitly and rename
the
    tests accordingly.

            PR target/100165

    gcc/testsuite/ChangeLog:

            * gcc.target/aarch64/fmov-3-be.c: New test.
            * gcc.target/aarch64/fmov-3-le.c: New test.
            * gcc.target/aarch64/fmov-4-be.c: New test.
            * gcc.target/aarch64/fmov-4-le.c: New test.
            * gcc.target/aarch64/fmov-5-be.c: New test.
            * gcc.target/aarch64/fmov-5-le.c: New test.

    Signed-off-by: Pengxuan Zheng <quic_pzh...@quicinc.com>