[Bug target/102327] gcc/config/i386/i386-expand.c:14678: Suspicious coding ?

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102327

--- Comment #4 from CVS 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:7fc4d6000a0d6c847c4c07373fbd4a17e54c678f

commit r12-3547-g7fc4d6000a0d6c847c4c07373fbd4a17e54c678f
Author: liuhongt <hongtao.liu@intel.com>
Date:   Wed Sep 15 15:19:28 2021 +0800

    Optimize for V{8,16,32}HFmode vec_set/extract/init.

    gcc/ChangeLog:

            PR target/102327
            * config/i386/i386-expand.c
            (ix86_expand_vector_init_interleave): Use puncklwd to pack 2
            HFmodes.
            (ix86_expand_vector_set): Use blendw instead of pinsrw.
            * config/i386/i386.c (ix86_can_change_mode_class): Adjust for
            AVX512FP16 which supports 16bit vector load.
            * config/i386/sse.md (avx512bw_interleave_highv32hi<mask_name>):
            Rename to ..
            (avx512bw_interleave_high<mode><mask_name>): .. this, and
            extend to V32HFmode.
            (avx2_interleave_highv16hi<mask_name>): Rename to ..
            (avx2_interleave_high<mode><mask_name>): .. this, and extend
            to V16HFmode.
            (vec_interleave_highv8hi<mask_name>): Rename to ..
            (vec_interleave_high<mode><mask_name>): .. this, and extend to
V8HFmode.
            (<mask_codefor>avx512bw_interleave_lowv32hi<mask_name>):
            Rename to ..
            (<mask_codefor>avx512bw_interleave_low<mode><mask_name>):
            this, and extend to V32HFmode.
            (avx2_interleave_lowv16hi<mask_name>): Rename to ..
            (avx2_interleave_low<mode><mask_name>): .. this, and extend to
V16HFmode.
            (vec_interleave_lowv8hi<mask_name>): Rename to ..
            (vec_interleave_low<mode><mask_name>): .. this, and extend to
V8HFmode.
            (sse4_1_pblendw): Rename to ..
            (sse4_1_pblend<blendsuf>): .. this, and extend to V8HFmode.
            (avx2_pblendph): New define_expand.
            (<sse2p4_1>_pinsr<ssemodesuffix>): Refactor, use
            sseintmodesuffix instead of ssemodesuffix.
            (blendsuf): New mode attr.

    gcc/testsuite/ChangeLog:

            * gcc.target/i386/pr102327-1.c: New test.
            * gcc.target/i386/pr102327-2.c: New test.
            * gcc.target/i386/avx512fp16-1c.c: Adjust testcase.