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Subject: [Bug target/100637] [i386] Vectorize 4-byte vectors
Date: Fri, 04 Jun 2021 15:38:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100637

--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Uros Bizjak <uros@gcc.gnu.org>:

https://gcc.gnu.org/g:8d7dae0eb366a88a1baba1857ecc54c09e4a520e

commit r12-1215-g8d7dae0eb366a88a1baba1857ecc54c09e4a520e
Author: Uros Bizjak <ubizjak@gmail.com>
Date:   Fri Jun 4 17:37:15 2021 +0200

    i386: Add init pattern for V2HI vectors [PR100637]

    2021-06-03  Uro=C3=85=C2=A1 Bizjak  <ubizjak@gmail.com>

    gcc/
            PR target/100637
            * config/i386/i386-expand.c (ix86_expand_vector_init_duplicate):
            Handle V2HI mode.
            (ix86_expand_vector_init_general): Ditto.
            Use SImode instead of word_mode for logic operations
            when GET_MODE_SIZE (mode) < UNITS_PER_WORD.
            (expand_vec_perm_even_odd_1): Assert that V2HI mode should be
            implemented by expand_vec_perm_1.
            (expand_vec_perm_broadcast_1): Assert that V2HI and V4HI modes
            should be implemented using standard shuffle patterns.
            (ix86_vectorize_vec_perm_const): Handle V2HImode.  Add V4HI and
            V2HI modes to modes, implementable with shuffle for one operand.
            * config/i386/mmx.md (*punpckwd): New insn_and_split pattern.
            (*pshufw_1): New insn pattern.
            (*vec_dupv2hi): Ditto.
            (vec_initv2hihi): New expander.

    gcc/testsuite/

            PR target/100637
            * gcc.dg/vect/slp-perm-9.c (dg-final): Adjust dumps for vect32
targets.=