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Subject: [Bug target/99808] [8/9/10/11 Regression] ICE in as_a, at
 machmode.h:365
Date: Mon, 29 Mar 2021 10:55:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99808

--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Kyrylo Tkachov <ktkachov@gcc.gnu.org>:

https://gcc.gnu.org/g:37d9074e12082132ae62c12fbe958c697f638c0a

commit r11-7888-g37d9074e12082132ae62c12fbe958c697f638c0a
Author: Kyrylo Tkachov <kyrylo.tkachov@arm.com>
Date:   Mon Mar 29 11:52:24 2021 +0100

    aarch64: PR target/99037 Fix RTL represntation in move_lo_quad patterns

    This patch fixes the RTL representation of the move_lo_quad patterns to=
 use
aarch64_simd_or_scalar_imm_zero
    for the zero part rather than a vec_duplicate of zero or a const_int 0.
    The expander that generates them is also adjusted so that we use and ma=
tch
the correct const_vector forms throughout.

    Co-Authored-By: Jakub Jelinek <jakub@redhat.com>

    gcc/ChangeLog:

            PR target/99037
            * config/aarch64/aarch64-simd.md (move_lo_quad_internal_<mode>):
Use
            aarch64_simd_or_scalar_imm_zero to match zeroes.  Remove pattern
            matching const_int 0.
            (move_lo_quad_internal_be_<mode>): Likewise.
            (move_lo_quad_<mode>): Update for the above.
            * config/aarch64/iterators.md (VQ_2E): Delete.

    gcc/testsuite/ChangeLog:

            PR target/99808
            * gcc.target/aarch64/pr99808.c: New test.=