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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/99829] MVE: ICE in lra_assign at -O3
Date: Tue, 19 Mar 2024 20:59:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99829

--- Comment #8 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Vladimir Makarov <vmakarov@gcc.gnu.or=
g>:

https://gcc.gnu.org/g:9c91f8a88b2db50c8faf70786d3cef27b39ac9fc

commit r14-9557-g9c91f8a88b2db50c8faf70786d3cef27b39ac9fc
Author: Vladimir N. Makarov <vmakarov@redhat.com>
Date:   Tue Mar 19 16:57:11 2024 -0400

    [PR99829][LRA]: Fixing LRA ICE on arm

      LRA removed insn setting equivalence to memory whose output was
    reloaded. This resulted in writing an uninitiated value to the memory
    which triggered assert in LRA code checking the final generated code.
    This patch fixes the problem.  Comment in the patch contains more
    details about the problem and its solution.

    gcc/ChangeLog:

            PR target/99829
            * lra-constraints.cc (lra_constraints): Prevent removing insn
            with reverse equivalence to memory if the memory was reloaded.=