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Subject: [Bug rtl-optimization/102842] [10/11/12 Regression] ICE in
 cselib_record_set at -O2 or greater
Date: Wed, 03 Nov 2021 17:48:31 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102842

--- Comment #16 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Vladimir Makarov
<vmakarov@gcc.gnu.org>:

https://gcc.gnu.org/g:b7faffdb05aea6448b62b5d3b13009fc68dd103b

commit r10-10251-gb7faffdb05aea6448b62b5d3b13009fc68dd103b
Author: Vladimir N. Makarov <vmakarov@redhat.com>
Date:   Tue Oct 26 14:03:42 2021 -0400

    [PR102842] Consider all outputs in generation of matching reloads

    Without considering all output insn operands (not only processed
    before), in rare cases LRA can use the same hard register for
    different outputs of the insn on different assignment subpasses.  The
    patch fixes the problem.

    gcc/ChangeLog:

            PR rtl-optimization/102842
            * lra-constraints.c (match_reload): Ignore out in checking valu=
es
            of outs.
            (curr_insn_transform): Collect outputs before doing reloads of
operands.

    gcc/testsuite/ChangeLog:

            PR rtl-optimization/102842
            * g++.target/arm/pr102842.C: New test.=