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Subject: [Bug target/99663] [11 Regression] ICE in extract_constrain_insn, at
 recog.c:2670 on s390x-linux-gnu
Date: Fri, 19 Mar 2021 19:36:16 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99663

--- Comment #10 from CVS 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:d81019db099ad95febbb2d4b4afd8cbe95762062

commit r11-7741-gd81019db099ad95febbb2d4b4afd8cbe95762062
Author: Vladimir N. Makarov <vmakarov@redhat.com>
Date:   Fri Mar 19 15:34:48 2021 -0400

    [PR99663] Don't use unknown constraint for address constraint in
process_address_1.

    s390x has insns using several alternatives with address constraints.  E=
ven
    if we don't know at this stage what alternative will be used, we still =
can
say
    that is an address constraint.  So don't use unknown constraint in this
    case when there are multiple constraints or/and alternative.

    gcc/ChangeLog:

            PR target/99663
            * lra-constraints.c (process_address_1): Don't use unknown
            constraint for address constraint.

    gcc/testsuite/ChangeLog:

            PR target/99663
            * gcc.target/s390/pr99663.c: New.=