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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/109524] [13 Regression] ICE: SIGSEGV in
 remove_unreachable::remove_and_update_globals (tree-vrp.cc:136) with -O3
 -fno-tree-forwprop -fnon-call-exceptions -fno-tree-ccp -fno-tree-fre
Date: Wed, 19 Apr 2023 08:04:58 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109524

--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:794ffdb0fb6312ce07af0bfc797bef9f4cff4c61

commit r14-59-g794ffdb0fb6312ce07af0bfc797bef9f4cff4c61
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Wed Apr 19 10:01:04 2023 +0200

    testsuite: Fix up pr109524.C for -std=3Dc++23 [PR109524]

    This testcase was reduced such that it isn't valid C++23, so with my
    usual testing with GXX_TESTSUITE_STDS=3D98,11,14,17,20,2b it fails:
    FAIL: g++.dg/pr109524.C  -std=3Dgnu++2b (test for excess errors)
    .../gcc/testsuite/g++.dg/pr109524.C: In function 'nn hh(nn)':
    .../gcc/testsuite/g++.dg/pr109524.C:35:12: error: cannot bind non-const
lvalue reference of type 'nn&' to an rvalue of type 'nn'
    .../gcc/testsuite/g++.dg/pr109524.C:17:6: note:   initializing argument=
 1
of 'nn::nn(nn&)'
    The following patch fixes that and I've verified it doesn't change
    anything on what the test was testing, it still ICEs in r13-7198 and
    passes in r13-7203, now in all language modes (except for 98 where
    it is intentionally UNSUPPORTED).

    2023-04-19  Jakub Jelinek  <jakub@redhat.com>

            PR tree-optimization/109524
            * g++.dg/pr109524.C (nn::nn): Change argument type from nn & to
            const nn &.=