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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/106421] [10/11/12 Regression] ICE with
 computed goto from a nested functon
Date: Thu, 27 Apr 2023 13:19:01 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106421

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:0a5fb0ee337b824224a2c13b76fd682b62e6d314

commit r12-9480-g0a5fb0ee337b824224a2c13b76fd682b62e6d314
Author: Roger Sayle <roger@nextmovesoftware.com>
Date:   Tue Jan 10 14:05:46 2023 +0000

    PR rtl-optimization/106421: ICE in bypass_block from non-local goto.

    This patch fixes PR rtl-optimization/106421, an ICE-on-valid (but
    undefined) regression.  The fix, as proposed by Richard Biener, is to
    defend against BLOCK_FOR_INSN returning NULL in cprop's bypass_block.

    2023-01-10  Roger Sayle  <roger@nextmovesoftware.com>

    gcc/ChangeLog
            PR rtl-optimization/106421
            * cprop.cc (bypass_block): Check that DEST is local to this
            function (non-NULL) before calling find_edge.

    gcc/testsuite/ChangeLog
            PR rtl-optimization/106421
            * gcc.dg/pr106421.c: New test case.

    (cherry picked from commit 851e1ba03f9de699a754dd8648fc151c3e26d697)=