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Subject: [Bug rtl-optimization/101347] [11/12/13 Regression] ICE in
 cfg_layout_initialize with __builtin_setjmp and -fprofile-generate
 -fprofile-use
Date: Wed, 20 Jul 2022 13:12:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101347

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Alexander Monakov <amonakov@gcc.gnu.o=
rg>:

https://gcc.gnu.org/g:daa36cfc2fc2538810db071b81d250f4d621f7ea

commit r13-1766-gdaa36cfc2fc2538810db071b81d250f4d621f7ea
Author: Alexander Monakov <amonakov@ispras.ru>
Date:   Tue Jul 19 18:04:30 2022 +0300

    Avoid registering __builtin_setjmp_receiver label twice [PR101347]

    The testcase in the PR demonstrates how it is possible for one
    __builtin_setjmp_receiver label to appear in
    nonlocal_goto_handler_labels list twice (after the block with
    __builtin_setjmp_setup referring to it was duplicated).

    remove_node_from_insn_list did not account for this possibility and
    removed only the first copy from the list. Add an assert verifying that
    duplicates are not present.

    To avoid adding a label to the list twice, move registration of the
    label from __builtin_setjmp_setup handling to __builtin_setjmp_receiver.

    gcc/ChangeLog:

            PR rtl-optimization/101347
            * builtins.cc (expand_builtin) [BUILT_IN_SETJMP_SETUP]: Move
            population of nonlocal_goto_handler_labels from here ...
            (expand_builtin) [BUILT_IN_SETJMP_RECEIVER]: ... to here.
            * rtlanal.cc (remove_node_from_insn_list): Verify that a
            duplicate is not present in the remainder of the list.=