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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/108086] [11/12/13 Regression] internal
 compiler error: in set_accesses, at rtl-ssa/internals.inl:449
Date: Fri, 16 Dec 2022 12:06:11 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108086

--- Comment #14 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:da85bfc75024a92b97e60e4436863dd5789786ec

commit r13-4743-gda85bfc75024a92b97e60e4436863dd5789786ec
Author: Richard Biener <rguenther@suse.de>
Date:   Fri Dec 16 13:01:40 2022 +0100

    middle-end/108086 - avoid unshare_expr when remapping SSA names

    r0-89280-g129a37fc319db8 added unsharing to remap_ssa_name but
    that wasn't in the version of the patch posted.  That has some
    non-trivial cost through mostly_copy_tree_r and copy_tree_r but
    more importantly it doesn't seem to be necessary.  I've successfully
    bootstrapped and tested with an assert we only get
    tree_node_can_be_shared trees here.

    Bootstrapped and tested on x86_64-unknown-linux-gnu with all
    languages.

            PR middle-end/108086
            * tree-inline.cc (remap_ssa_name): Do not unshare the
            result from the decl_map.=