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Subject: [Bug ipa/94947] [8 Regression] -fipa-pta + pthread_once crash since
 r6-5684-g47e5754e17e9ac3b
Date: Tue, 01 Dec 2020 14:02:46 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94947

--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-8 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:1cd95acac5a521937b205ace0db3f1a042561dd8

commit r8-10661-g1cd95acac5a521937b205ace0db3f1a042561dd8
Author: Richard Biener <rguenther@suse.de>
Date:   Tue May 5 13:09:50 2020 +0200

    ipa/94947 - fix test for externally visible variables for IPA PTA

    This fixes lack of an escape point of externally declared variables.

    2020-05-05  Richard Biener  <rguenther@suse.de>

            PR ipa/94947
            * tree-ssa-structalias.c (ipa_pta_execute): Use
            varpool_node::externally_visible_p ().
            (refered_from_nonlocal_var): Likewise.

            * gcc.dg/torture/pr94947-1.c: New testcase.
            * gcc.dg/torture/pr94947-2.c: Likewise.

    (cherry picked from commit f9b5db750bc7fbba69fee93564907f7da1bca35f)=