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From: "ibuclaw at gdcproject dot org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/99466] internal compiler error: in
 function_and_variable_visibility, at ipa-visibility.c:795
Date: Mon, 08 Mar 2021 14:19:59 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99466

--- Comment #2 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
(In reply to Martin Li=C5=A1ka from comment #1)
> What compiler options do you use?
No compiler options are necessary to reproduce the ICE.  The symbol it fail=
s on
is ___emutls_t.tlsvar.

Having a look at where this variable is created, it looks like TREE_PUBLIC =
is
copied for DECL_ONE_ONLY symbols, but not DECL_WEAK.

--- a/gcc/tree-emutls.c
+++ b/gcc/tree-emutls.c
@@ -242,16 +242,18 @@ get_emutls_init_templ_addr (tree decl)
   DECL_PRESERVE_P (to) =3D DECL_PRESERVE_P (decl);

   DECL_WEAK (to) =3D DECL_WEAK (decl);
-  if (DECL_ONE_ONLY (decl))
+  if (DECL_ONE_ONLY (decl) || DECL_WEAK (decl))
     {
       TREE_STATIC (to) =3D TREE_STATIC (decl);
       TREE_PUBLIC (to) =3D TREE_PUBLIC (decl);
       DECL_VISIBILITY (to) =3D DECL_VISIBILITY (decl);
-      make_decl_one_only (to, DECL_ASSEMBLER_NAME (to));
     }
   else
     TREE_STATIC (to) =3D 1;

+  if (DECL_ONE_ONLY (decl))
+    make_decl_one_only (to, DECL_ASSEMBLER_NAME (to));
+
   DECL_VISIBILITY_SPECIFIED (to) =3D DECL_VISIBILITY_SPECIFIED (decl);
   DECL_INITIAL (to) =3D DECL_INITIAL (decl);
   DECL_INITIAL (decl) =3D NULL;=