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From: "jakub at redhat dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug default/26987] GCC 11 Ada binaries contain unknown tags
Date: Wed, 02 Dec 2020 15:18:25 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26987

--- Comment #17 from Jakub Jelinek <jakub at redhat dot com> ---
For the DW_FORM_{block,exprloc} case, I'd think something like:
--- gcc/dwarf2out.c     2020-12-01 14:39:32.175882586 +0100
+++ gcc/dwarf2out.c     2020-12-02 16:16:44.189189583 +0100
@@ -20780,7 +20780,14 @@ add_scalar_info (dw_die_ref die, enum dw
           the precision of its type.  The precision and signedness
           of the type will be necessary to re-interpret it
           unambiguously.  */
-       add_AT_wide (die, attr, wi::to_wide (value));
+       {
+         rtx v =3D immed_wide_int_const (value, TYPE_MODE (TREE_TYPE (valu=
e)));
+         dw_loc_descr_ref loc
+           =3D loc_descriptor (v, TYPE_MODE (TREE_TYPE (value)),
+                             VAR_INIT_STATUS_INITIALIZED);
+         if (loc)
+           add_AT_loc (die, attr, loc);
+       }
       return;
     }

could do it, but as I don't speak Ada I can't verify easily.

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