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From: "anlauf at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/100949] [9/10/11/12 Regression] ICE in
 gfc_conv_expr_present, at fortran/trans-expr.c:1975
Date: Tue, 13 Jul 2021 19:25:14 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100949

anlauf at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |anlauf at gcc dot gnu.org

--- Comment #2 from anlauf at gcc dot gnu.org ---
Tentative patch which regtests ok:

diff --git a/gcc/fortran/trans-expr.c b/gcc/fortran/trans-expr.c
index de406ad2e8f..9e0dcdefd25 100644
--- a/gcc/fortran/trans-expr.c
+++ b/gcc/fortran/trans-expr.c
@@ -1741,8 +1741,9 @@ gfc_trans_class_init_assign (gfc_code *code)
        }
     }

-  if (code->expr1->symtree->n.sym->attr.optional
-      || code->expr1->symtree->n.sym->ns->proc_name->attr.entry_master)
+  if (code->expr1->symtree->n.sym->attr.dummy
+      && (code->expr1->symtree->n.sym->attr.optional
+         || code->expr1->symtree->n.sym->ns->proc_name->attr.entry_master))
     {
       tree present =3D gfc_conv_expr_present (code->expr1->symtree->n.sym);
       tmp =3D build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),=