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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/107576] [10/11/12/13 Regression] ICE in
 gfc_conv_procedure_call, at fortran/trans-expr.cc:6193
Date: Fri, 11 Nov 2022 22:00:07 +0000
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X-Bugzilla-Type: changed
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: fortran
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: accepts-invalid, ice-on-invalid-code
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X-Bugzilla-Who: anlauf at gcc dot gnu.org
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X-Bugzilla-Priority: P4
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Message-ID: <bug-107576-4-dpBaSo0cP3@http.gcc.gnu.org/bugzilla/>
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107576

--- Comment #4 from anlauf at gcc dot gnu.org ---
Partial fix:

diff --git a/gcc/fortran/trans-expr.cc b/gcc/fortran/trans-expr.cc
index b95c5cf2f96..f09fad337bc 100644
--- a/gcc/fortran/trans-expr.cc
+++ b/gcc/fortran/trans-expr.cc
@@ -6193,6 +6193,7 @@ gfc_conv_procedure_call (gfc_se * se, gfc_symbol * sy=
m,
        }
       else if (arg->expr->expr_type =3D=3D EXPR_NULL
               && fsym && !fsym->attr.pointer
+              && fsym->attr.optional
               && (fsym->ts.type !=3D BT_CLASS
                   || !CLASS_DATA (fsym)->attr.class_pointer))
        {=