[Bug fortran/108420] [13 Regression] ICE in check_charlen_present, at fortran/iresolve.cc:98

[anlauf at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108420

--- Comment #2 from anlauf at gcc dot gnu.org ---
I'm regtesting the following patch which fixes both cases:

diff --git a/gcc/fortran/iresolve.cc b/gcc/fortran/iresolve.cc
index 711e9178ad4..33794f0a858 100644
--- a/gcc/fortran/iresolve.cc
+++ b/gcc/fortran/iresolve.cc
@@ -94,9 +94,12 @@ check_charlen_present (gfc_expr *source)
   else if (source->expr_type == EXPR_ARRAY)
     {
       gfc_constructor *c = gfc_constructor_first (source->value.constructor);
-      source->ts.u.cl->length
-               = gfc_get_int_expr (gfc_charlen_int_kind, NULL,
-                                   c->expr->value.character.length);
+      if (c)
+       source->ts.u.cl->length
+         = gfc_get_int_expr (gfc_charlen_int_kind, NULL,
+                             c->expr->value.character.length);
+      if (source->ts.u.cl->length == NULL)
+       gfc_internal_error ("check_charlen_present(): length not set");
     }
 }