re PR fortran/78479 (ICE in gfc_apply_init, at fortran/expr.c:4135)

2016-11-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78479
	* expr.c (gfc_apply_init):  Allocate a charlen if needed.

2016-11-22  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/78479
	* gfortran.dg/char_component_initializer_3.f90: New test.

From-SVN: r242725

gcc/fortran/ChangeLog

+2016-11-22  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	PR fortran/78479
+	* expr.c (gfc_apply_init):  Allocate a charlen if needed.
+
 2016-11-22  Janus Weil  <janus@gcc.gnu.org>
 
 	PR fortran/78443

gcc/fortran/expr.c

@@ -4132,7 +4132,12 @@ gfc_apply_init (gfc_typespec *ts, symbol_attribute *attr, gfc_expr *init)
                 {
                   gfc_set_constant_character_len (len, ctor->expr,
                                                   has_ts ? -1 : first_len);
-                  ctor->expr->ts.u.cl->length = gfc_copy_expr (ts->u.cl->length);
+		  if (!ctor->expr->ts.u.cl)
+		    ctor->expr->ts.u.cl
+		      = gfc_new_charlen (gfc_current_ns, ts->u.cl);
+		  else
+                    ctor->expr->ts.u.cl->length
+		      = gfc_copy_expr (ts->u.cl->length);
                 }
             }
         }

gcc/testsuite/ChangeLog

+2016-11-22  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	PR fortran/78479
+	* gfortran.dg/char_component_initializer_3.f90: New test.
+
 2016-11-22  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/78451

gcc/testsuite/gfortran.dg/char_component_initializer_3.f90

+! { dg-do compile }
+program p
+   type t
+      character(3) :: c(1) = 'a' // ['b']
+   end type
+end