re PR fortran/90002 (ICE: free_expr0(): Bad expr type)

2019-06-12  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/90002
	* array.c (gfc_free_array_spec): When freeing an array-spec, avoid
	an ICE for assumed-shape coarrays 

2019-06-12  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/90002
	* gfortran.dg/pr90002.f90: New test.

From-SVN: r272201

gcc/fortran/ChangeLog

+2019-06-12  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	PR fortran/90002
+	* array.c (gfc_free_array_spec): When freeing an array-spec, avoid
+	an ICE for assumed-shape coarrays 
+
 2019-06-08  Paul Thomas  <pault@gcc.gnu.org>
 
 	PR fortran/90786

gcc/fortran/array.c

@@ -324,10 +324,22 @@ gfc_free_array_spec (gfc_array_spec *as)
   if (as == NULL)
     return;
 
-  for (i = 0; i < as->rank + as->corank; i++)
+  if (as->corank == 0)
     {
-      gfc_free_expr (as->lower[i]);
-      gfc_free_expr (as->upper[i]);
+      for (i = 0; i < as->rank; i++)
+	{
+	  gfc_free_expr (as->lower[i]);
+	  gfc_free_expr (as->upper[i]);
+	}
+    }
+  else
+    {
+      int n = as->rank + as->corank - (as->cotype == AS_EXPLICIT ? 1 : 0);
+      for (i = 0; i < n; i++)
+	{
+	  gfc_free_expr (as->lower[i]);
+	  gfc_free_expr (as->upper[i]);
+	}
     }
 
   free (as);

gcc/testsuite/ChangeLog

+2019-06-12  Steven G. Kargl  <kargl@gcc.gnu.org>
+
+	PR fortran/90002
+	* gfortran.dg/pr90002.f90: New test.
+
 2019-06-12  Martin Sebor  <msebor@redhat.com>
 
 	PR middle-end/90676

gcc/testsuite/gfortran.dg/pr90002.f90

+! { dg-do compile }
+! { dg-options "-fcoarray=single" }
+! Contributed by Arseny Solokha <asolokha at gmx dot de>
+module pc
+  integer, dimension(1) :: zw[1:1,1:*]
+end module pc