re PR fortran/42309 (Problem with a pointer array passed to a subroutine)

	PR fortran/42309
	* trans-expr.c (gfc_conv_subref_array_arg): Avoid accessing
	info->dimen after info has been freed.

From-SVN: r156659

gcc/fortran/ChangeLog

+2010-02-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR fortran/42309
+	* trans-expr.c (gfc_conv_subref_array_arg): Avoid accessing
+	info->dimen after info has been freed.
+
 2010-02-09  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 
 	PR fortran/42999

gcc/fortran/trans-expr.c

@@ -2311,6 +2311,7 @@ gfc_conv_subref_array_arg (gfc_se * parmse, gfc_expr * expr, int g77,
   tree size;
   stmtblock_t body;
   int n;
+  int dimen;
 
   gcc_assert (expr->expr_type == EXPR_VARIABLE);
 
@@ -2439,9 +2440,10 @@ gfc_conv_subref_array_arg (gfc_se * parmse, gfc_expr * expr, int g77,
      outside the innermost loop, so the overall transfer could be
      optimized further.  */
   info = &rse.ss->data.info;
+  dimen = info->dimen;
 
   tmp_index = gfc_index_zero_node;
-  for (n = info->dimen - 1; n > 0; n--)
+  for (n = dimen - 1; n > 0; n--)
     {
       tree tmp_str;
       tmp = rse.loop->loopvar[n];
@@ -2508,7 +2510,7 @@ gfc_conv_subref_array_arg (gfc_se * parmse, gfc_expr * expr, int g77,
     {
       size = gfc_index_one_node;
       offset = gfc_index_zero_node;  
-      for (n = 0; n < info->dimen; n++)
+      for (n = 0; n < dimen; n++)
 	{
 	  tmp = gfc_conv_descriptor_ubound_get (parmse->expr,
 						gfc_rank_cst[n]);