graphite: add missing dump_enabled_p checks (PR tree-optimization/88015)

gcc/ChangeLog:
	PR tree-optimization/88015
	* graphite-isl-ast-to-gimple.c
	(translate_isl_ast_to_gimple::scop_to_isl_ast): Add missing check
	for dump_enabled_p.
	* graphite-sese-to-poly.c (build_poly_scop): Likewise.

From-SVN: r266184

gcc/ChangeLog

+2018-11-15  David Malcolm  <dmalcolm@redhat.com>
+
+	PR tree-optimization/88015
+	* graphite-isl-ast-to-gimple.c
+	(translate_isl_ast_to_gimple::scop_to_isl_ast): Add missing check
+	for dump_enabled_p.
+	* graphite-sese-to-poly.c (build_poly_scop): Likewise.
+
 2018-11-15  Richard Biener  <rguenther@suse.de>
 
         PR middle-end/88029

gcc/graphite-isl-ast-to-gimple.c

@@ -1411,17 +1411,20 @@ scop_to_isl_ast (scop_p scop)
   isl_ctx_set_max_operations (scop->isl_context, old_max_operations);
   if (isl_ctx_last_error (scop->isl_context) != isl_error_none)
     {
-      dump_user_location_t loc = find_loop_location
-	(scop->scop_info->region.entry->dest->loop_father);
-      if (isl_ctx_last_error (scop->isl_context) == isl_error_quota)
-	dump_printf_loc (MSG_MISSED_OPTIMIZATION, loc,
-			 "loop nest not optimized, AST generation timed out "
-			 "after %d operations [--param max-isl-operations]\n",
-			 max_operations);
-      else
-	dump_printf_loc (MSG_MISSED_OPTIMIZATION, loc,
-			 "loop nest not optimized, ISL AST generation "
-			 "signalled an error\n");
+      if (dump_enabled_p ())
+	{
+	  dump_user_location_t loc = find_loop_location
+	    (scop->scop_info->region.entry->dest->loop_father);
+	  if (isl_ctx_last_error (scop->isl_context) == isl_error_quota)
+	    dump_printf_loc (MSG_MISSED_OPTIMIZATION, loc,
+			     "loop nest not optimized, AST generation timed out "
+			     "after %d operations [--param max-isl-operations]\n",
+			     max_operations);
+	  else
+	    dump_printf_loc (MSG_MISSED_OPTIMIZATION, loc,
+			     "loop nest not optimized, ISL AST generation "
+			     "signalled an error\n");
+	}
       isl_ast_node_free (ast_isl);
       return NULL;
     }

gcc/graphite-sese-to-poly.c

@@ -1218,7 +1218,8 @@ build_poly_scop (scop_p scop)
   enum isl_error err = isl_ctx_last_error (scop->isl_context);
   isl_ctx_reset_error (scop->isl_context);
   isl_options_set_on_error (scop->isl_context, old_err);
-  if (err != isl_error_none)
+  if (err != isl_error_none
+      && dump_enabled_p ())
     dump_printf (MSG_MISSED_OPTIMIZATION,
 		 "ISL error while building poly scop\n");