re PR middle-end/17967 (Expand is considered slower? (remove_useless_stmts is…

re PR middle-end/17967 (Expand is considered slower? (remove_useless_stmts is considered part of expand))

2004-10-14  Andrew Pinski  <pinskia@physics.uc.edu>

        PR middle-end/17967
        Revert:
                * tree-cfg.c (remove_usless_stmts_cond):  Fold statement.
                (remove_useless_stmts_1):  Fold trees we know how to fold.

From-SVN: r89057

gcc/ChangeLog

+2004-10-14  Andrew Pinski  <pinskia@physics.uc.edu>
+
+	PR middle-end/17967
+	Revert:
+		* tree-cfg.c (remove_usless_stmts_cond):  Fold statement.
+		(remove_useless_stmts_1):  Fold trees we know how to fold.
+
 2004-10-14  Joseph S. Myers  <joseph@codesourcery.com>
 
 	* config/rs6000/eabispe.h (SUBSUBTARGET_OVERRIDE_OPTIONS),

gcc/tree-cfg.c

@@ -1204,7 +1204,6 @@ remove_useless_stmts_cond (tree *stmt_p, struct rus_data *data)
   else_has_label = data->has_label;
   data->has_label = save_has_label | then_has_label | else_has_label;
 
-  fold_stmt (stmt_p);
   then_clause = COND_EXPR_THEN (*stmt_p);
   else_clause = COND_EXPR_ELSE (*stmt_p);
   cond = COND_EXPR_COND (*stmt_p);
@@ -1552,13 +1551,11 @@ remove_useless_stmts_1 (tree *tp, struct rus_data *data)
       break;
 
     case RETURN_EXPR:
-      fold_stmt (tp);
       data->last_goto = NULL;
       data->may_branch = true;
       break;
 
     case CALL_EXPR:
-      fold_stmt (tp);
       data->last_goto = NULL;
       notice_special_calls (t);
       update_call_expr_flags (t);
@@ -1568,7 +1565,6 @@ remove_useless_stmts_1 (tree *tp, struct rus_data *data)
 
     case MODIFY_EXPR:
       data->last_goto = NULL;
-      fold_stmt (tp);
       op = get_call_expr_in (t);
       if (op)
 	{
@@ -1604,10 +1600,6 @@ remove_useless_stmts_1 (tree *tp, struct rus_data *data)
 	  }
       }
       break;
-    case SWITCH_EXPR:
-      fold_stmt (tp);
-      data->last_goto = NULL;
-      break;
 
     default:
       data->last_goto = NULL;