+2005-03-04 Andrew Pinski <pinskia@physics.uc.edu>
+
+ Revert for now:
+ 2005-03-03 James A. Morrison <phython@gcc.gnu.org>
+ PR tree-optimization/15784
+ * fold-const.c (fold): Fold ~A + 1 to -1. Fold -A - 1
+ and -1 - A to ~A.
+
2005-03-04 Ben Elliston <bje@au.ibm.com>
* gcc.c (option_map): Add --coverage.
if (TREE_CODE (arg0) == NEGATE_EXPR
&& reorder_operands_p (TREE_OPERAND (arg0, 0), arg1))
return fold (build2 (MINUS_EXPR, type, arg1, TREE_OPERAND (arg0, 0)));
- /* Convert ~A + 1 to -A. */
- if (INTEGRAL_TYPE_P (type)
- && TREE_CODE (arg0) == BIT_NOT_EXPR
- && integer_onep (arg1))
- return fold (build1 (NEGATE_EXPR, type, TREE_OPERAND (arg0, 0)));
if (TREE_CODE (type) == COMPLEX_TYPE)
{
&& reorder_operands_p (arg0, arg1))
return fold (build2 (MINUS_EXPR, type, negate_expr (arg1),
TREE_OPERAND (arg0, 0)));
- /* Convert -A - 1 to ~A. */
- if (INTEGRAL_TYPE_P (type)
- && TREE_CODE (arg0) == NEGATE_EXPR
- && integer_onep (arg1))
- return fold (build1 (BIT_NOT_EXPR, type, TREE_OPERAND (arg0, 0)));
-
- /* Convert -1 - A to ~A. */
- if (INTEGRAL_TYPE_P (type)
- && integer_all_onesp (arg0))
- return fold (build1 (BIT_NOT_EXPR, type, arg1));
if (TREE_CODE (type) == COMPLEX_TYPE)
{