r112455 - in /trunk/gcc: ChangeLog fold-const.c...

[sayle@gcc.gnu.org]

Author: sayle
Date: Tue Mar 28 17:06:19 2006
New Revision: 112455

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=112455
Log:

	* fold-const.c (fold_unary) <NOP_EXPR>: Fold (T1)(~(T2)X) as
	~(T1)X, when T1 and T2 are integer types of the same precision
	and (T2)X isn't an extension.

	* gcc.dg/fold-convnotconv-1.c: New test case.


Added:
    trunk/gcc/testsuite/gcc.dg/fold-convnotconv-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog