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r163413 - in /trunk/gcc: ChangeLog simplify-rtx.c


Author: jakub
Date: Fri Aug 20 18:08:10 2010
New Revision: 163413

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163413
Log:
	* simplify-rtx.c (simplify_unary_operation_1): Optimize
	(sign_extend (zero_extend ()) and
	({sign,zero}_extend (lshiftrt (ashift X (const_int I)) (const_int I))).

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/simplify-rtx.c


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