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Re: [PATCH] Optimize nested SIGN_EXTENDs/ZERO_EXTENDs (PR target/45336)


On 08/20/2010 06:50 AM, Jakub Jelinek wrote:
> 2010-08-20  Jakub Jelinek  <jakub@redhat.com>
> 	    Paolo Bonzini  <bonzini@gnu.org>
> 
> 	* 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))).

Ok.


r~


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