[PATCH, Atom] Fix performance regression with -mtune=atom
Fri Oct 14 14:49:00 GMT 2011
Could anyone checkin that?
2011/10/14 Uros Bizjak <firstname.lastname@example.org>:
>> This is a ping. Change affects Atom only and was made because it
>> really gives better performance on this architecture. This fact
>> actually leads to the thought that old value is just a simple
>> > This patch fixes performance regression with -mtune=atom. Changing
>> > atom cost removes regression in several tests of EEMBC and spec2000.
>> > Bootstrap amd make check Ok for both with and witout -mtune-atom.
>> > OK for trunk?
>> > 2011-09-30 ?Yakovlev Vladimir ?email@example.com
>> > ? ? ?* gcc/config/i386/i386.c (atom_cost): Changed cost for loading
>> > ? ? ? QImode using movzbl.
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