[Bug target/50962] Additional opportunity for AGU stall avoidance optimization for Atom processor

[enkovich.gnu at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50962

Ilya Enkovich <enkovich.gnu at gmail dot com> changed:

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--- Comment #3 from Ilya Enkovich <enkovich.gnu at gmail dot com> 2011-11-02 13:06:07 UTC ---
Current optimization use only splits to transform arithmetic into lea and vice
versa. It does not work for move because corresponding lea template will be
equal. We can check if lea is required during instruction emit. 

I have a patch to fix it. Bootstrap and make check passed. I'm currently
checking performance changes.