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Re: [PATCH] Enhance reload_cse_move2add


On 07/07/2010 07:02 PM, Bernd Schmidt wrote:
On 07/02/2010 01:59 PM, Paolo Bonzini wrote:
On 07/02/2010 12:58 PM, Jie Zhang wrote:
168.wupwise            1260       1232       -2.22%
189.lucas              1406       1380       -1.85%

Lucas is insanely dependent on register allocation and scheduling. With -fweb and -frename-registers both disabled at -O2

This reminds me. I committed a number of regrename speedup patches earlier this year - does anyone think it would be a good idea to add that to -O2 now?

Definitely on i686, since it disables pre-regalloc scheduling. You cannot get decent scheduling there without regrename.


Paolo


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