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Re: [x86,PATCH] Simple performance tuning for SLM.


On Tue, Sep 10, 2013 at 4:56 PM, Yuri Rumyantsev <ysrumyan@gmail.com> wrote:

> Here is a simple fix which improves SLM performance by avoiding memory
> operand in conditional move instructions. Our measurements have shown
> significant speedup (~+10%) for routelookup bench from eembc2.0 suite.
>
> Bootstrapping and regression testing were successful for x86-64.
>
> Is it OK for trunk?
>
> ChangeLog:
>
> 2013-09-10  Yuri Rumyantsev  <ysrumyan@gmail.com>
>
> * config/i386/x86-tune.def: Turn on X86_TUNE_AVOID_MEM_OPND_FOR_CMOVE
> for SLM.

OK.

Thanks,
Uros.


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