Re: [Qemu-devel] [PATCH 0/8] Improve TCG optimizer

[Aurelien Jarno]

On Thu, Sep 06, 2012 at 09:43:08AM -0700, Richard Henderson wrote:
> On 09/06/2012 08:00 AM, Aurelien Jarno wrote:
> > This patch series improves the TCG optimizer, based on patterns found
> > while executing various guest. The brcond ad setcond constant folding
> > are useful especially useful when they are used to avoid some argument
> > values (e.g. division by 0), and thus can be optimized when this argument
> > is a constant.
> > 
> > This bring around 0.5% improvement on openssl like benchmarks.
> > 
> > Aurelien Jarno (8):
> >   tcg: improve profiler
> >   tcg/optimize: split expression simplification
> >   tcg/optimize: simplify or/xor r, a, 0 cases
> >   tcg/optimize: simplify and r, a, 0 cases
> >   tcg/optimize: simplify shift/rot r, 0, a => movi r, 0 cases
> >   tcg/optimize: swap brcond/setcond arguments when possible
> >   tcg/optimize: add constant folding for setcond
> >   tcg/optimize: add constant folding for brcond
> 
> Patches 1-6,8:
> Reviewed-by: Richard Henderson <address@hidden>
> 
> Patch 7 contains a trivial error.  With that fixed it could
> also bear my Reviewed-by mark.
> 

Thanks for the review.

-- 
Aurelien Jarno                          GPG: 1024D/F1BCDB73
address@hidden                 http://www.aurel32.net