IRA improvements 0/4

[Vladimir Makarov]

Mark Mitchell wrote:
> Vladimir Makarov wrote:
>
>   
>>  The branch was tested on x86/x86_64/ppc64/arm and benchmarked on
>> SPEC2000 and SPEC2006 on x86_64.  For x86_64 SPEC20006 (Core i7) the
>> branch creates smaller size code (about 0.2%), needs less 1 sec for
>> compilation, and generates the same INT score and 1% better FP score.
>>     
>
> Those are great results!
>
> Would you please also post scores from at least one embedded RISC
> architecture, e.g., ARM, MIPS, Power?  Even x86_64 is a bit of a
> different beast from these, and before we merge this in, I think we
> should know what this does elsewhere.
>
>
>   
For ppc64 (G5 machine) I've got more 1% improvement on SPECFP2000 and 
0.3% degradation on SPECINT2000.

I checked SPECInt2000 on ARM (Sheeva plug) about 3 weeks ago and as I 
remember SPECInt2000 score was not worse or even better on the branch.  
Unfortunately, this machine is not available right now 
(gcc56.fsffrance.org).  Otherwise, I could give more detail data.