[tree-ssa] Merge status

[Richard Guenther]

Paolo Bonzini wrote:
>>For SPEC2000int, the branch is 2% behind mainline on x86.  For
>>SPEC2000fp, the branch is 0.4% ahead.  I will post x86-64 resuts soon.
> 
> 
> Are the performance problems on SPEC2000int (and the improvements in
> SPEC2000fp) concentrated in a single test?
> 
> 
>>Currently, bootstrap times on the branch are 14% slower than mainline
>>[...] Work is underway to remove some RTL passes

I once did experiments removing all gcse passes (-fno-gcse -fno-gcse-lm 
-fno-gcse-sm) and got no changes in resulting performance for the POOMA 
based applications.

Richard.