Improvements of the haifa scheduler

[Diego Novillo]

Maxim Kuvyrkov wrote on 03/05/07 02:14:

>    o Fix passes that invalidate tree-ssa alias export.

Yes, this should be good and shouldn't need a lot of work.

>    o { Fast but unsafe Gupta's aliasing patch, Unsafe tree-ssa alias 
> export } in scheduler's data speculation.

"unsafe" alias export?  I would definitely like to see the tree->rtl
alias information transfer fixed once and for all.  Finishing RAS's
tree->rtl work would probably make a good SoC project.