Diego Novillo wrote:
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.
"Unsafe" doesn't mean not fixed. My thought is that it would be nice to
have a switch in aliasing that will turn such operations as
join (pt_anything, points_to) -> pt_anything
into
join (pt_anything, points_to) -> points_to
This transformation will sacrifice correctness for sake of additional
information.
Thanks,
Maxim
