[tree-ssa] Any good sources of documentation?

[Marty Hauff]

Dear all,

I'm trying to find out how the tree-ssa branch performs its compilation and optimisation.  I've found the doxygen stuff on the web but I need something a bit higher level at this stage.  For some reason I can't get anything to read or process the texi files properly.

Specifically I am looking to find a point during compilation where the most optimisation has been done PRIOR to target specific processing having been started.  The main gcc branch is no good to me because it only does things on a function by function basis.  According to the docs, tree-ssa processes the whole source _before_ generating rtl etc. (or have I got this wrong?)

Any help would be much appreciated
Marty Moose