[tree-ssa] Any good sources of documentation?

Diego Novillo dnovillo@redhat.com
Mon May 19 13:40:00 GMT 2003


On Mon, 2003-05-19 at 04:22, Marty Hauff wrote:

> 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.
>
Most documentation is in the source code itself.  There is a high-level
description of the optimization process in the project page
(http://gcc.gnu.org/projects/tree-ssa/).  After the GCC summit next
week, I will post the tree SSA paper and slides in my home page.

> 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.
>
tree-optimize.c:optimize_function_tree()

>   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?)
> 
Both mainline and tree-ssa operate in the same way.  If you use
-funit-at-a-time, then compilation proceeds in call graph order.


Diego.



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