[Bug tree-optimization/23940] SSA_NAMEs are not released after no longer being used.

[amacleod at redhat dot com]

------- Additional Comments From amacleod at redhat dot com  2005-09-19 14:03 -------
I thought there was a discussion in 

http://gcc.gnu.org/ml/gcc/2005-08/msg00692.html

where the solution for dealing with releasing ssa names now that we have
immediate use data available all the time is to simply add a lightning fast pass
which removes unused ssa_names by zipping through the ssa_name table and
releasing any which have no uses. 

I dont see much point in continuing to find places and add calls to release_defs
when we can simply fix it for once and for all.

we can add it as a pass, or simply as a TODO flag.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23940