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[Bug tree-optimization/23940] SSA_NAMEs are not released after no longer being used.
- From: "amacleod at redhat dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 19 Sep 2005 14:03:17 -0000
- Subject: [Bug tree-optimization/23940] SSA_NAMEs are not released after no longer being used.
- References: <20050918005013.23940.pinskia@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- 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