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[Bug tree-optimization/23455] tree load PRE is not working for global variables
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 6 Jul 2008 08:53:05 -0000
- Subject: [Bug tree-optimization/23455] tree load PRE is not working for global variables
- References: <bug-23455-7849@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #15 from steven at gcc dot gnu dot org 2008-07-06 08:53 -------
Patch here:
http://gcc.gnu.org/ml/gcc-patches/2008-07/msg00430.html
We should re-evaluate the need for gcse.c load-PRE after Daniel's patch goes
in. The last time I looked at what loads gcse.c load-PRE would move, it only
touched loads from globals, so it may be a redundant pass when tree-ssa-pre
moves them.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23455