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[Bug tree-optimization/71815] SLSR misses several PHI candidate cases
- From: "wschmidt at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 02 Aug 2016 20:45:49 +0000
- Subject: [Bug tree-optimization/71815] SLSR misses several PHI candidate cases
- Auto-submitted: auto-generated
- References: <bug-71815-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71815
--- Comment #6 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Actually, it looks like a similar problem for the unknown stride case. Again
there is logic that relies on single-reached-use for determining what
expressions go dead. We need to factor in expressions that go dead conditional
on other expressions going dead. I'll work on a solution.