[Bug tree-optimization/49452] [4.7 regression] comp-goto-2.c regresses in testing

[eraman at google dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49452

--- Comment #12 from Easwaran Raman <eraman at google dot com> 2011-07-14 17:16:06 UTC ---
(In reply to comment #11)
> I have confirmed that the -Os failures began with r175063 and that the tests
> pass for several revision before that and pass for several after, so it's
> unlikely to be an intermittent failure.  If it would help I can send dump files
> for r175063 and the one just before that.

It is possible that the second DSE invocation deletes a necessary store. My
understanding was that it only acts on spilled stores and all my changes are in
the _nospill version, but that seems not to be the case. Could you send me all
the RTL dumps with and without this patch as a tar file? That will be very
useful in narrowing it down.

Thanks,
Easwaran