-floop-optimize2

[Andrew Pinski]

On Jun 21, 2005, at 12:08 PM, Scott Robert Ladd wrote:

> I've noticed that -floop-optimize2 tends to be a pessimism on many
> algorithms.

What version of GCC, if not the mainline, we don't care that much as
the new tree based loop and rtl based loop (-floop-optimize2) optimizers
don't implement as much as the old one did.  And -floop-optimize2 turns
off the old one.  Also the loop optimizers are still in development like
the rest of GCC.

> Is -floop-optimize2 still in development, and not ready yet -- or are
> the problems I'm seeing something that should be analyzed and reported
> as a bug?

Really -floop-optimize2 turns off the old non CFG RTL based loop 
optimizers
and nothing more.

-- Pinski