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Re: [RFH] - Less than optimal code compiling 252.eon -O2 for x86
On Mon, Jun 27, 2005 at 12:21:01PM -0700, Fariborz Jahanian wrote:
> FYI, the change to rtl in -O2 vs. -O1 is that -O2 includes -fforce-
> mem which forces memory operands to registers to make memory
> references common sub-expressions.
Hmm. I would suspect this is obsolete now. We'll have forced
everything into "registers" (or something equivalent that we
can work with) during tree optimization. Any CSEs that can be
made should have been made.
r~