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Re: [PowerPC] PR26459 again
On Thu, Mar 30, 2006 at 04:50:32PM -0500, David Edelsohn wrote:
> What bothers me about this change is that it converts a test that
> does not need to call reg_classes_intersect_p() into one that does. This
> seems to be slowing down the common case for no good reason. The first
> test does not just cover floating point modes but integer modes as well.
> That shortcut seems to have disappeared in your change.
Well, we do need an extra call for TARGET_E500_DOUBLE and TARGET_SPE
of course. After all, removing the "shortcut" in that case was the
whole point of the change! I assume you're not talking about that.
However, I can't see any other case where reg_classes_intersect_p is
called now where it previously wasn't.
--
Alan Modra
IBM OzLabs - Linux Technology Centre