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Re: Recent changes to cse.c
- To: law at redhat dot com
- Subject: Re: Recent changes to cse.c
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- Date: Wed, 25 Jul 01 10:22:47 EDT
- Cc: gcc at gcc dot gnu dot org
Remember, scheduling happens before dbranch, so the compare and branch
*must* be consecutive on a HAVE_cc0 target, no exceptions.
That's what I said, but the point is that having them as separate
insns tells more about how to schedule the *surrounding* insns. I
admit it's not a major point, but it has the potential to save a cyle
or two in some cases.