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Re: Why can't CSE recognize const_int's in HIGH LO_SUM pair?
- To: law at redhat dot com
- Subject: Re: Why can't CSE recognize const_int's in HIGH LO_SUM pair?
- From: "John David Anglin" <dave at hiauly1 dot hia dot nrc dot ca>
- Date: Mon, 24 Sep 2001 13:19:39 -0400 (EDT)
- Cc: rth at redhat dot com, bernds at redhat dot com, gcc at gcc dot gnu dot org
> Another approach is to allow all constants in compare/branch insns initially,
> then use define_splits and friends to lower to the actual capabilities of
> the chip later.
Ths could be the best approach but my first impression was that it
was likely more work to implement.
Dave
--
J. David Anglin dave.anglin@nrc.ca
National Research Council of Canada (613) 990-0752 (FAX: 952-6605)