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Re: question regarding regrename and failure of 950704-1.c on main
- From: "John David Anglin" <dave at hiauly1 dot hia dot nrc dot ca>
- To: law at redhat dot com
- Cc: rth at redhat dot com, gcc at gcc dot gnu dot org
- Date: Fri, 10 May 2002 15:19:56 -0400 (EDT)
- Subject: Re: question regarding regrename and failure of 950704-1.c on main
> Normally a DImode value on the PA has the most significant word in an even
> register (N) and the least significant word in an odd register(N+1). This
> is how all the arithmetic works and this is also how DImode values are
> returned.
I have looked through the machine definition and haven't found any
patterns that require the most significant word of a DImode value
to be in an even register general register. There is no change
to the placement in floating registers. Have I missed some operation
that requires the most significant word to be in an even register?
Dave
--
J. David Anglin dave.anglin@nrc.ca
National Research Council of Canada (613) 990-0752 (FAX: 952-6605)