This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: Some thoughts and quetsions about the data flow infrastracture
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- To: zadeck at naturalbridge dot com
- Cc: gcc-patches at gcc dot gnu dot org, iant at google dot com, seongbae dot park at gmail dot com, vmakarov at redhat dot com
- Date: Wed, 14 Feb 2007 08:43:45 EST
- Subject: Re: Some thoughts and quetsions about the data flow infrastracture
- References: <45D0CF0D.3010708@redhat.com> <45D0D621.9060602@codesourcery.com> <45D13DB1.1020601@redhat.com> <45D14269.5050901@codesourcery.com> <45D1E67D.2090501@redhat.com> <571f6b510702130911m18e9dd00j18a522be5192735a@mail.gmail.com> <45D20FFC.7000906@redhat.com> <ab3a61990702131309q662e59c8y623d690cf767e26f@mail.gmail.com> <45D22DB8.5020102@redhat.com> <ab3a61990702131342s709d18e4id994c64e5a47fded@mail.gmail.com> <45D23F9F.4070409@naturalbridge.com>
> 2) the style of changing rtl will have to change even more. People are
> used to just going in and doing a little trim here and a touch there.
> Having the refs hang off the leaves when people do this is more tricky
> than what we have now.
Did you mean "chaining" in the first line?
If so, I agree. I think it's probably too difficult a project to make
major changes in the format of RTL *expressions*, but certainly I view
the format of insns as "fair game" for being changed as part of the DF
work since they basiclly contain DF information!