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Re: egcs-19980803 (pre-1.1) solaris regressions
- To: Toshiyasu Morita <tm at netcom dot com>
- Subject: Re: egcs-19980803 (pre-1.1) solaris regressions
- From: Jeffrey A Law <law at cygnus dot com>
- Date: Tue, 18 Aug 1998 19:07:29 -0600
- cc: egcs-bugs at cygnus dot com, davem at dm dot cobalmicro dot com
- Reply-To: law at cygnus dot com
In message <199808181749.KAA02644@netcom8.netcom.com>you write:
> I suppose it's a matter of perspective whether one regards flow as broken
> or reorg as broken, but from a practical standpoint of long-term code
> maintenance, it seems better to fix one compiler pass (flow) to provide
> accurate information instead of trying to kludge n other compiler passes
> to deal with inaccurate information.
Well, until very recently we didn't even have the option of trying to
I'll go on record now that I would prefer to see the basic block data
structures and such accurate after reload, even if that means we have
to run a mini dataflow analysis or flesh out more of the live range
splitting support code. I think that's cleaner than a mega patch and
magic NOTE_INSN_DELETED notes.
Note that this will not be for egcs-1.1; making this stuff accurate
should happen on the mainline tree.