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Re: K6 and decoding bottleneck
- To: Jan Hubicka <hubicka at atrey dot karlin dot mff dot cuni dot cz>
- Subject: Re: K6 and decoding bottleneck
- From: Jeffrey A Law <law at cygnus dot com>
- Date: Wed, 18 Nov 1998 12:30:34 -0700
- cc: John Wehle <john at feith dot com>, Joern Rennecke <amylaar at cygnus dot co dot uk>, egcs at cygnus dot com
- Reply-To: law at cygnus dot com
In message <19981113203737.06643@atrey.karlin.mff.cuni.cz>you write:
> This should be solved by extending define_function_unit syntax
> to let define rules saying, that given insn executes eigther in
> one or other unit. I would like to implement this in future, because
> I've seed similar behaviour at many CPUs (Pentium, PentiumPro, K6, M-II
> and UltraSparc)
Please do not do this. We've already got too many patches from you to
evaluate. We need to get them addressed before you start down this road.
Jeff
There may also be a new way to describe scheduling characteristics
coming down the pipe.