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Re: Recent changes to cse.c
- To: Richard dot Earnshaw at arm dot com
- Subject: Re: Recent changes to cse.c
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- Date: Wed, 25 Jul 01 06:21:10 EDT
- Cc: gcc at gcc dot gnu dot org
Why on earth would we want to split a compare and branch if we can't
schedule the insns separately?
It's not that you can *schedule* them separately, but that splitting it
gives more accurate information as to when registers are used and will help
better schedule other insns that interact with those insns.