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gcc register allocation
- From: "danish samad" <danish081 at hotmail dot com>
- To: gcc at gcc dot gnu dot org
- Date: Fri, 31 May 2002 10:05:25 +0500
- Subject: gcc register allocation
- Bcc:
hello,
Say I have two register banks, a lower bank and an upper bank containing any
number of registers. I want to allocate registers such that for an operation
say addition:
Upper bank register = Lower bank register + Upper bank register
I tried making seperate classes for both banks but that doesnt seem to work
and changing the register allocation order doesnt seem to be a good idea
since that does not take care of all cases. What should be done,any
suggestions?
regards,
danish
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