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Re: Register VM WIP
From: |
Mark H Weaver |
Subject: |
Re: Register VM WIP |
Date: |
Wed, 16 May 2012 00:23:36 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.92 (gnu/linux) |
Noah Lavine <address@hidden> writes:
>>> The register based VMs I've seen ignore this issue by allowing for an
>>> infinite set of registers. :)
>>
>> Indeed, that's the plan :) The first shot at an allocator will look a
>> lot like the one in (language tree-il analyze).
>
> That was a bit surprising to me. Do you mean that the register pool
> will grow and shrink for each function call? Is that why the stack
> frames can be fixed-size?
It's surprising to me for another reason: in order to make the
instructions reasonably compact, only a limited number of bits are
available in each instruction to specify which registers to use.
Mark
- Register VM WIP, Andy Wingo, 2012/05/11
- Re: Register VM WIP, Stefan Israelsson Tampe, 2012/05/11
- Re: Register VM WIP, Ludovic Courtès, 2012/05/14
- Re: Register VM WIP, Andrew Gwozdziewycz, 2012/05/14
- Re: Register VM WIP, Andy Wingo, 2012/05/15
- Re: Register VM WIP, Noah Lavine, 2012/05/15
- Re: Register VM WIP,
Mark H Weaver <=
- Re: Register VM WIP, Andy Wingo, 2012/05/16
- Re: Register VM WIP, Mark H Weaver, 2012/05/16
- Re: Register VM WIP, David Kastrup, 2012/05/16
- Re: Register VM WIP, Noah Lavine, 2012/05/16
- Re: Register VM WIP, Andy Wingo, 2012/05/16
- Re: Register VM WIP, Ludovic Courtès, 2012/05/16
- Re: Register VM WIP, Andy Wingo, 2012/05/16
- Re: Register VM WIP, Mark H Weaver, 2012/05/16
- Re: Register VM WIP, Andy Wingo, 2012/05/16
- Re: Register VM WIP, Noah Lavine, 2012/05/16