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Re: compile-rtl, II

From: Andy Wingo
Subject: Re: compile-rtl, II
Date: Mon, 21 Jan 2013 18:39:18 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.2 (gnu/linux)

On Mon 15 Oct 2012 16:05, Stefan Israelsson Tampe <address@hidden> writes:

> (arg1, return-address, old-frame, program, arg2 ...)
> This way we do not need to copy the program field at a tail call

What would you do for 0 arguments?

> Also another kind of difficulty will arise, many instructions only
> take a value of 256 register positions

Do you have examples?  I think the idea I had in mind was to reserve the
last two or three of the 8-bit-addressable registers as temporaries, and
emit long-mov shuffles to handle those cases.


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