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Re: Segment registers support for i386
- From: "RÃmy Saissy" <remy dot saissy at gmail dot com>
- To: rridge at csclub dot uwaterloo dot ca, gcc at gcc dot gnu dot org
- Date: Fri, 2 Jun 2006 09:48:59 +0800
- Subject: Re: Segment registers support for i386
Remy Saissy wrote:
I've looked for a target specific callback to modify but I've found
nothing, even in the gcc internals info pages. Do you mean I would
have to modify some code outside of the i386 directory ? Or maybe to
add such a callback if it doesn't exist ;)
You'ld have to modify code in the main GCC directory, probably a lot
of code. Since it's target dependent, you'ld need to implement it using
a hook or hooks.
In which file does the tree to RTL conversion code is located ?
There are several files that do this jobs. See the internals
Does it mean that an RTL expression which use reg: force gcc to use a
particular pseudo register ?
Pseudo registers aren't real registers. They either get changed to real
hard registers, or memory references to stack slots. See the internals
documentation for more details.
Thanks a lot for your help, I'm going to see what I can do and if I
don't give up now ;)
Have a great day.
RÃmy Saissy JabberID: email@example.com
"L'homme qui a le plus vÃcu n'est pas celui qui a comptÃ le plus d'annÃes,
mais celui qui a le plus senti la vie."
J.-J. Rousseau, Emile.