[M3commit] CVS Update: cm3

[Jay K]

diff attached

 

> Date: Sat, 6 Mar 2010 13:38:38 +0000
> To: m3commit

> From: jkrell
> Subject: [M3commit] CVS Update: cm3
> 
> CVSROOT: /usr/cvs
> Changes by: jkrell at birch. 10/03/06 13:38:38
> 
> Modified files:
> cm3/m3-sys/m3back/src/: M3x86.m3 Stackx86.i3 Stackx86.m3 
> 
> Log message:
> some cleanup ahead of other fixes (the free_temp problem)
> 
> in particular:
> - replace RegSet{} with AllRegisters
> This makes some code a little simpler.
> RegSet{} does mean "anything" and we can
> capture that pretty faithfully via AllRegisters.
> We are lucky we don't have to allocate float registers though,
> that might call for something a little different
> 
> - in some places I was extra cautious and ran
> the same old code for size = 1 (data fitting in a single register),
> as well there are places that assume the largest size is 2
> Generalize *some* of that to loop over whatever size, doing
> the "same" thing at each step.
> 
> There are still places that say like "if foo[0] and foo[size - 1]"
> which works as long as size can only be 1 or 2.
> 
> - fix warning about unreachable code after assert false (the unused,
> untested zero_n)
> 

 		 	   		  
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