[RFA] MIPS: MIPS_LAST_FP_ARG_REGNUM, MIPS_LAST_ARG_REGNUM changes

[Kevin Buettner]

On May 21, 12:17pm, Andrew Cagney wrote:

> > This is patch 2 of many more to come.  It depends upon
> > http://sources.redhat.com/ml/gdb-patches/2003-05/msg00268.html.
> > 
> > Okay?
> 
> Per my earlier comment, I don't think this one is right.  I don't think 
> things like LAST_ARG_REGNUM belong in that cooked/raw reg structure. 
> Instead, they should exist out side it.
> 
> If the code really wants to differentiate between the raw and cooked 
> register number, why not use the more explicit:
> 
> 	rawnum->gp0_regnum + tdep->last_arg_regnum

So, last_arg_regnum represents a count of the number of argument
registers?

That's fine (at the moment anyway) for the GPRs, but it doesn't work
for the FPRs.  For o32, I have things arranged so that there are a
total of 16 cooked FPRs and 32 raw FPRs.  Therefore, argument register
counts will be different between cooked vs raw.  IMO, it really does
make sense to put these values into the cooked/raw structure.  I'm
having difficulty understanding why you're objecting to this layout.

Kevin