[PATCH] fix out of bound access on hard_regno_nregs

[James E Wilson]

Martin Koegler wrote:
> -      if (val.start < 0)
> +      if (val.start < 0 || val.start >= FIRST_PSEUDO_REGISTER)

I've tested the patch on a ppc-darwin machine, with a bootstrap and make 
check.  There were no regressions.  I got a lot of linker warnings for 
the C++ tests which caused a lot of failures with and without the patch, 
but there were no apparent real problems, and java worked OK, so I think 
this was a good enough test, especially for such a simple patch.

For the record, the patch I checked in is attached.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com
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