[mips-tls] A couple of potential changes to the MIPS TLS ABI

[Mark Mitchell]

Daniel Jacobowitz wrote:

> I don't think it's worthwhile, since it doesn't hedge bets very well. 
> An alternative sequence could easily turn out to be more than one
> instruction, but still faster than a trap.

(I was thinking that thus far all the sequences seem to have been 
single-instruction; the options thus far seem to have been "rhdwr", "lw 
$x, 0x1000($0)", and some other reserved-instruction sequence.)

Anyhow, there goes my attempt at cutting through this particular Gordion 
knot. :-)

Thanks,

-- 
Mark Mitchell
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