Disregard, this was just me being silly.
Cheers,
Edward
Excerpts from Edward Z. Yang's message of Sat Feb 19 11:36:28 -0500 2011:
> I have the following tail call from the old code generator that
> uses R2 despite this being i686 (which only has one vanilla
> register.)
>
> so0_ret()
> { [const 3;, const 32;]
> }
> cqR:
> _cqS::I32 = R1 & 3;
> if (_cqS::I32 >= 2) goto cqT;
> R1 = I32[Sp + 12];
> Sp = Sp + 16;
> R1 = R1 & (-4);
> jump I32[R1] ();
> cqT:
> R2 = I32[Sp + 4];
> I32[Sp - 4] = I32[Sp + 8];
> I32[Sp + 0] = so3_info;
> Sp = Sp - 4;
> jump mergePairs_smo_info ();
> }
>
> I'm trying to determine where it came from, but it looks like
> CgTailCall is a good citizen and uses real registers.
>
> Cheers,
> Edward
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