I'm not sure if LegNeato made a Freudian slip, but comment 38 is very suspicious. It's also welcome news in case PPC JM+TI runs aground, because we could probably hack tracejit to work by itself in the ESR if we had to.
Two bits of bad news on methodjit. The first bit of bad news is that type inference requires the CPU to have a square root instruction, and only G5 does. We could emulate this on G3 and G4, but it would be expensive, of course. Assembly jockeys, here's your chance: come up with a routine in assembly to do PPC square root without a lookup table (you can use a couple constants if you like). It doesn't have to be fast because it's going to suck anyway; it just has to work. This routine might give you some ideas. Post your entries to issue 96; the winner gets beer.
Life sucks. More later.