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github.com/moarvm/moarvm | IRC logs at colabti.org/irclogger/irclogger_logs/moarvm Set by AlexDaniel on 12 June 2018. |
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| brrt | ohai #moarvm | 16:36 | |
| Have I said that register allocation is not my favorite problem? | 16:48 | ||
| samcv | i believe so :) | 16:49 | |
| brrt | well.. | ||
| it still isn't :-) | |||
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| brrt | and I'm not convinced that there's much I can actually learn from luajit's allocator | 16:58 | |
| maybe register hints | |||
| the register allocator and machine code emitter are totally fused | 17:01 | ||
| and the luajit IR appears to be designed to be emitted efficiently | 17:02 | ||
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| masak | brrt: did you see the Wikipedia section saying that linear scanning does a decent job? | 17:26 | |
| (my guess is you did, and you're already way beyond that point) | |||
| timotimo | i think i heard him point that out in the past | 17:27 | |
| masak | maybe "decent" is the wrong word. more like "interesting speed/quality ratio" | ||
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| timotimo | i think right now this is less the general problem and more making sure the x86 processor is also sufficiently satisfied with what you do | 17:27 | |
| since brrt's currently working on getting floating point stuff into the jit | 17:28 | ||
| masak | oh! | 17:29 | |
| well, first off, brrt++ | 17:30 | ||
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| brrt | ohai masak. Yes, floating point support is work in progress. (And somewhat works, but there's corner cases in which it doesn't). | 18:52 | |
| what I'm trying to figure out is if there's a way in which I can do the same, but with less corner cases | |||
| my preliminary findings are that if that's possible, luajit doesn't have it, but it does have some other ideas | |||
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