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| brrt | good moarning | 07:29 | |
| dalek | arVM/even-moar-jit: 751ce63 | brrt++ | src/jit/ (3 files): Add ctxcode instruction template and some macros |
08:11 | |
| arVM/even-moar-jit: f3e0e25 | brrt++ | src/ (6 files): Replace explicit JIT function return frame check This greatly simplifies the JIT compiler driver and jump-out logic. MVM_frame_try_return is now called within the JIT-compiled code. |
09:11 | ||
| arVM/even-moar-jit: a1301bf | brrt++ | src/jit/core.expr: Implement return_o and return as expr templates |
09:33 | ||
| brrt | hmm, dynasm, y u so ugly | 10:05 | |
| hmm, ok, i think i have the optrexes at the right place | 10:23 | ||
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| dalek | arVM/even-moar-jit: 4013032 | brrt++ | 3rdparty/dynasm: Updated dynasm for full register addressing Sub-qword instructions typically only emit a REX byte when using extended registers, so in case of variable registers, this adds a facility to detect the necessity of a REX byte and emits one if necessry; actual REX byte encoding is shared with the facility implemented earlier. |
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| brrt | for those few people that care, this means we can address all registers large and small, dynamically | 16:39 | |
| which is awesome because small values prop up in rather more places than i had initially expected | 16:40 | ||
| timotimo | very cool! | 16:43 | |
| brrt | there are two things next on the list | ||
| value size propagation | |||
| lizmat | brrt++ | ||
| timotimo | but are we interested in adressing registers as smaller than they are? | ||
| brrt | and store adding | ||
| no | |||
| timotimo | would we use two halves of a register as two separate registers? | ||
| brrt | yes and no, and the yes is mostly uninteresting | 16:44 | |
| timotimo | right, so ... why do you call that awesome? :) | ||
| brrt | well, because operand sizes smaller than 8 bytes occur really often | 16:45 | |
| easily half of all we do is fiddling with interpreter internals | |||
| interpreter internal structures are not all nicely 8-byte sized values | |||
| so, i guess, we are interested in addressing 'small' registers | 16:46 | ||
| not having this would've cost me a lot of complexity in the register allocator | |||
| i now no longer need to take the the size into account | |||
| of the register i wish to use | 16:47 | ||
| timotimo | oh, OK | ||
| brrt | and, at the same time, if i have to convert a condition code to a flag value (e.g .setnz, sete, setlt, etc), then i'm addressing a single byte, too | ||
| so, its not about addressing them as smaller than they are, just as large as they should be :-) | 16:49 | ||
| i'm afk for tonight | 16:51 | ||
| see you tomorrow! | |||
| timotimo | mhm | 16:57 | |
| see you then :) | |||
| have a good sunday | |||
| (not that you can read that right now) | 16:58 | ||
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