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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 | \o | 09:46 | |
| nwc10 | o/ | 09:53 | |
| brrt | I have a ... challenge? problem? design question... | 10:00 | |
| The template language specifies a branching operation as a tree of branch -> test -> operands | 10:01 | ||
| (or: operands, test, branch sequence) | |||
| however, in emitting the branch opcode, we kind of need to know whether the opcodes where floating points, or integers | 10:02 | ||
| since x86 sets every so slightly different combinations of flags for floating point and integer register comparison | 10:03 | ||
| (it doesn't matter whether you use SSE or x87 FPU for the oprations, fwiw, although the x87 FPU has special 'internal' branching opcodes as well) | |||
| The design question is to have a nice way, that doesn't break, to transfer the type of the operands 'up' to the branch | 10:05 | ||
| nwc10 | I don't know enough about the current code to be able to answer that. Or even where to start answering it. Acutally | 10:17 | |
| is this the only situation where the parent or grandparent "op" needs to know something from one of its children? | 10:18 | ||
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| timotimo | well, i can't quite believe i actually made this work | 13:38 | |
| now to make it work maybe fast | |||
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| timotimo | 736.15user 3.87system 4:51.73elapsed 253%CPU (0avgtext+0avgdata 1190144maxresident)k | 14:51 | |
| well, that's surely about 2.5x faster than 1x speed | 14:52 | ||
| lizmat | timotimo: and what is now faster ? | 14:57 | |
| timotimo | oh, you know, just some trash | 14:58 | |
| this code will have to be torn to pieces and reassembled into something more usable before it can go into the Moar Heapanalyzer | |||
| it's for reading the heap snapshot format that moar will spit out in the future | |||
| lizmat | aaahhhh more and faster introspection ! | 14:59 | |
| timotimo | well, maybe | 15:00 | |
| at least the files are now much smaller | |||
| er, at least i think they are | 15:01 | ||
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| brrt | nwc10: Not exactly, there's also operand size | 18:09 | |
| that's not exactly relevant to flag operators, so..... | 18:11 | ||
| I smell the potential for reusing a field | |||
| (you're not *really* a C programmer until you've used a field in multiple ways depending on implicit context) | 18:21 | ||
| TimToady hides in pride^Wshame | 18:38 | ||
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| Geth | MoarVM: patzim++ created pull request #1131: Build with spaces in path |
21:58 | |
| patrickb | ^- Not for merge before the release! | 22:10 | |
| AlexDaniel | samcv: speaking of which, how is it going? :) | 22:11 | |
| MasterDuke | didn't github recently announce the concept of 'draft PRs'? | ||
| Kaiepi | yes | 22:43 | |
| i've been using them | |||
| patrickb | I found the respective button. Good to know for next time! | 22:48 | |
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| Kaiepi | they're great for wip pullreqs | 23:26 | |
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