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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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| timotimo | random discovery of the day: circumfix:<[ ]> from github.com/rakudo/rakudo/blob/mast...pm6#L6-L28 has a takeclosure + capturelex that even in the "before" bytecode isn't used. it points at line 15, which is "BEGIN nqp::getcurhllsym('default_cont_spec')". this prevents inlining, and I wonder if that causes lots of stuff not to be inlined all over the place; anything that has | 03:25 | |
| p6scalarwithvalue that uses BEGIN to get at the default_cont_spec, in particular | |||
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| Geth | MoarVM: c130b7cdb4 | (Bart Wiegmans)++ | tools/jit-bisect.pl [jit-bisect.pl] Give a --nodelay flag So we can run with --nodelay and get more reliable answers |
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| brrt | \o | 08:43 | |
| yoleaux | 15 Nov 2018 20:16Z <nine> brrt: scratch that idea of JITing while interp shutdown. We don't reach the end of MVM_interp_run and not even the FUDGED! message in t/spec/S06-advanced/callframe.rakudo.moar. But in all cases, we finish all tests. | ||
| brrt | ah, that's another one than t/02-rakudo/12-proto-arity-count.t | 08:44 | |
| hmm, i'm getting JIT ERROR: Negative offset as well | 08:56 | ||
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| jnthn | timotimo: Hmm, that sounds a bit sub-optimial indeed...I guess it's an artefact of the BEGIN thunk, but we really don't need it by runtime | 09:49 | |
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| brrt | so. the expression type as assigned is normal enough, it is the node type which is negative that is weird | 10:19 | |
| oh, that wasn't actually so bad | 10:24 | ||
| we're being decently careless about signed/unsigned register types | 10:27 | ||
| Geth | MoarVM: dd27d548a6 | (Bart Wiegmans)++ | 3 files [JIT] Fix signedness issues - MVMOpInfo.operands are unsigned chars, and correctness in reading the mask depends on that, oops - Register allocator doesn't care about signedness (doesn't matter one bit for storage), so the same-register-type assertion can ignore the upper nibble. |
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| brrt | now you can all hate me a bit less again | ||
| dogbert11 | brrt++ | 10:59 | |
| timotimo | i'm not sure i'm metaphysically capable of hating you any less, brrt | 11:00 | |
| brrt | hehe | 11:03 | |
| well, you can hate the JIT a bit less then :-) | |||
| lizmat | so, should we do a bump ? | ||
| brrt | hmm | ||
| we might. But there's a bunch of branches I want to get in as well. And there's another issue that nwc10 reported that I think is something different | 11:06 | ||
| dogbert11 | I do see a strange failure when running with MVM_SPESH_NODELAY=1 and MVM_SPESH_BLOCKING=1 | 11:23 | |
| 'Too few positionals passed; expected 2 to 59464 arguments but got 0' | 11:24 | ||
| e.g. MVM_SPESH_NODELAY=1 MVM_SPESH_BLOCKING=1 ./perl6 t/spec/S06-multi/value-based.t | 11:28 | ||
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| brrt | dogbert11: I have no idea about that | 12:59 | |
| dogbert11 | brrt: it does disappear with MVM_JIT_DISABLE=1 perhaps I should try a bisect | 13:05 | |
| timotimo | does disabling only the exprjit also help? | 13:06 | |
| dogbert11 | timotimo: yes it does disappear | 13:09 | |
| brrt | hmmm | ||
| alright | |||
| timotimo | then jit bisect could helep | ||
| dogbert11 | have run the bisect three times, it always complains about the same frame (3226) | 13:10 | |
| the generated file is here: gist.github.com/dogbert17/e4bb34ba...3e1054ec47 | 13:11 | ||
| brrt | hmm, that's suspicious | 13:13 | |
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| dogbert11 | heh, another SEGV, Program terminated with signal SIGSEGV, Segmentation fault. | 16:20 | |
| #0 MVM_spesh_stats_gc_mark (tc=tc@entry=0xfa66d0, ss=0x7f1c8010df80, worklist=worklist@entry=0x1115e80) at src/spesh/stats.c:671 | |||
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