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Perl 6 language and compiler development | Logs at colabti.org/irclogger/irclogger_log/perl6-dev | For toolchain/installation stuff see #perl6-toolchain | For MoarVM see #moarvm Set by Zoffix on 27 July 2018. |
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| SqrtNegInf | m: my $a = ('a' x 200).comb; $a ~~ s:g/<ws>// | 12:08 | |
| camelia | JIT ERROR: Negative offset for dynamic label 32 JIT ERROR: Negative offset for dynamic label 32 |
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| SqrtNegInf | Seeing this in a number of programs since yesterday (currently running build 2018.09-70-gab83b9d82) | 12:10 | |
| Not a fatal error, but disconcerting... | |||
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| jnthn | SqrtNegInf: Already reported and being investigated | 12:11 | |
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| jnthn | Thanks for the nice short example, though; I think that may be shorter than the previous repro | 12:13 | |
| brrt | SqrtNegInf: this was previously a more silent warning. Agreed that it isn't good, which is why the warning is now more noisy | 12:14 | |
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| Geth | roast: MorayJ++ created pull request #479: Fix typo |
12:32 | |
| roast: 6c77d3cc82 | MorayJ++ | S17-supply/syntax.t Fix typo Whatever changed to whenever |
12:37 | ||
| roast: dc6e79622a | (Elizabeth Mattijsen)++ (committed using GitHub Web editor) | S17-supply/syntax.t Merge pull request #479 from MorayJ/typo Fix typo |
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| rakudo: tbrowder self-assigned implement pod config V<#> for :numbered alias override github.com/rakudo/rakudo/issues/2339 107477b41a | (Jonathan Worthington)++ | src/core/Array.pm6 We don't need to set the value of a Scalar to its default if we're immediately going to assign to it. Sure this is the slow path, but we might as well make it a bit faster where possible. |
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| dogbert2 | jnthn: are you on an optimizing spree again :) | 13:38 | |
| jnthn | Actually having a look at github.com/MoarVM/MoarVM/issues/975 first | 13:43 | |
| dogbert2 | cool | 13:46 | |
| jnthn | OSR issue, it seems :S | 13:47 | |
| dogbert2 | difficult? | 13:52 | |
| jnthn | Well, it gets stranger: it only SEGVs sometimes and at the spesh limit where it seems to start | 13:54 | |
| *start doing so | |||
| But that isn't for something doing OSR | |||
| It's actually the specialization of bless | |||
| dogbert2 | it doesn't have anything to do with github.com/MoarVM/MoarVM/issues/782 I guess | 13:55 | |
| jnthn | And of course, under GDB it doesn't at all | 13:56 | |
| dogbert2 | hmm | ||
| jnthn | No | ||
| jnthn tries a debug/asan build | 13:57 | ||
| bah, that only found me a leak :P | 13:59 | ||
| dogbert2 | I still get it, same as in the report, i.e. static_frame=0x0 (running on 32 bit atm) | ||
| jnthn | It's odd, I get it reliably if I remove the spesh limit | 14:00 | |
| dogbert2 | in gdb as well? | 14:01 | |
| jnthn | Probably, got an ASAN trace | 14:03 | |
| lizmat | commute to Amsterdam.PM | 14:05 | |
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| jnthn | It's a bit odd....it's the fastinvoke that is blowing up | 14:09 | |
| I wonder where it gets its code object from... | |||
| Yeah, null static frame | 14:11 | ||
| The code object is happily in gen2, so it's not some nursery oddness | 14:15 | ||
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| Geth | rakudo/js: 232454ab56 | (PaweÅ Murias)++ | 3 files [js] Use less intrusive #?js: NFG comment instead of #?if js...#?endif |
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| dogbert2 | jnthn: so it's still a mystery | 14:21 | |
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| jnthn | Yeah...very much so | 14:22 | |
| However, the pieces do fit together somewhat | |||
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| dogbert2 | what about the connection to the bisected commit? | 14:23 | |
| jnthn | In so far as we're in the specialized `bless` that the spesh bissect pointed to | ||
| As the point we SEGV | |||
| So the pieces go together...I just dunno what's happening :) | |||
| dogbert2 | have you managed to catch it in gdb yet? | 14:26 | |
| jnthn | Yeah | 14:27 | |
| dogbert2 | but it doesn't help ... | 14:28 | |
| jnthn | Well, it confirms we're in the specialized bless when it goes wrong | ||
| Oh my... | 14:32 | ||
| fastinvoke is meant to be passed a VM-level code ref | 14:33 | ||
| But instead it's being passed a high level code object...but it just indexes it as if it were the VM-level code ref | 14:34 | ||
| So the NULL static_frame is actually the empty mixin slot for a P6opaque | |||
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| jnthn | Next question: what on earth does it think it's doing... :) | 14:34 | |
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| travis-ci | Rakudo build failed. Jonathan Worthington 'Do a little less work in ASSIGN_POS_SLOW_PATH | 14:38 | |
| travis-ci.org/rakudo/rakudo/builds/436144364 github.com/rakudo/rakudo/compare/a...7477b41afd | |||
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| buggable | [travis build above] ā All failures are due to: failed make test (6 failures). Across all jobs, 2 unique test files failed. | 14:38 | |
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| dogbert2 | sounds like you're getting close to a solution | 14:40 | |
| jnthn | I have a fix, I just want to understand how the situation happens. | 14:41 | |
| ahh...think I found a logic error | 14:46 | ||
| Yeah, better, it seems | 14:48 | ||
| dogbert2 | big thinko or cut and paste error? | 14:53 | |
| jnthn | Thinko, but oddly quite a long time ago | 14:54 | |
| Surprised it took this long for it to crop up | |||
| dogbert2 | is it a code path which hasn't been used then | 14:55 | |
| jnthn | Apparently not much :) | 14:56 | |
| OK, now I can get back to optimizing :P | |||
| dogbert2 | yay | ||
| who knows, you might have fixed other bugs as well with this fix | 14:58 | ||
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| Geth | nqp: 86362f5c3c | tison++ | 21 files src whitespace |
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| nqp: 8e9b97f945 | tison++ | 94 files *.t even not executable, use prove to test |
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| nqp: 28b043db7e | tison++ | t/nqp/063-slurp.t 063-slurp should depend on a stable file |
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| nqp: 29228d394b | tison++ | t/nqp/046-charspec.t nqp-p not support now, re-enable test |
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| lizmat | jnthn: have you considered just assigning the default values in object creation, and then let any specification overwrite that ? | 16:00 | |
| jnthn | No, because the default value might not be a value :) | 16:02 | |
| It might be a computation, which might cost something or (horrors) have side-effects | 16:03 | ||
| lizmat | ah, ok, yeah, right | ||
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| lizmat | jnthn: how about an integer that serves as a bitmap to mark values being set, and each attribute having an offset | 16:07 | |
| jnthn | Yeah, but how do you know when it's being set? | 16:08 | |
| lizmat | generate it in the QAST to (re)set that bit | ||
| basically: at compile time generate a bitmap with all bits set of attributes that have default values | |||
| jnthn | On every attribute bind, given BUILD could potentially call any method? Or static analysis to cope with that? | 16:09 | |
| And just try and transform the methods that need it? | |||
| lizmat | ah, yes, BUILD :-( | ||
| jnthn | (This could potentially work, until somebody is too clever for their own good, I guess :)) | ||
| We do absolutely forbid any attribute access from outside of the class though | 16:10 | ||
| So we can potentially do a static analysis and call it good enough | |||
| lizmat | my idea would only work if there is no BUILD | ||
| but that's what we're talking about anyway, right? | |||
| jnthn | No, BUILD factors in to this also | ||
| I'm just saying we might be able to cope with BUILD too | 16:11 | ||
| lizmat | grrr | ||
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| lizmat | arriving& | 16:25 | |
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| AlexDaniel | Geth: ver github.com/rakudo/rakudo/commit/ac...8fe2de9aa7 | 19:47 | |
| Geth | AlexDaniel, version bump brought in these changes: github.com/perl6/nqp/compare/2018....1-ga911a64 | ||
| AlexDaniel | Geth: ver github.com/perl6/nqp/compare/2018....1-ga911a64 | ||
| gah | |||
| Geth: ver github.com/perl6/nqp/commit/a911a6...e6c1ac7746 | |||
| Geth | AlexDaniel, version bump brought in these changes: github.com/MoarVM/MoarVM/compare/2...6-g80397b2 | ||
| AlexDaniel | ok then that's something to do with brrt's changes | 19:48 | |
| Skarsnik++ for accidental find: | |||
| m: say run <echo 0>.exitcode | |||
| camelia | JIT ERROR: Negative offset for dynamic label 8 No such method 'exitcode' for invocant of type 'List' in block <unit> at <tmp> line 1 |
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| brrt | no panic folks | 19:54 | |
| this is why you're running development versions | |||
| AlexDaniel | :) | 20:08 | |
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