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Geth MoarVM: jstuder-gh++ created pull request #843:
Add 'slice' op
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Geth MoarVM/backtrace_uninline: a6c8806b3c | (Stefan Seifert)++ | src/core/exceptions.c
Add inlined frames to backtraces

Not yet working. The machinery is there but it fails to find the actual inlined candidate.
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samcv night o/ 12:44
see you all tomorrow
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dogbert17 hmm, the --profile option can still generate humungous profiles 16:47
timotimo yes, the fix for the inlining problem hasn't landed yet because it's also crashy 16:48
dogbert17 aha, any theories as to why it's crashy? 16:51
timotimo the code isn't getting the right inlines; nine's work on uninlining backtraces will be re-usable here, and i think he's gotten farther than i have 16:52
dogbert17 cool 16:56
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dogbert17 heh, a coredump 17:29
timotimo: what do you make of this? gist.github.com/dogbert17/95d345c7...d6526e0b3b 17:45
timotimo good old memory corruption? 17:46
dogbert17 valgrind doesn't say anything if I turn off FSA_SIZE_DEBUG 17:48
timotimo oh, maybe it's a bug in fsa_size_debug? 17:49
dogbert17 perhaps we're not supposed to use that flag anymore? 17:50
timotimo if devs haven't kept it on recently, it could have bitrotted a little? 17:51
things that violate the fsa size debug can lead to real crashes, so it should be kept in good repair
dogbert17 haven't used it for a while but nwc10 found a bug in nqp recently
nwc10 this is chance, but I happened to have this window open 17:53
paste.scsys.co.uk/577152
3 NQP regression tests fail under ASAN when MoarVM is built with FSA_SIZE_DEBUG
timotimo this could be fate!
nwc10 t/p5regex/01-p5regex.t t/qregex/01-qregex.t t/serialization/01-basic.t 17:54
no, I don't know when this first started
dogbert17 uh oh, I hope AlexDaniel doesn't see this :) 17:55
AlexDaniel o_o
dogbert17 I turned on the flag again and used ASAN, now it complains earlier: gist.github.com/dogbert17/458d1bcd...bea437fd1c
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dogbert17 the problem seems to have surfaced after 2018.03 21:25
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