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2018-01-01T00:16:28Z stassats: fortitude: yes, even if they are also loading fasls
2018-01-01T00:17:14Z nyef``: Hrm.
2018-01-01T00:17:35Z nyef``: So, it turns out that I recently made backtrace actively unsafe on non-x86oids.
2018-01-01T00:18:30Z |3b|: isn't there a race in calling generic functions while methods are being added that could be a problem if loading fasl files while running code?
2018-01-01T00:19:07Z |3b|: safe at implementation level, but possibly not doing what user code expects
2018-01-01T00:19:23Z nyef``: Now I just have to figure out how to fix it.
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2018-01-01T00:25:11Z stassats: and (:TIMER :THREADED-STRESS) hanging again on linux-x86
2018-01-01T00:25:16Z stassats: very rare
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2018-01-01T00:28:57Z nyef``: Actually, nevermind, looks like I didn't make it actively unsafe. It already was.
2018-01-01T00:29:16Z stassats: in what way?
2018-01-01T00:29:58Z nyef``: Somehow gets an #<invalid object #x517C0E7D> to fail a type-test.
2018-01-01T00:30:23Z nyef``: The mere fact that it's TRYING that means that a GC invariant has been broken.
2018-01-01T00:30:44Z stassats: after printing a backtrace? or during?
2018-01-01T00:31:19Z nyef``: Don't know. This is from the (:BACKTRACE :TL-XEP) test.
2018-01-01T00:31:38Z nyef``: "not of type SB-KERNEL:CODE-COMPONENT".
2018-01-01T00:31:48Z stassats: but it's been succeeding before that
2018-01-01T00:32:01Z stassats: component_ptr_from_pc wrong?
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2018-01-01T00:32:32Z stassats: not pinning the PC?
2018-01-01T00:32:33Z nyef``: It was failing in 1.4.2.54.
2018-01-01T00:32:56Z nyef``: And this is PPC, so non-x86oid rules apply.
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2018-01-01T00:34:14Z nyef``: Anyway, I'm aware of a couple of bits of stupid in the non-x86oid backtrace logic already, so sorting the whole mess out is rapidly climbing my priority list.
2018-01-01T00:34:53Z stassats: ok, yeah, it's broken
2018-01-01T00:35:31Z stassats: i didn't pay any attention to it, since the BACKTRACE UNDEFINED-FUNCTION tests are broken
2018-01-01T00:35:45Z stassats: (because the undefined function tramps do not have the right headers)
2018-01-01T00:36:13Z stassats: but i don't see gc invariants being broken
2018-01-01T00:36:55Z stassats: will maybe look into it tomorrow, if you don't figure it out by then
2018-01-01T00:37:48Z nyef``: Feel free to not bother. As I said, I'm aware of some other bits of stupid and broken, and the whole mess is rapidly becoming overdue for my attention.
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2018-01-01T01:10:24Z nyef``: ... COMPUTE-CALLING-FRAME is being passed a FUNCTION for its LRA argument?
2018-01-01T01:11:06Z nyef``: LRA save isn't set up yet, maybe?
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2018-01-01T01:16:12Z nyef``: LRA save isn't set up yet.
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2018-01-01T03:09:04Z nyef``: ... And the OCFP save isn't set up yet EITHER. Sometimes it seems that things work "more by good luck than good management". /-:
2018-01-01T03:10:28Z nyef``: I don't suppose that I'll get a speedup from SBCL_MAKE_PARALLEL=2 on a single-core box, will I?
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2018-01-01T03:41:34Z nyef``: Well, THAT didn't work. "An attempt was made to use an undefined FDEFINITION." during cold-init.
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2018-01-01T05:36:14Z nyef``: Okay, fixing this up compiler-side is apparently Not On because there's some sort of dependency loop between two VOPs and an EMIT-MOVE.  I have a plan B in mind, and have a build running to get a trace-file so that I can see if it's likely to work or if I need to come up with a plan C.  But the build won't be done in time for me to make any more progress tonight.
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2018-01-01T10:30:11Z stassats: huh what, (count x #(1 2 3)) conses
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2018-01-01T11:15:06Z stassats: ok, that fixed, back to making COUNT flushable
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2018-01-01T11:37:56Z stassats: ok, can flush (count x #(1 2 3) :test #'eql :start 0 :end nil)
2018-01-01T11:38:24Z stassats: but not, (count x #(1 2 3) :test #'eql :start 1 :end nil), too tricky to specify that START is not producing errors
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2018-01-01T12:01:05Z stassats: (count x #(1 2 3) :test #'= :start 0 :end nil) also not flushable, due to possible type errors
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2018-01-01T13:13:45Z haom: hello
2018-01-01T13:14:54Z haom: the newest sbcl 1.4.3. doesnt build for me any more on an older system.
2018-01-01T13:15:14Z haom: it fails at "immobile-space.c:310:55: error: '__ATOMIC_SEQ_CST' undeclared (first use in this function)"
2018-01-01T13:16:10Z haom: as I see it, this is some newer C++11 feature not supported in older gcc (in my case 4.6.3)
2018-01-01T13:16:59Z haom: is this intentional, that in order to be able to build sbcl you now need to have up to date gceverything else?
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2018-01-01T13:18:08Z haom: i dont think that a 4 yr old system shouldnt be able to build sbcl any more.
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2018-01-01T13:59:11Z pfdietz: gcc 4.6.3 is nearly 6 years old.
2018-01-01T14:00:32Z pfdietz: Although I don't know how recent a gcc would be needed to avoid this imcompatibility.
2018-01-01T14:06:11Z haom: i just think that sbcls release policy shouldnt be "if you want this minor update, you have to reinstall your sywhole stem"
2018-01-01T14:06:20Z haom: system
2018-01-01T14:10:56Z haom: this basically obsoletes the use of common lisp on older machines, without any significant gain.
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2018-01-01T14:12:21Z Shinmera: You can still use older SBCL versions on older systems just fine.
2018-01-01T14:14:34Z haom: so?
2018-01-01T14:15:06Z haom: i still think that a compiler for a 30 yr old language shouldnt intentionally obsolete 4 yr old machines
2018-01-01T14:15:59Z Shinmera: And I think it shouldn't have to sacrifice development just to keep eternal compatibility.
2018-01-01T14:16:42Z haom: so what new groundbreaking feature was "developed" here that isnt even mentioned in the news list?
2018-01-01T14:16:54Z haom: its just some minor incompatibility.
2018-01-01T14:17:50Z haom: if there was some feature that depended on it, it could be seen as a tradeoff, but so?
2018-01-01T14:18:04Z Shinmera: Look man you can't expect people to test things on however many years old machines all the time.
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2018-01-01T14:19:45Z haom: "however many years" ist just one ubuntu LTS release cycle.
2018-01-01T14:20:36Z Shinmera: If you want to set up the testing environments to cover these cases I'm sure people wouldn't mind.
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2018-01-01T14:23:03Z pfdietz: You could ask for your money back.
2018-01-01T14:23:04Z haom: i do not think you are missing testing environments, your attitude to backward compatibility is wrong.
2018-01-01T14:23:52Z Shinmera: I don't think people are intentionally screwing over old systems.
2018-01-01T14:27:35Z haom: so is there a way for me to report this build failure as a bug?
2018-01-01T14:27:36Z pfdietz: There is finite developer bandwidth.   Maintaining compatibility with old systems in current SBCL is just below the level of concern that would justify doing them doing it.
2018-01-01T14:28:26Z Shinmera: haom: https://bugs.launchpad.net/sbcl/
2018-01-01T14:28:37Z pfdietz: I'd add that sticking with old software is risky all by itself.  You are not getting security-relevant bug fixes.
2018-01-01T14:30:20Z pfdietz: And if you are developing software on old platforms, you risk not being to deliver to current ones, where most of your potential users will be.
2018-01-01T14:30:59Z pfdietz: I realize the irony of making that argument on a lisp channel. :)
2018-01-01T14:32:04Z haom: i'm tring to stay up to date with sbcl, thats why i dont like having to care about gcc, libc, etc, just to be able to stay up to date in lisp-world.
2018-01-01T14:33:45Z haom: upgrading the whole system is quite a lot more effort than simply recompiling sbcl once in a month.
2018-01-01T14:34:36Z haom: ok, i'll stop the rant now.
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2018-01-01T15:28:39Z nyef``: Okay, it's an escaped frame. Unless FIND-ESCAPED-FRAME is screwed up more than I currently believe. There's a COMPILED-DEBUG-FUN, so FRAME-DOWN calls COMPUTE-CALLING-FRAME with an OCFP and an LRA. The OCFP and LRA are found by calling GET-CONTEXT-VALUE, passing the frame, the standard save location, and the... WTF?
2018-01-01T15:30:25Z nyef``: If :FP-AND-PC-STANDARD-SAVE, it uses a "passing" location, but otherwise it uses the save location specified in the C-D-F?
2018-01-01T15:30:46Z nyef``: Lovely. /-:
2018-01-01T15:31:07Z nyef``: Anyway, it's using the save location specified in the C-D-F, which is *not* the passing location.
2018-01-01T15:33:48Z nyef``: The save location is set up in IR2-CONVERT-BIND, the first EMIT-MOVE in that function.  Which happens after calling INIT-XEP-ENVIRONMENT.
2018-01-01T15:34:47Z nyef``: INIT-XEP-ENVIRONMENT sets up the OLD-FP save location as the last thing it does, which is the other half of this disaster.
2018-01-01T15:35:20Z nyef``: But one of the first things it does after XEP-ALLOCATE-FRAME is to VERIFY-ARG-COUNT, which embeds an error trap.
2018-01-01T15:35:40Z nyef``: *BEFORE* the FP and LRA saves are set up.
2018-01-01T15:35:52Z nyef``: So those two are still in the passing locations, not the save locations.
2018-01-01T15:36:57Z nyef``: From experimentation, while I can move the LRA save earlier in the process, moving it before COPY-MORE-ARG causes build failures, and COPY-MORE-ARG comes after VERIFY-ARG-COUNT.
2018-01-01T15:41:14Z nyef``: Oh, and :FP-AND-PC-STANDARD-SAVE appears to short-cut this entire thing, and applies to x86, x86-64, arm, and arm64. I don't believe that converting to that across teh board is necessarily a win, however.
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2018-01-01T16:24:32Z pfdietz: lp 1740758
2018-01-01T16:24:32Z specbot: https://bugs.launchpad.net/bugs/1740758
2018-01-01T16:24:39Z pfdietz: Not a bug I would have expected.
2018-01-01T16:25:27Z nyef``: Neat. Also, technically not a duplicate docstring.
2018-01-01T16:25:41Z pfdietz: Indeed, it's valid code.
2018-01-01T16:25:50Z nyef``: Had there been a DECLARE after the second, though, it would've been.
2018-01-01T16:25:56Z stassats: clhs 3.4.11
2018-01-01T16:25:57Z specbot: Syntactic Interaction of Documentation Strings and Declarations: http://www.lispworks.com/reference/HyperSpec/Body/03_dk.htm
2018-01-01T16:26:07Z nyef``: (Or the DECLARE would have been an undefined function or something.)
2018-01-01T16:28:32Z pfdietz: Hmm, reading that, it's not clear it's actually valid code.
2018-01-01T16:30:12Z pfdietz: Ok, it is invalid, but should not throw an error.
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2018-01-01T16:33:21Z nyef``: Is it really invalid?
2018-01-01T16:33:44Z pfdietz: well, "unspecified"
2018-01-01T16:33:52Z pfdietz: So SBCL can treat it as invalid.
2018-01-01T16:34:09Z nyef``: Hrm.
2018-01-01T16:34:52Z pfdietz: Actually... unspecified means "unpredictable but harmless".
2018-01-01T16:35:00Z pfdietz: is throwing an error harmless?
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2018-01-01T16:35:35Z nyef``: My parse on this is that the first string is a documentation string, but after that a further documentation string is not permissible and therefore the second string is a form.
2018-01-01T16:36:01Z nyef``: But I'm not quite up to trying to do a proper spec-lawyering right now.
2018-01-01T16:36:23Z Shinmera: Could ask beach in #lisp
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2018-01-01T16:36:46Z pfdietz: Or it could mean an implementation could treat the concatenation of the strings as a doc string.  Or concatenation w. line breaks.
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2018-01-01T16:39:34Z stassats: no code should look like that
2018-01-01T16:39:44Z stassats: generated or not
2018-01-01T16:40:09Z stassats: a style warning is warranted
2018-01-01T16:40:14Z stassats: but not an error
2018-01-01T16:41:54Z pfdietz: This morning's burst of bugs is due to a tweak in the testing.  It's now taking forms from real lisp files and mangling them, rather than mangling randomly generated mostly-integer code.
2018-01-01T16:43:49Z pfdietz: These bugs are high frequency, so although they may not be themselves important, they would get in the way of finding lower frequency bugs.
2018-01-01T16:44:35Z pfdietz: That's a generic problem with random testing: unless everything is fixed, it stops being useful.
2018-01-01T16:45:49Z pfdietz: It's also why I put in that request for more information in error objects, so I could more easily screen out specific errors.
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2018-01-01T17:22:55Z nyef`` starts looking for a "least worst" stopgap for the PPC TL-XEP backtrace problem.
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2018-01-01T18:33:19Z slyrus: hey stassats!
2018-01-01T18:33:21Z slyrus: happy new year
2018-01-01T18:33:37Z stassats: hi
2018-01-01T18:34:48Z slyrus: the defknown for remove-if and remove-if-not are missing the :count kw arg
2018-01-01T18:34:57Z slyrus: s/are/is/
2018-01-01T18:35:26Z stassats: right
2018-01-01T18:35:39Z stassats: any more missing?
2018-01-01T18:35:59Z slyrus: not that I know of but that one broke the mcclim tabdemo.
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2018-01-01T18:36:26Z slyrus: from-end?
2018-01-01T18:36:37Z slyrus: happy new year dougk!
2018-01-01T18:36:50Z stassats: it's all because somebody had split :start and :end
2018-01-01T18:36:53Z slyrus: thanks to both of you guys for all your work on SBCL in 2017!
2018-01-01T18:37:20Z slyrus: not sure I follow what you mean by splitting :start and :end
2018-01-01T18:37:57Z stassats: not being positioned sequentially
2018-01-01T18:38:09Z slyrus: oh, no, from-end is there.
2018-01-01T18:38:10Z slyrus: ok.
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2018-01-01T18:45:32Z slyrus: fwiw, fixing the defknown fixes the clim tabdemo compilation problem
2018-01-01T18:46:02Z stassats: slyrus: it's fixed now
2018-01-01T18:46:31Z slyrus: ok, thanks!
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2018-01-01T21:43:41Z stassats: and now i'm past 2000 commits
2018-01-01T22:02:16Z nyef``: Congratulations.
2018-01-01T22:02:49Z nyef``: I've got a ways to go to get to 1000.
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2018-01-02T00:31:43Z aeth: I should be able to do bit operations on (unsigned-byte 64)s as long as they are either constant or part of a (simple-array (unsigned-byte 64) (*)) and no (unsigned-byte 64) is directly returned or otherwise leaves the function except perhaps by modifying a (simple-array (unsigned-byte 64) (*)), right?
2018-01-02T00:31:53Z aeth: e.g. (defun foobar (v) (declare ((simple-array (unsigned-byte 64) (2)) v)) (setf (aref v 0) (logand (aref v 0) (aref v 1))) v) ; no bignums in disassembly
2018-01-02T00:32:30Z aeth: An algorithm I want to use relies on (unsigned-byte 64)s
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2018-01-02T00:41:52Z nyef``: aeth: On a 64-bit target only, yes.
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2018-01-02T00:42:40Z stassats: it's 2018, who needs any other target
2018-01-02T00:42:48Z nyef``: aeth: But if you're being picky on that level, the :TRACE-FILE parameter to COMPILE-FILE is nice, as is (SB-DISASSEM:DISASSEMBLE-CODE-COMPONENT #'FOOBAR), or at least DISASSEMBLE.
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2018-01-02T00:45:13Z aeth: I always disassemble
2018-01-02T00:45:21Z aeth: I wasn't aware of the other disassemble
2018-01-02T00:46:52Z aeth: I guess that shows all of the type checking that happens when safety is not 0?
2018-01-02T00:49:23Z nyef``: All of the argument parsing, the actual entry details, and what not.
2018-01-02T00:50:02Z aeth: ah
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2018-01-02T00:51:01Z aeth: What happens to (unsigned-byte 64) arrays in 32-bit? They don't exist and trying to make one is a T array?
2018-01-02T00:51:10Z stassats: they don't exist
2018-01-02T00:51:35Z stassats: and don't use (safety 0)
2018-01-02T00:51:53Z nyef``: Right. It's an (ARRAY T).
2018-01-02T00:52:21Z nyef``: And, yeah, don't use (SAFETY 0) unless you know exactly why you shouldn't and what the consequences are.
2018-01-02T00:53:03Z stassats: even if you know, the cost of dealing with safety issues just for a few percentages of performance is too high
2018-01-02T00:53:18Z aeth: The integrity of this image is possibly compromised.
2018-01-02T00:53:25Z aeth: Continuing with fingers crossed.
2018-01-02T00:53:36Z aeth: ^ The consequences.
2018-01-02T00:57:20Z aeth: I'm writing a game engine and I've never been tempted to go (safety 0) because I always hit the performance targets with the low hanging fruit optimizations like (speed 3) and type declarations for numbers and arrays.
2018-01-02T00:58:48Z nyef``: Mere DETECTED image integrity issues aren't the only thing to be concerned about, of course. (-:
2018-01-02T01:00:32Z aeth: If I wanted memory surprises, I'd program in C++.
2018-01-02T01:00:50Z stassats: where's the fun in that, come straight to assembly
2018-01-02T01:01:18Z aeth: I might.
2018-01-02T01:01:39Z aeth: How capable are the assembly stuff built into SBCL?
2018-01-02T01:01:52Z aeth: Can SBCL be used to write compilers?
2018-01-02T01:02:02Z stassats: it can be used to write sbcl
2018-01-02T01:05:52Z aeth: I'm just wondering if define-vop (or something else?) is capable enough to write a programming language with.
2018-01-02T01:05:59Z aeth: Could be a fun project.
2018-01-02T01:06:11Z stassats: you don't want to be doing that
2018-01-02T01:09:05Z nyef``: ... Isn't that how CLOAK was implemented?
2018-01-02T01:10:15Z aeth: Well, normally I just compile to CL and let the SBCL compiler handle things.
2018-01-02T01:10:15Z nyef``: But, yeah, at that point you lose all of the upper layers, where most of the smarts are. And then if you operate in terms of the upper layers, you lose the ability to control some of the lower-level details, like calling conventions...
2018-01-02T01:10:55Z stassats: i would even say that define-vop is no good for sbcl itself
2018-01-02T01:11:13Z aeth: How does define-vop interoperate with the heap? Or does it not?
2018-01-02T01:11:27Z stassats: it doesn't
2018-01-02T01:11:56Z aeth: So you can't allocate? Or is there a very bad, definitely-don't-do way to allocate?
2018-01-02T01:12:28Z stassats: you can do anything
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2018-01-02T01:25:12Z pfdietz: I think it's standard dogfood to try to write the compiler for X in X.
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2018-01-02T06:53:14Z jack_rabbit: I'm getting weird results with large-integer division in SBCL.
2018-01-02T06:53:17Z jack_rabbit: (/ 80658175170943878571660636856403766975289505440883277824000000000000 2000000000000000000000000000000000) => 19230407517181367533602866376973096603224159584256/476837158203125
2018-01-02T06:53:40Z jack_rabbit: But the true answer is: 40329087585471939285830318428201883
2018-01-02T06:54:47Z jack_rabbit: Is there something about division that I'm missing? The integer division functions work as expected.
2018-01-02T06:55:30Z aeth: jack_rabbit: https://www.wolframalpha.com/input/?i=80658175170943878571660636856403766975289505440883277824000000000000%2F2000000000000000000000000000000000
2018-01-02T06:56:16Z aeth: I doubt Wolfram-Alpha is using SBCL there and it agrees with SBCL. Or, at least, it looks like it does.
2018-01-02T06:56:50Z aeth: alternatively: (* 40329087585471939285830318428201883 2000000000000000000000000000000000) => 80658175170943878571660636856403766000000000000000000000000000000000
2018-01-02T06:57:09Z jack_rabbit: Oh, geez, you know I missed that the other result was a ratio...
2018-01-02T06:57:16Z jack_rabbit: Stupid me.
2018-01-02T06:57:20Z jack_rabbit: Thanks.
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2018-01-02T09:09:15Z stassats: so, you can have a (and class function) type
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2018-01-02T12:03:06Z scymtym: corci: welcome back
2018-01-02T12:03:06Z corci: scymtym did you mean me? Unknown command 'welcome'
2018-01-02T12:03:07Z corci: Use '!jenkins help' to get help!
2018-01-02T12:03:31Z corci: Project sbcl-master-windows » Windows_7_32bit build #1693: FAILURE in 28 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1693/
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2018-01-02T12:59:07Z corci: Yippee, build fixed!
2018-01-02T12:59:07Z corci: Project sbcl-master-windows » Windows_7_32bit build #1694: FIXED in 28 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1694/
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2018-01-02T14:06:41Z Xof: scymtym: I like your manual style
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2018-01-02T14:22:58Z scymtym: Xof: great, thanks. it is not mine, though. i customized sirgazil's "texinfo-css" style (which is in the public domain) a bit
2018-01-02T14:23:14Z scymtym: i should probably add an URL instead of referring to it like that
2018-01-02T14:23:50Z scymtym: if nobody else has objections, i will push the style change
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2018-01-02T14:40:49Z nyef``: ... there is something like 64 occurrences of the abbreviation "scp" in SBCL, with no apparent explanation of what it means.  My first thought is "secure, contain, protect", but I'm fairly sure that that's not right.  It's always a context, so "stupid context pointer" feels closer but also not right.
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2018-01-02T14:44:45Z Xof: struct context?
2018-01-02T14:44:55Z nyef``: signal context?
2018-01-02T14:45:05Z Xof: I think we're converging
2018-01-02T14:45:16Z Xof: SigContext
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2018-01-02T14:46:13Z nyef``: I think I'm going to start changing it to "context", because we typically know what that is when we're dealing with an interrupt/signal context, and that way we don't have a weird unexplained abbreviation hanging around.
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2018-01-02T14:56:01Z stassats: (defun foo (&aux (nil 10)) nil) => 10
2018-01-02T14:57:54Z nyef``: stassats: Seems legit, as long as you shadow NIL?
2018-01-02T14:58:01Z stassats: no
2018-01-02T14:58:15Z nyef``: Yes!
2018-01-02T14:58:32Z Bike: well if it's not cl:nil it's ok, but i assume that's not what happened.
2018-01-02T14:58:38Z nyef``: Admittedly, setting up such a package would be weird, and almost certainly not what's going on here. (-:
2018-01-02T15:05:01Z pfdietz: When running slime, there are two windows: *inferior-lisp* and the actual slime window.  These are in different lisp threads?
2018-01-02T15:05:20Z stassats: pfdietz: possibly, not necessarily
2018-01-02T15:05:21Z Shinmera: *inferior-lisp* is the actual lisp process window.
2018-01-02T15:05:42Z nyef``: pfdietz: Only when using multiple threads on a multi-thread lisp.
2018-01-02T15:05:48Z pfdietz: I'm noticing the actual slime window stops responding to interrupts after a while.
2018-01-02T15:05:50Z Shinmera: and spawn communication style
2018-01-02T15:05:57Z pfdietz: This is in current x86-64 sbcl.
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2018-01-02T16:05:53Z corci: Project sbcl-master » fancy,ubuntu_trusty_64bit build #2810: FAILURE in 11 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_64bit/2810/
2018-01-02T16:06:15Z stassats: oh no, why
2018-01-02T16:06:37Z stassats: ADDRESS-IN-USE-ERROR, ugh
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2018-01-02T17:00:13Z nyef``: Well, that sucked.
2018-01-02T17:00:27Z nyef``: Somehow, the main circuit breaker for the entire house tripped.
2018-01-02T17:00:44Z stassats: compiling sbcl?
2018-01-02T17:01:24Z nyef``: No, but I had a certain amount of state set up on a box with no UPS.
2018-01-02T17:02:20Z nyef``: Including a tramp connection.
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2018-01-02T18:36:22Z stylewarning: In SBCL, can I get a random element from a hash table quickly without maphash/w-h-t-i?
2018-01-02T18:36:54Z stassats: don't use hash-tables?
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2018-01-02T18:39:35Z nyef``: Can it be the same random element each time? (-:
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2018-01-02T21:00:40Z corci: Yippee, build fixed!
2018-01-02T21:00:40Z corci: Project sbcl-master » fancy,ubuntu_trusty_64bit build #2811: FIXED in 31 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_64bit/2811/
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2018-01-02T21:37:09Z phoe: I am attempting to compile SBCL on Android on ARM64 with ECL host. The make script told me there's no threads on this platform; is this correct?
2018-01-02T21:37:26Z stassats: no
2018-01-02T21:38:10Z stassats: but ecl can't build sbcl, so who cares
2018-01-02T21:39:01Z nyef``: Is it detecting for arm, rather than arm64?
2018-01-02T21:39:25Z phoe: nyef``: yes.
2018-01-02T21:39:38Z phoe: how can I force it to go arm64 instead?
2018-01-02T21:39:57Z nyef``: You might have some luck with --arch=arm64
2018-01-02T21:40:23Z nyef``: On the other hand, you might still have some trouble due to your build host?
2018-01-02T21:40:34Z stassats: use sbcl as the host, not ecl
2018-01-02T21:41:05Z phoe: stassats: I do not have a compiled SBCL binary for arm64 android.
2018-01-02T21:41:09Z phoe: Is there one?
2018-01-02T21:41:38Z stassats: don't run it on arm64 android
2018-01-02T21:41:51Z stassats: do you have a c compiler running on android?
2018-01-02T21:42:16Z phoe: I do, gcc and clang
2018-01-02T21:42:36Z stassats: not even mentioning that there's no sbcl arm64 android port
2018-01-02T21:42:53Z stassats: that's a weird android you've got there
2018-01-02T21:43:04Z phoe: nah, not anymore
2018-01-02T21:43:20Z phoe: termux makes installing packages, including build envs, pretty damn easy.
2018-01-02T21:43:53Z stassats: if you can run gcc, then it's not android, it's gnu/linux
2018-01-02T21:43:57Z stassats: you can run sbcl there
2018-01-02T21:44:07Z phoe: android is gnu/linux by definition
2018-01-02T21:44:19Z phoe: it's just that multiple distros purposefully dumb it down
2018-01-02T21:44:20Z stassats: except that it's not
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2018-01-02T21:47:00Z phoe: hmmm
2018-01-02T21:47:06Z phoe: the compilation breaks at https://github.com/sbcl/sbcl/blob/master/src/compiler/macros.lisp#L729
2018-01-02T21:47:12Z phoe: ECL complains that INFO gets too few arguments.
2018-01-02T21:47:29Z stassats: did we tell you that ecl can't build sbcl?
2018-01-02T21:47:44Z phoe: yes, you did, and right now I am figuring out why.
2018-01-02T21:47:52Z stassats: it's an ecl problem
2018-01-02T21:48:22Z stassats: known to ecl
2018-01-02T21:49:00Z nyef``: How about using x86-64 SBCL as a build host?
2018-01-02T21:49:46Z stassats: or sbcl-arm64, since the android is already bastardized to run gcc/clang
2018-01-02T21:50:03Z nyef``: Or that. Fine.
2018-01-02T21:54:10Z nyef``: Okay, no new backtrace.impure regressions in my working tree. That's a start.
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2018-01-03T00:03:28Z nyef``: Is there a suitable type specifier that I can use for SIMPLE-FUNs, and one that I can use for LRAs, or should I just do an explicit tag-test?
2018-01-03T00:04:53Z stassats: lra-p?
2018-01-03T00:05:11Z stassats: so, lra
2018-01-03T00:08:38Z nyef``: Ah. I think I see now. Thanks.
2018-01-03T00:08:57Z stassats: fun names
2018-01-03T00:09:13Z stassats: lra, return-pc-widetag
2018-01-03T00:09:34Z stassats: who needs consistency
2018-01-03T00:09:52Z nyef``: "A foolish consistency is the hobgoblin of little minds."
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2018-01-03T00:20:22Z pfdietz: emerson!
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2018-01-03T02:43:09Z cryptomarauder: hobgoblins lol
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2018-01-03T02:56:04Z corci: Yippee, build fixed!
2018-01-03T02:56:04Z corci: Project sbcl-master » ccl,ubuntu_trusty_32bit build #2813: FIXED in 26 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_32bit/2813/
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2018-01-03T04:36:17Z nyef``: ... alien UNSIGNED values are n-word-bits wide.  share-vm considers a context register to be UNSIGNED.  scavenge_interrupt_context() has logic to handle the specific case of a big-endian system where the the machine registers are wider than the address space size.
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2018-01-03T04:38:12Z nyef``: And the question I ask myself is: How much do I care about not breaking any system that might be affected by this (already egregiously broken) scenario... this month?  This quarter?
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2018-01-03T10:27:24Z Xof: pfdietz: is that a reference to Asimov?
2018-01-03T10:28:48Z stassats: whack-a-mole with bad type specifiers, maybe i should make a TYPE-SPECIFIER-CAST
2018-01-03T10:29:10Z stassats: which would check whenever a value becomes a constant
2018-01-03T10:30:53Z stassats: sounds like a plan
2018-01-03T10:31:02Z stassats: MORE custom CASTs
2018-01-03T10:31:45Z stassats: maybe it should be CAST-WITH-A-HOOK-FOR-CONSTANT-VALUES
2018-01-03T10:36:43Z stassats: what else can it be used besides type specifiers
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2018-01-03T11:04:03Z corci: Yippee, build fixed!
2018-01-03T11:04:03Z corci: Project sbcl-master » default,MAC_OS_mavericks_64bit build #2814: FIXED in 29 min: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=MAC_OS_mavericks_64bit/2814/
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2018-01-03T11:05:33Z stassats: and (make-array 10 :element-type '((x))) works, without the tedious modifications to fndb.lisp or transforms
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2018-01-03T13:19:43Z pfdietz: Xof: yes it was.
2018-01-03T13:20:05Z pfdietz: brb, cat is ordering breakfast
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2018-01-03T13:23:30Z pfdietz: SBCL complains on (&whole (foo bar) ...) in a macro definition.   I think this is valid CL.
2018-01-03T13:23:35Z pfdietz: CLHS 3.4.4.1.2
2018-01-03T13:23:35Z specbot: Lambda-list-directed Destructuring by Lambda Lists: http://www.lispworks.com/reference/HyperSpec/Body/03_ddab.htm
2018-01-03T13:24:23Z pfdietz: I vaguely remember arguing with people about this, in the day.
2018-01-03T13:26:29Z pfdietz: the question was "must &whole be followed by a symbol, or can that symbol also be a destructuring form".  That page indicates the latter.
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2018-01-03T16:00:11Z nyef``: So, just tried TRACE :ENCAPSULATE NIL :BREAK-AFTER T.
2018-01-03T16:00:46Z nyef``: Because I needed to know how it interacted with backtraces.
2018-01-03T16:00:52Z nyef``: Guess what I found?
2018-01-03T16:01:24Z stassats: a sigbus?
2018-01-03T16:01:29Z nyef``: Nope.
2018-01-03T16:02:33Z stassats: pfdietz: what is really the point of destructuring on &whole?
2018-01-03T16:02:33Z nyef``: I found that backtrace on x86oids is doing wrong things, and that the post-call breakpoint didn't fire on PPC.
2018-01-03T16:03:46Z nyef``: Hrm. Actually, I can't even say with confidence that the breakpoint was even installed on PPC.
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2018-01-03T16:06:08Z nyef``: Which means that I'm about at the limit for what I can do on my current thread of development.
2018-01-03T16:07:12Z nyef``: Okay, I know that the start breakpoint is getting hit, but the end breakpoint isn't.
2018-01-03T16:08:45Z nyef``: ... Probably for the same damned reason as the :TL-XEP thing.
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2018-01-03T17:40:16Z nyef``: Is there an easy way to EMIT-LABEL from IR2TRAN?
2018-01-03T17:40:39Z stassats: what for?
2018-01-03T17:42:15Z nyef``: I need to record a couple of locations in the CDF, I only know what the locations are during IR2TRAN, and I don't really want them on the CDF code-location list.
2018-01-03T17:44:50Z stassats: is it a block?
2018-01-03T17:45:12Z nyef``: No, it's a sub-block VOP boundary.
2018-01-03T17:45:12Z stassats: could use block-label
2018-01-03T17:45:33Z nyef``: Hell, it's a sub-node VOP boundary.
2018-01-03T17:46:11Z nyef``: I'll add a VOP purely to do an EMIT-LABEL if I have to. /-:
2018-01-03T17:50:55Z nyef``: ... do I have to?
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2018-01-03T17:53:44Z stassats: no labels are calculated without emit-label, except for the block labels
2018-01-03T17:56:37Z nyef``: ... Looks like I can "just" (assemble (*code-segment*) (emit-label ...))?
2018-01-03T17:56:55Z stassats: in ir2?
2018-01-03T17:57:14Z nyef``: Ah, good point. This would be pre-segment, wouldn't it?
2018-01-03T17:57:26Z nyef``: Right, I guess I do need a new VOP.
2018-01-03T17:58:58Z nyef``: And there's no generic VOP that already does what I need.
2018-01-03T18:05:42Z stassats: it can be a generic vop
2018-01-03T18:08:26Z nyef``: Exactly.
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2018-01-03T18:54:51Z nyef``: Does :SB-DYNCOUNT work these days?
2018-01-03T18:55:41Z stassats: never used it
2018-01-03T18:55:51Z nyef``: Ah. "not been tested since the fork from base CMU CL".
2018-01-03T19:02:52Z nyef``: Right, time to try and get the compiler side of this damage to build before I start in on the debugger changes.
2018-01-03T19:18:08Z stassats: ok, (map '* a b) gets a warning, but twice, once from map, once from %map
2018-01-03T19:18:31Z stassats: one thing i haven't solved with custom casts, chaining
2018-01-03T19:18:42Z stassats: well, better than no warning
2018-01-03T19:23:49Z nyef``: ... build number three. I think I'm finally running out of ways that this can go wrong at XC-time, at least.
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2018-01-03T20:38:26Z aeth: In case anyone missed it, the new Linux kernel (4.15-rc6) has a 5% to 30% slowdown on Intel CPUs depending on how heavily applications use syscalls. Not too many benchmarks up yet, e.g. https://www.phoronix.com/scan.php?page=article&item=linux-415-x86pti&num=2
2018-01-03T20:38:57Z aeth: It appears to affect I/O a lot, so it will affect the performance of parts of SBCL.
2018-01-03T20:39:09Z stassats: we... don't really care
2018-01-03T20:44:55Z nyef``: It's not going to slow down my PowerPC G4, is it?
2018-01-03T20:45:15Z stassats: would you even notice?
2018-01-03T20:46:36Z nyef``: 30% on a half-hour build process? Yeah, I'd notice.
2018-01-03T20:47:20Z stassats: is the build process so kernel-heavy?
2018-01-03T20:47:35Z aeth: ARM64 might be getting a similar change, apparently. https://www.reddit.com/r/hardware/comments/7nuhb6/arm64_also_receives_linux_kernel_patch_to_unmap/
2018-01-03T20:47:58Z aeth: That's the first time I've heard anything about anything other than Intel x86-64 (and Intel x86?)
2018-01-03T20:49:56Z aeth: The initial reports were that the patch doesn't even apply to AMD CPUs iirc.
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2018-01-03T20:50:47Z nyef``: Also? Not the first time I've heard about a CPU's speculative execution magic causing problems. The MIPS R10000 had problems with memory coherency under certain circumstances.
2018-01-03T21:00:38Z Guest26041 is now known as pkhuong
2018-01-03T21:00:48Z pkhuong: or turn the security feature off.
2018-01-03T21:01:21Z pkhuong: x86 isn't affected; the virtual address space isn't large enough to fit a reasonable user AS and the kernel's.
2018-01-03T21:01:39Z aeth: Okay, the main thing being talked about only applies to non-AMD x86 CPUs. (People using VIA CPUs will be affected by the patch because the patch only whitelists AMD.) https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?h=x86/pti&id=694d99d40972f12e59a3696effee8a376b79d7c8
2018-01-03T21:02:22Z aeth: It's a new security feature that will only be enabled on vulnerable CPUs.
2018-01-03T21:02:54Z stassats: "feature"
2018-01-03T21:10:08Z phoe: s/feature/mitigation/
2018-01-03T21:16:19Z corci: Yippee, build fixed!
2018-01-03T21:16:20Z corci: Project sbcl-master » without-unicode,MAC_OS_mavericks_64bit build #2817: FIXED in 28 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=MAC_OS_mavericks_64bit/2817/
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2018-01-03T21:51:53Z nyef``: Damned SINGLE CHARACTER TYPOs. Requiring a full damned build cycle to fix, no less. )-:
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2018-01-03T22:06:58Z stassats: would you be less unhappy with two character typos?
2018-01-03T22:07:58Z nyef``: Depends on their proximity, really.
2018-01-03T22:08:07Z nyef``: Also how many builds I've already done on the same line of development.
2018-01-03T22:08:45Z stassats: interactive development,n udge nudge
2018-01-03T22:09:13Z nyef``: Yeah, yeah. The reason I got into Lisp in the first place.
2018-01-03T22:10:26Z nyef``: That said, the bit I'm working on right now involves changing the compiler debug info, and I'm using backtrace.impure.lisp to test, which basically means full builds anyway.
2018-01-03T22:12:13Z stassats: i turn on the interpreter and butcher the compiler
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2018-01-03T22:25:05Z nyef`` sighs.
2018-01-03T22:25:17Z nyef``: Got a reader conditional backwards, twice in quick succession. /-:
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2018-01-03T22:27:33Z nyef``: Eventually I'm going to run out of stupid fiddly mistakes and finally hit something that will tell me that I've missed something fundamental that invalidates everything I've been working on for the past couple of days.
2018-01-03T22:27:50Z nyef``: ... Or that stupid test will finally pass. Possibly both.
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2018-01-03T22:42:55Z stassats: or something that will become apparent in ten years
2018-01-03T22:43:40Z nyef``: Ten years before we find a problem? That's a win, I think.
2018-01-03T22:45:09Z nyef``: I suppose it might be a loss, if it means that nobody actually uses any of it over that time period.
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2018-01-03T23:26:13Z nyef``: Well! The test doesn't pass, but now it's because it got ((NAMESTRING #<unavailable argument>) (:EXTERNAL)) rather than ((NAMESTRING) (:EXTERNAL)). That's far, far better than a type error involving a bogus object.
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2018-01-04T00:05:49Z nyef``: This... is actually rather dissatisfying.  The test suite revealed a bug.  A fairly nasty bug, really.  I *fix* the bug.  And the test still doesn't pass.
2018-01-04T00:06:37Z nyef``: And it took nine commits to do so, and I have yet to go back through, review them, and add proper commit comments.
2018-01-04T00:23:38Z whoman: bug in testing framework !
2018-01-04T00:26:12Z nyef``: No, nor really bug in tests. Just more work to do.
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2018-01-04T00:59:19Z nyef``: Hrm. I can add a ? in two places to make the test pass on ppc, and not fail on x86-64...  but I'm not at all convinced that I should.
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2018-01-04T01:00:31Z nyef``: In fact, I'm fairly sure that I shouldn't: Duplicating out the test, making one version have the ?s and the other be :FAILS-ON something seems more appropriate.
2018-01-04T01:03:04Z nyef``: Altern... No. No alternately. The two tests plus the :FAILS-ON, provided that the :FAILS-ON isn't a set of architectures, would be the most appropriate in that it documents what the difference is quite precisely.
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2018-01-04T05:23:18Z nyef``: Okay, my current branch is a mess, but I'm down to TWO backtrace.impure.lisp failures. With a bit of luck, I won't have just broken that with my latest round of edits.
2018-01-04T05:23:48Z nyef``: ... And I totally need to do a before-and-after MIPS build set tomorrow.
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2018-01-04T15:29:06Z Shinmera: Are there cases under which SBCL won't expand a compiler macro? I'm mostly asking as I have a lot of really small functions that I'd like to inline, but I run into the inline expansion limit easy with that, so I've been thinking of changing it to do "manual inlining" through compiler macros.
2018-01-04T15:29:40Z Shinmera: Cases other than NOTINLINE that is.
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2018-01-04T16:17:54Z nyef``: ... I think I just figured out why fun-end breakpoints (thus, TRACE :ENCAPSULATE NIL) stopped working on PPC.
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2018-01-04T17:06:43Z nyef``: dougk_: If I'm removing a feature from being specified by make-config.sh, should I also be removing it from the local-target-features files for the crossbuild-runner?
2018-01-04T17:07:35Z nyef``: And if so, do I need to do anything special there, or just go in and delete the keyword from the affected files?
2018-01-04T17:08:23Z dougk_: just delete i think
2018-01-04T17:08:36Z nyef``: Okay, thanks.
2018-01-04T17:08:39Z dougk_: if there are features that need to be universally added back in, they can go in the 'build-all.sh' script
2018-01-04T17:09:11Z nyef``: In this case, it's a feature that I'm removing because it now applies to all platforms.
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2018-01-04T18:37:41Z nyef``: You know what'd be neat? If SBCL_MAKE_PARALLEL managed to record somewhere the compiler output from each file processed, so that if something goes wrong, and it exceeds your scrollback, you can still find the error without having to run a non-parallel build.
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2018-01-04T18:54:39Z nyef``: And, yes, I did find where the fun-end breakpoint stuff is going wrong. And it's the same damned thing.
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2018-01-04T21:09:42Z scymtym: dougk_: did you get a chance to look at the lambda list changes?
2018-01-04T21:13:11Z dougk_: no, in fact can you remind me - did you send me a link to github, or an email? i'm stuck in transit ("snowmageddon")
2018-01-04T21:15:01Z scymtym: sorry to hear that
2018-01-04T21:15:27Z scymtym: let me get the link
2018-01-04T21:16:40Z scymtym: https://github.com/scymtym/sbcl/compare/lambda-list-changes~5...lambda-list-changes
2018-01-04T21:17:14Z scymtym: it's a draft at the moment. i wanted to know whether you agree with the general idea
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2018-01-04T21:53:28Z stassats:   undefined variable: SB!DI::FRAME-POINTER
2018-01-04T21:54:00Z nyef``: My changes, I presume?
2018-01-04T21:54:41Z nyef``: Ah. ARM/ARM64.
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2018-01-04T21:55:14Z stassats: yes
2018-01-04T21:56:26Z nyef``: It would have to be one of the special snowflake platforms that did it, too. /-:
2018-01-04T21:57:59Z nyef``: Damn, I broke that fairly early on, too.
2018-01-04T21:58:12Z nyef``: Since it has to be a SAP, and I swapped it out for an integer.
2018-01-04T21:58:22Z nyef``: Oh, wait. No... What?
2018-01-04T21:58:25Z stassats: do you need any help for the arm64 side?
2018-01-04T21:58:58Z nyef``: Can we "just" kill the LRA term in that message?
2018-01-04T21:59:24Z stassats: can we kill /noshow0?
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2018-01-04T22:00:15Z nyef``: The point of /noshow0 is that it *IS* killed, just easy to resurrect.
2018-01-04T22:00:47Z stassats: except that i can't redefine it without pain
2018-01-04T22:01:19Z nyef``: Right.
2018-01-04T22:01:31Z stassats: i usually kill all the show0 nonsense i encounter, except if it's around cold-init stuff
2018-01-04T22:03:32Z nyef``: (stack-ref (int-sap (context-register context sb!vm::cfp-offset)) lra-save-offset) ?
2018-01-04T22:05:45Z stassats: x86 doesn't have the same error?
2018-01-04T22:06:33Z nyef``: No, it doesn't. For reasons.
2018-01-04T22:06:56Z stassats: but can you trigger it on a risc?
2018-01-04T22:07:04Z nyef``: (Basically, if it gets to that point, the PC is actually in the boxed region of the code-object.)
2018-01-04T22:07:16Z nyef``: On a non-x86oid, though...
2018-01-04T22:08:22Z nyef``: Hrm.
2018-01-04T22:09:27Z nyef``: Yeah, there's a window on PPC, at least.
2018-01-04T22:10:03Z stassats: yet the non-x86oid platforms are a lot closer to precise backtraces
2018-01-04T22:10:07Z nyef``: Overall, I'm looking to address the reasons for that error, possibly to the point where we can turn it into a bug.
2018-01-04T22:10:12Z stassats: not having to deal with the c stack
2018-01-04T22:10:32Z stassats: yet they actually have worse backtraces
2018-01-04T22:10:54Z nyef``: "Worse", in that they don't have the C frames?
2018-01-04T22:11:42Z nyef``: Oh, I know! "Worse", in that they don't detect undefined-tramp properly?
2018-01-04T22:13:31Z stassats: i actually see little value in detecting undefined-tramp
2018-01-04T22:13:45Z stassats: it's already saying "undefined"
2018-01-04T22:14:02Z stassats: whether it's a "bogus frame" or [undefined] is immaterial
2018-01-04T22:14:24Z nyef``: Okay, so worse how?
2018-01-04T22:14:35Z stassats: unreliable, just showing some junk like ???
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2018-01-04T22:14:50Z stassats: at least from cold-init
2018-01-04T22:15:07Z nyef``: ... The LDB backtrace, or the real debugger?
2018-01-04T22:15:29Z stassats: LDB
2018-01-04T22:15:32Z nyef``: Ah.
2018-01-04T22:15:55Z nyef``: I'm... not too worried about LDB backtraces, TBH.
2018-01-04T22:16:14Z stassats: but i think i had some of that fixed
2018-01-04T22:16:27Z stassats: like 24ce8027a1c555f2e82e4939c31c9e15847c9d89
2018-01-04T22:17:28Z stassats: is the stack frame format documented anywhere? with all the stuff in the fake foreign frames?
2018-01-04T22:17:33Z nyef``: ... And then things broke again on 2017-Oct-10?
2018-01-04T22:18:18Z stassats: like, what is (when (symbolp code) (return (values code 0 context)))?
2018-01-04T22:19:23Z nyef``: There are two possible cases when that triggers. Either CODE is NIL, meaning "not a code-object", or it's :UNDEFINED-FUNCTION.
2018-01-04T22:19:45Z stassats: did you fix undefined-tramp detection?
2018-01-04T22:19:50Z nyef``: Not yet.
2018-01-04T22:20:07Z stassats: it's in read-only-space, can we just do a range-check?
2018-01-04T22:20:46Z nyef``: Honestly, it's on my list to fix this month.
2018-01-04T22:21:11Z stassats: no need to give the tramps all the headers, just to appease a small debugger feature
2018-01-04T22:21:45Z nyef``: I suspect that something stupid is happening with the current mechanism, and I just haven't tracked it down yet.
2018-01-04T22:22:16Z stassats: i think it's started happening after the move to read only tramps
2018-01-04T22:22:41Z nyef``: This comes as absolutely no surprise.
2018-01-04T22:22:51Z stassats: but has been a low priority for me due its diminishing utility
2018-01-04T22:25:27Z stassats: random "Invalid exit status: kill-non-lisp-thread.impure.lisp" is starting to annoy me
2018-01-04T22:25:33Z stassats: on darwin
2018-01-04T22:25:57Z nyef``: You almost had me worried there, until you said the magic words "on darwin", which means "not important". (-:
2018-01-04T22:26:44Z stassats: should have said "on hppa"
2018-01-04T22:27:19Z nyef``: I'd've asked you what HPPA box you were using, and why you hadn't fixed any of the more egregious problems.
2018-01-04T22:28:04Z stassats: qemu
2018-01-04T22:28:33Z nyef``: ... Riiight. When did they merge HPPA support, again?
2018-01-04T22:28:47Z nyef``: (Within the past YEAR, was it?)
2018-01-04T22:30:29Z nyef``: Just in case they *did*, or they managed to add any interesting MIPS CPUs or documentation, I'm updating my local qemu tree.
2018-01-04T22:31:35Z stassats: don't think it's merged or fully working
2018-01-04T22:31:45Z stassats: "The emulation already boots a Debian install CD, runs through whole kernel initialization code and even runs quite far into the init process."
2018-01-04T22:32:10Z stassats: that's from "Dec 2017"
2018-01-04T22:32:45Z nyef``: So... last MONTH?
2018-01-04T22:34:28Z nyef``: Hrm... Okay, yes, there's an HPPA CPU target now.
2018-01-04T22:37:14Z stassats: and the CI is using some older macOS, so I may never actually hit it
2018-01-04T22:37:48Z stassats: 10.9.5, while i'm on 10.13.2
2018-01-04T22:38:11Z stassats: could try leaving it on overnight
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2018-01-04T22:38:26Z stassats: (all that wasted energy)
2018-01-04T22:40:20Z nyef``: ... but no MIPS R1[0246]000 support. /-:
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2018-01-04T23:08:48Z corci: Project sbcl-master-windows » Windows_7_32bit build #1709: FAILURE in 28 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1709/
2018-01-04T23:13:24Z stassats: huh, running kill-non-lisp-thread in a loop, i get   The value -3135 is not of type (UNSIGNED-BYTE 61)
2018-01-04T23:13:29Z stassats: from (GET-INTERNAL-REAL-TIME)
2018-01-04T23:13:43Z nyef``: Non-monotonic clock?
2018-01-04T23:14:22Z stassats: apparently
2018-01-04T23:16:48Z stassats: looking in the logs, i see mac timed[97]: settimeofday({0x5a4eb340,0x934c4}) == 0
2018-01-04T23:17:40Z stassats: https://bugs.launchpad.net/sbcl/+bug/1735795
2018-01-04T23:17:57Z stassats: also https://bugs.launchpad.net/sbcl/+bug/1028026
2018-01-04T23:20:43Z corci: Project sbcl-cross-build-master » arm64,ubuntu_xenial_64bit build #35: FAILURE in 9 min 1 sec: http://ci.cor-lab.de/job/sbcl-cross-build-master/architecture=arm64,label=ubuntu_xenial_64bit/35/
2018-01-04T23:34:48Z stassats: hurray
2018-01-04T23:44:07Z nyef``: Right. Shall I check in that alternate STACK-REF I suggested earlier?
2018-01-04T23:44:37Z stassats: is that the fix?
2018-01-04T23:44:44Z stassats: if it is, then yes
2018-01-04T23:46:39Z nyef``: Given that we shouldn't be hitting this case ANYWAY...
2018-01-04T23:53:49Z corci: Yippee, build fixed!
2018-01-04T23:53:49Z corci: Project sbcl-master » fasteval,MAC_OS_mavericks_64bit build #2823: FIXED in 41 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=MAC_OS_mavericks_64bit/2823/
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2018-01-05T00:34:45Z stassats: might finally add monotonic clock support to get-internal-real-time
2018-01-05T00:35:04Z stassats: tomorrow or whenever the next sbcl hacking session is
2018-01-05T00:36:52Z stassats: linux and mac, for a start
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2018-01-05T01:14:41Z corci: Yippee, build fixed!
2018-01-05T01:14:41Z corci: Project sbcl-master-windows » Windows_7_32bit build #1710: FIXED in 29 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1710/
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2018-01-05T01:38:39Z nyef``: Okay, with a bit of luck, that'll actually fix ARMoid builds.
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2018-01-05T02:21:19Z pfdietz: Jiggery-pokery: late 19th century: probably a variant of Scots joukery-pawkery, from jouk ‘dodge, skulk,’ of unknown origin.
2018-01-05T02:21:58Z nyef``: Heh.
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2018-01-05T03:51:59Z corci: Yippee, build fixed!
2018-01-05T03:52:00Z corci: Project sbcl-cross-build-master » arm64,ubuntu_xenial_64bit build #38: FIXED in 9 min 12 sec: http://ci.cor-lab.de/job/sbcl-cross-build-master/architecture=arm64,label=ubuntu_xenial_64bit/38/
2018-01-05T03:53:26Z nyef``: ... good.  Good enough?
2018-01-05T04:23:31Z corci: Yippee, build fixed!
2018-01-05T04:23:32Z corci: Project sbcl-master » fasteval,MAC_OS_mavericks_64bit build #2826: FIXED in 40 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=MAC_OS_mavericks_64bit/2826/
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2018-01-05T11:27:50Z stassats: maybe internal-time-units-per-second should be bumped as well
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2018-01-05T21:19:24Z nyef``: I am... almost happy about the remaining reader conditionals in debug-int.
2018-01-05T21:20:41Z nyef``: Well, maybe "happy" isn't the right word. But I know what most of them are for, why they're there, and which ones are in parts of the code that I'm still planning to work on.
2018-01-05T21:20:51Z stassats: nyef``: btw, ARM64 does have a CSP register
2018-01-05T21:21:52Z nyef``: Okay. I'm not sure that I care right now, though?
2018-01-05T21:22:07Z stassats: well, your commit message said it doesn't
2018-01-05T21:22:16Z nyef``: Fair enough.
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2018-01-05T21:39:39Z stassats: down to one pfdietz ticket
2018-01-05T21:40:01Z stassats: i want ./run-tests.sh to not depend on sb-posix
2018-01-05T21:42:09Z stassats: the remaining ticket seems easy, but i'll probably leave it for tomorrow
2018-01-05T21:42:27Z stassats: and now there are two
2018-01-05T21:43:15Z stassats: the new one is a single-character fix
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2018-01-05T22:09:10Z Xof: stassats: can you tell me why the new symeval constant-folding transform is safe when it converts to just the bare `symbol'?
2018-01-05T22:09:53Z stassats: Xof: ir1-convert will handle it
2018-01-05T22:10:09Z Xof: it looks worrying twice to me: once because of cross-compiling (you'll pick up the host value) and once because of multiple evaluation
2018-01-05T22:10:33Z stassats: well, it's a constant
2018-01-05T22:10:34Z Xof: (defconstant foo 'bar) (defconstant bar 'baz)  (symbol-value 'foo)
2018-01-05T22:12:25Z stassats: well, it's not transforming to the value of FOO, but to FOO
2018-01-05T22:12:48Z Xof: oh OK, yes
2018-01-05T22:13:33Z Xof: thanks
2018-01-05T22:13:58Z stassats: i'm more concering with the symbol-value transform going to FOO when it's a special, which then goes to ir1-convert, which goes back to symeval
2018-01-05T22:14:08Z stassats: well, not concerned, but it's suboptimal
2018-01-05T22:15:46Z stassats: ok, there's some difference for always-boundp
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2018-01-06T00:30:08Z stassats: an unnamed test with a bazillion of input parameters is failing on arm64
2018-01-06T00:30:31Z stassats: and i have to spend an hour to sift through the input parameters to know what is actually failing
2018-01-06T00:30:39Z stassats: hate tests like this
2018-01-06T00:34:34Z stassats: and it's somehow non-deterministic once i try to do that
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2018-01-06T01:32:54Z nyef``: Hunh. I just noticed something about GET-CONTEXT-VALUE on x86oids: The (NOT ESCAPED) branch has the same damned functionality as the ESCAPED branch for every call-site.
2018-01-06T01:38:29Z nyef``: ... Is the reason that SBCL uses a SET-whatever function and DEFSETF so much instead of defining a (SETF whatever) function because CLtL1 didn't permit (SETF whatever) functions?
2018-01-06T01:39:03Z nyef``: And do we have any real bias about NOT defining (SETF whatever) functions these days?
2018-01-06T01:39:59Z stassats: "why bother"
2018-01-06T01:43:06Z pfdietz: What annoys me is (SETF FOO) is a function name, but you can't write ((SETF FOO) x y).   Consistency!  (not emerson)
2018-01-06T01:43:57Z stassats: does it really annoy you?
2018-01-06T01:44:07Z pfdietz: Only marginally.
2018-01-06T01:44:10Z stassats: do you really want to write ((SETF FOO) x y)?
2018-01-06T01:44:28Z pfdietz: No, of course not.
2018-01-06T01:45:07Z pfdietz: And I could always write (funcall #'(setf foo) x y) if I wanted to.
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2018-01-06T03:06:14Z nyef``: ... Every time I dare to think that backtrace is finally starting to make some amount of sense, and to be reasonably reliable, I find yet another damned scenario which breaks things.
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2018-01-06T04:29:17Z nyef``: Okay, might not break things. I can't tell if it's stupid and broken, or merely stupid.
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2018-01-06T13:53:10Z stassats: looks like fixnum nanosecond internal real time will be enough for 146 years
2018-01-06T13:55:13Z stassats: though, internal-time is now 61 bit
2018-01-06T14:16:33Z stassats: rusage is microsecond precision
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2018-01-06T14:58:30Z pfdietz: The ensure-lvar-fun-form test that you just added, was removed?
2018-01-06T14:59:22Z nyef``: Whee... Digging around in the compiler guts trying to satisfy myself that the compiler is doing reasonably sane things with the TNs from MAKE-OLD-FP-SAVE-LOCATION and MAKE-RETURN-PC-SAVE-LOCATION...
2018-01-06T15:00:32Z nyef``: I'm reasonably satisfied with what REPRESENT is doing and why, and have a partial explanation for what PACK does though not if it always does so, and have yet to track down the third component to this little dance.
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2018-01-06T15:54:59Z nyef``: Okay, stupid and broken it is. (lambda () (foo) (foo)) produces a debug-info with the return-pc reported in a register, while also including a full-call, which is WRONG.
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2018-01-06T16:48:18Z nyef``: ... stupid, broken, generating non-optimal code, and with this particular gap I can probably force superfluous loads and stores for other values as well.
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2018-01-06T17:47:32Z nyef``: Okay, I can't just smash up the TN-SC of the TN to match that of the SAVE-TN, because then EMIT-OPERAND-LOAD pitches a fit.
2018-01-06T17:48:58Z nyef``: ... Right, because it's already too late by that point. Lovely.
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2018-01-06T17:52:24Z nyef``: Why does this work, then?
2018-01-06T17:52:47Z nyef``: Save costs. Right, save costs.
2018-01-06T17:53:23Z nyef``: Which means that the place to put the fix is either PACK-TN or ASSIGN-TN-COSTS.
2018-01-06T17:54:02Z nyef``: ... except that ASSIGN-TN-COSTS can be disabled.
2018-01-06T17:56:16Z nyef``: And I don't know if these TNs are affected by PACK-ITERATIVE or PACK-GREEDY...
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2018-01-06T18:02:02Z nyef``: ... Okay, TN-COST defaults to zero. Which means that if cost assignment isn't done, then we'll hit the obnoxious case every time.
2018-01-06T18:06:05Z nyef``: So, have to presume that PACK-TN is required... Can we know at PACK-TN time if a specified-save is going to be used or not?
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2018-01-06T18:37:57Z stassats: what are you trying to achieve?
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2018-01-06T18:51:26Z nyef``: If the TN produced by MAKE-OLD-FP-SAVE-LOCATION or MAKE-RETURN-PC-SAVE-LOCATION gets saved then it should be allocated coincidental to its (specified) SAVE-TN.
2018-01-06T18:51:55Z nyef``: Which currently happens *sometimes*, but it's fairly easy to make it not happen.
2018-01-06T18:53:04Z nyef``: And if it doesn't happen, then there's a race condition with backtrace through escaped frames.
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2018-01-06T18:55:04Z nyef``: I'm fairly sure that there's further, related damage in this overall mess, but it would have to do with debug-vars rather than backtrace.
2018-01-06T18:57:32Z nyef``: As it stands now, though, there's a race condition in backtrace and it only works at all because there's a specific override for the common case.
2018-01-06T18:58:26Z nyef``: If I can get the compiler to do the right thing then the race condition goes away and I can get rid of the specific override, which simplifies some of the affected logic a bit.
2018-01-06T19:02:36Z stassats: so, not on arm* or x86*, i.e. not important
2018-01-06T19:09:08Z nyef``: No, not on the poor, register-starved architectures.
2018-01-06T19:09:26Z stassats: well, arm64 isn't register starved
2018-01-06T19:09:40Z nyef``: It certainly acts like it is.
2018-01-06T19:11:21Z stassats: by providing more registers to running code?
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2018-01-06T19:59:26Z stassats: a single ir2 block straddling two ir1 blocks
2018-01-06T20:00:32Z stassats: the ir1 blocks aren't merged because of cleanups
2018-01-06T20:04:20Z stassats: happens right after ir2-convert
2018-01-06T20:05:10Z stassats: i suppose that might be normal and it shouldn't look at (block-succ ir2-block-block), but (block-succ (node-block last-vop))
2018-01-06T20:07:51Z stassats: still strange
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2018-01-06T20:10:05Z stassats: stranger still
2018-01-06T20:15:31Z stassats: the cif is not even ir2-converted
2018-01-06T20:17:16Z stassats: BRANCH-IF coming is from EQ
2018-01-06T20:17:45Z stassats: but the actual call to EQ and IF are split into different blocks
2018-01-06T20:18:04Z stassats: can that break anything besides CMOV conversion?
2018-01-06T20:21:37Z pkhuong: are the test and branch VOPs in different ir2 blocks as well?
2018-01-06T20:22:08Z stassats: no, that's the problem, EQ pulls in both EQ and BRANCH-IF into the same ir2 block
2018-01-06T20:22:18Z pkhuong: ohh. yeah :\
2018-01-06T20:22:30Z stassats: from (lambda () (let ((v (list 0))) (if (block nil (eq v (cdr v))) 1)))
2018-01-06T20:22:41Z stassats: (block nil ...) is prevent thing IR1 blocks from being merged
2018-01-06T20:23:16Z pkhuong: we should have one EQ -> cmov for the block and another EQ outside the block...
2018-01-06T20:23:25Z pkhuong: I guess something weird happened to the LVAR
2018-01-06T20:23:45Z stassats: it seems to be working as intended, just that nobody expected this to happen
2018-01-06T20:26:51Z stassats: a comment in ltn-analyze-if suggest something to the contrary
2018-01-06T20:27:04Z stassats: "Since we only use a conditional template if the call immediately precedes the IF node in the same block"
2018-01-06T20:29:55Z stassats: and that's not actually true
2018-01-06T20:30:00Z stassats: it's just immediately-used-p
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2018-01-06T20:30:18Z stassats: which does cross block boundaries
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2018-01-06T20:31:01Z stassats: i can't find a fault in that for this particular code
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2018-01-06T20:37:43Z stassats: now to come up with a fix to cmov conversion
2018-01-06T20:51:15Z pkhuong: the assumption was definitely that the two VOPs would land in the same IR2 block, terminated by the branch
2018-01-06T20:51:38Z stassats: and they do
2018-01-06T20:52:15Z stassats: but CMOV looks for successor blocks through IR1, but CIF is in a different IR1 block
2018-01-06T20:52:32Z pkhuong: I see. I don't think I want to page in more IR1 memories.
2018-01-06T20:52:46Z stassats: solved by attaching the CIF to BRANCH-IF, not the EQ combination
2018-01-06T20:52:53Z stassats: and then grabbing its node-block
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2018-01-06T20:54:39Z stassats: it'll take more effort to write a good commit message than to come up with a this
2018-01-06T20:54:41Z stassats: a fix
2018-01-06T20:54:56Z nyef``: ... At this point, I think that my best bet is to hack up the TN in ASSIGN-TN-COSTS, and to have an alternate path (for when we don't call ASSIGN-TN-COSTS) to check to see if the TNs need to be hacked up anyway.
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2018-01-07T04:22:38Z jackssb: ▄▄▄▄▄▄▄▄▄▄▄▄▄▄ LRH IS LIVE NOW!! TODAYS EDITION SLIMER GETS FUCKED IN VEGAS!! https://www.youtube.com/user/l0de/live CALL 315-505-4666 roslpuih: alandipert libreman rgrau ▄▄▄▄▄▄▄▄▄▄▄▄

2018-01-07T04:22:39Z jackssb: ▄▄▄▄▄▄▄▄▄▄▄▄▄ LRH IS LIVE NOW!! TODAYS EDITION SLIMER GETS FUCKED IN VEGAS!! https://www.youtube.com/user/l0de/live CALL 315-505-4666 dobrnb: myrkraverk jack_rabbit pfdietz ▄▄▄▄▄▄▄▄▄▄▄▄

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2018-01-07T15:42:13Z nyef``: Okay, hacking up ASSIGN-TN-COSTS worked. Progress!
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2018-01-07T20:39:49Z nyef``: ... Oh, FFS. MAKE-BOGUS-LRA has taken to corrupting random code objects now?
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2018-01-07T20:43:16Z nyef``: ... surely that's not what's going on?
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2018-01-07T22:11:17Z nyef``: Hrm. bogus-lra-constants is 1, and code-constants-offset is 4, so the logandc2 gives 4.
2018-01-07T22:11:27Z nyef``: Oh, FFS. n-word-BITS as an offset?!?
2018-01-07T22:11:51Z nyef``: Yes, let's randomly corrupt the heap every time we make a bogus LRA.
2018-01-07T22:13:09Z nyef`` misses being able to slam code changes.
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2018-01-07T23:27:19Z nyef``: ... what's NTH-VALUE-OF-NON-CONSTANT-N ?
2018-01-07T23:29:32Z stassats: huh?
2018-01-07T23:30:28Z nyef``: It's a test case as of August 2014. And it just failed for me on PPC.
2018-01-07T23:30:42Z stassats: did you break it?
2018-01-07T23:31:05Z nyef``: I fail to see how I would have.
2018-01-07T23:31:13Z nyef``: Doesn't mean that I didn't, of course.
2018-01-07T23:31:45Z stassats: well, it's about &more and stuff
2018-01-07T23:33:24Z nyef``: Re-running the test file now, to see if I can get more information.
2018-01-07T23:33:40Z stassats: otherwise it'd be "did i break it?"
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2018-01-07T23:40:06Z nyef``: Oh, lovely. It's intermittent.
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2018-01-07T23:44:21Z stassats: does it cons?
2018-01-07T23:55:04Z nyef``: I don't know.
2018-01-07T23:55:55Z nyef``: Just had dinner, and now trying to finish up the stuff that was in my working tree. *Then* maybe investigate further.
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2018-01-08T00:00:48Z nyef``: When TRACEing a function that is being called with incorrect arguments, should we be seeing the trace of entering the function before getting the arg-count-error?
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2018-01-08T00:20:35Z stassats: what kind of trace?
2018-01-08T00:21:58Z nyef``: CL:TRACE, of course. d-:
2018-01-08T00:22:26Z nyef``: But, yeah, I'm thinking of the behavior of TRACE :ENCAPSULATE NIL here.
2018-01-08T00:23:22Z stassats: it'd be helpful to behave the same way as :encapsulate t, i.e. before
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2018-01-08T00:24:24Z nyef``: And, since :ENCAPSULATE T does the trace output before the arg-count check, so should :ENCAPSULATE NIL?
2018-01-08T00:24:45Z stassats: yes
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2018-01-08T00:30:37Z nyef``: Checking on the NTH-VALUE-OF-NON-CONSTANT-N thing now.
2018-01-08T00:37:23Z nyef``: ... Nothing obvious.
2018-01-08T00:40:25Z nyef``: Sure, there's consing, but seems to be for the asserts.
2018-01-08T00:40:35Z nyef``: ... Should it be using GENERIC-= when one side is a constant FIXNUM?
2018-01-08T00:40:48Z stassats: nothing's failing here on ppc
2018-01-08T00:41:02Z nyef``: Or does that get into numeric contagion territory?
2018-01-08T00:41:16Z nyef``: Yeah, as I said, it failed *ONCE*. When I tried to re-run, it didn't fail.
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2018-01-08T00:42:53Z nyef``: I'm about ready to chalk it up to a just-about-to-be-full alloc_region, plus overhead on ctu:assert-no-consing pushing things over the limit.
2018-01-08T00:43:27Z stassats: nyef``: (= (the integer x) 10) doesn't use generic-=
2018-01-08T00:44:03Z nyef``: Does (= (funcall f) 10) use generic-=, though?
2018-01-08T00:44:20Z stassats: what else could it be using?
2018-01-08T00:46:58Z nyef``: EQL? Or does that not apply when one side could be a float?
2018-01-08T00:47:34Z stassats: (= (funcall (constantly 10f0)) 10) => T
2018-01-08T00:47:36Z stassats: clhs =
2018-01-08T00:47:36Z specbot: http://www.lispworks.com/reference/HyperSpec/Body/f_eq_sle.htm
2018-01-08T00:48:56Z nyef``: clhs 12.1.4.1
2018-01-08T00:48:57Z specbot: Rule of Float and Rational Contagion: http://www.lispworks.com/reference/HyperSpec/Body/12_ada.htm
2018-01-08T00:50:15Z nyef``: So, GENERIC-= is the right thing here.
2018-01-08T00:50:17Z stassats: now, (defun foo (x) (= x most-positive-fixnum)) could be done using EQL
2018-01-08T00:58:44Z stassats: and (= (the (complex rational) x) rational) can be folded to NIL
2018-01-08T01:01:54Z nyef``: So, I still need to figure out what's what with fun-end-cookie-valid-p, and there's still some backtrace damage to sort out, but I think that things are starting to come together.
2018-01-08T01:02:40Z stassats: (= (the (complex rational) x) rational) is easy to optimize, but do we really need the complexity of (= x most-positive-fixnum) folding to EQ?
2018-01-08T01:02:59Z stassats: or (= (the float x) most-positive-fixnum) to NIL?
2018-01-08T01:03:17Z stassats: would it give us a competitive advantage?
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2018-01-08T01:09:56Z stassats: no cadaddr, ugh!
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2018-01-08T01:15:22Z stassats: (= #C(10.0 0.0) (complex rational)) is also NIL
2018-01-08T01:16:01Z stassats: i'll put that into notes, for things to do when we run out of ideas
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2018-01-08T01:46:37Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2835: FAILURE in 12 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2835/
2018-01-08T01:53:59Z nyef``: ... that's not from my changes, is it?
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2018-01-08T08:15:59Z corci: Project sbcl-master » ccl,ubuntu_trusty_32bit build #2835: FAILURE in 6 hr 42 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_32bit/2835/
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2018-01-08T08:48:26Z corci: Yippee, build fixed!
2018-01-08T08:48:27Z corci: Project sbcl-master » ccl,ubuntu_trusty_32bit build #2836: FIXED in 27 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_32bit/2836/
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2018-01-08T08:54:34Z corci: Yippee, build fixed!
2018-01-08T08:54:35Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2836: FIXED in 33 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2836/
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2018-01-08T14:56:02Z stassats: huh, a whole function gets deleted even though there's nothing wrong with the code, just some parts folding to NIL
2018-01-08T14:56:12Z stassats: that usually happens when something is derived to be of type NIL
2018-01-08T14:58:23Z nyef``: I'm hoping to be (mostly?) finished with backtrace stuff at some point this week... and moving on to trace, and possibly breakpoints.
2018-01-08T15:06:41Z stassats: doesn't seem particularly tricky, just really strange
2018-01-08T15:06:52Z stassats: an inlining problem?
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2018-01-08T15:11:03Z pfdietz: The argument (not y) only makes sense there if it evaluates to NIL, in which case the result is NIL and the function never gets called.
2018-01-08T15:11:38Z stassats: i'm past NOT already
2018-01-08T15:11:52Z stassats: and no more MAP either
2018-01-08T15:11:57Z pfdietz: Huh
2018-01-08T15:12:19Z stassats: but the code is still correct, yet it throws out the whole thing
2018-01-08T15:12:28Z pfdietz: I'm seeing I missed a lot in the earlier random tester by restricting it to mostly integer-valued expressions.
2018-01-08T15:20:18Z stassats: the local function gets expanded twice, once for the XEP, but the XEP is not called
2018-01-08T15:20:31Z stassats: so it goes haywire somewhere around that
2018-01-08T15:20:43Z stassats: (defun foo () (declare (optimize (debug 1))) (let* ((z (block nil (labels ((f (x) (return x)) (c (fun) (funcall (the function fun) fun))) (declare (inline f)) (c #'f))))) (and z 1)))
2018-01-08T15:20:44Z stassats: reduced
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2018-01-08T15:26:38Z nyef``: Is this the "inlining and local functions doesn't properly copy the IR1 structure of the inline functions" thing again?
2018-01-08T15:26:50Z stassats: don't think so
2018-01-08T15:33:03Z stassats: ok, the function doesn't return normally
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2018-01-08T15:50:10Z stassats: ok, i think i see
2018-01-08T15:50:57Z stassats: two inlined functions, exit through the same block, one is determined to be never called, gets deleted, its return is deleted, and everything following that return is deleted
2018-01-08T15:53:06Z stassats: but why does it delete other blocks even they have other predecessors?
2018-01-08T15:58:05Z stassats: i'm still not following how mark-for-deletion is deleting preceding blocks
2018-01-08T16:04:26Z stassats: or is it deleting no the return, but the function that calls the non-dead lambda?
2018-01-08T16:04:30Z stassats: making it dead?
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2018-01-08T16:23:24Z stassats: maybe external references are inserted into the IR1 somehow wrongly?
2018-01-08T16:23:36Z stassats: because it doesn't fail without external references
2018-01-08T16:25:06Z stassats: now i can transform it into a different error
2018-01-08T16:28:14Z stassats: or into a different form
2018-01-08T16:28:18Z stassats: (defun foo () (declare (optimize (debug 1) speed)) (let ((z (block nil (labels ((f (x) (return x))) (declare (inline f)) (funcall (the function #'f) t) (funcall (the function #'f) t))))) (and z 1)))
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2018-01-08T16:32:43Z stassats: demonstrates a different failure path, but probably still the same
2018-01-08T16:33:00Z stassats: cause
2018-01-08T16:33:40Z stassats: ok, need to study ir1 conversion and block insertion for local functions and external references to them
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2018-01-08T16:34:06Z stassats: since the behavior doesn't make any sense so far
2018-01-08T16:37:09Z stassats: maybe some bogus inlining
2018-01-08T16:37:31Z stassats: well, it's already known to be bogus, especially around xeps, bot not on that path
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2018-01-08T16:38:07Z stassats: oh wait, this is exactly the same thing, isn't it?
2018-01-08T16:38:15Z stassats: lp 1523149
2018-01-08T16:38:15Z specbot: https://bugs.launchpad.net/bugs/1523149
2018-01-08T16:42:41Z stassats: i think i have more know-how to fix it now, though it's still tricky
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2018-01-08T17:29:54Z genera`: Has anyone encountered an issue on Linux where SBCL seems to get stuck in a loop when loading something with quicklisp? It consumes 100% CPU and the heap seems to get thrashed.
2018-01-08T17:31:30Z nyef``: That's a new one by me?
2018-01-08T17:32:12Z genera`: I'll report a bug then, thank you.
2018-01-08T17:32:39Z Shinmera: genera`: By "something" you mean "anything" or "one system in particular"?
2018-01-08T17:33:07Z genera`: It seems to be anything quicklisp related, even modifying variables in a quicklisp package. No, I don't understand this at all.
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2018-01-08T17:35:19Z scymtym: if the variable modification leads to e.g. NIL being called as a function and if, at the same time, a handler like ((handler-bind ((error #'continue)) …)) is active, such behavior could result
2018-01-08T17:36:12Z scymtym: (this is my pet peeve regarding our (otherwise awesome) undefined function restart having the name CONTINUE)
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2018-01-08T17:46:12Z nyef``: I can see a TRY-AGAIN, I can see a USE-VALUE, but CONTINUE makes no sense as a restart name there.
2018-01-08T17:46:49Z nyef``: "Something happened, and we can't continue. Now what?" "Simon Says: CONTINUE anyway." "Oh, okay."
2018-01-08T17:48:03Z nyef``: Also note that calling CONTINUE when there is no CONTINUE restart would be an ERROR.
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2018-01-08T17:54:52Z scymtym: nyef``: are you sure? the page for CONTINUE says "If no such restart exists, the functions continue, store-value, and use-value return nil …"
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2018-01-08T18:05:38Z nyef``: Ah, okay. Fair enough, more or less.
2018-01-08T18:05:50Z nyef``: Wait, that causes the handler to decline.
2018-01-08T18:06:11Z scymtym: which would actually be good for undefined function
2018-01-08T18:08:54Z stassats: it's "CONTINUE using the same function name"
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2018-01-08T20:47:51Z nyef``: Hunh. SINGLE-STEP-INFO-FROM-CONTEXT isn't interrupt-safe on non-x86oids.
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2018-01-08T21:52:50Z nyef``: ... Ugh. And there is what seems to be a fundamental assumption in the debugger logic that the mere fact that there is an interrupt context for a stack frame (an "escaped" frame) changes where variables can be stored.
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2018-01-08T21:56:30Z nyef``: Oh, FFS. If a :SAVE-ONCE TN is assigned from an escaped frame, the save location doesn't get updated, so the next time it is reloaded the old value reappears.
2018-01-08T22:09:14Z nyef``: Hell, I wouldn't be surprised if I could trigger this *from a single-step trap*.
2018-01-08T22:11:56Z nyef``: ... holy shit... setting anything that has been packed to a register from a single-step-around-trap can corrupt the call state.
2018-01-08T22:22:13Z nyef``: clim imagpart
2018-01-08T22:22:16Z nyef``: Err...
2018-01-08T22:22:18Z nyef``: clhs imagpart
2018-01-08T22:22:18Z specbot: http://www.lispworks.com/reference/HyperSpec/Body/f_realpa.htm
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2018-01-08T23:04:47Z dougk: stassats: i haven't been following closely enough (while on vacation), but did you possibly cause new warnings in 3rd party code like "in lisp/antik/foreign-array/subclass.lisp ... caught STYLE-WARNING:;   undefined type: GRID::FOREIGN-ARRAY"?
2018-01-08T23:05:01Z dougk: This is code that compiled cleanly before I went away. Came back. Integrated. Doesn't compile
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2018-01-08T23:07:54Z stassats: i did cause it, now to check if it's legitimate
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2018-01-08T23:14:48Z stassats: dougk: i'm not getting any undefined type warnings
2018-01-08T23:15:10Z stassats: what i'm getting, though, ;   Undefined functions:
2018-01-08T23:15:10Z stassats: ;     ANTIK:DAY ANTIK:WITH-SYSTEM-OF-UNITS
2018-01-08T23:15:10Z stassats: ;   Undefined variables:
2018-01-08T23:15:12Z stassats: ;     ANTIK:*ZERO-IS-DIMENSIONLESS* GSLL::CHISQ GSLL::RANK
2018-01-08T23:23:03Z stassats: something from git, can't even compile gsll from quicklisp, it has some bad argument matches
2018-01-08T23:27:32Z stassats: so, i have no idea what's going on with antik, but its compilation is anything but clean
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2018-01-08T23:29:45Z stassats: but (subtypep x 'undefined-type) is now signalling a style-warning
2018-01-08T23:29:58Z stassats: so, it's on antik if it's not loading things in the right order
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2018-01-09T00:31:40Z pfdietz: If I find a bunch of CL: functions with source transforms that don't catch argument macro errors, should I create a separate ticket for each one?
2018-01-09T00:32:32Z stassats: pfdietz: the best way to ensure that nothing is missed
2018-01-09T00:33:07Z pfdietz: Ok.  At least my activity count will go up.   Reminds me of minimal publishable units from academia.
2018-01-09T00:33:17Z stassats: but let me grep for macroexpand first
2018-01-09T00:34:36Z stassats: found at least one
2018-01-09T00:38:51Z stassats: but not more
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2018-01-09T00:41:32Z stassats: pfdietz: what kind of compilation are you using?
2018-01-09T00:41:43Z stassats: compile?
2018-01-09T00:42:28Z stassats: then you're not exercising the fop compiler, which processes simple top-level forms in compile-file
2018-01-09T00:42:50Z stassats: also, care to test the interpreter[s]?
2018-01-09T00:44:25Z stassats: (like i don't have enough bugs to care for)
2018-01-09T00:46:49Z stassats: pfdietz: but the ldb/pdb macroexpand issues were coming from the same code, so if things come from the same invocation of macroexpand, then a single ticket will do
2018-01-09T00:54:08Z pfdietz: I use compile, but then I also just give (lambda () ...) to the command line.
2018-01-09T00:54:51Z stassats: compile-file behaves differently and have its own bugs, even not accounting for fop-compilation
2018-01-09T00:55:09Z pfdietz: The current code is not designed to run, just be compiled.  I would expect it to almost always error when EVALed.
2018-01-09T00:55:25Z pfdietz: The older random tester had an eval mode.
2018-01-09T00:57:36Z pfdietz: (looks up compile-file)  Cannot be used with streams, alas (unless the streams are for files).
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2018-01-09T00:59:06Z stassats: well, is there a difficulty with creating files?
2018-01-09T00:59:51Z pfdietz: No.
2018-01-09T01:00:29Z pfdietz: What are "simple" forms, btw?
2018-01-09T01:01:08Z stassats: whatever fop-compile decides is simple
2018-01-09T01:01:27Z stassats: the decision itself may produce errors
2018-01-09T01:02:31Z pfdietz: Ok, I'll start by adding a mode to the old random tester.
2018-01-09T01:04:03Z stassats: but compile-file (lambda () ) or (defun foo ()) would test things as well
2018-01-09T01:05:20Z stassats: so for full covereage you'll need (compile nil `(lambda () FORM)) (eval `(lambda () FORM)) (eval FORM) (compile-file FORM) (compile-file (lambda () FORM))
2018-01-09T01:05:32Z stassats: maybe also LOAD
2018-01-09T01:06:02Z stassats: and EVAL with different *evaluator-mode*,  probably compiled with sb-fasteval, instead of the default sb-eval
2018-01-09T01:24:58Z dougk: stassats: is "#<SB-KERNEL:BUILT-IN-CLASSOID FUNCTION (read-only)> is not of type SB-KERNEL:FUN-TYPE" supposed to have been fixed? iirc somebody found it (pfdietz would be my guess), but I have it in production code now and didn't used to
2018-01-09T01:25:22Z stassats: it should have been fixed, yes
2018-01-09T01:26:44Z dougk: ok, then i suspect i can get you a different repro because I've now got all changes through my latest weak-hash plus locally patched 3rd-party random fixes, and have this error now
2018-01-09T01:29:52Z stassats: i was able to come up with a test on my own
2018-01-09T01:29:59Z pfdietz: Thank you for the weak stuff speedup, btw.
2018-01-09T01:30:15Z stassats: although yours may be different
2018-01-09T01:31:25Z stassats: ironically, my test is failing in your code
2018-01-09T01:31:47Z stassats: (lambda (x y) (find x y :key #'values))
2018-01-09T01:31:57Z dougk: uh oh, which of "my" code ?
2018-01-09T01:32:06Z stassats: a find transform
2018-01-09T01:32:23Z stassats: err, the type deriver
2018-01-09T01:42:04Z corci: Project sbcl-master-windows » Windows_7_64bit build #1731: FAILURE in 4 hr 1 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_64bit/1731/
2018-01-09T01:47:46Z stassats: (:TWO-THREADS-RUNNING-GC), very nice
2018-01-09T01:49:41Z stassats: dougk: fixed the find issue, see if it's still causing problems on your side
2018-01-09T01:54:26Z nyef``: Looks like either something broke a safepoint case recently, or there's a rare condition that's cropping up more often?
2018-01-09T01:54:47Z stassats: it's just the windows port
2018-01-09T01:54:59Z nyef``: (There were a couple of ubuntu safepoint failures earlier.)
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2018-01-09T02:11:47Z corci: Yippee, build fixed!
2018-01-09T02:11:48Z corci: Project sbcl-master-windows » Windows_7_64bit build #1732: FIXED in 29 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_64bit/1732/
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2018-01-09T03:42:30Z nyef``: Hrm... So, there's this concept of a "fun-end-cookie" that can be used to check something about if the frame that "established" the cookie has exited or not. But ntrace is the only user (because it's the only thing that uses breakpoints), and it doesn't need to do so for encapsulated tracing because the capsule does a dynamic bind of the list of established traces.
2018-01-09T03:43:33Z nyef``: And TRACE :ENCAPSULATE NIL can't do the dynamic bind trick because it runs in the context of an interrupt handler, which establishes its own dynamic binding.
2018-01-09T03:44:47Z nyef``: I'm fairly sure that I can wedge something in the path to set up the binding, though.
2018-01-09T03:49:03Z nyef``: Can even have a per-thread list of still-active bogus-LRAs, but the conses would be heap-allocated...  Of course, so are the bogus-LRAs, so that's not a loss.
2018-01-09T03:51:31Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2839: FAILURE in 6 hr 42 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2839/
2018-01-09T03:59:53Z nyef``: ... "it's just the windows port", huh?
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2018-01-09T14:33:04Z stassats: more weird IR1 invariants
2018-01-09T14:34:15Z stassats: ltn is expecting a tail local call to follow to the bind it calls, but here the next block is the component-tail block
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2018-01-09T14:46:07Z nyef``: ... because not all calls to the bind are tail-local, or there's more than one such call?
2018-01-09T14:46:36Z stassats: multiple blocks can go to the bind, so that's not a problem
2018-01-09T14:47:10Z nyef``: recursive tail local call, or pair of mutually-recursive such calls?
2018-01-09T14:47:36Z stassats: it's recursive
2018-01-09T14:48:16Z stassats: but that's not the cause either
2018-01-09T14:53:59Z stassats: even the subtlest of modifications to the IR make the bug disappear
2018-01-09T14:57:09Z stassats: (lambda (x) (declare (optimize (debug 1) (SB-C::LET-CONVERSION 0))) (labels ((%f1 () (multiple-value-call #'print t (values-list (if x '(t) nil))) (%f1))) (identity (%f1))))
2018-01-09T14:57:17Z stassats: the smallest IR1 i can reduce to
2018-01-09T14:58:27Z stassats: now to figure out when it goes disvariant
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2018-01-09T15:05:25Z stassats: it already comes to maybe-convert-tail-local-call pointing to component-tail
2018-01-09T15:05:35Z pfdietz: I make local changes when reducing these (removing arguments and the like) and anonymizing the names.  That one was derived from cl-graph.
2018-01-09T15:05:54Z stassats: and when i disable maybe-convert-tail-local-call, it doesn't cause any trouble to ltn
2018-01-09T15:06:20Z stassats: pfdietz: i'm minimizing to the IR, not necessarily to source code
2018-01-09T15:06:28Z stassats: usually both
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2018-01-09T15:11:55Z stassats: what's really weird—the contents of the local function influence what follows after the call
2018-01-09T15:12:22Z stassats: (multiple-value-call #'print t (values-list (if x '(t) nil))) in particular
2018-01-09T15:12:38Z stassats: it needs a branch, and mv-call, and the first T is also required
2018-01-09T15:29:09Z stassats: going to the very beginning, both good and bad IRs start out pointing to component-tail
2018-01-09T15:30:11Z karlosz: is there a good is there an easy way to get a handle on an ir object and follow the optimizations done on it?
2018-01-09T15:30:44Z stassats: no
2018-01-09T15:31:29Z karlosz: :(
2018-01-09T15:31:50Z stassats: if there were you wouldn't need me
2018-01-09T15:32:06Z stassats: we don't want compiler hacking to be easy and everyone stealing the glory
2018-01-09T15:33:17Z karlosz: im hacking on an ir1 viewer that can currently make a flow graph for the clambda resulting from make functional from toplevel lambda
2018-01-09T15:33:51Z karlosz: ideally it would be able to animate the differences between each optimization step
2018-01-09T15:48:16Z stassats: maybe-convert-tail-local-call does (link-blocks block (lambda-block fun)), so something later breaks the chain
2018-01-09T15:49:01Z dougk: karlosz: you probably want to ask scymtym about an IR viewer. it sounds redundant with other WIP
2018-01-09T15:49:40Z stassats: the more the merrier, especially if it doesn't involve mcclim
2018-01-09T15:50:41Z karlosz: stassats: ive got some bad news then...
2018-01-09T15:50:53Z stassats: ha-ha
2018-01-09T15:51:31Z stassats: well, visualizing IR is a good way to learn IR, at least the static part
2018-01-09T15:52:03Z Xof: David Lichteblau had something like that a long time ago
2018-01-09T15:52:15Z scymtym: karlosz: in that case, did you check out http://www.lichteblau.com/blubba/irspect.png , http://www.lichteblau.com/git/?p=irspect.git;a=summary
2018-01-09T15:52:20Z karlosz: yeah, i had a lot of trouble visualizing the cfg until i saw the structure
2018-01-09T15:52:37Z karlosz: scymtym: i did not, thanks
2018-01-09T15:52:44Z scymtym: ah, Xof beat me to it
2018-01-09T15:52:52Z Xof: http://www.lichteblau.com/blubba/irspect.png
2018-01-09T15:53:03Z Xof: yes, there it is
2018-01-09T15:53:29Z Xof: also http://www.lichteblau.com/blubba/nodes.png
2018-01-09T15:53:40Z Xof: (I miss ABCL-on-Cloak-on-SBCL)
2018-01-09T15:54:03Z stassats: i can visualize the IR with print-all-blocks alright, what i need is recording every change to the IR
2018-01-09T15:56:02Z Xof: IR to SVGAnimation
2018-01-09T15:56:28Z karlosz: scymtym: is the second link you gave me broken? i get a perl error
2018-01-09T15:57:50Z scymtym: karlosz: seems that way. i didn't try it. there seems to be a tarball at http://www.lichteblau.com/blubba/irspect-2007-03-19.tgz
2018-01-09T15:58:23Z karlosz: great, that worked
2018-01-09T16:01:02Z stassats: maybe-terminate-block appears to be linking the call to component-tail
2018-01-09T16:03:49Z karlosz: https://paste.gnome.org/ppz0btaa9
2018-01-09T16:03:58Z karlosz: in case anyone is interested, thats the sort of flow graph i print now
2018-01-09T16:04:28Z karlosz: ( a ps file)
2018-01-09T16:08:04Z stassats: maybe-terminate-block is called on the non-failing version as well
2018-01-09T16:08:13Z stassats: so what's the deal
2018-01-09T16:10:41Z stassats: but then it gets linked back to the lambda-bind
2018-01-09T16:11:11Z stassats: so why does it bother unlinking just to link back up, and then sometimes failing to do the latter
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2018-01-09T16:17:17Z stassats: huh, set-tail-local-call-successor is actually where it gets set back, yet it's failing there
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2018-01-09T16:19:56Z stassats: i've been chasing the wrong thing, haven't i? but raised some question about maybe-terminate-block, so it's not all a waste
2018-01-09T16:22:13Z stassats: ok, fixup-ir2-blocks-for-split-block is just broken, and mv-call is required to break it
2018-01-09T16:22:18Z scymtym: karlosz: this is the one dougk was referring to earlier: https://techfak.de/~jmoringe/25.png . that's only graphviz, though
2018-01-09T16:23:28Z stassats: don't tell me it's a stack-analyze problem
2018-01-09T16:24:35Z stassats: it kinda is, at least fixup-ir2-blocks-for-split-block is from nyef``
2018-01-09T16:29:34Z stassats: paging nyef``
2018-01-09T16:29:55Z karlosz: *compile-ir-obj-map* is unbound
2018-01-09T16:30:17Z karlosz: guess things have changed in the last 10 years
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2018-01-09T16:36:59Z nyef``: ECHO REPLY
2018-01-09T16:37:16Z nyef``: What are we looking at?
2018-01-09T16:37:23Z stassats: nyef``: so, fixup-ir2-blocks-for-split-block isn't as robust as promised
2018-01-09T16:37:30Z nyef``: File?
2018-01-09T16:37:36Z stassats: ltn
2018-01-09T16:39:00Z stassats: set-tail-local-call-successor calls node-ends-block, but the node is already the last node, and the next block is component-tail, then fixup-ir2-blocks-for-split-block chokes on component-tail not having ir2-info, which it claims not to want anyway
2018-01-09T16:40:24Z stassats: so the questions are, why does it perform work when nothing is really split?
2018-01-09T16:40:56Z stassats: and is that enough to fix it?
2018-01-09T16:41:11Z nyef``: Hrm.
2018-01-09T16:41:45Z nyef``: Yeah, I don't remember what this is doing or why.
2018-01-09T16:45:01Z stassats: i'm doing the obvious thing then
2018-01-09T16:46:08Z nyef``: Checking to see if (BLOCK-LAST (NODE-BLOCK CALL)) is CALL, and not bothering with the call to NODE-ENDS-BLOCK and the resulting fixups if it is?
2018-01-09T16:46:39Z stassats: something like that
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2018-01-09T17:04:32Z stassats: fixed just in time for a new report
2018-01-09T17:08:12Z stassats: that one is easy
2018-01-09T17:09:03Z stassats: although the ltn one is easy too, i was just looking into the wrong place, but i guess i wouldn't have been able to be sure the fix is right without some research first
2018-01-09T17:20:52Z stassats: darn, Proclaiming SB!C::NODE-TO-BE-DELETED-P to be INLINE
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2018-01-09T20:45:23Z nyef``: Is there some way to find out what caused a build failure on a parallel build without either re-running the build non-parallel or having piped the entire build process through tee in the first place?
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2018-01-09T21:21:38Z karlosz: okay, fixed the problem with irspect by wrapping the toplevel function with with-compilation-values
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2018-01-09T23:44:54Z aeth: I'm wondering if my description of consing and how to avoid consing in 64-bit SBCL is technically accurate. https://gitlab.com/zombie-raptor/zombie-raptor/blob/5e0f01a21cd1b3359925f726eddff9237f02d3ff/CONTRIBUTING.md#consing-heap-allocations
2018-01-09T23:45:44Z aeth: Maybe I should also add in all of the ways to profile for consing, too?
2018-01-09T23:46:05Z stassats: sb-sprof does that
2018-01-09T23:46:15Z stassats: and floats and integers can be put into structures
2018-01-09T23:47:05Z aeth: Structures that aren't really arrays?
2018-01-09T23:47:17Z stassats: structures that are structures
2018-01-09T23:47:39Z aeth: okay
2018-01-09T23:47:47Z aeth: "or in specialized arrays or in structs"
2018-01-09T23:48:23Z stassats: closures will cons as well, unless dx allocated
2018-01-09T23:48:52Z aeth: I'm aware of that (through profiling) but I should add that, too. Thanks
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2018-01-09T23:49:15Z stassats: for now, (mapcar closure) isn't optimized
2018-01-09T23:49:28Z stassats: but it will be in some not too distant future
2018-01-09T23:49:41Z aeth: yeah, I found that out by using alexandria's curry and rcurry
2018-01-09T23:49:48Z aeth: I had to remove that from the game loop code
2018-01-09T23:50:01Z aeth: It would be nice if I could use those again
2018-01-09T23:50:39Z stassats: ok, i'm leaving the closures to always cons, just to avoid seeing CURRY in your code
2018-01-09T23:51:09Z aeth: haha
2018-01-09T23:51:50Z aeth: I'm already past the stage of overusing it. Everyone overuses something when they first find out about it.
2018-01-09T23:52:15Z nyef``: Save CURRY for your dinner table. d-:
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2018-01-09T23:52:54Z stassats: goes well with spaghetti code, that's what i feed my dining philosophers
2018-01-09T23:53:02Z nyef``: Heh!
2018-01-09T23:53:15Z aeth: I think I'll also add a note that "Type declarations for arrays and numbers can make consing code no longer cons."
2018-01-09T23:54:01Z aeth: I'll also note that pre-allocating closures before the loop can also work
2018-01-09T23:54:53Z aeth: What are the ways to detect consing? disassemble, sb-profile, sb-sprof... maybe I should also include sb-disassem:disassemble-code-component?
2018-01-09T23:56:34Z nyef``: Check to see if SB-KERNEL::*GC-EPOCH* has changed? Okay, technically that doesn't detect consing, it detects GCing...
2018-01-09T23:56:51Z aeth: room might check blatant consing. That's how I found out some of my double-float code was bad
2018-01-09T23:57:16Z aeth: Unfortunately, in the typical environment (Emacs+SLIME), the program isn't the only thing running, so you'll detect Swank's consing, too
2018-01-09T23:57:36Z stassats: it's not significant
2018-01-09T23:58:56Z nyef``: Arrange to close the current alloc region, then check to see if a new one has been reopened?
2018-01-09T23:59:13Z aeth: I currently am just listing: disassemble (or sb-disassem:disassemble-code-component), sb-profile, and sb-sprof
2018-01-09T23:59:28Z aeth: I might add room, even though that's not perfect... checking room for significant changes will probably reveal something, though
2018-01-10T00:01:09Z stassats: all the compiler correctness stuff is taking up too much time, i can't focus on something more interesting
2018-01-10T00:01:18Z stassats: damn the incorrect compiler writers
2018-01-10T00:02:27Z stassats: hopefully, the compiler bugs will soon run out
2018-01-10T00:03:36Z nyef``: And then you can move on to PCL bugs?
2018-01-10T00:04:05Z stassats: no, thanks
2018-01-10T00:05:13Z stassats: at least there is a benefit in compiler bugs (aside from the malformed code stuff), in illuminating the compiler intricacies. what's there to illuminate in PCL? it's all rotten
2018-01-10T00:06:36Z nyef``: Mmm. Should my attention turn to PCL, about the first thing I do is follow through on package-locking CALL-NEXT-METHOD, as CLHS mandates.
2018-01-10T00:06:41Z aeth: Okay, I updated my (at the moment SBCL-oriented) consing notes with the additions and corrections discussed here: https://gitlab.com/zombie-raptor/zombie-raptor/blob/master/CONTRIBUTING.md#consing-heap-allocations
2018-01-10T00:06:58Z aeth: oops, probably should have permalinked that
2018-01-10T00:07:18Z nyef``: Meanwhile, the debugger is probably going to take me months to sort out. /-:
2018-01-10T00:08:19Z stassats: the compiler is taking me years to sort out
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2018-01-10T00:08:54Z stassats: if you count plugging the holes as sorting out
2018-01-10T00:09:18Z stassats: aeth: the structure slots have to be specialized as well
2018-01-10T00:09:46Z aeth: I should probably say "typed structure slots", I guess
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2018-01-10T00:13:49Z stassats: i wonder what i could do to accelerate things a bit? getting a faster build machine?
2018-01-10T00:14:00Z stassats: yet sometimes writing tests and commit messages takes up more time
2018-01-10T00:16:51Z nyef``: Sometimes simply understanding the problem takes the most time.
2018-01-10T00:17:36Z stassats: 10-20 minutes of overhead doesn't help anyway
2018-01-10T00:18:44Z stassats: i wonder if the time spent on a time-travelling IR visualizer will be worth it
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2018-01-10T00:19:26Z stassats: there is no doubt it'll be helpful, but how much to invest
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2018-01-10T00:22:20Z stassats: sometimes a bigger screen is helpful
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2018-01-10T00:57:44Z karlosz: i think i have a handle on how to incrementally step through ir1 optimizations in a visualizer
2018-01-10T00:58:32Z karlosz: the user interacts with the main gui thread and clicks a button to optimize the said component
2018-01-10T00:59:02Z karlosz: the second thread which is in ir1-optimize waits for such an event, and then continues
2018-01-10T00:59:13Z karlosz: the threads communicate in lock step
2018-01-10T00:59:45Z stassats: ir1-optimize is too coarse grained
2018-01-10T00:59:58Z stassats: i was planing on instrumenting every function in SB-C
2018-01-10T01:00:07Z karlosz: wow
2018-01-10T01:00:14Z stassats: and tracking the changes to the IR
2018-01-10T01:00:18Z karlosz: wouldnt that be the opposite of too coarse grained
2018-01-10T01:00:43Z stassats: saving each step on disk along
2018-01-10T01:00:52Z stassats: then visualising that
2018-01-10T01:01:22Z stassats: that would be fine grained, which is the point
2018-01-10T01:02:03Z karlosz: i meant that if there are many many reoptimizations
2018-01-10T01:02:29Z karlosz: it would take a while to find when the ir1 badness of interest happens
2018-01-10T01:02:35Z stassats: the more reason to visualize them
2018-01-10T01:03:11Z karlosz: ill see if i can get a first approximation with ir1-optimize stepping working with lichtblaus thing for now
2018-01-10T01:04:12Z stassats: well, i wouldn't use mcclim anyway, unless you'll make it really good
2018-01-10T01:05:34Z karlosz: meh, its not ideal, but i dont see any other gui that can interact with lisp objects as well as mcclim does
2018-01-10T01:05:45Z karlosz: which is not saying much but
2018-01-10T01:05:51Z karlosz: its something
2018-01-10T01:06:10Z stassats: any gui? not sure why it has to interact with the objects
2018-01-10T01:06:53Z karlosz: well, right now you can get a general structure of the flow graph, but then you can click on specific nodes you want to inspect
2018-01-10T01:07:05Z karlosz: which print out slots and such that are all linked together
2018-01-10T01:07:25Z karlosz: maybe that isnt helpful for an experienced ir1 hacker
2018-01-10T01:07:37Z stassats: well, any gui can do that
2018-01-10T01:08:08Z stassats: but mcclim a) doesn't work on a mac (no, i don't want an x server, thanks) b) too slow
2018-01-10T01:09:10Z karlosz: very true. that pretty much leaves only qt if cross platform is an issue
2018-01-10T01:09:32Z pfdietz: How many of the malformed code tests I send you illustrate more general bugs that could occur in valid code?
2018-01-10T01:09:57Z nyef``: How much of McCLIM being slow is because SBCL's PCL is dreadful?
2018-01-10T01:10:50Z karlosz: nyef``: as much as pcl is bad, i think sbcl still works way faster than any other implementation
2018-01-10T01:11:09Z stassats: karlosz: when (if) i finally take up on my idea, i'm going to use some web interface
2018-01-10T01:11:10Z karlosz: so assuming other implemntations clos's are better, than it must not be clos thats the bottleneck
2018-01-10T01:11:23Z stassats: i don't like web interfaces, but seems to be well suited for graph visualization
2018-01-10T01:11:37Z stassats: pfdietz: some do
2018-01-10T01:11:45Z stassats: mostly by being "this thing does not return"
2018-01-10T01:12:19Z pfdietz: I didn't expect that, although I should have.
2018-01-10T01:12:37Z pfdietz: Anyway, I'm sure this flood of recent bugs will subside soon.
2018-01-10T01:13:12Z karlosz: stassats: web interface is not a bad idea, but i was thinking in a live environment you could hack up the ir manually, like change a reoptimize flag or something and continue stepping to see if the problem is still there
2018-01-10T01:14:12Z stassats: all can be done too
2018-01-10T01:14:27Z stassats: but i don't need to visualize static IR, i can see it in my sleep
2018-01-10T01:14:45Z karlosz: right, i figured
2018-01-10T01:14:52Z stassats: (not a good thing)
2018-01-10T01:14:57Z stassats: to dream about
2018-01-10T01:15:48Z karlosz: ha, it can be good if your dream shows you the solution
2018-01-10T01:16:56Z stassats: a better static visualizer could cut down on noise and show more info, but it's not exactly worth the investment
2018-01-10T01:17:14Z stassats: sbcl is a tool, i'm working on a tool, so a visualizer would be a tool for a tool
2018-01-10T01:18:29Z nyef``: A meta-tool?
2018-01-10T01:18:40Z stassats: a tooool
2018-01-10T01:18:56Z nyef``: "Tool and die"?
2018-01-10T01:19:08Z stassats: you say computer is a tool too
2018-01-10T01:19:33Z stassats: so, three star yak shaving
2018-01-10T01:19:38Z nyef``: "The Computer is your friend." "Trust the Computer." "Happiness is Mandatory, Citizen!"
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2018-01-10T02:39:21Z karlosz: seems like *world-lock* is stopping me from putting ir1-optimize to sleep
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2018-01-10T03:22:35Z karlosz: some kind of race condition
2018-01-10T03:22:51Z karlosz: the system keeps trying to compile layout-of
2018-01-10T03:22:56Z karlosz: by itself
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2018-01-10T03:50:33Z nyef``: Hrm. All FRAMEs are COMPILED-FRAMEs?
2018-01-10T03:50:48Z nyef``: That's already sketchy.
2018-01-10T03:58:39Z nyef``: ... And we have two separate concepts of DEBUG-FUN.
2018-01-10T03:59:32Z nyef``: And all of the polymorphism is done via ETYPECASE. I miss CLOS. /-:
2018-01-10T04:07:22Z nyef``: Urgh. Of *course* the case I'm worried about can't happen on fp-and-pc-standard-save.
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2018-01-10T04:34:25Z karlosz: i use a child thread to spawn a compile-file with wrapped ir1-optimize, and it blocks the parent gui thread??
2018-01-10T04:35:13Z karlosz: does something in the gui really need to compile
2018-01-10T04:35:21Z karlosz: maybe its that world lock stuff
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2018-01-10T04:36:05Z nyef``: karlosz: PCL building new effective-method-functions, maybe?
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2018-01-10T11:41:41Z stassats: there should be no #+win32 in the run-program docstring
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2018-01-10T11:58:34Z scymtym: stassats: isn't the #.(concatenate …) superfluous now?
2018-01-10T11:58:48Z stassats: now, yes
2018-01-10T11:58:59Z stassats: is ;; The Texinfoizer is sensitive to whitespace?
2018-01-10T11:59:32Z stassats: it was about #+win32
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2018-01-10T12:18:11Z stassats: can we have :may-fail-on :ci
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2018-01-10T13:02:06Z stassats: my patience with the run-program thing is running thin, not only is the documentation spelling things out (except for the default :output thing), but i'm also having to repeat myself
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2018-01-10T13:09:28Z stassats: For no arguments, use NIL (which means that just the name of the program is passed as arg 0).
2018-01-10T13:09:31Z stassats: what
2018-01-10T13:09:39Z stassats: now, that's not helpful
2018-01-10T13:12:55Z stassats: i think the whole sentence can go, what else can be passed for no arguments if not NIL? the zeroth arg is an implementtion detail of execve
2018-01-10T13:13:59Z stassats: why is external-format not used to encode the arguments?
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2018-01-10T14:09:29Z nyef``: Whee... using SB!C:MAKE-SC-OFFSET in debug-int.lisp.
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2018-01-10T14:19:57Z karlosz: maybe if i launch the inspector in the interpreter, it wouldnt be compiling all the time
2018-01-10T14:20:59Z nyef``: Or warm up your PCL caches?
2018-01-10T14:21:16Z karlosz: yeah,, what i did was (trace ir1-optimize)
2018-01-10T14:21:25Z karlosz: and i can actually see the cache being warmed up
2018-01-10T14:21:30Z karlosz: as i moved stuff around
2018-01-10T14:22:02Z karlosz: when the cache looks done it acutally gets a bit farther but then when i hit compile it must have to compile something new
2018-01-10T14:22:11Z karlosz: on the gui side
2018-01-10T14:22:30Z karlosz: and interpreting doesnt affect pcl
2018-01-10T14:22:33Z karlosz: so
2018-01-10T14:22:49Z karlosz: i might have to ditch the dynamic approach and just dump the state of the ir1 and reload it
2018-01-10T14:23:06Z karlosz: luckily  the functionality is already there
2018-01-10T14:23:17Z karlosz: but first i need to compile with +sb-heapdump
2018-01-10T14:23:25Z karlosz: who knows if that still works
2018-01-10T14:25:32Z karlosz: its not like i can have thread local fdefinitions, can i?
2018-01-10T14:27:05Z Shinmera: Something something first class global environments.
2018-01-10T14:27:16Z karlosz: wait, that might actually work
2018-01-10T14:27:28Z karlosz: im rewriting ir1-optimize with a closure
2018-01-10T14:27:31Z karlosz: and sleeping
2018-01-10T14:27:42Z karlosz: but i only want the sleeping to happen if i launch it from a very speicifc thread
2018-01-10T14:27:52Z karlosz: so if i just bind a closure to a thread local special variable
2018-01-10T14:28:06Z karlosz: and call the closure within the new ir1-optimize closure
2018-01-10T14:28:22Z karlosz: i can give that closure a different value in my compile-file thread
2018-01-10T14:28:49Z karlosz: but when other threads call ir1-optimize they proceed normally
2018-01-10T14:28:58Z karlosz: just another level of indirection
2018-01-10T14:29:11Z karlosz: 3 star programming here
2018-01-10T14:30:39Z nyef``: In C, I've been up to four or five stars.
2018-01-10T14:32:28Z karlosz: interesting, for what?
2018-01-10T14:32:41Z karlosz: recently i wrote a scheme compiler for an fpga that had a split between rom and ram
2018-01-10T14:32:41Z stassats: karlosz: i wasn't going to work on the live compiler, but on the cross compiler
2018-01-10T14:32:52Z karlosz: just having global variables required 3 stars
2018-01-10T14:33:22Z karlosz: stassats: that's... actually probably the right approach
2018-01-10T14:33:31Z karlosz: is there a script to easily set up the cross compiler?
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2018-01-10T14:33:44Z stassats: yes, somewhere in /
2018-01-10T14:33:56Z karlosz: stassats: thank you, this is probably what i need
2018-01-10T14:34:33Z karlosz: so then sb-xc:compile-file is what i would use
2018-01-10T14:35:00Z karlosz: and then i can freely wrap sb-xc:ir1-optimize or whatever
2018-01-10T14:35:06Z karlosz: great
2018-01-10T14:36:04Z stassats: sb!c
2018-01-10T14:37:37Z karlosz: right, of course
2018-01-10T14:39:17Z karlosz: is it supposed to be just (load "load-xc.lisp")? i got sb-xc does not designate a package when i ran it the first time
2018-01-10T14:40:45Z stassats: it was supposed
2018-01-10T14:42:00Z karlosz: why is there sb-xc and sb!xc anyways
2018-01-10T14:42:16Z stassats: but 5a3e8299f3bca5fdc3946a874ad855d05309f224
2018-01-10T14:42:50Z karlosz: aha, okay
2018-01-10T14:43:01Z karlosz: then i just need to change xc-compile-file to use sb!xc
2018-01-10T14:43:08Z karlosz: and get rid of the rename-package line
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2018-01-10T14:44:05Z stassats: or you could do git pull
2018-01-10T14:46:01Z karlosz: but now that i did both, i have to rollback my local change :p
2018-01-10T14:49:45Z karlosz: now i have to change every sb-c to sb!c...
2018-01-10T14:50:25Z karlosz: this is trying to move pcl to xc all over again ;(
2018-01-10T14:57:13Z stassats: could just use-package
2018-01-10T14:57:34Z stassats: or rather, in-package
2018-01-10T14:57:40Z stassats: not a lot is exported
2018-01-10T14:59:38Z karlosz: okay, i got it working
2018-01-10T15:00:06Z karlosz: so now i can inspect the ir before ay ir1-optimize passes
2018-01-10T15:00:19Z karlosz: and then once i hit step-ir1-optimize
2018-01-10T15:00:25Z karlosz: itll update all the components
2018-01-10T15:00:48Z stassats: can you go back?
2018-01-10T15:01:14Z karlosz: not right now, but i think clim has a facility for output recording
2018-01-10T15:01:19Z karlosz: but the objects themselves are mutated
2018-01-10T15:01:37Z karlosz: so unless there is a way to copy ir1-objects
2018-01-10T15:01:44Z stassats: my plan was to serialize the whole IR state
2018-01-10T15:02:01Z karlosz: right, thats the advantage of just dumping everything
2018-01-10T15:02:33Z karlosz: do you happen to know if sb-heapdump is still working?
2018-01-10T15:02:43Z karlosz: i could do that as well in this thing
2018-01-10T15:02:49Z karlosz: and then i could probably go back
2018-01-10T15:02:50Z stassats: never used it
2018-01-10T15:03:07Z karlosz: okay, how would you serialize the objects?
2018-01-10T15:03:17Z stassats: doesn't sound like a good approach anyway
2018-01-10T15:03:20Z stassats: by hand
2018-01-10T15:03:37Z karlosz: and dumping out all the slots?
2018-01-10T15:04:00Z stassats: well, that's what serializing means
2018-01-10T15:04:58Z karlosz: arent there already methods in xc to do that?
2018-01-10T15:05:10Z stassats: i don't think so
2018-01-10T15:05:40Z karlosz: so the load-form-methods are different
2018-01-10T15:05:51Z karlosz: im not really sure what set-load-form-method actually does in xc
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2018-01-10T15:53:26Z nyef``: ... a way to copy ir1-objects? Where have I heard that before? (-:
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2018-01-10T18:19:14Z nyef``: ... Something doesn't look right with the (FIXNUMP LRA) case in non-x86oid COMPUTE-CALLING-FRAME.
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2018-01-10T18:20:05Z nyef``: And I'm now getting a bit suspicious of the GC semantics for callbacks.
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2018-01-10T18:46:55Z karlosz: nyef``: have you heard it before? it might be helpful
2018-01-10T18:47:38Z nyef``: karlosz: It was proposed as a solution to the "inlining local functions" problem. Possibly "inlining problems generally".
2018-01-10T18:48:14Z karlosz: nyef``: right, that does sound like the right solution for inling
2018-01-10T18:48:31Z karlosz: why can't we inline at source level?
2018-01-10T18:48:40Z karlosz: pre ir1 conversion?
2018-01-10T18:48:50Z karlosz: like source transform machinery
2018-01-10T18:48:57Z nyef``: Because the decision to inline or not is made post-IR1-conversion.
2018-01-10T18:49:18Z nyef``: ... isn't it?
2018-01-10T18:49:20Z karlosz: okay, so this is not for explicitly declared locals
2018-01-10T18:49:21Z nyef``: I have no idea.
2018-01-10T18:50:14Z karlosz: well, copying ir1 objects is essentially going to be the same as serializing them to disk
2018-01-10T18:50:25Z karlosz: with some make load form magic
2018-01-10T18:51:29Z karlosz: its quite satisfying to see ir1-optimize optimize the block structure of a component visually in steps
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2018-01-10T18:53:44Z nyef``: Heh! Just spotted: The difference between the COMPILED-DEBUG-FUN and BOGUS-DEBUG-FUN cases for non-x86oids is that the latter checks CONTROL-STACK-POINTER-VALID-P on the frame pointer before calling COMPUTE-CALLING-FRAME. But *both* versions of COMPUTE-CALLING-FRAME *start* with a check of CONTROL-STACK-POINTER-VALID-P!
2018-01-10T18:53:59Z nyef``: clhs etypecase
2018-01-10T18:53:59Z specbot: http://www.lispworks.com/reference/HyperSpec/Body/m_tpcase.htm
2018-01-10T19:01:44Z nyef``: Hrm. Can I replace #-sb-xc-host with #!+(and whatever (not (host-feature sb-xc-host))) ?
2018-01-10T19:16:14Z karlosz: anyone know how to get unwind-protect honored when i close a gui thread?
2018-01-10T19:16:34Z karlosz: seems like sbcl just kills the thread without cleaning up?
2018-01-10T19:17:01Z nyef``: How do you mean "close" a GUI thread?
2018-01-10T19:17:10Z karlosz: i saw an old mailing list post saying to install a sigterm handler
2018-01-10T19:17:15Z karlosz: like closing the window
2018-01-10T19:17:19Z karlosz: which causes the gui thread to die
2018-01-10T19:17:37Z nyef``: What on earth windowing system are you using?
2018-01-10T19:17:38Z karlosz: but if the gui thread spawned child threads
2018-01-10T19:17:42Z karlosz: mcclim
2018-01-10T19:17:51Z karlosz: okay not die
2018-01-10T19:17:55Z karlosz: to terminate
2018-01-10T19:18:06Z karlosz: but the child threads dont clean up
2018-01-10T19:18:27Z karlosz: for example if the child threads of the gui thread havent finished executing
2018-01-10T19:18:35Z karlosz: and the gui thread terminates
2018-01-10T19:18:51Z nyef``: So... X11?
2018-01-10T19:19:12Z karlosz: yes
2018-01-10T19:20:05Z karlosz: when i close irspect i want to make sure the old definition of ir1-optimize is restored
2018-01-10T19:20:31Z karlosz: its wrapped in unwind protect but doesnt seem to execute after closing the window
2018-01-10T19:20:56Z karlosz: the child thread is still waiting for the user to step more
2018-01-10T19:26:43Z nyef``: Shouldn't be any problem with unwind-protect and cleanups not running there...
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2018-01-10T19:41:04Z karlosz: https://ibin.co/3nkWMqKutPJT.png
2018-01-10T19:41:11Z karlosz: stepping through a simple ir
2018-01-10T19:42:57Z nyef``: I'd suggest forcing the tail block to be at the bottom, if you can.
2018-01-10T19:43:28Z karlosz: yeah, i should probably do some sort of topological sort
2018-01-10T19:43:42Z karlosz: i havent actually changed any of the graph printing from the original
2018-01-10T19:43:47Z karlosz: i just addded the stepping machinery
2018-01-10T19:44:08Z nyef``: And what's going on with the cblock 2 -> tail 1 arrow, and later the cblock 0 -> cblock 1 arrow?
2018-01-10T19:44:31Z karlosz: i think the numbers arent object identity
2018-01-10T19:44:36Z karlosz: the numbers are part of the graph
2018-01-10T19:44:43Z karlosz: but the presentations keep object identity
2018-01-10T19:44:57Z nyef``: I'm more asking about the visual presentation of the arrows.
2018-01-10T19:45:08Z nyef``: I know that the numbers are reassigned each time DFO gets run.
2018-01-10T19:45:36Z karlosz: whats wrong with the arrows?
2018-01-10T19:45:41Z karlosz: that they overlap?
2018-01-10T19:45:47Z karlosz: or that the orientation is strange?
2018-01-10T19:45:55Z nyef``: Some of them come from the top of the block, some lead to the bottome of the block.
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2018-01-10T21:18:12Z karlosz: yeah the drawing algorithm doesnt look optimal
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2018-01-10T22:31:45Z stassats: i would have just laid out the blocks in the DFO order and then added arrows and stuff
2018-01-10T22:31:55Z stassats: and zooming in/out of blocks to reveal the nodes
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2018-01-10T22:36:46Z karlosz: not just clicking on the blocks?
2018-01-10T22:37:00Z karlosz: not sure what the best way to present ir1 is still
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2018-01-10T22:40:24Z karlosz: https://ibin.co/3nlOXNAM6Oi1.png
2018-01-10T22:40:32Z karlosz: what clicking on a block to reveal the nodes look like
2018-01-10T22:40:36Z karlosz: this looks much uglier
2018-01-10T22:40:46Z karlosz: i hope to improve the presentation a bit
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2018-01-10T22:45:22Z nyef``: Hrm. "SIGNAL-CONTEXT-FRAME doesn't seem to work at all on non-x86"? Where did *that* come from?
2018-01-10T22:46:56Z stassats: karlosz: that is... confusing
2018-01-10T22:46:58Z nyef``: Ah. jsnell, late 2006.
2018-01-10T22:47:11Z stassats: the nodes within a block are linear
2018-01-10T22:47:27Z stassats: so all these arrows, what are they doing?
2018-01-10T22:48:04Z nyef``: Original comment said "SIGNAL-CONTEXT-FRAME doesn't seem to work very well currently".
2018-01-10T22:48:32Z nyef``: Mmm. The point of a block is that it's a largely-linear chunk of control-flow.
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2018-01-10T22:49:47Z karlosz: yeah, it took me a while to understand too
2018-01-10T22:50:02Z karlosz: its a more ctran-centric way of viewing the graph
2018-01-10T22:50:09Z stassats: maybe it's trying to use the horizontal screen space
2018-01-10T22:50:10Z corci: Yippee, build fixed!
2018-01-10T22:50:11Z corci: Project sbcl-master » fancy,ubuntu_trusty_32bit build #2846: FIXED in 50 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_32bit/2846/
2018-01-10T22:50:28Z karlosz: i have no clue why its like that
2018-01-10T22:50:32Z karlosz: all the lvars
2018-01-10T22:51:16Z karlosz: the other ir1 viewer i worked on before was better in that respect
2018-01-10T22:51:39Z karlosz: although in certain instances it shows the possibly many predecessor blocks leading in
2018-01-10T22:51:42Z karlosz: but it is a bit ridiculous
2018-01-10T22:53:43Z stassats: basically, i like how print-all-blocks lays out the blocks, but with more arrows, more jumping, more collapsing / revealing
2018-01-10T22:53:48Z karlosz: figures. its using the default graph formatter fom mcclim :/
2018-01-10T22:54:04Z stassats: more colors
2018-01-10T22:54:07Z stassats: minion: chant
2018-01-10T22:54:07Z minion: MORE COLORS
2018-01-10T22:54:14Z karlosz: ha
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2018-01-10T22:57:07Z karlosz: stassats: comments on this style of graph? https://ibin.co/3nlTTyFWtwYs.png
2018-01-10T22:57:11Z nyef``: Hrm. SIGNAL-CONTEXT-FRAME was introduced (for breakpoint hooks, for TRACE :ENCAPSULATE NIL, for Solaris/x86) in 0.9.11.19 (April 2006).  There was a single-stepper rewrite in 0.9.16.38 (September 2006), which added the comment "SIGNAL-CONTEXT-FRAME doesn't seem seem [sic] to work very well currently".
2018-01-10T22:57:36Z corci: Project sbcl-master-windows » Windows_7_32bit build #1744: FAILURE in 28 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1744/
2018-01-10T22:57:51Z stassats: karlosz: that's more like, the layout
2018-01-10T22:58:15Z corci: Project sbcl-master-windows » Windows_7_64bit build #1744: FAILURE in 29 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_64bit/1744/
2018-01-10T22:58:30Z nyef``: In 0.9.16.43 (September 2006), it is claimed that SIGNAL-CONTEXT-FRAME works on x86/x86-64.
2018-01-10T22:59:08Z karlosz: right, you would click on the nodes to have information
2018-01-10T22:59:29Z stassats: mean to say "that's more like it"
2018-01-10T22:59:51Z karlosz: yeah
2018-01-10T22:59:53Z nyef``: In 0.9.17.7 (October 2006), we get the "STEP-OUT is completely bogus, only let it happen under certain circumstances" thing.
2018-01-10T22:59:55Z karlosz: colorful
2018-01-10T23:00:18Z stassats: overlapping green arrows are not clear, though
2018-01-10T23:00:42Z karlosz: yeah, supposed to be lvars
2018-01-10T23:00:45Z karlosz: hard to click on too
2018-01-10T23:01:10Z corci: Yippee, build fixed!
2018-01-10T23:01:10Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2846: FIXED in 1 hr 1 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2846/
2018-01-10T23:03:03Z stassats: safepoints, oh safepoints, so stable
2018-01-10T23:04:41Z nyef``: Were they stable a couple of weeks ago, or did we just not know how to provoke a failure?
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2018-01-10T23:08:46Z stassats: no idea
2018-01-10T23:08:56Z stassats: not bothering with safepoints
2018-01-10T23:10:51Z nyef``: Aha. In 1.0.39.7 (June 2010), SIGNAL-CONTEXT-FRAME was made to work on non-x86oid platforms.
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2018-01-10T23:27:52Z corci: Yippee, build fixed!
2018-01-10T23:27:52Z corci: Project sbcl-master-windows » Windows_7_32bit build #1745: FIXED in 29 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1745/
2018-01-10T23:58:36Z nyef``: ... The debugger is broken on big-endian MIPS, isn't it?
2018-01-11T00:02:53Z stassats: i can't even build on be mipsbe
2018-01-11T00:03:06Z stassats: haven't tried for some time, though
2018-01-11T00:03:14Z stassats: (mipsel works)
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2018-01-11T00:21:50Z corci: Yippee, build fixed!
2018-01-11T00:21:51Z corci: Project sbcl-master » without-threads,MAC_OS_mavericks_64bit build #2847: FIXED in 24 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=MAC_OS_mavericks_64bit/2847/
2018-01-11T00:22:30Z nyef``: Wow. It's been a while since I powered up an SGI box.
2018-01-11T00:29:47Z nyef``: Test build running now.
2018-01-11T00:30:39Z nyef``: ... One of these days, I need to update this box to not have that kernel bug that causes the bindstack exhaustion test to fail.
2018-01-11T00:31:30Z nyef``: Hrm. And possibly to have an SMP-capable kernel, but that'll have to wait for quite a while, I think.
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2018-01-11T00:35:29Z nyef``: ... "doing signed word to integer coercion (cost 18), for: the first argument of FIXNUMP"? What?
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2018-01-11T01:05:23Z stassats: no vop
2018-01-11T01:15:15Z nyef``: Yeah, figured it'd be something like that.
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2018-01-11T01:30:30Z stassats: only x86s and arm64 have it
2018-01-11T01:32:05Z nyef``: I'm wondering if it might not make sense to go through and define test cases for every VOP that does something more optimally on any platform, so that we have some sort of easy measurement for what can be improved for the other platforms.
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2018-01-11T02:18:13Z nyef``: Hrm. Running the sb-md5 tests gets a "memory fault at 0x4". Fun.
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2018-01-11T02:19:06Z nyef``: Getting LOTS of "memory fault at 0x4" in the test suite.
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2018-01-11T02:24:44Z nyef``: Hunh. I wonder if all of these "memory fault at 0x4" is from pulling the CFP as a descriptor-sap and then reading out the first stack slot (the LRA)?
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2018-01-11T02:29:05Z nyef``: Looks like MIPS was broken eleven months and two days ago.
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2018-01-11T03:30:50Z corci: Yippee, build fixed!
2018-01-11T03:30:50Z corci: Project sbcl-master-windows » Windows_7_64bit build #1746: FIXED in 30 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_64bit/1746/
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2018-01-17T21:27:15Z 
2018-01-17T21:27:15Z names: ccl-logbot oleo scymtym milanj Jesin sjl Bike rumbler31 |3b| stassats shka MetaYan Lord_Nightmare DeadTrickster eschatologist mood fortitude whoman jibanes brucem lonjil rgrau Kevslinger tonton bkst attila_lendvai corci Xof greaser|q pfdietz DGASAU jasom Colleen jack_rabbit joshe foom2 angular_mike mjl jyc fe[nl]ix dim stylewarning jdz Intensity cromachina leah2 cryptomarauder libreman ave1 p_l Blkt easye pchrist les fiddlerwoaroof_ salva abbe carvite
2018-01-17T21:27:15Z names: nimiux nicdev aeth ym pkhuong Posterdati leo_song malm sigjuice dustinm` alandipert adlai phoe nyef`` flip214 irsol White_Flame Greasy-Gappers luis drmeister gendl christoph_debian copec galdor jsnell kini specbot xristos _death Shinmera jackdaniel gingerale gko minion swflint Aaryn
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2018-01-17T21:38:43Z stassats: yes, sent it to Douglas
2018-01-17T21:39:16Z stylewarning: |3b| my reading of the standard is that it is undefined up to which value is selected from the set of Booleans.
2018-01-17T21:42:32Z |3b|: stylewarning: but only for number/character values for which EQL would return true... no false positives, only false negatives (at least by the definition used by EQL)
2018-01-17T21:43:09Z |3b|: so (eq 5 x) will never return true for anything aside from X=5, and maybe not even then
2018-01-17T21:45:35Z stassats: "not even then" is not relevant, this is sbcl we're talking about
2018-01-17T21:52:35Z scymtym: stassats: should i suspend CI until he pushes a fix?
2018-01-17T21:53:04Z stassats: probably
2018-01-17T21:54:00Z corci: Yippee, build fixed!
2018-01-17T21:54:01Z corci: Project sbcl-master-windows » Windows_7_32bit build #1796: FIXED in 28 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1796/
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2018-01-18T01:07:59Z stassats: i think i know how to highlight A in (lambda () A), but not sure how to reconcile it with slime
2018-01-18T01:08:35Z stassats: i can push a slime release supporting it before putting it into sbcl
2018-01-18T01:19:29Z pfdietz: The issue with my quicklisp was I didn't do (ql:update-dist "quicklisp").  In my defense, it didn't say I had to do that after installing.
2018-01-18T01:19:47Z stassats: you don't?
2018-01-18T01:20:00Z pfdietz: I did that and it updated a pile of things.
2018-01-18T01:20:12Z stassats: so, it wasn't a clean install
2018-01-18T01:20:15Z pfdietz: I guess!
2018-01-18T01:20:39Z stassats: oh no, now you'll have more forms to break sbcl
2018-01-18T01:20:43Z pfdietz: I'll go back and do a clean install to see what happens.   There may have been something there from before.
2018-01-18T01:21:26Z pfdietz: Yes, 143K forms (read without loading the packages; should get even more when I load them first so the reader doesn't fail as much and macros are defined.)
2018-01-18T01:21:28Z stassats: have you tried using sbcl sources form forms? or sbcl tests?
2018-01-18T01:21:39Z pfdietz: SBCL sources?  No.
2018-01-18T01:22:04Z stassats: tests already contain previously bad forms
2018-01-18T01:22:40Z pfdietz: I think I may extend the testing to splice subterms from different forms into other forms, rather than just into themselves.
2018-01-18T01:22:56Z pfdietz: And then back to generative testing.
2018-01-18T01:23:09Z stassats: can you generate a working compiler?
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2018-01-18T01:24:10Z pfdietz: Heh.  I'd like coverage feedback on the sbcl compiler.  Is there a way I can load than in separately, just to run tests through it, without clobbering the existing compiler?
2018-01-18T01:24:15Z dougk: I think i know what causes the gc invariant loss that i introduced. having a heck of a time creating that situation through Lisp code
2018-01-18T01:24:49Z stassats: pfdietz: you can load the cross compiler
2018-01-18T01:24:58Z stassats: see ~/load-xc.lisp
2018-01-18T01:25:02Z pfdietz: Ok.
2018-01-18T01:25:59Z stassats: but it's not the real mccoy, so it may have its own bugs or not have the eventual compiler bugs
2018-01-18T01:26:38Z stassats: dougk: somehow the CI lost no time in stumbling on it multiple times
2018-01-18T01:27:34Z nyef``: Can you "just" hack the default XC policy to include instrumentation for code coverage, or would that break horribly?
2018-01-18T01:27:55Z dougk: yup.  pretty sure the issue is that the allocator allows picking up the tail of a region that was closed and whose last page was 100% full. it considers that the region start. But page_address(start_page)+page_bytes_used(start_page) is actually on the next page
2018-01-18T01:27:57Z stassats: i have no idea how our code coverage is done
2018-01-18T01:28:08Z pfdietz: I was thinking of using COVER, not SB-COVER.
2018-01-18T01:28:22Z stassats: or any code coverage
2018-01-18T01:31:38Z pfdietz: COVER, a package written by Waters, does some clever macrology and symbol shadowing.  It's portable.
2018-01-18T01:31:41Z pfdietz: http://www.merl.com/publications/docs/TR91-04.pdf
2018-01-18T01:34:36Z pfdietz: I've used that to automatically generate covering test cases for small libraries.  Generate test inputs and remember them when they increase coverage.
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2018-01-18T02:34:32Z corci: Project sbcl-master » default,ubuntu_trusty_64bit build #2881: FAILURE in 6 hr 42 min: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=ubuntu_trusty_64bit/2881/
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2018-01-18T03:07:46Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2881: FAILURE in 7 hr 15 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2881/
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2018-01-18T09:34:50Z corci: Yippee, build fixed!
2018-01-18T09:34:51Z corci: Project sbcl-master-windows » Windows_7_64bit build #1797: FIXED in 29 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_64bit/1797/
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2018-01-18T11:12:09Z corci: Yippee, build fixed!
2018-01-18T11:12:10Z corci: Project sbcl-master » without-threads,ubuntu_trusty_32bit build #2884: FIXED in 16 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=ubuntu_trusty_32bit/2884/
2018-01-18T11:19:01Z corci: Yippee, build fixed!
2018-01-18T11:19:02Z corci: Project sbcl-master » default,ubuntu_trusty_32bit build #2884: FIXED in 23 min: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=ubuntu_trusty_32bit/2884/
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2018-01-18T11:30:01Z corci: Yippee, build fixed!
2018-01-18T11:30:02Z corci: Project sbcl-master » fasteval,ubuntu_trusty_32bit build #2884: FIXED in 34 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=ubuntu_trusty_32bit/2884/
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2018-01-18T11:34:24Z corci: Yippee, build fixed!
2018-01-18T11:34:24Z corci: Project sbcl-master » fancy,ubuntu_trusty_32bit build #2884: FIXED in 38 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_32bit/2884/
2018-01-18T11:40:43Z corci: Yippee, build fixed!
2018-01-18T11:40:44Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_32bit build #2884: FIXED in 45 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_32bit/2884/
2018-01-18T11:51:49Z corci: Yippee, build fixed!
2018-01-18T11:51:49Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2884: FIXED in 56 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2884/
2018-01-18T11:59:43Z corci: Yippee, build fixed!
2018-01-18T11:59:44Z corci: Project sbcl-master » ccl,ubuntu_trusty_32bit build #2884: FIXED in 1 hr 4 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_32bit/2884/
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2018-01-18T12:12:25Z scymtym: gc.impure-cload gc-region-pickup seems to fail for all configurations on both x86_64 slaves
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2018-01-18T16:16:20Z nyef``: ... I'm about ready to give up on this PPC COPY-MORE-ARG thing. /-:
2018-01-18T16:17:38Z nyef``: (By which I mean "stick a FIXME comment in the VOP to the effect that there's still an interrupt-safety hole, and that it might be copying more than it strictly needs to, and call it good enough".)
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2018-01-18T16:30:25Z corci: Project sbcl-master » without-threads,ubuntu_trusty_32bit build #2885: FAILURE in 1 min 15 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=ubuntu_trusty_32bit/2885/
2018-01-18T16:30:26Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_64bit build #2885: FAILURE in 1 min 15 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_64bit/2885/
2018-01-18T16:31:25Z corci: Project sbcl-master » fancy,ubuntu_trusty_32bit build #2885: FAILURE in 2 min 14 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_32bit/2885/
2018-01-18T16:31:37Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_32bit build #2885: FAILURE in 2 min 26 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_32bit/2885/
2018-01-18T16:53:36Z corci: Project sbcl-master » fancy,ubuntu_trusty_64bit build #2885: FAILURE in 24 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_64bit/2885/
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2018-01-18T16:59:56Z corci: Project sbcl-master-windows » Windows_7_32bit build #1801: FAILURE in 29 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1801/
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2018-01-18T18:00:08Z corci: Project sbcl-master » fasteval,ubuntu_trusty_64bit build #2888: FAILURE in 1 min 1 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=ubuntu_trusty_64bit/2888/
2018-01-18T18:00:21Z corci: Project sbcl-master » without-threads,ubuntu_trusty_64bit build #2888: FAILURE in 1 min 13 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=ubuntu_trusty_64bit/2888/
2018-01-18T18:01:33Z corci: Project sbcl-master » without-threads,MAC_OS_mavericks_64bit build #2888: FAILURE in 2 min 25 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=MAC_OS_mavericks_64bit/2888/
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2018-01-18T18:22:22Z corci: Yippee, build fixed!
2018-01-18T18:22:23Z corci: Project sbcl-master » fancy,ubuntu_trusty_32bit build #2888: FIXED in 23 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_32bit/2888/
2018-01-18T18:26:17Z corci: Yippee, build fixed!
2018-01-18T18:26:18Z corci: Project sbcl-master » without-unicode,MAC_OS_mavericks_64bit build #2888: FIXED in 27 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=MAC_OS_mavericks_64bit/2888/
2018-01-18T18:27:10Z corci: Yippee, build fixed!
2018-01-18T18:27:10Z corci: Project sbcl-master » default,MAC_OS_mavericks_64bit build #2888: FIXED in 28 min: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=MAC_OS_mavericks_64bit/2888/
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2018-01-18T18:27:50Z corci: Yippee, build fixed!
2018-01-18T18:27:50Z corci: Project sbcl-master » fancy,MAC_OS_mavericks_64bit build #2888: FIXED in 28 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=MAC_OS_mavericks_64bit/2888/
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2018-01-18T18:30:19Z corci: Yippee, build fixed!
2018-01-18T18:30:19Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_64bit build #2888: FIXED in 31 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_64bit/2888/
2018-01-18T18:30:32Z corci: Project sbcl-master » ccl,ubuntu_trusty_64bit build #2888: FAILURE in 31 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_64bit/2888/
2018-01-18T18:30:53Z corci: Yippee, build fixed!
2018-01-18T18:30:53Z corci: Project sbcl-master » default,ubuntu_trusty_64bit build #2888: FIXED in 31 min: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=ubuntu_trusty_64bit/2888/
2018-01-18T18:31:15Z corci: Yippee, build fixed!
2018-01-18T18:31:16Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2888: FIXED in 32 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2888/
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2018-01-18T18:38:32Z corci: Yippee, build fixed!
2018-01-18T18:38:32Z corci: Project sbcl-master » fasteval,MAC_OS_mavericks_64bit build #2888: FIXED in 39 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=MAC_OS_mavericks_64bit/2888/
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2018-01-18T18:43:32Z corci: Yippee, build fixed!
2018-01-18T18:43:33Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_32bit build #2888: FIXED in 44 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_32bit/2888/
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2018-01-18T19:45:51Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_64bit build #2889: FAILURE in 1 min 18 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_64bit/2889/
2018-01-18T19:45:52Z corci: Project sbcl-master » default,ubuntu_trusty_64bit build #2889: FAILURE in 1 min 18 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=ubuntu_trusty_64bit/2889/
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2018-01-18T20:00:15Z corci: Project sbcl-master » default,ubuntu_trusty_32bit build #2890: FAILURE in 56 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=ubuntu_trusty_32bit/2890/
2018-01-18T20:00:36Z corci: Project sbcl-master » fasteval,MAC_OS_mavericks_64bit build #2890: FAILURE in 1 min 16 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=MAC_OS_mavericks_64bit/2890/
2018-01-18T20:01:46Z corci: Project sbcl-master-windows » Windows_7_64bit build #1803: FAILURE in 1 min 37 sec: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_64bit/1803/
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2018-01-18T20:05:41Z corci: Project sbcl-master » fasteval,ubuntu_trusty_32bit build #2890: FAILURE in 6 min 22 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=ubuntu_trusty_32bit/2890/
2018-01-18T20:05:53Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_32bit build #2890: FAILURE in 6 min 33 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_32bit/2890/
2018-01-18T20:06:05Z corci: Project sbcl-master » ccl,ubuntu_trusty_32bit build #2890: FAILURE in 6 min 45 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_32bit/2890/
2018-01-18T20:08:53Z corci: Project sbcl-master » default,MAC_OS_mavericks_64bit build #2890: FAILURE in 9 min 33 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=MAC_OS_mavericks_64bit/2890/
2018-01-18T20:09:28Z stassats:  Memory fault at 0x40 (pc=0x40, sp=0x4ff278)
2018-01-18T20:17:36Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2890: FAILURE in 18 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2890/
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2018-01-18T20:21:26Z corci: Yippee, build fixed!
2018-01-18T20:21:26Z corci: Project sbcl-master » without-threads,MAC_OS_mavericks_64bit build #2890: FIXED in 22 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=MAC_OS_mavericks_64bit/2890/
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2018-01-18T20:29:05Z dougk: stassats: seems to be from my change that removed has_pins. Trying to figure out why
2018-01-18T20:29:57Z stassats:  not necessarily, might be non deterministic
2018-01-18T20:30:00Z stassats: builds fine here
2018-01-18T20:31:21Z corci: Yippee, build fixed!
2018-01-18T20:31:21Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_64bit build #2890: FIXED in 32 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_64bit/2890/
2018-01-18T20:38:10Z corci: Yippee, build fixed!
2018-01-18T20:38:11Z corci: Project sbcl-master » fancy,ubuntu_trusty_64bit build #2890: FIXED in 38 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_64bit/2890/
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2018-01-18T20:46:53Z corci: Yippee, build fixed!
2018-01-18T20:46:54Z corci: Project sbcl-master » ccl,ubuntu_trusty_64bit build #2890: FIXED in 47 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_64bit/2890/
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2018-01-18T20:54:42Z corci: Yippee, build fixed!
2018-01-18T20:54:42Z corci: Project sbcl-master-windows » Windows_7_32bit build #1804: FIXED in 29 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1804/
2018-01-18T20:54:52Z corci: Yippee, build fixed!
2018-01-18T20:54:52Z corci: Project sbcl-master-windows » Windows_7_64bit build #1804: FIXED in 29 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_64bit/1804/
2018-01-18T21:03:18Z corci: Yippee, build fixed!
2018-01-18T21:03:18Z corci: Project sbcl-master » without-threads,ubuntu_trusty_32bit build #2891: FIXED in 16 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=ubuntu_trusty_32bit/2891/
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2018-01-18T21:10:11Z corci: Yippee, build fixed!
2018-01-18T21:10:12Z corci: Project sbcl-master » default,ubuntu_trusty_32bit build #2891: FIXED in 23 min: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=ubuntu_trusty_32bit/2891/
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2018-01-18T21:16:34Z corci: Yippee, build fixed!
2018-01-18T21:16:34Z corci: Project sbcl-master » default,MAC_OS_mavericks_64bit build #2891: FIXED in 29 min: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=MAC_OS_mavericks_64bit/2891/
2018-01-18T21:18:29Z corci: Yippee, build fixed!
2018-01-18T21:18:29Z corci: Project sbcl-master » default,ubuntu_trusty_64bit build #2891: FIXED in 31 min: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=ubuntu_trusty_64bit/2891/
2018-01-18T21:21:12Z corci: Yippee, build fixed!
2018-01-18T21:21:13Z corci: Project sbcl-master » fasteval,ubuntu_trusty_32bit build #2891: FIXED in 34 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=ubuntu_trusty_32bit/2891/
2018-01-18T21:27:28Z corci: Yippee, build fixed!
2018-01-18T21:27:28Z corci: Project sbcl-master » fasteval,MAC_OS_mavericks_64bit build #2891: FIXED in 40 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=MAC_OS_mavericks_64bit/2891/
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2018-01-18T21:31:46Z corci: Yippee, build fixed!
2018-01-18T21:31:47Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_32bit build #2891: FIXED in 44 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_32bit/2891/
2018-01-18T21:34:27Z corci: Yippee, build fixed!
2018-01-18T21:34:27Z corci: Project sbcl-master » fasteval,ubuntu_trusty_64bit build #2891: FIXED in 47 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=ubuntu_trusty_64bit/2891/
2018-01-18T21:35:37Z corci: Project sbcl-master » ccl,ubuntu_trusty_64bit build #2891: FAILURE in 48 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_64bit/2891/
2018-01-18T21:46:30Z corci: Yippee, build fixed!
2018-01-18T21:46:30Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2891: FIXED in 59 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2891/
2018-01-18T21:50:57Z corci: Yippee, build fixed!
2018-01-18T21:50:58Z corci: Project sbcl-master » ccl,ubuntu_trusty_32bit build #2891: FIXED in 1 hr 3 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_32bit/2891/
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2018-01-18T23:43:26Z stassats: i think i can extend source location to atom forms without breaking compatibility with older slime
2018-01-18T23:43:56Z stassats: just provide the offset into the final form as an additional slot in the structures that are queried by slime
2018-01-18T23:44:11Z stassats: ok, now to actually implement it
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2018-01-18T23:55:18Z corci: Project sbcl-master » fasteval,ubuntu_trusty_32bit build #2893: FAILURE in 1 min 7 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=ubuntu_trusty_32bit/2893/
2018-01-18T23:55:18Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_64bit build #2893: FAILURE in 1 min 7 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_64bit/2893/
2018-01-19T00:00:11Z corci: Project sbcl-master » default,ubuntu_trusty_64bit build #2893: FAILURE in 6 min 0 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=ubuntu_trusty_64bit/2893/
2018-01-19T00:00:23Z corci: Project sbcl-master » fancy,ubuntu_trusty_64bit build #2893: FAILURE in 6 min 12 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_64bit/2893/
2018-01-19T00:00:44Z stassats: something's up with git there
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2018-01-19T00:05:10Z scymtym: might be sourceforge. i'm suspending it for now
2018-01-19T00:05:37Z stassats: some instances have no problems
2018-01-19T00:06:15Z scymtym: hm, yeah, just trusty64 it seems
2018-01-19T00:06:33Z stassats: 32 too
2018-01-19T00:06:36Z scymtym: no, trust32 as well
2018-01-19T00:06:38Z scymtym: yeah
2018-01-19T00:10:39Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_32bit build #2893: FAILURE in 16 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_32bit/2893/
2018-01-19T00:16:15Z corci: Yippee, build fixed!
2018-01-19T00:16:15Z corci: Project sbcl-master » without-threads,ubuntu_trusty_64bit build #2893: FIXED in 22 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=ubuntu_trusty_64bit/2893/
2018-01-19T00:16:42Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2893: FAILURE in 22 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2893/
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2018-01-19T00:18:25Z corci: Project sbcl-master » ccl,ubuntu_trusty_32bit build #2893: FAILURE in 24 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_32bit/2893/
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2018-01-19T00:45:36Z corci: Yippee, build fixed!
2018-01-19T00:45:37Z corci: Project sbcl-master » ccl,ubuntu_trusty_64bit build #2893: FIXED in 51 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_64bit/2893/
2018-01-19T00:46:57Z corci: Project sbcl-master » fasteval,ubuntu_trusty_64bit build #2894: FAILURE in 1 min 13 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=ubuntu_trusty_64bit/2894/
2018-01-19T00:47:09Z corci: Project sbcl-master » default,ubuntu_trusty_32bit build #2894: FAILURE in 1 min 24 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=ubuntu_trusty_32bit/2894/
2018-01-19T00:47:10Z corci: Project sbcl-master » without-threads,ubuntu_trusty_64bit build #2894: FAILURE in 1 min 26 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=ubuntu_trusty_64bit/2894/
2018-01-19T00:47:11Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2894: FAILURE in 1 min 26 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2894/
2018-01-19T00:47:15Z nyef``: Would it make sense to have ONE project doing the git fetch, and the rest drawing from that?
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2018-01-19T01:18:19Z corci: Yippee, build fixed!
2018-01-19T01:18:20Z corci: Project sbcl-master » fasteval,ubuntu_trusty_32bit build #2894: FIXED in 32 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=ubuntu_trusty_32bit/2894/
2018-01-19T01:23:22Z corci: Yippee, build fixed!
2018-01-19T01:23:22Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_32bit build #2894: FIXED in 37 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_32bit/2894/
2018-01-19T01:26:50Z corci: Yippee, build fixed!
2018-01-19T01:26:51Z corci: Project sbcl-master » fasteval,MAC_OS_mavericks_64bit build #2894: FIXED in 41 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=MAC_OS_mavericks_64bit/2894/
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2018-01-19T01:30:27Z corci: Yippee, build fixed!
2018-01-19T01:30:27Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2894: FIXED in 44 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2894/
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2018-01-19T01:42:30Z corci: Yippee, build fixed!
2018-01-19T01:42:30Z corci: Project sbcl-master » ccl,ubuntu_trusty_32bit build #2894: FIXED in 56 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_32bit/2894/
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2018-01-19T01:55:48Z scymtym: nyef``: i will try that tomorrow
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2018-01-19T08:21:21Z guicho: is there a convenient function for measuring the word size of a structure?
2018-01-19T08:21:31Z guicho: sbcl-specific
2018-01-19T08:25:00Z guicho: I believe each structure-object consumes 2 words in addition to the slot values, but the source code is somewhat contrieved, and it also looks like there are more words consumed by the underlying simple-vector
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2018-01-19T08:56:36Z scymtym_: i'm experimenting with nyef``'s suggestion. sorry in case of spurious notifications
2018-01-19T08:57:07Z corci: Project sbcl-master » without-unicode,MAC_OS_mavericks_64bit build #2895: FAILURE in 2 min 43 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=MAC_OS_mavericks_64bit/2895/
2018-01-19T08:57:17Z corci: Project sbcl-master » without-threads,MAC_OS_mavericks_64bit build #2895: FAILURE in 2 min 52 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=MAC_OS_mavericks_64bit/2895/
2018-01-19T08:57:21Z corci: Project sbcl-master » fancy,MAC_OS_mavericks_64bit build #2895: FAILURE in 2 min 56 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=MAC_OS_mavericks_64bit/2895/
2018-01-19T08:57:46Z corci: Project sbcl-master » default,MAC_OS_mavericks_64bit build #2895: FAILURE in 3 min 21 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=default,label=MAC_OS_mavericks_64bit/2895/
2018-01-19T08:57:46Z corci: Project sbcl-master » fasteval,MAC_OS_mavericks_64bit build #2895: FAILURE in 3 min 21 sec: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=MAC_OS_mavericks_64bit/2895/
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2018-01-19T11:07:58Z scymtym_: implemented nyef``'s suggestion. git clone problems should now be apparent upfront, in a single job. the whole configuration matrix should not even start in case of a problem. the two windows jobs will continue to do their own clones, though
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2018-01-19T11:57:19Z stassats: guicho: there's no simple vectors in structures
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2018-01-19T12:50:38Z guicho: stassats: sorry you are right, I tested both standard one and :type vector one and was confusing the two results
2018-01-19T13:04:38Z guicho: by the way, I was a bit disappointed by that defstruct does not pack smaller integer slots into one word
2018-01-19T13:05:31Z guicho: I could avoid this by a little macrology, or using CFFI
2018-01-19T13:07:19Z guicho: otherwise I can't keep up with the space efficiency the other solvers are enjoying (cf. https://ipc2018.bitbucket.io/)
2018-01-19T13:08:40Z stassats: packing into one word complicates access, loses atomicity
2018-01-19T13:10:25Z guicho: yes, keeping it sufficiently general would be hard
2018-01-19T13:11:04Z guicho: btw what do you mean by atomicity?
2018-01-19T13:11:39Z stassats: what is usually meant by it
2018-01-19T13:12:13Z guicho: atomic access sounds parallelism-related
2018-01-19T13:14:01Z guicho: but it doesnt make sense in this context so I guess you meant another concept
2018-01-19T13:14:26Z stassats: uhm, why doesn't it make sense?
2018-01-19T13:15:56Z guicho: could a structure slot value hold some flag for blocking parallel write?
2018-01-19T13:19:26Z jdz: guicho: Why do you want structures to do that?  You can use LDB and DPB, right?
2018-01-19T13:21:09Z Shinmera: Convenience
2018-01-19T13:21:27Z guicho: jdz: that's what I meant by a little macrology (which wraps structs and integers)
2018-01-19T13:21:47Z jdz: Right.  There's also https://github.com/frodef/binary-types, which might or might not do what you want.
2018-01-19T13:23:51Z guicho: I checked it already, unfortunately it seems to use classes inside.
2018-01-19T13:26:44Z jdz: You could draw some inspiration from it and make your DEF-PACKED-STRUCT.
2018-01-19T13:27:28Z guicho: exactly.
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2018-01-19T13:38:09Z nyef``: CLOStrophobia all over again?
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2018-01-19T14:07:42Z pfdietz: So this readtable/global state change issue with asdf/quicklisp was known and being worked on.  Good.
2018-01-19T14:08:27Z stassats: with some asdf solution that will break things?
2018-01-19T14:08:42Z pfdietz: https://gitlab.common-lisp.net/asdf/asdf/blob/syntax-control/doc/syntax-control.md
2018-01-19T14:10:54Z pfdietz: I think the idea is that systems that aren't fooling around won't see or need changes.
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2018-01-19T14:19:48Z stassats: i think i see why interrupt-thread tests fail with "Interrupt thread failed: thread #<THREAD ABORTED {10026FFCD3}> has exited."
2018-01-19T14:19:56Z stassats: on non-windows safepoints
2018-01-19T14:20:55Z stassats: terminate thread enqueues an abort function and then wakes the thread, but i think the interrupt queue is processed before that
2018-01-19T14:23:05Z stassats: nyef``: need some sb-safepoint advice
2018-01-19T14:23:41Z stassats: does gc_advance(GC_INVOKED,GC_NONE) trigger a safepoint?
2018-01-19T14:24:21Z dougk_ quit (Ping timeout: 264 seconds)
2018-01-19T14:24:49Z stassats: if (gc_state.phase == GC_NONE) {gc_advance(GC_INVOKED,GC_NONE) ..}
2018-01-19T14:25:05Z nyef``: Yes. Sorry, was reading that backwards.
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2018-01-19T14:25:31Z stassats:     if (cur == old) return;, so i guess, it does nothing
2018-01-19T14:25:52Z stassats: err, no
2018-01-19T14:25:56Z nyef``: It runs through GC_FLIGHT and GC_MESSAGE on the way, so after that the only threads still running are in alien code or WITHOUT_INTERRUPTS.
2018-01-19T14:26:36Z nyef``: s/WITHOUT_INTERRUPTS/WITHOUT_GCING/.
2018-01-19T14:27:01Z nyef``: All in-lisp threads will have safepointed by then. Whichever thread is doing the gc_advance() is, by definition, no longer in-lisp.
2018-01-19T14:27:39Z stassats: scratch my analysis, i think i now really know what happens
2018-01-19T14:28:47Z nyef``: Safepoint is a tricky piece of synchronization, however you slice it. /-:
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2018-01-19T14:30:32Z stassats: terminate-thread is done after interrupt-thread, so i think it's somehow enqueuing it while it's still processing things
2018-01-19T14:31:05Z stassats: s/things/the previous interrupt/, so it doesn't need to be woken up, and the wake up wakes up a dead therad
2018-01-19T14:31:30Z stassats: but that's a hypothesis as well, i have nothing to back it up yet
2018-01-19T14:32:16Z stassats: while(check_pending_thruptions(ctxptr));
2018-01-19T14:32:18Z stassats: there you go
2018-01-19T14:34:06Z stassats: no idea how to solve it
2018-01-19T14:34:43Z stassats: if terminate-thread may be processed by the previous interrupt-thread invocation, then wake_thread shouldn't fail with "couldn't wake up a dead thread"
2018-01-19T14:37:00Z stassats: i can just check if the interrupt function had been invoked
2018-01-19T14:37:03Z stassats: ok, easy
2018-01-19T14:37:29Z nyef``: Yeah, I don't have the required state for this loaded right now, and don't have time this morning to try to load it.
2018-01-19T14:38:01Z stassats: just adding a closure in interrupt-thread, setting it to T and not erroring when wake-thread returns -1
2018-01-19T14:38:11Z stassats: do i need a barrier?
2018-01-19T14:38:56Z nyef``: CAS it?
2018-01-19T14:39:13Z nyef``: CAS automatically barriers.
2018-01-19T14:39:31Z stassats: i don't need to be atomic, it'll always be set to T, but i need the parent thread to see it
2018-01-19T14:39:35Z stassats: cas loops
2018-01-19T14:40:00Z nyef``: No contention.
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2018-01-19T14:40:43Z stassats: i always have trouble with choosing the right barriers and placing it at the right place
2018-01-19T14:41:37Z stassats: (barrier (:write) (setf invoked t)) and (not (barrier (:read) invoked))?
2018-01-19T14:42:36Z nyef``: I think you need the read barrier, but I forget what the semantics of the BARRIER macro are.
2018-01-19T14:42:53Z stassats: so, switching them?
2018-01-19T14:43:02Z nyef``: Both barriers.
2018-01-19T14:43:23Z nyef``: Wait, no... Safepoint itself barriers, doesn't it?
2018-01-19T14:43:55Z nyef``: Yeah, I don't have the head for this this morning.
2018-01-19T14:44:04Z stassats: i'm actually not protecting it with #+sb-safepoint
2018-01-19T14:45:20Z stassats: i think the same situation can happen without safepoints
2018-01-19T14:45:49Z stassats: i bet pkhuong knows what barriers to use
2018-01-19T14:50:29Z stassats: actually, i need (setf invoked t) to be written before any code is executed, not things read or written
2018-01-19T14:52:03Z stassats: soss, :memory?
2018-01-19T14:52:06Z stassats: so
2018-01-19T14:58:27Z stassats: (progn (setf invoked t) (barrier (:memory))) and (progn (barrier (:memory)) (not invoked))
2018-01-19T15:05:18Z stassats: doing that, it's not performance critical anyhow
2018-01-19T15:06:39Z stassats: ok, that should cut down on CI failures
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2018-01-19T15:19:20Z scymtym_: rewriting the test harness as an sb-test contrib already paid off in a small way: i didn't previously know that 10 seconds of our build time is spent in the interrupt-io test of the sb-bsd-sockets contrib
2018-01-19T15:21:08Z guicho quit (Remote host closed the connection)
2018-01-19T15:28:40Z scymtym_: and another ~ 16 seconds for sb-sprof tests
2018-01-19T15:33:20Z nyef``: A *mere* 16 seconds for sb-sprof? You must have a fast machine!
2018-01-19T15:33:31Z stassats: it's capped at 16
2018-01-19T15:33:36Z stassats: or 15, rather
2018-01-19T15:33:38Z nyef``: Since when?
2018-01-19T15:34:13Z stassats: time immemorial
2018-01-19T15:34:33Z nyef``: Hunh. 'cause that 16 seconds can take *minutes* on some of my hardware.
2018-01-19T15:34:42Z nyef``: Maybe even longer.
2018-01-19T15:39:15Z phoe: I get a really funny error message when evaluating #a()
2018-01-19T15:39:51Z phoe: Value of SB-IMPL::NEW-VALUE in (THE* (NIL CONTEXT AREF) NEW-VALUE) is NIL,not a NIL.
2018-01-19T15:40:04Z phoe: not only it doesn't inform the user what the hell is going on, it also assumes that NIL is not a NIL.
2018-01-19T15:40:11Z pkhuong: phoe: NIL is a NULL.
2018-01-19T15:40:13Z pkhuong: Nothing is a NIL.
2018-01-19T15:40:18Z nyef``: NIL is not a NIL. NIL is a NULL.
2018-01-19T15:40:24Z phoe: oh wait, it's a type there. Correct.
2018-01-19T15:40:32Z nyef``: By definition, nothing can be a NIL.
2018-01-19T15:40:45Z phoe: Yes, correct - I assumed it to be a value and not a type.
2018-01-19T15:41:21Z nyef``: That's actually occasionally confusing. Maybe ", which is not of type NIL" would be better?
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2018-01-19T15:41:40Z phoe: I think so, yes.
2018-01-19T15:42:03Z phoe: So that's two requests. One, about s/a/of type/; the other, about writing a proper error message for #a()
2018-01-19T15:42:13Z phoe: because NIL not being of type NIL is nonetheless not good.
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2018-01-19T16:25:23Z phoe: When compiling (/ (1+ fixnum) 6.0) with (optimize speed), I get a warning, unable to convert to multiplication by reciprocal because: 6.0 does not have an exact reciprocal
2018-01-19T16:26:02Z phoe: I understand that warning, but I want to figure out how to optimize this bit of code further.
2018-01-19T16:26:22Z phoe: (and so the warning disappears)
2018-01-19T16:27:40Z corci: Yippee, build fixed!
2018-01-19T16:27:40Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2901: FIXED in 54 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2901/
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2018-01-19T16:34:57Z _death: phoe: if you're satisfied with an approximate reciprocal, (* (/ 1.0 6.0) (1+ fixnum))
2018-01-19T16:35:42Z phoe: _death: I just found it, too. (* (1+ position) (/ 6.0))
2018-01-19T16:35:48Z phoe: Thanks!
2018-01-19T16:36:13Z phoe: One more optimization question, https://pastebin.com/vKvrykZU
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2018-01-19T16:36:41Z phoe: Loop on line 19 tells me:
2018-01-19T16:36:42Z phoe: ; note: unable to;   avoid runtime dispatch on array element type; due to type uncertainty:;   The first argument is a (VECTOR (UNSIGNED-BYTE 8)), not a SIMPLE-ARRAY.
2018-01-19T16:37:22Z phoe: How can I tell it that my octet-vector is indeed a simple-array?
2018-01-19T16:37:36Z _death: change your declaration?
2018-01-19T16:37:40Z Bike: (simple-array (unsigned-byte 8) (*))?
2018-01-19T16:38:14Z phoe: Oh. I actually didn't know that one. Let me try...
2018-01-19T16:38:34Z nyef``: clhs simple-vector
2018-01-19T16:38:34Z specbot: http://www.lispworks.com/reference/HyperSpec/Body/t_smp_ve.htm
2018-01-19T16:38:40Z phoe: no, I don't want these
2018-01-19T16:38:48Z phoe: simple-vectors are surprisingly cancerous.
2018-01-19T16:39:04Z nyef``: Ah. simple-vector doesn't allow type specialization.
2018-01-19T16:39:14Z phoe: it's dumb-vector.
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2018-01-19T16:39:38Z _death: what's the purpose of constructing iota?
2018-01-19T16:39:46Z Bike: simple-vector is a confusing type, but simple-array is pretty straightforward
2018-01-19T16:40:15Z whoman: 'simple'
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2018-01-19T16:40:40Z phoe: _death: if I replace the loop with (iota 3), https://pastebin.com/aBcTk9MS
2018-01-19T16:41:10Z _death: phoe: there's no need to construct a list in either case? just iterate
2018-01-19T16:41:29Z phoe: This function is surprisingly resistant to being optimized.
2018-01-19T16:41:33Z phoe: _death: hm. Right.
2018-01-19T16:41:49Z pfdietz_: (and (vector (unsigned-byte 8)) simple-array)  ?
2018-01-19T16:42:00Z Bike: seems overcomplicated
2018-01-19T16:42:15Z _death: also could use MAP there
2018-01-19T16:42:26Z phoe: _death: where exactly?
2018-01-19T16:42:40Z _death: the loop that builds BLEND
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2018-01-19T16:44:16Z stassats: phoe: #a(...) is an extension, it's not legal cl
2018-01-19T16:44:27Z phoe: stassats: I know, but nonetheless.
2018-01-19T16:45:23Z stassats: nonetheless what?
2018-01-19T16:45:44Z stassats: it's equivalent to (make-array nil :element-type nil)
2018-01-19T16:45:48Z stassats: it's equivalent to (make-array nil :element-type nil)
2018-01-19T16:46:38Z nyef``: So, an array of one element, specialized to hold elements of no type?
2018-01-19T16:46:45Z phoe: stassats: it doesn't give me a sane error message like "#A expects at least two arguments, valid dimensions and valid element type"
2018-01-19T16:47:00Z stassats: #a expects nothing, you shouldn't use it
2018-01-19T16:47:28Z phoe: okay
2018-01-19T16:47:44Z corci: Yippee, build fixed!
2018-01-19T16:47:44Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2901: FIXED in 1 hr 14 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2901/
2018-01-19T16:52:58Z stassats: and how are simple vectors cancerous?
2018-01-19T16:54:07Z whoman: cancer = organic mold/rot. i think you mean contageous.
2018-01-19T16:54:22Z stassats: cancer is not mold or rot
2018-01-19T16:54:36Z pfdietz_: They make him crabby?
2018-01-19T16:54:48Z phoe: stassats: vectors are one-dimensional arrays, simple-arrays are specializable arrays that aren't displaced etc., but simple-vectors for some reason are *not* one-dimensional specializable arrays that are not displaced, etc.
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2018-01-19T16:54:58Z whoman: well cancer might not be simple vectors at the very least of it
2018-01-19T16:55:22Z stassats: phoe: simple-vector is already specialized
2018-01-19T16:55:25Z phoe: the naming is inconsistent. (simple-array t (n)) /= (simple-vector t n).
2018-01-19T16:56:06Z phoe: stassats: is it? I thought it can hold everything, which means that it is not specialized.
2018-01-19T16:56:06Z _death: they are simple in that they are not specialized
2018-01-19T16:56:25Z stassats: phoe: it's specialized to T
2018-01-19T16:56:30Z phoe: _death: yes, that's what I am complaining about, it's a different kind of "simple" than in simple-array.
2018-01-19T16:57:03Z stassats: non specialized vector type is (simple-array * (*)
2018-01-19T16:57:11Z phoe: stassats: how is it different to specialize a vector to T than not to specialize it at all? Are there any optimizations that can be applied?
2018-01-19T16:57:29Z Bike: you can't not specialize a vector
2018-01-19T16:57:35Z _death: stassats: hmm, right
2018-01-19T16:57:39Z Bike: but you can talk about (simple-array *) as a type, which includes vectors of multiple specializations
2018-01-19T16:57:41Z stassats: if you declare a vector to be (simple-array t (*)) you can't pass it a ub vector
2018-01-19T16:57:53Z stassats: as they have different specialization
2018-01-19T16:58:09Z stassats: T is specialized to hold tagged objects
2018-01-19T16:58:41Z phoe: So it means that it cannot hold untagged objects?
2018-01-19T16:58:57Z phoe: Or that untagged objects are automatically tagged when they enter it?
2018-01-19T16:59:03Z pfdietz_: It can hold any lisp value.
2018-01-19T16:59:09Z phoe: ...wait, I think I just got it.
2018-01-19T16:59:37Z phoe: (unsigned-byte 8) isn't tagged when it is held inside an octet-vector.
2018-01-19T16:59:37Z Bike: the basic point without any talk of tagging is the not being able to pass a (simple-array t) to a function expecting a (simple-array (unsigned-byte whatever))
2018-01-19T17:00:17Z phoe: Okay. I got it now, and I got why it is like this.
2018-01-19T17:01:29Z pfdietz_: I suspect the inconsistency with simple- is historical baggage.
2018-01-19T17:01:56Z stassats: if you use simple-vector a lot, you're thankful there's a shortcut
2018-01-19T17:02:15Z stassats: i dread typing (simple-array (unsigned-byte 8) (*)) all the time
2018-01-19T17:02:35Z stassats: granted, it's easier with T
2018-01-19T17:02:56Z _death: deftype?
2018-01-19T17:03:20Z stassats: so that i have to parse two things when reading it?
2018-01-19T17:03:56Z stassats: i need to make emacs turn sub8 to (simple-array (unsigned-byte 8) (*))
2018-01-19T17:04:05Z _death: do you do that every time you encounter such a specifier? :)
2018-01-19T17:05:33Z stassats: phoe: is add-blends supposed to be fast?
2018-01-19T17:06:14Z stassats: then you shouldn't use assoc
2018-01-19T17:06:48Z phoe: stassats: the list is 12 elements long
2018-01-19T17:06:53Z stassats: without even hoisting it out
2018-01-19T17:08:02Z stassats: do not use symbols to represent colors, use structures that have their values attached
2018-01-19T17:08:58Z phoe: stassats: it's more complicated than that, color-1 and color-2 are keywords that tell me which *kind* of color I want there. it's double indirection - from the kind of color I get the index, from the index I get the gradient.
2018-01-19T17:09:03Z stassats: and your gethash should be hoisted out as well
2018-01-19T17:09:20Z phoe: hoisted out, what do you mean?
2018-01-19T17:09:25Z stassats: so you're jumping to optimizing array access too quickly
2018-01-19T17:09:55Z stassats: phoe: https://en.wikipedia.org/wiki/Loop-invariant_code_motion
2018-01-19T17:10:34Z phoe: I've already sped up this function 12x compared to before, which is satisfiable for me right now.
2018-01-19T17:10:37Z phoe reads up though
2018-01-19T17:12:12Z stassats: it would be 120x faster
2018-01-19T17:12:48Z phoe: what I understood from the article: I want the assoc-values and gethashes precomputed, as in, before I enter the loop.
2018-01-19T17:13:19Z stassats: and make-array
2018-01-19T17:13:41Z stassats: ok, it's copied, not make-array
2018-01-19T17:14:07Z stassats: joist hoist out whatever's not changing
2018-01-19T17:14:21Z phoe: okay, one second...
2018-01-19T17:14:41Z _death: you could also scan the alist once
2018-01-19T17:14:56Z phoe: yep. one second.
2018-01-19T17:15:42Z _death: though that may be a slower approach
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2018-01-19T17:16:30Z phoe: _death: slowe?
2018-01-19T17:16:34Z phoe: slower?*
2018-01-19T17:16:36Z pfdietz_: Once the alist us in L1 cache a second pass is probably fast.
2018-01-19T17:16:48Z DGASAU` is now known as DGASAU
2018-01-19T17:17:33Z stassats: phoe: how precise does your factor have to be?
2018-01-19T17:17:33Z _death: you then need to know when both colors were found
2018-01-19T17:17:41Z stassats: instead of multiplying it each time you can just add
2018-01-19T17:18:02Z stassats: for factor = 0.16666667 then (+ factor 0.16666667)
2018-01-19T17:19:27Z pfdietz_: Unroll the loop six times? :)
2018-01-19T17:20:38Z stassats: in any case, the float around (float (* (1+ position) (/ 6.0))) is redundant
2018-01-19T17:20:41Z _death: seems weird that it's hardcoded to 1/6
2018-01-19T17:21:47Z phoe: Okay. Almost finished with the unhoisting, https://pastebin.com/cDhdsVDG
2018-01-19T17:22:16Z stassats: still the silly iota
2018-01-19T17:22:19Z _death: could just avoid floating point
2018-01-19T17:22:28Z stassats: _death: would cons
2018-01-19T17:23:04Z phoe: stassats: oh right, for position below count
2018-01-19T17:23:12Z _death: stassats: why? x*255/k with int arithmetic
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2018-01-19T17:24:41Z phoe: https://pastebin.com/7C6iw59q - still got the warning around ROUND LERP though.
2018-01-19T17:25:13Z stassats: declare the result of lerp
2018-01-19T17:26:32Z phoe: declare it to be the float? the single-float? (the {single-,}float (lerp factor x y)) doesn't change the warning.
2018-01-19T17:26:33Z stassats: phoe: and you're putting the array into the hash-table, are you sure it's ok to hoist it?
2018-01-19T17:26:42Z stassats: phoe: the range
2018-01-19T17:27:10Z phoe: stassats: shit, you're right. I need to make it anew every time.
2018-01-19T17:27:22Z stassats: not a very efficient algorithm..
2018-01-19T17:28:16Z phoe: I need to cons up COUNT many 1kB arrays there no matter what I do.
2018-01-19T17:28:37Z stassats: can't you just modify the arrays in the hash-table in-place?
2018-01-19T17:28:46Z phoe: I am adding *new* ones.
2018-01-19T17:28:51Z phoe: these arrays don't exist yet.
2018-01-19T17:29:07Z _death: seems weird to lerp with factor>1..
2018-01-19T17:29:20Z stassats: what if (+ start position) is equal index-1 or index-2?
2018-01-19T17:29:27Z phoe: _death: where? my factor is meant to be 1/6, ..., 5/6
2018-01-19T17:29:44Z phoe: ...count is always 5
2018-01-19T17:29:51Z stassats: and index-1 and index-2 is ub8, why aren't you using an 255-element vector instead of a hash-table?
2018-01-19T17:29:54Z phoe: I can turn it into a constant.
2018-01-19T17:30:19Z phoe: stassats: I think I can.
2018-01-19T17:30:39Z _death: phoe: misread the code
2018-01-19T17:30:57Z phoe: _death: it's a good one though, I unnecessarily have COUNT there because it's always 5.
2018-01-19T17:31:11Z stassats: or a (255 1024) array
2018-01-19T17:31:30Z stassats: or a (* 255 1024) vector (vectors are faster than md arrays)
2018-01-19T17:31:40Z phoe: md?
2018-01-19T17:31:47Z phoe: oh
2018-01-19T17:31:50Z phoe: multidimensional
2018-01-19T17:32:28Z stassats: md arrays are just vectors with a transform for indexes
2018-01-19T17:32:38Z stassats: so using vectors directly can be faster
2018-01-19T17:33:35Z stassats: and you can do a different access pattern for more locality
2018-01-19T17:34:10Z phoe: stassats: I still don't know what about lerp I need to declare. Range of what exactly?
2018-01-19T17:34:27Z phoe: Typing X and Y doesn't change anything, and factor is already a single-float.
2018-01-19T17:34:52Z phoe: stassats: I'll turn it into a vector later on.
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2018-01-19T17:37:54Z _death: phoe: so again, you don't need floating point.. b[i] = x[i]+f*(y[i]-x[i])/6 for f [0,6]
2018-01-19T17:38:16Z stassats: phoe: the range of what lerp returns
2018-01-19T17:38:20Z phoe: _death: one second - one thing at a time.
2018-01-19T17:39:19Z stassats: since the rounded number is stuffed into a ub8 array, i can deduce that the range is 0 255
2018-01-19T17:39:56Z phoe: for lerp of-type (unsigned-byte 8) = (round (lerp factor x y))
2018-01-19T17:40:00Z phoe: I still get the warning.
2018-01-19T17:40:11Z stassats: uhm, the lerp return value, not round
2018-01-19T17:40:24Z stassats: (the (single-float 0.0 (256.0)) (lerp))
2018-01-19T17:41:19Z stassats: but hash-table access and array creation will dominate, so focus on making it one big array
2018-01-19T17:42:45Z phoe: today is the first day when i use abbreviations in float types.
2018-01-19T17:42:47Z phoe: stassats: thanks
2018-01-19T17:42:57Z phoe: yes, I'll turn that into a vector.
2018-01-19T17:43:27Z stassats: abbreviations? but they're not shorter!
2018-01-19T17:43:48Z phoe: stassats: uh, how do you call FOO BAR in type specifier (single-float foo (bar))
2018-01-19T17:44:33Z phoe: arguments. right.
2018-01-19T17:46:28Z stassats: for some reason (round (single-float 0.0 (255.5))) isn't derived as (unsigned-byte 8)
2018-01-19T17:46:44Z stassats: (single-float 0.0 255.49999) is
2018-01-19T17:47:10Z _death: should likely be (single-float 0.0 255.0) no?
2018-01-19T17:47:41Z stassats: i can only deduce from the result of round how lerp operates
2018-01-19T17:47:47Z phoe: my lerp should actually be between 0 and 1
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2018-01-19T17:49:13Z phoe: wait a second, uh
2018-01-19T17:49:21Z phoe: no, factor is between 0 and 1, not lerp
2018-01-19T17:49:35Z phoe: I need to take a break soon
2018-01-19T17:50:01Z phoe: stassats: for some reason? 255.5 gets rounded up to 256, and this one more than ub8 can contain
2018-01-19T17:50:20Z phoe: 255.499 is rounded downwards to 255, 255.5 upwards to 256
2018-01-19T17:50:30Z nyef``: ... Is it round-to-even?
2018-01-19T17:50:37Z _death: round to even
2018-01-19T17:50:39Z phoe: nyef``: yes
2018-01-19T17:50:55Z nyef``: Is that the rule that you really want to use, then?
2018-01-19T17:51:41Z phoe: yes, I don't care that much about if the pixel's R or G or B value is going to be one off.
2018-01-19T17:51:45Z nyef``: Hint: "Yes" is a perfectly valid answer. As are "no" and "I don't know, let me think about that."
2018-01-19T17:53:30Z phoe: stassats: I know why I'm not using a big ub8 vector - from these 256 elements that I have, only 48 will be populated
2018-01-19T17:53:48Z phoe: ...but, uh, these are the first 48 ones
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2018-01-19T17:53:55Z phoe: so I can do a vector anyway.
2018-01-19T17:54:16Z phoe: thanks! this was a pretty nice lesson.
2018-01-19T17:54:47Z phoe runs off
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2018-01-19T18:07:41Z stassats: phoe: and a hash-table will probably take up just as much space
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2018-01-19T18:29:15Z corci: Project sbcl-master » fancy,ubuntu_trusty_64bit build #2902: FAILURE in 30 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_64bit/2902/
2018-01-19T18:29:16Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2902: FAILURE in 30 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2902/
2018-01-19T18:29:17Z corci: Project sbcl-master » ccl,ubuntu_trusty_64bit build #2902: FAILURE in 30 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_64bit/2902/
2018-01-19T18:29:31Z stassats: oh no
2018-01-19T18:31:09Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2902: FAILURE in 32 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2902/
2018-01-19T18:31:10Z corci: Project sbcl-master » ccl,ubuntu_trusty_32bit build #2902: FAILURE in 32 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_32bit/2902/
2018-01-19T18:37:17Z stassats: scymtym_: could it be because there's a new upstream fetch so the tarball is deleted?
2018-01-19T18:40:13Z nyef``: ... I didn't have a "fetch-to-tarball" in mind when I made that suggestion. I had "clone from local repository" in mind.
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2018-01-19T18:45:33Z scymtym_: stassats: i think i missed removing the trigger from sbcl-master. investigating …
2018-01-19T18:46:31Z scymtym_: nyef``: it fetches (not clones) into a local "workspace", then makes a tar-archive to distribute to a bunch of machines. do you see a way to simplify that?
2018-01-19T18:47:15Z nyef``: I have no idea. Jenkins and its constraints are not my strong point, nor likely ever to be.
2018-01-19T18:48:32Z scymtym_: something something so you don't have to
2018-01-19T18:49:04Z scymtym_: i think the fetch job just has to keep the archives a bit longer
2018-01-19T18:50:14Z stassats: can it cross-depend?
2018-01-19T18:50:31Z scymtym_: can you rephrase?
2018-01-19T18:50:57Z stassats: on sbcl-master
2018-01-19T18:51:43Z scymtym_: like blocking sbcl-master-fetch until sbcl-master is done?
2018-01-19T18:51:49Z stassats: yes
2018-01-19T18:52:06Z scymtym_: i wouldn't know how
2018-01-19T18:54:21Z scymtym_: i will try to just have sbcl-master-fetch keep archives around longer. the problem was that sbcl-master-fetch ran again, deleting the previous archive, before all sbcl-master jobs could fetch it
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2018-01-19T18:59:14Z corci: Project sbcl-master-windows » Windows_7_32bit build #1809: FAILURE in 29 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1809/
2018-01-19T18:59:39Z stassats: that's normal
2018-01-19T19:01:06Z scymtym_: if anybody wants to give feedback regarding the "user interface", a prototype sb-test contrib is at https://github.com/scymtym/sbcl/tree/wip-sb-test . test with e.g. sh make-target-contrib.sh ; cd tests ; sh run-tests.sh sh clos-1.impure.lisp arith.pure.lisp (sb-{sprof,bsd-sockets} will use it for their tests and apparently fail)
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2018-01-19T19:24:44Z corci: Yippee, build fixed!
2018-01-19T19:24:45Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2903: FIXED in 53 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2903/
2018-01-19T19:33:09Z corci: Yippee, build fixed!
2018-01-19T19:33:10Z corci: Project sbcl-master » ccl,ubuntu_trusty_32bit build #2903: FIXED in 1 hr 1 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_32bit/2903/
2018-01-19T19:33:21Z corci: Yippee, build fixed!
2018-01-19T19:33:21Z corci: Project sbcl-master » fancy,ubuntu_trusty_64bit build #2903: FIXED in 1 hr 1 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fancy,label=ubuntu_trusty_64bit/2903/
2018-01-19T19:46:08Z corci: Yippee, build fixed!
2018-01-19T19:46:08Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2903: FIXED in 1 hr 14 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2903/
2018-01-19T19:51:35Z corci: Yippee, build fixed!
2018-01-19T19:51:35Z corci: Project sbcl-master » ccl,ubuntu_trusty_64bit build #2903: FIXED in 1 hr 20 min: http://ci.cor-lab.de/job/sbcl-master/featureset=ccl,label=ubuntu_trusty_64bit/2903/
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2018-01-19T22:19:34Z corci: Yippee, build fixed!
2018-01-19T22:19:34Z corci: Project sbcl-master-windows » Windows_7_32bit build #1810: FIXED in 29 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1810/
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2018-01-20T14:40:58Z stassats: i can trivially record atom forms for errors and get them displayed by sbcl, but more trouble with trying to use that information in slime
2018-01-20T14:41:29Z stassats: it records source positions by installing reader macros for #\( and so on, but there's no reader macro for X in (progn x)
2018-01-20T14:42:34Z stassats: i guess i ought to use form-tracking-stream
2018-01-20T14:44:57Z stassats: but form-tracking-stream is an fd-stream
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2018-01-20T15:14:49Z stassats: thinking about changing what the reader produces when compiling
2018-01-20T15:15:23Z stassats: wrapping each form into a structure, which stores the source position, then there'll be no problem locating atoms
2018-01-20T15:15:55Z stassats: this is getting more involved
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2018-01-20T15:54:26Z scymtym: sounds like syntax objects
2018-01-20T16:01:56Z pfdietz: You could have a read table in which all characters are macro characters, so there are reader macros even for X.
2018-01-20T16:02:22Z pfdietz: This would not be the standard read table.
2018-01-20T16:03:03Z nyef``: ... That doesn't seem like it would make sense in a unicode world.
2018-01-20T16:03:36Z nyef``: In terms of readtable storage and initialization.
2018-01-20T16:05:03Z pfdietz: Can do whatever we want for non-standard characters in the standard read table, so make all those extra characters share a common reader macro?
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2018-01-20T17:11:49Z phoe: pfdietz: this sounds sane
2018-01-20T17:12:16Z phoe: if the character is not found in the list of 256 ASCII characters or what not (if char-code is 256 or more), then fire this function
2018-01-20T17:13:09Z stassats: why would i add a gazillion of reader macros when i'm modifying the reader?
2018-01-20T17:15:52Z nyef``: That, too. Sometimes, the correct customization is to ignore the customization hook and do something with the underpinnings instead.
2018-01-20T17:17:45Z stassats: currently, the source forms are tracked using a hash-table, which, obviously, doesn't work for atoms
2018-01-20T17:18:29Z stassats: i got it to work for reporting which form is producing errors by using the conses the car of which the atom comes from
2018-01-20T17:18:59Z stassats: but that doesn't work well when trying to get the character position
2018-01-20T17:19:53Z stassats: so, wrapping source forms in some kind of structure will allow to dispense with the hash-table and atoms will be identifiable
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2018-01-20T17:42:18Z stassats: except, how do i make that work with macros
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2018-01-20T17:57:47Z stassats: ok, i guess can't use it for compilation, just for mapping form numbers to characters
2018-01-20T17:58:09Z stassats: form-tracking-stream kinda allows that already, except that it's an fd-stream
2018-01-20T17:59:02Z pfdietz: record the position of the car in the info for the cons?
2018-01-20T17:59:21Z pfdietz: (and similarly for things like #(...))
2018-01-20T18:00:54Z pfdietz: Macros will still give you conses that lack information, though.
2018-01-20T18:03:59Z jsnell: the problem is that you need to pass macros the raw s-expression, not a tree of wrapper objects
2018-01-20T18:08:31Z jsnell: you could do things like convert macro arguments from the wrapped format to raw, and then map any atoms in the returned form back to the wrapped ones. but that breaks down if there are multiple instances of the same atom in the input form
2018-01-20T18:10:40Z stassats: i don't really need character positions at compile time, form numbers will do
2018-01-20T18:10:55Z stassats: in fact, that already works
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2018-01-20T18:11:10Z stassats: (lambda () x) =>
2018-01-20T18:11:10Z stassats: ; in: LAMBDA ()
2018-01-20T18:11:10Z stassats: ;     X
2018-01-20T18:11:20Z stassats: instead of ; in: LAMBDA () ;     (LAMBDA () X)
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2018-01-20T19:37:05Z stassats: and after some horrible hacks: https://i.imgur.com/uATkhD7.png
2018-01-20T19:40:13Z stassats: or https://i.imgur.com/uATkhD7.png
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2018-01-20T19:56:15Z stassats: and more https://i.imgur.com/bF4xUA8.png
2018-01-20T19:56:29Z stassats: so, PoC—it works
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2018-01-20T20:04:52Z stassats: but there's a lot to be done between this and something usable. and macros that don't reuse original conses will break it
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2018-01-20T20:11:02Z stassats: can dead reckon to unique atoms
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2018-01-20T20:55:57Z stassats: https://i.imgur.com/hhNQ3YK.png
2018-01-20T20:56:11Z stassats: (m) is highlighted as a whole, but i guess it's a minor annoyance
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2018-01-20T21:01:16Z stassats: not really, that makes (unused used) highlighted
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2018-01-20T21:13:47Z stassats: https://i.imgur.com/jurVZxg.png
2018-01-20T21:20:08Z corci: Yippee, build fixed!
2018-01-20T21:20:09Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2906: FIXED in 21 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2906/
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2018-01-20T23:08:51Z corci: Project sbcl-master-windows » Windows_7_32bit build #1813: FAILURE in 28 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1813/
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2018-01-21T00:34:01Z corci: Yippee, build fixed!
2018-01-21T00:34:01Z corci: Project sbcl-master-windows » Windows_7_32bit build #1814: FIXED in 28 min: http://ci.cor-lab.de/job/sbcl-master-windows/label=Windows_7_32bit/1814/
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2018-01-21T09:38:44Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_64bit build #2909: FAILURE in 6 hr 40 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_64bit/2909/
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2018-01-21T10:48:51Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2909: FAILURE in 7 hr 50 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2909/
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2018-01-21T16:18:55Z pagnol: Hi, I'm getting a "Heap exhausted" error while trying to compile a library with SBCL 1.4.3 and user phoe over on #lisp suggested that I report it here: https://gist.github.com/anonymous/706f615c5247fd1ad86997e26239ef65
2018-01-21T16:20:22Z pagnol: I'd be grateful if someone here could take a look
2018-01-21T16:21:42Z jackdaniel: first of all, you shouldn't use require, ASDF hacks into require hooks if implementation provides them. use asdf:load-system (or ql:quickload). if it still blows, try loading manually file by file to narrow the problem to the file (in slime it is C-c C-k in file buffer), and then try loading toplevel-form after toplevel-form (C-c C-c) to narrow the problem to the specific construct
2018-01-21T16:22:14Z jackdaniel: than try to make a minimal reproducible case which may be easily reproduced by anyone having slime open
2018-01-21T16:24:04Z pagnol: jackdaniel, ok, thanks, I can work with that
2018-01-21T16:24:30Z nyef``: Or it could be a "legitimate" heap-out, in which case increasing the dynamic space size might help.
2018-01-21T16:24:43Z pagnol: I only used require after ql:quickload kept getting stuck, to find out if it's related to quicklisp in any way
2018-01-21T16:24:48Z jackdaniel: right
2018-01-21T16:25:03Z jackdaniel: you may add :verbose t to quickload
2018-01-21T16:25:03Z pagnol: two other users on #lisp experienced the same issue
2018-01-21T16:25:17Z jackdaniel: nyef``: it is a little unlikely because from what I've read on #lisp the same applies to ccl
2018-01-21T16:25:31Z jackdaniel: and ccl is much more conservative with heap expenses
2018-01-21T16:25:48Z pagnol: err... I did not yet try compiling it with ccl, but according to the library's author it works with ccl
2018-01-21T16:26:33Z jackdaniel: hm, then maybe I've skimmed backlog wrong, sorry about that
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2018-01-21T16:26:56Z pagnol: anyways I'm to try compiling with ccl now
2018-01-21T16:26:58Z jackdaniel: in that case try increasing memory for heap
2018-01-21T16:26:59Z pagnol: going *
2018-01-21T16:27:35Z jackdaniel: sbcl --dynamic-space-size=8192 # for instance
2018-01-21T16:28:25Z pagnol: 8gb?
2018-01-21T16:28:34Z pagnol: pretty generous
2018-01-21T16:29:03Z jackdaniel: it doesn't mean sbcl eats all of it if it doesn't have to
2018-01-21T16:29:18Z jackdaniel: memory sharing at your rescue
2018-01-21T16:30:02Z jackdaniel: virtual memory*
2018-01-21T16:31:03Z nyef``: It's an address-space allocation, not necessarily a memory allocation.  That said, mind your overcommit configuration.
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2018-01-21T17:05:07Z pagnol: jackdaniel, apparently it worked!
2018-01-21T17:05:30Z pagnol: it's taken me so long because I was incredulous at first, but it actually works
2018-01-21T17:05:38Z pagnol: thank you so much
2018-01-21T17:05:43Z jackdaniel: cool, so it wasn't a problem with SBCL an environment limitations
2018-01-21T17:05:49Z pagnol: apparently
2018-01-21T17:06:03Z jackdaniel: s/an/but rather with an/
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2018-01-21T17:07:47Z phoe: jackdaniel: I might actually experiment with binary-types a little bit
2018-01-21T17:07:58Z phoe: to see what exactly inside it breaks.
2018-01-21T17:08:47Z jackdaniel: phoe: it looks like compiler uses more than 1GB when compiling it, doesn't look like something breaks whatsoever
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2018-01-21T17:10:27Z phoe: jackdaniel: yep, that's what I see. I just wonder if I can tweak the source code and/or SBCL compilation flags in a way that will not make SBCL explode when compiling with standard heap size.
2018-01-21T17:13:30Z _death: ${DEFAULT_DYNAMIC_SPACE_SIZE} ought to be enough for anybody
2018-01-21T17:14:06Z phoe: that is my assumption, too
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2018-01-21T17:32:13Z stassats: the function it compiles to is 232KB
2018-01-21T17:33:11Z scymtym burned on all his SBCL bandwidth for trying a gazillion ways to rearrange variable and function name validation and ir1 conversion of binding constructs
2018-01-21T17:33:24Z stassats: and is around 500 liens long
2018-01-21T17:33:34Z stassats: so, don't be writing functions like that
2018-01-21T17:34:02Z stassats: scymtym: what were you trying to do?
2018-01-21T17:35:06Z stassats: i did https://i.imgur.com/hhNQ3YK.png yesterday
2018-01-21T17:36:58Z stassats: and there's not much left to do before shipping it
2018-01-21T17:39:22Z scymtym: stassats: that's really nice. i should probably revisited some of my previous "more accurate error source locations" changes and see whether they can benefit from your changes
2018-01-21T17:41:37Z stassats: basically i'm just using the parent conses, that's why the whole (m) is highlighted there, but i found a way to highlight just the M
2018-01-21T17:41:40Z scymtym: stassats: what i wanted to do toady is reorganize and consistently use the various legal-{fun,var}-name-p, check-{fun,var}-name[-for-binding] functions, make the LET, FLET, MACROLET and friends ir1 translators more uniform and improve error source locations for errors from [SYMBOL-]MACROLET
2018-01-21T17:42:22Z scymtym: i'm slowly getting there, i think
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2018-01-21T17:43:05Z stassats: and i modified the reader to optionally wrap each form with its boundaries, that way slime can actually parse the new info
2018-01-21T17:45:47Z scymtym: like (FORM (START-CHAR-POS . END-CHAR-POS))?
2018-01-21T17:45:56Z stassats: except it's a structure
2018-01-21T17:47:04Z stassats: but i'm going to modify the form-tracking-stream to be usable on any stream, not just fd-stream, and then make it able to perform modifications to the results
2018-01-21T17:48:28Z nyef``: stassats: This sounds like a huge win, and likely not something that I would know where to start with.
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2018-01-21T17:55:07Z stassats: and it seems that it doesn't break backwards compatibility with slime, as it just ignores the additional forms
2018-01-21T17:55:31Z stassats: but i also need to adjust error locations, and source locations, as i want defstruct slots to be M-.able
2018-01-21T17:55:58Z stassats: as defclass slots are (since :accessor will always have a cons structure)
2018-01-21T18:00:42Z stassats: macros, as always, can mess things up
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2018-01-21T19:43:26Z scymtym: i'm not sure why we have this: (sb-int:valid-function-name-p '(defmacro (setf foo))) => T, FOO. there is a comment mentioning (DEFMACRO (SETF FOO)) but i'm pretty sure that's illegal. also, the whole thing doesn't seem to be ever called, at least during self-build
2018-01-21T19:45:24Z nyef``: SETF was rather a bit different in the CLtL1 days, and there may have been alternate branches of development as well. SBCL used to have a rather CLtL1 version of SETF, with various bits being ANSIfied but several CLtL1isms remaining.
2018-01-21T19:46:41Z nyef``: Is this the src/code/function-names.lisp implementation or the contrib/sb-introspect/introspect.lisp implementation?
2018-01-21T19:48:22Z scymtym: nyef``: src/code/function-names.lisp
2018-01-21T19:49:00Z nyef``: Looks like the second value is only used by FUN-NAME-BLOCK-NAME ?
2018-01-21T19:49:19Z scymtym: the sb-introspect one calls the other one
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2018-01-21T19:49:36Z scymtym: yes
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2018-01-21T19:50:15Z scymtym: but the defmacro and macrolet "syntaxes" seem to be unused. at least by SBCL itself
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2018-01-21T19:51:10Z nyef``: Ah. Hunh.
2018-01-21T19:51:44Z nyef``: I've got nothing.
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2018-01-21T19:52:33Z scymtym: SETF and in particular CAS make sense as extended syntaxes. DEFMACRO and MACROLET - not so much as far as i can tell
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2018-01-21T20:10:14Z scymtym: (defun (setf (defmacro (setf bar))) ()) is only prevented by package locks not using the function name syntax mechanism
2018-01-21T20:10:58Z scymtym: after fixing package locks in that regard, the above function is accepted :)
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2018-01-21T20:28:13Z nyef``: ... Are you also going to provide a mechanism by which CLIM's SETF* functions can be realized?
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2018-01-21T20:31:54Z scymtym: i'm only planning to remove things. the above was intended to demonstrate that the DEFMCARO syntax should be removed
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2018-01-21T21:35:50Z Xof: I don't know where DEFMACRO/MACROLET function names come from
2018-01-21T21:38:32Z Xof: Woo, it's jsnell's fault
2018-01-21T21:39:04Z Xof: for xref purposes
2018-01-21T21:39:45Z nyef``: Xof: When do you anticipate code freeze starting this month?
2018-01-21T21:40:03Z Xof: argh
2018-01-21T21:40:09Z nyef`` would like to get some PPC changes in before the freeze starts, or permission to merge them during freeze.
2018-01-21T21:40:20Z Xof: realistically you have at least 24 hours
2018-01-21T21:40:23Z nyef``: Thank you.
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2018-01-21T22:20:14Z scymtym: Xof: it seems DEFMACRO has been changed to no longer depend on the special function name syntax in the meantime
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2018-01-22T02:20:02Z corci: Yippee, build fixed!
2018-01-22T02:20:02Z corci: Project sbcl-master » without-unicode,MAC_OS_mavericks_64bit build #2910: FIXED in 26 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=MAC_OS_mavericks_64bit/2910/
2018-01-22T02:23:49Z corci: Yippee, build fixed!
2018-01-22T02:23:50Z corci: Project sbcl-master » without-unicode,ubuntu_trusty_64bit build #2910: FIXED in 30 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-unicode,label=ubuntu_trusty_64bit/2910/
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2018-01-22T02:59:49Z corci: Yippee, build fixed!
2018-01-22T02:59:49Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2910: FIXED in 1 hr 6 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2910/
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2018-01-22T18:49:24Z nyef``: dougk: Regarding PPC and :GCC-TLS, there is also a call to pthread_getspecific() in ppc-assem.S.  AFAIK, these are the only uses on PPC.
2018-01-22T18:50:41Z dougk_: sure, but what are you trying to say? removing them would allow gcc-tls to be the default, but I'm insufficiently interested to fix them presently
2018-01-22T18:51:03Z nyef``: Just pointing out the option, I guess.
2018-01-22T18:51:15Z nyef``: Is there any documentation on how gcc-tls works on PPC?
2018-01-22T18:51:35Z nyef``: I can queue it for "possibly sometime in the next month or so".
2018-01-22T18:55:13Z dougk: dunno. with arm64, i looked at some code produced by the C compiler and adjusted it
2018-01-22T18:55:46Z nyef``: Fair enough. Thanks.
2018-01-22T18:58:56Z pkhuong: nyef``: not in https://www.akkadia.org/drepper/tls.pdf sadly. https://www.uclibc.org/docs/tls-ppc.txt looks legit.
2018-01-22T19:07:29Z nyef``: pkhuong: Thank you.
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2018-01-22T21:52:28Z corci: Yippee, build fixed!
2018-01-22T21:52:28Z corci: Project sbcl-master » without-threads,MAC_OS_mavericks_64bit build #2917: FIXED in 23 min: http://ci.cor-lab.de/job/sbcl-master/featureset=without-threads,label=MAC_OS_mavericks_64bit/2917/
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2018-01-22T22:08:34Z corci: Yippee, build fixed!
2018-01-22T22:08:35Z corci: Project sbcl-master » fasteval,MAC_OS_mavericks_64bit build #2917: FIXED in 39 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=MAC_OS_mavericks_64bit/2917/
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2018-01-23T01:10:12Z nyef``: Okay, I think I've commit everything that I have planned for this release, with the exception of NEWS updates.
2018-01-23T01:10:30Z nyef``: Or, at least, everything that I have planned and no subsequently cancelled or deferred. (-:
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2018-01-23T15:13:34Z flip214: is it typical that a hash-table with 234k elements has a size of 64M entries?
2018-01-23T15:19:49Z pfdietz: Did it have more at some point?
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2018-01-23T15:35:22Z stassats: flip214: yes, if :size was given
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2018-01-23T16:32:30Z flip214: stassats: that's not the case... a (make-hash-table) that got entries added via (setf (gethash ...)), nothing else
2018-01-23T16:34:05Z scymtym: i tried (loop with ht = (make-hash-table) for i :from 0 :to 200000 do (setf (gethash i ht) i) finally (return (hash-table-size ht))) => 262144. that seems fine
2018-01-23T16:43:38Z flip214: reproducible for me.
2018-01-23T16:43:48Z flip214: shortly before running OOM I can get
2018-01-23T16:43:49Z flip214: Count: {[1] 926449 []}
2018-01-23T16:43:50Z flip214: Size: {[2] 33554432 []}
2018-01-23T16:43:54Z flip214: from the inspector.
2018-01-23T16:44:14Z flip214: (Please ignore the [] thingies, these are because of highlightning)
2018-01-23T16:44:42Z stassats: what is reproducible?
2018-01-23T16:45:20Z flip214: perhaps it's because the hashtable is being used by multiple threads?
2018-01-23T16:45:29Z flip214: I forgot :synchronized T!
2018-01-23T16:45:41Z flip214: stassats: that "size" is more than twice "count"
2018-01-23T16:45:48Z nyef```: flip214: "Your fault, core dumped."
2018-01-23T16:46:24Z flip214: nyef```: "but not for very much longer"
2018-01-23T16:46:58Z flip214: currently at
2018-01-23T16:46:59Z flip214: Count: {[1] 459889 []}
2018-01-23T16:46:59Z flip214: Size: {[2] 524288 []}
2018-01-23T16:47:11Z flip214: reaching 1M...
2018-01-23T16:50:38Z flip214: 2.5M of 4M entries used
2018-01-23T16:55:42Z flip214: thanks a lot...
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2018-01-23T16:55:48Z flip214: just needed someone to talk to, as usual.
2018-01-23T16:56:34Z pfdietz_: Do hashtables shrink back down if they get too sparse?
2018-01-23T16:57:25Z pfdietz_: Not required by standard that they do.
2018-01-23T16:57:32Z flip214: I only employ the most richest of all hashtables... they'll never be more than 0.5 sparse!   ;)
2018-01-23T16:58:33Z flip214: no, I don't remove entries from that one. it'll be GCed when the build process is done, along with the whole SBCL process.
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2018-01-24T04:56:31Z corci: Yippee, build fixed!
2018-01-24T04:56:32Z corci: Project sbcl-master » fasteval,ubuntu_trusty_32bit build #2924: FIXED in 33 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=ubuntu_trusty_32bit/2924/
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2018-01-24T07:22:41Z corci: Yippee, build fixed!
2018-01-24T07:22:41Z corci: Project sbcl-master » fasteval,MAC_OS_mavericks_64bit build #2925: FIXED in 39 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=MAC_OS_mavericks_64bit/2925/
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2018-01-24T10:44:26Z phoe: shouldn't SBCL signal style-warnings when there's unused arguments in DEFMETHODs?
2018-01-24T10:45:02Z phoe: https://pastebin.com/D45SxFjC
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2018-01-24T11:00:21Z Baggers: what are the definitions of 'descriptor value' & 'descriptor object'? (source & irc logs show many examples of uses but I didnt find a definition of the same kind as things like Storage Base have)
2018-01-24T11:02:48Z jdz: phoe: I remember such warnings being issued, and finding it annoying.  But adding a T specialiser would make the warnings go away.  Don't remember which implementation, though.
2018-01-24T11:03:46Z jdz: In other words, methods use the arguments to construct the effective method, right?
2018-01-24T11:04:05Z phoe: jdz: I don't consider them annoying, actually. I prefer the implementation to tell me that I have unused variables - in 95% cases it means that I made a typo or a logic mistake.
2018-01-24T11:04:30Z jdz: Not in methods -- it's perfectly normal to have an around method that does not use any arguments.
2018-01-24T11:05:04Z phoe: Yes, I see. My instinct is to explicitly ignore the arguments I don't use anyway.
2018-01-24T11:05:32Z jdz: I'd be happy with the middle ground on warning on unqualified arguments, but not warning with a T specialiser.
2018-01-24T11:05:49Z phoe: I'd enjoy a switch in SBCL that turns on warnings like that - I remember stassats talking about it one day, in context of the removed "implicitly creating a new generic function" warning that I also miss.
2018-01-24T11:05:53Z jdz: And, as I said, I remember this being the case.
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2018-01-24T12:02:33Z Baggers: what are the definitions of 'descriptor value' & 'descriptor object'? (source & irc logs show many examples of uses but I didnt find a description of the same kind as things like Storage Base have)
2018-01-24T12:13:24Z Baggers: I should probably clarify that this is asked in relation to things like descriptor-reg, which are commented 'pointer descriptor objects' (which could suggest other kinds of descriptor-object)
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2018-01-24T12:48:50Z Baggers: what does DFO stand for. I'm assuming something like data flow order but its not in the TLA file
2018-01-24T13:16:24Z stassats: depth first order
2018-01-24T13:18:39Z Baggers: stassats: thanks. I'm not sure how that fits with compiler/dfo.lisp or cblock comments talking about 'DFO analysis numbers' but I'll keep reading.
2018-01-24T13:19:33Z stassats: how it fits? it's what it does
2018-01-24T13:22:26Z Baggers: stassats: sorry, just me confusing myself. thanks for the help
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2018-01-24T14:03:13Z guicho: stassats: hey, I noticed your latest change regarding object-size. thank you
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2018-01-24T14:24:53Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2925: FAILURE in 7 hr 41 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2925/
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2018-01-24T15:02:33Z Baggers: are descriptors pointers to objects managed by the gc?
2018-01-24T15:06:31Z Baggers: scratch that, vm.lisp says immediate descriptor objects include fixnums & characters, so im still barking up the wrong tree
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2018-01-24T15:14:31Z nyef: Baggers: "descriptors" are "tagged objects", that is they represent lisp objects.
2018-01-24T15:15:01Z nyef: A descriptor-reg "can hold a lisp object", either a pointer or an immediate *in boxed form*.
2018-01-24T15:15:42Z nyef: A non-descriptor-reg can hold *anything*, but it won't be updated when a GC occurs.
2018-01-24T15:16:52Z Baggers: nyef: thankyou!
2018-01-24T15:17:54Z nyef: Note that the set of "boxed regs" is a superset of "descriptor regs": There is typically at least ONE register which is boxed but has a dedicated purpose that prevents its general use.
2018-01-24T15:21:50Z Baggers: nyef: good to know, thanks
2018-01-24T15:30:12Z nyef: ... And then there are "interior pointers". At the very least, the behavior for those with respect to the GC is documented in gc-common.c, in and around scavenge_interrupt_context().
2018-01-24T15:30:52Z nyef: And some of this is specific to non-x86oid systems, at least as far as GC semantics goes, but the consequences on the compiler side are fairly universal.
2018-01-24T15:33:58Z corci: Yippee, build fixed!
2018-01-24T15:33:59Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2926: FIXED in 1 hr 6 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2926/
2018-01-24T15:34:16Z nyef: I suppose the register contents "describe" a lisp object, either by being a tagged immediate or by being a tagged pointer.
2018-01-24T15:35:17Z nyef: Oh! And the other thing that can go in a descriptor-reg is an object header.  It's not a lisp value, but it's still tagged, so the GC considers it to be legit and will ignore it.
2018-01-24T15:36:00Z Baggers: nyef: I've yet to run into interior pointers yet, but this'll help when I do. the other info is already helping me undertsand !define-storage-classes (which is what kicked this off for me in the first place :) )
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2018-01-24T16:06:51Z corci: Yippee, build fixed!
2018-01-24T16:06:51Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2926: FIXED in 1 hr 39 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2926/
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2018-01-24T16:21:52Z Xof: damn it Google
2018-01-24T16:21:59Z Xof: or possibly SourceForge
2018-01-24T16:22:06Z Xof: why don't you like my new e-mail setup?
2018-01-24T16:22:23Z Xof: (and why are you silently discarding my mail?)
2018-01-24T16:22:58Z Xof: how can I announce freezes if my mail gets eaten?
2018-01-24T16:24:29Z Xof: dan_b always used to post stupid log messages.  Here's one:
2018-01-24T16:24:32Z Xof: SSL_accept() syscall failed: Success
2018-01-24T16:28:26Z Xof: does anyone have the keys to the sourceforge mailing lists any more?  nikodemus, maybe?
2018-01-24T16:29:54Z Xof: "Any SBCL admin can add people as mailing list admins -- I don't remember exactly how, though"
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2018-01-24T16:38:46Z Xof: can any of you assembled masses tell me whether you've received my sbcl-1.4.4 freeze announcement?
2018-01-24T16:38:58Z Xof: It's showing up on the sbcl-devel archives, but very definitely hasn't made it back to me.
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2018-01-24T16:40:44Z nyef: Xof: I see the freeze announcement dated as of about an hour ago.
2018-01-24T16:41:18Z nyef: (Given my local clock skew, an hour and a *half* ago, but apparently "1 hour ago" is close enough for Google work.)
2018-01-24T16:41:55Z nyef: ... I need to commit a NEWS update soon, don't I?
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2018-01-24T16:47:19Z Xof: nyef: could you send me what you received?  I'd like to look at headers
2018-01-24T16:48:13Z nyef: You have DKIM and DMARC failures, apparently.
2018-01-24T16:48:24Z Xof: yeah, but I suspect I had those before
2018-01-24T16:48:59Z Xof: the new bit might be that I am saving my message to Google's sent-mail, which might be tricking google into thinking that I've already received it
2018-01-24T16:49:35Z Xof: it definitely does duplicate detection of some kind
2018-01-24T16:49:35Z nyef: Are you still at cantab.net?
2018-01-24T16:49:53Z Xof: yes but I've changed my smtp arrangement
2018-01-24T16:50:40Z nyef: Sent.
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2018-01-24T16:51:01Z Xof: thanks
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2018-01-24T18:28:21Z pfdietz_: I received the freeze email.
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2018-01-24T20:28:54Z stassats: (macroexpand '(rotatef a b)) is not nice, get-setf-expansion for some reason binds *gensym-counter* to 1
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2018-01-24T22:17:38Z fe[nl]ix: Xof: https://github.com/wheybags/glibc_version_header
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2018-01-25T14:34:37Z stassats: pfdietz_: re /=, sorting the values in place on the stack and then looking for adjacent values is faster than using a hash-table
2018-01-25T14:34:47Z stassats: the cross-over is around 10 elements
2018-01-25T14:36:39Z stassats: assuming a full call to /=
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2018-01-25T15:34:51Z stylewarning: failed AVER loading CLPYTHON: http://codepad.org/jpsmRagc
2018-01-25T15:36:28Z stassats: .14?
2018-01-25T15:38:16Z stylewarning: I'll upgrade to the newest and see. I don't think it's ancient but who knows these days.
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2018-01-25T16:28:46Z pfdietz: Fastest algorithm for /= I found: compute s hash for each value and store into an array  of size power of 2 >= 2×length of args, using linear addressing
2018-01-25T16:29:45Z pfdietz: This was 6 faster than sorting on 1000 values.
2018-01-25T16:29:57Z pfdietz: 6×
2018-01-25T16:30:34Z pfdietz: Also works on complex numbers unlike sorting algorithm.
2018-01-25T16:30:51Z pfdietz: Sxhash
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2018-01-25T16:38:37Z stylewarning: looks fixed stassats on latest
2018-01-25T16:39:41Z muyinliu: pfdietz: Could you offer a demo?
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2018-01-25T17:41:31Z pfdietz: https://pastebin.com/ZVu2tQ27
2018-01-25T17:42:48Z stassats: want it to be faster? don't turn &rest into a list
2018-01-25T17:42:54Z stassats: use length and nth
2018-01-25T17:44:35Z pfdietz: It detects that and optimizes?   Cool.
2018-01-25T17:44:48Z stassats: the sorting /= i made sorts completely in place
2018-01-25T17:46:31Z stassats: what algorithm i would consider: no additional space (maybe a bit of stack space), faster than the naive version at around 10
2018-01-25T17:47:03Z stassats: otherwise, bring your own /= with whichever characteristics you need
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2018-01-25T17:49:00Z stassats: pfdietz_: why (make-array (list n))?
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2018-01-25T22:37:18Z stassats: Internal error #0 "unknown system lossage"
2018-01-25T22:37:22Z stassats: "this is fine"
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2018-01-26T00:18:59Z aeth: Is there any way to do something like a simd-pack, but with a buffer of those instead of an individual simd-pack? e.g. sort of like having an array of 4096 simd-packs, but all allocated as one chunk of memory
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2018-01-26T00:40:42Z nyef: ... how annoying. There doesn't appear to be any references to simd-pack in doc/.
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2018-01-26T01:49:41Z stassats: has anybody ever used simd-pack?
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2018-01-26T07:31:51Z Shinmera: I've experimented with it, but haven't deployed it in library code that is actually in use.
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2018-01-26T09:21:36Z Baggers: 2 misc questions: 1. are there any parts of the sbcl-internals document that are out of date or should be avoided? 2. under what conditions is the use of define-assembly-routine prefered over a vop?
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2018-01-26T13:08:45Z pkhuong: aeth: no. if you're low level enough to need simd-pack, you can grab stuff from a scalar-typed array
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2018-01-26T20:21:52Z corci: Yippee, build fixed!
2018-01-26T20:21:52Z corci: Project sbcl-master » fasteval,MAC_OS_mavericks_64bit build #2930: FIXED in 38 min: http://ci.cor-lab.de/job/sbcl-master/featureset=fasteval,label=MAC_OS_mavericks_64bit/2930/
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2018-01-27T19:08:06Z stassats: BIT-POSITION-OVERRUN failing on ppc, seems new
2018-01-27T19:08:09Z stassats: but why?
2018-01-27T19:09:01Z stassats: same thing on sparc
2018-01-27T19:09:29Z stassats: both are big-endian
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2018-01-29T01:21:31Z stylewarning: sb-mpfr is an ugly API
2018-01-29T01:22:25Z stylewarning: this diff is not pretty https://github.com/tarballs-are-good/lisp-random/commit/50d9c00138db8ac8fd1695dd8c2c506464c81d0e
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2018-01-29T22:46:23Z pfdietz: Does the sbcl sourceforge page grind bit coins In your browser?   It's chugging along at 80% could and rising for me.
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2018-01-29T22:46:44Z pfdietz: 80% cpu
2018-01-29T22:47:22Z leah2: i said that about sf.net in mid-2000, that they were searching for mersenne primes :)
2018-01-29T22:49:26Z Shinmera: pfdietz: The page has no JS that I can see.
2018-01-29T22:49:30Z pfdietz: I think the site locked up my machine when I left the browser up over the weekend.   Ad blocker installed; cpu load now minimal.
2018-01-29T22:50:12Z pfdietz: Not sbcl.org
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2018-01-29T22:50:55Z Shinmera: Oh, on sourceforge itself. Yeah ads from bad ad providers can do that.
2018-01-29T22:50:59Z pfdietz: sourceforge.net/projects/sbcl/
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2018-01-29T22:51:13Z Shinmera: Knowing SF they probably don't screen their ads very well
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2018-01-29T23:28:01Z nyef: ... INST checks to see if one of its parameters is typep (OR SYMBOL STRING CHARACTER), and does different things depending on if it is or not.  Critically, however, in both cases it passes it to OP-ENCODER-NAME, which then passes it to STRING= and either STRING-DOWNCASE or STRING.  The exception would be if NIL is defined as a (global or local) macro.
2018-01-29T23:28:06Z nyef: WTF?
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2018-01-30T00:50:30Z corci: Yippee, build fixed!
2018-01-30T00:50:30Z corci: Project sbcl-master » safepoints,ubuntu_trusty_32bit build #2933: FIXED in 21 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_32bit/2933/
2018-01-30T00:52:50Z nyef: ... clearly, safepoints are still not stable.
2018-01-30T00:58:29Z corci: Yippee, build fixed!
2018-01-30T00:58:30Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2933: FIXED in 29 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2933/
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2018-01-31T09:22:24Z scymtym: Xof: thanks for working on the release
2018-01-31T09:22:53Z scymtym: there seem to be problems with the manual's new stylesheet. is there anything i can do to help?
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2018-01-31T12:14:52Z corci: Yippee, build fixed!
2018-01-31T12:14:53Z corci: Project sbcl-master » safepoints,ubuntu_trusty_64bit build #2936: FIXED in 21 min: http://ci.cor-lab.de/job/sbcl-master/featureset=safepoints,label=ubuntu_trusty_64bit/2936/
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2018-01-31T13:30:07Z Xof: scymtym: oh, wait, did I do something wrong?
2018-01-31T13:30:12Z Xof: well, probably several somethings.
2018-01-31T13:30:21Z Xof: I can only do about one thing a month :(
2018-01-31T13:41:57Z scymtym: Xof: could well be my fault for, for example, unknowingly changing the required texinfo version
2018-01-31T13:42:57Z scymtym: my best bet for texinfo issues is the (in)ability to include multiple css files. maybe that wasn't possible in older versions
2018-01-31T13:44:24Z scymtym: then there is the unrelated issue of whether we want to continue to make the asdf manual available. http://www.sbcl.org/asdf/ is outdated and we should probably either update or delete it
2018-01-31T13:54:51Z Xof: we should probably delete the asdf manual
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2018-01-31T13:57:46Z scymtym: Xof: is there anything i can do to fix the texinfo problem?
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2018-01-31T14:08:28Z Xof: hm, maybe I can solve this with some Sufficiently Advanced Scripting
2018-01-31T14:10:50Z Xof: or maybe the answer is to follow up on fe[nl]ix's hint of a linker script to allow compiling works-on-old-libc with scary-new-build-environment
2018-01-31T14:11:32Z Xof: or on the third hand, maybe the answer is that right now, you can checkout sbcl-1.4.4 and sbcl-page, and rebuild and reupload the manual
2018-01-31T14:11:38Z Xof: argh late for next meeting
2018-01-31T14:24:52Z scymtym: Xof: i can try that
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2018-01-31T15:19:23Z scymtym: Xof: the output of my texinfo seemed equivalent content-wise (from diffing the HTML files) and the CSS includes worked correctly, so i went ahead and replaced the file (keeping a backup): http://sbcl.org/manual/ . does that seem ok?
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2018-01-31T16:54:55Z Xof: looks good to me.  Thank you!
2018-01-31T16:55:07Z Xof: I will think about how to automate that
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2018-01-31T17:02:09Z scymtym: stassats: assert (null (nth-value 4 (checked-compile …))) == (checked-compile … :allow-notes nil)
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2018-01-31T17:27:32Z stassats: scymtym: could :allow-notes 2 work?
2018-01-31T17:30:04Z scymtym: stassats: only :allow-notes CONDITION-TYPE currently
2018-01-31T17:33:33Z scymtym: i have been thinking about something like (checked-compile-and-assert () LAMBDA-EXPRESSION (assert-{warning,style-warning,notes} (conditions) BODY-INSPECTS-CONDITIONS)) and/or (c-c-a-a () L-E (assert-{warning,style-warning,notes} :type TYPE :min-count MIN :max-count MAX :report-contains "STRING" …))
2018-01-31T17:35:09Z scymtym: well, for CHECKED-COMPILE it could mean "allow up to two notes to be signaled, otherwise fail". is that what you had in mind?
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2018-01-31T22:50:17Z stassats: scymtym: i don't think anything other than an exact number of warnings should ever be tested for, but yes, something likethat
2018-01-31T22:53:25Z scymtym: stassats: i will give it a go over the weekend
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