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2014-12-24T10:17:39Z stassats: gah, this compiler macro used before define is fine and all, but it's printed at some random times
2014-12-24T10:22:24Z stassats: and "Proclaiming X to be inline" X is printed without the package prefix
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2014-12-24T12:09:46Z stassats`: top-level compiler macros are expanded three times
2014-12-24T12:10:00Z stassats`: giving three warnings if that's what the macro does
2014-12-24T12:20:47Z stassats`: that is, (define-compiler-macro foo (&whole form) (warn) form)
2014-12-24T12:21:03Z stassats`: i can reduce that to just 2
2014-12-24T12:24:12Z stassats`: actually, make that 1
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2014-12-24T13:32:25Z stassats`: there's no way to get rid of all cases of multiple macroexpansion
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2014-12-24T14:29:21Z stassats`: what if i cache macroexpansions
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2014-12-24T14:37:23Z Krystof: snuglas has a patch for that
2014-12-24T14:37:31Z Krystof: or rather an interpreter :-)
2014-12-24T14:37:49Z stassats`: for fopcompile?
2014-12-24T14:38:43Z stassats`: i can easily get rid of double top-level expansion of cm: just don't expand one recursion level in fopcompile and fopcompilable-p
2014-12-24T14:39:11Z stassats`: but then things like (x (macro)) are expanded twice, now, that can be done by saving macroexpansions from fopcompilable-p and using it for fopcompile
2014-12-24T14:39:43Z stassats`: that leaves with (x (macro) non-fopcompilable), it'll be expanded by ir1-convert-functoid
2014-12-24T14:39:46Z stassats`: the second time
2014-12-24T14:40:48Z stassats`: i guess i'll commit the top-level cm fix, because it gets rid of triple expansion, double expansion sounds a bit more tolerable
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2014-12-24T16:42:15Z Fare: ahem, asdf 3.1.4, released in october, has a few minor bug fixes that would be nice to include in some future sbcl release.
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2014-12-24T17:57:18Z stassats`: MOV RAX, [R12+96]     MOV [RBP-8], RAX     MOV RAX, [R12+96]    MOV RAX, [R12+72]
2014-12-24T17:57:28Z stassats`: looks awfully inefficient
2014-12-24T17:57:57Z nyef: Yeah, but it's probably spread over a couple of VOPs...
2014-12-24T17:58:30Z stassats`: why would it load bsp into RAX before overwriting it immediately?
2014-12-24T17:58:59Z stassats`: incidentally, without debug 3, it saves it into [RBP-32]
2014-12-24T18:00:20Z stassats`: tried again, and now it stopped doing that
2014-12-24T18:00:48Z stassats`: but i have the saveless sequence in my killring, so it's not a mirage
2014-12-24T18:05:52Z stassats`: ok, that was weird and i can't explain it, but i don't think it caused this problem
2014-12-24T18:23:49Z stassats`: i think i see what's going on
2014-12-24T18:24:48Z stassats`: save-bsp run-progv unwind-protect-clean-up-form bind-sentinel unbind-to-saved-bsp unbind-sentinel
2014-12-24T18:25:10Z stassats`: unbind-to-saved-bsp unbinds the new sentinel, and then unbind-sentinel does it again
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2014-12-24T18:26:22Z stassats`: don't see a way past that, i think i'll just try to get rid of sentinels altogether
2014-12-24T18:27:31Z stassats`: by saving BSP on the stack and then just accessing that location from the debug function
2014-12-24T18:30:21Z nyef: I think that the reason for the sentinel is that you can search for the sentinel, but it's harder to check to see if a given stack frame has a saved BSP.
2014-12-24T18:31:32Z stassats`: if you have the debug function, you can find the bsp
2014-12-24T18:31:46Z stassats`: if you don't have the debug function, what are you doing unwinding things?
2014-12-24T18:32:02Z nyef: Sounds about right to me.
2014-12-24T18:33:00Z stassats`: and saving things on the stack is much more compact and doesn't need to unwind anything, and doesn't prevent TCO, we may enabled it by default
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2014-12-24T20:33:36Z stassats`: and my changes broke some tests measuring code size
2014-12-24T21:14:24Z stassats`: need to figure out how to restart XEPs
2014-12-24T21:15:15Z nyef: Tail-call 'em.
2014-12-24T21:16:17Z stassats`: that's not the problem, the problem is when do we want to restart xeps, and when the internal frame
2014-12-24T21:18:52Z stassats`: though, it doesn't seem to restart internal functions at all
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2014-12-24T21:25:08Z stassats`: ok, i see the problem with XEPs, it actually does call xeps, but, it doesn't use original arguments, and the arglist processing is different
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2014-12-24T21:26:24Z stassats`: it needs to save both the arguments and rcx
2014-12-24T21:26:32Z stassats`: but that's for some other time
2014-12-24T21:27:39Z stassats`: getting lp#1405456 fixed was the main motivation
2014-12-24T21:27:50Z stassats`: and more compact code is a bonus
2014-12-24T21:28:25Z stassats`: I can't even properly reconstruct all the arguments on arglists mismatch yet, that's been in my queue for too long
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2014-12-24T21:31:02Z stassats`: and implementing this for ARM would be nice too
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