[squeak-dev] New Cog VMs available

Tobias Pape Das.Linux at gmx.de
Fri Apr 10 15:21:04 UTC 2015


Hi Eliot,

On 10.04.2015, at 15:46, Eliot Miranda <eliot.miranda at gmail.com> wrote:

> 
> 
> 
> On Apr 9, 2015, at 3:21 PM, Tobias Pape <Das.Linux at gmx.de> wrote:
> 
>> 
>> On 10.04.2015, at 00:17, Tobias Pape <Das.Linux at gmx.de> wrote:
>> 
>>> Updated on the CI :)
>> 
>> aaand reverted. We got a crash: 
>>   http://build.squeak.org/job/SqueakTrunk/1245/console
> 


> Yes.  I get a crash in updating with the v3 VM.  So far no problems with the Spur VM.  But Tibias, unless the bleeding edge gets tested how will I spit these regressions?  I need to know.  So can we not have two builds, one with the last known good and one with the bleeding edge?

Sure, this is possible.
probably something like a matrix build.
Frank is more savvy with the infrastructure, tho.

best
	-Tobias


>  Otherwise I'm flying blind.
> 
>> 
>> Best
>>   -Tobias
>> 
>>> Best
>>>   -Tobias
>>> On 09.04.2015, at 23:28, Eliot Miranda <eliot.miranda at gmail.com> wrote:
>>> 
>>>> ... at http://www.mirandabanda.org/files/Cog/VM/VM.r3308/.
>>>> 
>>>> CogVM binaries as per VMMaker.oscog-eem.1178/r3308
>>>> 
>>>> Plugins:
>>>> Integrate Nicolas' fixes that use positiveMachineIntegerFor: for pointers.
>>>> 
>>>> Newspeak:
>>>> Print a warning in the method shared under multiple selectors scenario.
>>>> 
>>>> Implement outer sends as clean sends just like implicit receiver sends. Add
>>>> ObjectRepresentation>>illegalClassTag and use it for initializing and unlinking
>>>> implicit and outer sends.
>>>> 
>>>> Newspeak & Sista:
>>>> The multiple bytecode set block initial nil counters need
>>>> to be specific to the bytecode set in effect.
>>>> 
>>>> Spur:
>>>> Implement Clement's much better solution for the stale supersend problem.
>>>> Place code at the send site for super sends to follow stale forwarded
>>>> receivers.  This parallels the interpreter implementation.
>>>> 
>>>> Beef up the post-become scan of send sites to
>>>> unlink all send sites that link to an invalid class tag.
>>>> 
>>>> Cogit:
>>>> Optimize StackToRegisterMappingCogit>>genReturnReceiver
>>>> to not load ReceiverResultReg if it already contains self.
>>>> 
>>>> Revise method map generation to provide multiple send type annotations.  Add
>>>> an IsAnnotationExtension annotation type that implicitly has a zero displacement
>>>> and uses its displacement bits to extend the preceeding IsSendCall annotation.
>>>> This allows us to eliminate all the exotic entry-points and keep only the
>>>> checked and unchecked entries.
>>>> 
>>>> Change IA32's genPushRegisterArgsForNumArgs: to not smash TempReg now that it
>>>> is used in directed super send trampolines.
>>>> 
>>>> Use PushCq to pass small integer constants in the trampolines instead of
>>>> smashing TempReg, which is now used to hold the directed supersend argument.
>>>> Add support for PushCq.  Could use PushCw but on x86 PushCq is a lot shorter.
>>>> 
>>>> Mac builds: Use UTC as the timezone for the build timestamp.  Using the local
>>>> timezone doesn't work :(.




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