[squeak-dev] New Cog VMs available

Tobias Pape Das.Linux at gmx.de
Thu Apr 9 22:21:07 UTC 2015


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

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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