[squeak-dev] new Cog VMs available
Eliot Miranda
eliot.miranda at gmail.com
Thu Aug 22 18:05:01 UTC 2013
http://www.mirandabanda.org/files/Cog/VM/VM.r2776/
CogVM binaries as per VMMaker.oscog-eem.333/r2776
* Speed-up Newspeak significantly (e.g. -28% in one compile-intensive
benchmark)
by maintaining unpaired methods (compilations of anonymous accessors) on a
linked list instead of searching the entire method zone.
* Make primitiveObjectAtPut fail if changing the header word and the
new header has a different literal count. Avoids crashing the VM
when inadvertently changing the header, as a Newspeak bootstrap
did recently.
* Implement frameless inst var store from arguments, so e.g.
Point>>setX:Y: is frameless.
* Add Cogit support for clean blocks by scanning literals looking for
BlockClosures on the current method.
--
best,
Eliot
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