[squeak-dev] compiler bug with 4.5?

Eliot Miranda eliot.miranda at gmail.com
Thu May 1 23:47:09 UTC 2014


Hi All,

    just found a worrying bug in 4.5. that may be a bytecode compiler bug
or a Monticello bug.  It's completely repeatable.

The bug is that after building the VMMaker image that compiles the VMMaker
package, Spur32BitCoMemoryManager>>#getScavengeThreshold (the 42st inst
var) is compiled with a header that says return the 7th inst var.

To repeat, check-out http://www.squeakvm.org/svn/squeak/branches/Cog/image,
run buildsqueak45image.sh, then start-up CogVMMaker.image.  Navigate to
Spur32BitCoMemoryManager>>#getScavengeThreshold
-- and explore the method (there's a menu pick in the browser).
best,
Eliot
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