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Feature #16282
openAdd "call data" wrapper IMEMO object so inline cache can be updated
Status:
Open
Priority:
Normal
Assignee:
-
Target version:
-
Description
Hi,
Currently the compactor will invalidate all inline caches. I would like to update references in inline caches so we don't have to invalidate. Most inline caches are reachable from instruction sequences, but one cache is not:
https://github.com/ruby/ruby/blob/6147fa82a923e7318f493857023006801ed25eb5/internal.h#L2395
This static variable can't be reached from the GC. I'd like to introduce a new IMEMO object that wraps this cache, then the GC can reach the cache and update the value.
I've attached a patch that implements the new IMEMO object, and also removes the restriction on GCC so that all compilers get the cache hit.
Does this seem OK shyouhei, ko1?
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