YJIT: Optimize local variables when EP == BP (take 2) #10607
Merged
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This reverts the revert of #10487.
Alan discovered that we don't mark ISEQs in
no_ep_escape_iseqs
, which can lead to missing invalidation and code generation with a wrong assumption afterGC.compact
. This PR fixes the problem by updating ISEQ references onrb_yjit_iseq_update_references
. It also frees ISEQ keys onrb_yjit_iseq_free
.