JDK-8307815 : C2 Phase structure cleanup
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 21
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2023-05-10
  • Updated: 2023-05-11
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Other
tbdUnresolved
Related Reports
Relates :  
JDK-8302670 - use-after-free related to PhaseIterGVN interaction with Unique_Node_List and Node_Stack
Description
JDK-8302670 is already a step in the right direction.

But the Phase structure in phaseX.hpp is quite messy.
Here a list of some "Future Work" we could address:
https://github.com/openjdk/jdk/pull/13833