JDK-8202640 : Small C1 cleanups for BarrierSetC1
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: compiler
  • Affected Version: 11
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2018-05-04
  • Updated: 2018-05-11
  • Resolved: 2018-05-05
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JDK 11
11 b13Fixed
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Description
After rebasing ZGC in BarrierSetC1, we noticed a few small cleanups that would be great.

* restore_live_registers_except_rax should be exposed so that barrier set backends may use it
* save_live_registers_no_oop_map has an unused argument that should be removed
* LIR_OpVisitState::visit should allow visiting LIR with a virtual call (for GC barrier LIR_Ops).
* LIR_List::append ought to be public so that barrier set backends can add barrier LIR_Ops.