JDK-8218767 : ZGC: Do not assume that r12 is a special register in C2
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: gc
  • Affected Version: 13
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2019-02-11
  • Updated: 2019-02-27
  • Resolved: 2019-02-20
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JDK 13
13 b09Fixed
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Description
The C2 load barrier code for ZGC assumes that r12 is not used as a general purpose register. However, JDK-8217909 might change that, so ZGC should not be making this assumption.