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  1. JDK
  2. JDK-8217909

Make unused r12 register (without compressed oops) available to regalloc in C2

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    • Subcomponent:
    • Resolved In Build:
      b09
    • CPU:
      x86_64
    • OS:
      generic

      Description

      When running with compressed oops, the r12 register holds the heapbase, and thus is not available to register allocation in C2. However, when *not* running with compressed oops, it is still not available and remains unused. It should be made available to register allocation in this case.

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              • Assignee:
                rkennke Roman Kennke
                Reporter:
                rkennke Roman Kennke
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                • Created:
                  Updated:
                  Resolved: