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  1. JDK
  2. JDK-8233743

AArch64: Make r27 conditionally allocatable

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    • b04
    • aarch64
    • linux

    Description

      We should do a follow-up patch of JDK-8217909 to make the AArch64 r27 register allocatable when compressed oops is turned off.

      And JDK-8231754 for AArch64 should be reverted if this is done.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8231754 [JVMCI] Make r27 unconditionally reserved in JVMCI

          • P3 - Major loss of function.
          • Resolved

          Enhancement - null JDK-8217909 Make unused r12 register (without compressed oops) available to regalloc in C2

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Enhancement - null JDK-8242449 AArch64: r27 can be allocated in CompressedOops mode

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
          links to

          Review Review openjdk/jdk11u-dev/136

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              pli Pengfei Li
              pli Pengfei Li
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                Created:
                Updated:
                Resolved: