Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8224880

AArch64: java/javac error with AllocatePrefetchDistance

    Details

    • Resolved In Build:
      b23
    • CPU:
      aarch64

      Backports

        Description

        The default AllocatePrefetchDistance is 3 * the dcache line size.

        http://hg.openjdk.java.net/jdk/jdk11/file/tip/src/hotspot/cpu/aarch64/vm_version_aarch64.cpp#l132

        If the cache line size is 256, we trip over an error at

        http://hg.openjdk.java.net/jdk/jdk11/file/tip/src/hotspot/share/runtime/flags/jvmFlagConstraintsCompiler.cpp#l93

        This is because the prefetch distance is limited to 512.

          Attachments

            Issue Links

              Activity

                People

                • Assignee:
                  aph Andrew Haley
                  Reporter:
                  aph Andrew Haley
                • Votes:
                  0 Vote for this issue
                  Watchers:
                  2 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved: