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  1. JDK
  2. JDK-8224880

AArch64: java/javac error with AllocatePrefetchDistance

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    • Subcomponent:
    • Resolved In Build:
      b23
    • CPU:
      aarch64

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        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.

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                Assignee:
                aph Andrew Haley
                Reporter:
                aph Andrew Haley
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