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  1. JDK
  2. JDK-8255210

[Vector API] jdk/incubator/vector/Int256VectorTests.java crashes on AVX512 machines

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    • Subcomponent:
    • Resolved In Build:
      b22

      Description

      # Reproduce
      ```
      Run jdk/incubator/vector/Int256VectorTests.java on AVX512 machines
      ```

      # Symptom
      ```
      #
      # A fatal error has been detected by the Java Runtime Environment:
      #
      # Internal Error (/home/jvm/jiefu/open/jdk/src/hotspot/cpu/x86/assembler_x86.cpp:8714), pid=83279, tid=83294
      # assert(((dst_enc < 16 && nds_enc < 16 && src_enc < 16) || (!attributes->is_legacy_mode()))) failed: XMM register should be 0-15

      # Problematic frame:
      # V [libjvm.so+0x5c52b3] Assembler::vex_prefix_and_encode(int, int, int, Assembler::VexSimdPrefix, Assembler::VexOpcode, InstructionAttr*) [clone .constprop.98]+0x213
      ```

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              Assignee:
              jiefu Jie Fu
              Reporter:
              jiefu Jie Fu
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                Updated:
                Resolved: