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  1. JDK
  2. JDK-8219006

AArch64: Register corruption in slow subtype check

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    • Subcomponent:
    • Resolved In Build:
      b09
    • CPU:
      aarch64
    • OS:
      generic

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        Description

        From: martin.doerr@sap.com

        we had run -Xcomp tests on aarch64 and got SIGSEGV in StubRoutines::generic_arraycopy (debug build).

        generate_generic_copy:
        rscratch2_dst_klass = rscratch2 = r9

        It uses
        MacroAssembler::check_klass_subtype_slow_path
        which overwrites rscratch2 in debug build.

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                • Assignee:
                  aph Andrew Haley
                  Reporter:
                  aph Andrew Haley
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                  • Created:
                    Updated:
                    Resolved: