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  1. JDK
  2. JDK-8202425

[s390] C2: Wrong unsigned comparison with 0

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: P2
    • Resolution: Fixed
    • Affects Version/s: 11
    • Fix Version/s: 11
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b12
    • CPU:
      s390x

      Description

      s390.ad contains a wrong node: compU_reg_imm0. It's used for unsigned comparison with 0, but it's implemented as signed comparison. This leads to generation of incorrect code which was observed after JDK-8200303.

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            Assignee:
            mdoerr Martin Doerr
            Reporter:
            mdoerr Martin Doerr
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              Created:
              Updated:
              Resolved: