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  1. JDK
  2. JDK-8166140

C1: Possible integer overflow in LIRGenerator::generate_address on several platforms

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 9
    • Fix Version/s: 9
    • Component/s: hotspot
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    • Resolved In Build:
      b140

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        Description

        LIRGenerator::generate_address contains code to simplify constant index/displacement. Code like the following line uses int which may overflow:
        disp += index->as_constant_ptr()->as_jint() << shift;
        We should use 64 bit integer variables on 64 bit platforms.

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                Assignee:
                mdoerr Martin Doerr
                Reporter:
                mdoerr Martin Doerr
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