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  1. Qt
  2. QTBUG-56255

Malformed expression crashes JS optimizer

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      Description

      Run qtqtuickcompiler on the attached file:

      ./qtquickcompiler -s /tmp/000000.qml /dev/null
      

      It will crash:

      1 (anonymous namespace)::optimizeSSA     qv4ssa.cpp          4030 0x59e49c 
      2 QV4::IR::Optimizer::run                qv4ssa.cpp          5410 0x5e34a6 
      3 QmlC::InstructionSelection::run        isel.cpp            190  0x40fafb 
      4 QV4::EvalInstructionSelection::compile qv4isel_p.cpp       82   0x4e2350 
      5 compileQmlFile                         qtquickcompiler.cpp 119  0x43a8f8 
      6 main                                   main.cpp            462  0x40c04c 
      

      qtquickcompiler might not be able to generate valid C++ from this file, but it should never crash.

        Attachments

        1. 000000.qml
          0.3 kB
        2. backtrace.txt
          16 kB

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              • Assignee:
                shausman Simon Hausmann
                Reporter:
                rlohning Robert Löhning
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                Dates

                • Created:
                  Updated:
                  Resolved:

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