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  1. JDK
  2. JDK-8193935

Illegal countedLoops transformation

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: P3 P3
    • 11
    • 9, 10, 11
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    • b14

        Adding -XX:-UseLoopPredicate when running specjvm2008/mpedaudio makes the benchmark fail with "Composite result: not valid". The bug is reproduced with the method "javazoom.jl.decoder.huffcodetab::huffman_decoder" (only inlining "javazoom.jl.decoder.BitReserve::hget1bit")

        >> SPECjvm2008/data$ bin/java -XX:+UnlockDiagnosticVMOptions -XX:-UseLoopPredicate -XX:CICompilerCount=1 -Xbatch -XX:LoopMaxUnroll=0 -XX:CompileCommand=quiet -XX:-CICompileOSR -XX:+PrintCompilation -XX:-UseFPUForSpilling -XX:+UseG1GC -Xmx2G -Xms2G -XX:-TieredCompilation -XX:CompilerDirectivesFile=mpegaudio.dir -Dspecjvm.home.dir=.../SPECjvm2008 -jar .../SPECjvm2008.jar -ikv -ict --benchmarkThreads 1 --warmuptime 30 --iterationTime 30 mpegaudio

              neliasso Nils Eliasson (Inactive)
              neliasso Nils Eliasson (Inactive)
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