2.12.0 - java.lang.ArrayIndexOutOfBoundsException: -1 when emitting code

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Marek Żebrowski

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Nov 6, 2016, 8:15:10 AM11/6/16
to scala-internals
I think I've hit a bug in 2.12.0 compiler:
java.lang.ArrayIndexOutOfBoundsException: -1
at scala.tools.nsc.backend.jvm.analysis.BackendUtils.enqInsnIndex$1(BackendUtils.scala:430)
at scala.tools.nsc.backend.jvm.analysis.BackendUtils.enqInsn$1(BackendUtils.scala:426)
at scala.tools.nsc.backend.jvm.analysis.BackendUtils.computeMaxLocalsMaxStack(BackendUtils.scala:477)
at scala.tools.nsc.backend.jvm.analysis.BackendUtils$AsmAnalyzer.<init>(BackendUtils.scala:35)
at scala.tools.nsc.backend.jvm.opt.LocalOpt.removeUnreachableCodeImpl(LocalOpt.scala:488)
at scala.tools.nsc.backend.jvm.opt.LocalOpt.removalRound$2(LocalOpt.scala:275)
at scala.tools.nsc.backend.jvm.opt.LocalOpt.methodOptimizations(LocalOpt.scala:354)
at scala.tools.nsc.backend.jvm.opt.LocalOpt.$anonfun$methodOptimizations$1(LocalOpt.scala:195)
at scala.tools.nsc.backend.jvm.opt.LocalOpt.$anonfun$methodOptimizations$1$adapted(LocalOpt.scala:194)
at scala.collection.TraversableOnce.$anonfun$foldLeft$1(TraversableOnce.scala:157)
at scala.collection.TraversableOnce.$anonfun$foldLeft$1$adapted(TraversableOnce.scala:157)
at scala.collection.AbstractIterator.foreach(Iterator.scala:932)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at scala.collection.TraversableOnce.foldLeft(TraversableOnce.scala:157)
at scala.collection.TraversableOnce.foldLeft$(TraversableOnce.scala:155)
at scala.collection.AbstractTraversable.foldLeft(Traversable.scala:104)
at scala.tools.nsc.backend.jvm.opt.LocalOpt.methodOptimizations(LocalOpt.scala:194)
at scala.tools.nsc.backend.jvm.GenBCode$BCodePhase$Worker2.$anonfun$localOptimizations$1(GenBCode.scala:248)
at scala.tools.nsc.backend.jvm.GenBCode$BCodePhase$Worker2.localOptimizations(GenBCode.scala:248)
at scala.tools.nsc.backend.jvm.GenBCode$BCodePhase$Worker2.run(GenBCode.scala:267)
at scala.tools.nsc.backend.jvm.GenBCode$BCodePhase.buildAndSendToDisk(GenBCode.scala:384)
at scala.tools.nsc.backend.jvm.GenBCode$BCodePhase.run(GenBCode.scala:350)
at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1404)
at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1389)
at scala.tools.nsc.Global$Run.compileSources(Global.scala:1384)
at scala.tools.nsc.Global$Run.compile(Global.scala:1478)
at xsbt.CachedCompiler0.run(CompilerInterface.scala:116)
at xsbt.CachedCompiler0.run(CompilerInterface.scala:95)
at xsbt.CompilerInterface.run(CompilerInterface.scala:26)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sbt.compiler.AnalyzingCompiler.call(AnalyzingCompiler.scala:107)
at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:53)
at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:47)
at sbt.compiler.MixedAnalyzingCompiler$$anonfun$compileScala$1$1.apply$mcV$sp(MixedAnalyzingCompiler.scala:50)
at sbt.compiler.MixedAnalyzingCompiler$$anonfun$compileScala$1$1.apply(MixedAnalyzingCompiler.scala:50)
at sbt.compiler.MixedAnalyzingCompiler$$anonfun$compileScala$1$1.apply(MixedAnalyzingCompiler.scala:50)
at sbt.compiler.MixedAnalyzingCompiler.timed(MixedAnalyzingCompiler.scala:74)
at sbt.compiler.MixedAnalyzingCompiler.compileScala$1(MixedAnalyzingCompiler.scala:49)
at sbt.compiler.MixedAnalyzingCompiler.compile(MixedAnalyzingCompiler.scala:64)
at sbt.compiler.IC$$anonfun$compileInternal$1.apply(IncrementalCompiler.scala:160)
at sbt.compiler.IC$$anonfun$compileInternal$1.apply(IncrementalCompiler.scala:160)
at sbt.inc.IncrementalCompile$$anonfun$doCompile$1.apply(Compile.scala:66)
at sbt.inc.IncrementalCompile$$anonfun$doCompile$1.apply(Compile.scala:64)
at sbt.inc.IncrementalCommon.cycle(IncrementalCommon.scala:32)
at sbt.inc.Incremental$$anonfun$1.apply(Incremental.scala:72)
at sbt.inc.Incremental$$anonfun$1.apply(Incremental.scala:71)
at sbt.inc.Incremental$.manageClassfiles(Incremental.scala:99)
at sbt.inc.Incremental$.compile(Incremental.scala:71)
at sbt.inc.IncrementalCompile$.apply(Compile.scala:54)
at sbt.compiler.IC$.compileInternal(IncrementalCompiler.scala:160)
at sbt.compiler.IC$.incrementalCompile(IncrementalCompiler.scala:138)
at sbt.Compiler$.compile(Compiler.scala:155)
at sbt.Compiler$.compile(Compiler.scala:141)
at sbt.Defaults$.sbt$Defaults$$compileIncrementalTaskImpl(Defaults.scala:879)
at sbt.Defaults$$anonfun$compileIncrementalTask$1.apply(Defaults.scala:870)
at sbt.Defaults$$anonfun$compileIncrementalTask$1.apply(Defaults.scala:868)
at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:40)
at sbt.std.Transform$$anon$4.work(System.scala:63)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228)
at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:228)
at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:17)
at sbt.Execute.work(Execute.scala:237)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228)
at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:228)
at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:159)
at sbt.CompletionService$$anon$2.call(CompletionService.scala:28)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
[error] Error while emitting net/liftweb/actor/SpecializedLiftActor
[error] -1
[error] one error found
I have a full sourcecode https://github.com/sgrouples/framework/tree/scala-2.12.0-wip - which is attempt to upgrade Lift framework version 2.6 to scala 2.12.0
Unfortunately I don't know how to minimize that to open better test case.
Stacktrace leads to

        if (insnIndex < size && stackHeights(insnIndex) != -1) {

So insnIndex is equal -1 obviously.

Should I try to open Bug report with that finding ? 




Lukas Rytz

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Nov 6, 2016, 8:24:32 AM11/6/16
to scala-i...@googlegroups.com
Hi Marek
Yes, please file a bug, even if it's not minimized. I'll take a look on Monday.
Thank you!
Lukas



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Marek Żebrowski

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Nov 6, 2016, 8:43:52 AM11/6/16
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