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Chisel causing strange internal Scala compiler error #567

Closed zhemao closed 8 years ago

zhemao commented 8 years ago

I tried pulling the latest master and now I'm getting a weird compiler error. Anybody know what's going on

java.lang.AssertionError: assertion failed: 
  class Reg
     while compiling: /scratch/zhemao/rocket-chip/chisel/src/main/scala/Backend.scala
        during phase: erasure
     library version: version 2.11.6
    compiler version: version 2.11.6
  reconstructed args: -bootclasspath /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/resources.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jsse.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jce.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/charsets.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rhino.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jfr.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/classes:/home/eecs/zhemao/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.11.6.jar -deprecation -feature -classpath /scratch/zhemao/rocket-chip/chisel/target/scala-2.11/classes:/home/eecs/zhemao/.ivy2/cache/org.scala-lang/scala-reflect/jars/scala-reflect-2.11.6.jar -language:reflectiveCalls -language:implicitConversions -language:existentials -unchecked

  last tree to typer: TypeTree(trait SeqLike)
       tree position: line 200 of /scratch/zhemao/rocket-chip/chisel/src/main/scala/Backend.scala
            tree tpe: collection.SeqLike
              symbol: abstract trait SeqLike in package collection
   symbol definition: abstract trait SeqLike[+A, +Repr] extends Any with IterableLike[A,Repr] with GenSeqLike[A,Repr] with Parallelizable[A,scala.collection.parallel.ParSeq[A]] (a ClassSymbol)
      symbol package: scala.collection
       symbol owners: trait SeqLike
           call site: method apply in package Chisel

== Source file context for tree position ==

   197         // ensure this component has a name
   198       val children = childrenOfParent.getOrElse(comp, Seq.empty)
   199       assert(children.filter(_.name.isEmpty).isEmpty, ChiselError.error("Internal Error: Unnamed Children"))
   200         // since sortedComps, all children should have names due to check above
   201       
   202       // ensure all nodes in the design has SOME name
   203       comp dfs { 
    at scala.tools.nsc.transform.AddInterfaces.transformMixinInfo(AddInterfaces.scala:217)
    at scala.tools.nsc.transform.Erasure.transformInfo(Erasure.scala:375)
    at scala.tools.nsc.transform.InfoTransform$Phase$$anon$1.transform(InfoTransform.scala:38)
    at scala.reflect.internal.Symbols$Symbol.rawInfo(Symbols.scala:1578)
    at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1498)
    at scala.reflect.internal.Kinds$$anonfun$checkKindBounds0$2.apply(Kinds.scala:215)
    at scala.reflect.internal.Kinds$$anonfun$checkKindBounds0$2.apply(Kinds.scala:211)
    at scala.reflect.internal.util.Collections$class.flatMap2(Collections.scala:130)
    at scala.reflect.internal.SymbolTable.flatMap2(SymbolTable.scala:16)
    at scala.reflect.internal.Kinds$class.checkKindBounds0(Kinds.scala:211)
    at scala.reflect.internal.SymbolTable.checkKindBounds0(SymbolTable.scala:16)
    at scala.tools.nsc.typechecker.Infer$Inferencer.checkKindBounds(Infer.scala:902)
    at scala.tools.nsc.typechecker.Infer$Inferencer.check$1(Infer.scala:893)
    at scala.tools.nsc.typechecker.Infer$Inferencer.checkBounds(Infer.scala:898)
[error] (chisel/compile:compileIncremental) java.lang.AssertionError: assertion failed: 
[error]   class Reg
[error]      while compiling: /scratch/zhemao/rocket-chip/chisel/src/main/scala/Backend.scala
[error]         during phase: erasure
[error]      library version: version 2.11.6
[error]     compiler version: version 2.11.6
[error]   reconstructed args: -bootclasspath /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/resources.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jsse.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jce.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/charsets.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rhino.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jfr.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/classes:/home/eecs/zhemao/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.11.6.jar -deprecation -feature -classpath /scratch/zhemao/rocket-chip/chisel/target/scala-2.11/classes:/home/eecs/zhemao/.ivy2/cache/org.scala-lang/scala-reflect/jars/scala-reflect-2.11.6.jar -language:reflectiveCalls -language:implicitConversions -language:existentials -unchecked
[error] 
[error]   last tree to typer: TypeTree(trait SeqLike)
[error]        tree position: line 200 of /scratch/zhemao/rocket-chip/chisel/src/main/scala/Backend.scala
[error]             tree tpe: collection.SeqLike
[error]               symbol: abstract trait SeqLike in package collection
[error]    symbol definition: abstract trait SeqLike[+A, +Repr] extends Any with IterableLike[A,Repr] with GenSeqLike[A,Repr] with Parallelizable[A,scala.collection.parallel.ParSeq[A]] (a ClassSymbol)
[error]       symbol package: scala.collection
[error]        symbol owners: trait SeqLike
[error]            call site: method apply in package Chisel
[error] 
[error] == Source file context for tree position ==
[error] 
[error]    197         // ensure this component has a name
[error]    198       val children = childrenOfParent.getOrElse(comp, Seq.empty)
[error]    199       assert(children.filter(_.name.isEmpty).isEmpty, ChiselError.error("Internal Error: Unnamed Children"))
[error]    200         // since sortedComps, all children should have names due to check above
[error]    201       
[error]    202       // ensure all nodes in the design has SOME name
[error]    203       comp dfs { 
[error] Total time: 25 s, completed Oct 21, 2015 6:38:16 PM
donggyukim commented 8 years ago

I don't know why this happens, but run make clean in the chisel directory, and run your stuff again.

colinschmidt commented 8 years ago

Palmer says bisect it and post the commit. On Oct 21, 2015 6:57 PM, "Howard Mao" notifications@github.com wrote:

I tried pulling the latest master and now I'm getting a weird compiler error. Anybody know what's going on

java.lang.AssertionError: assertion failed: class Reg while compiling: /scratch/zhemao/rocket-chip/chisel/src/main/scala/Backend.scala during phase: erasure library version: version 2.11.6 compiler version: version 2.11.6 reconstructed args: -bootclasspath /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/resources.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jsse.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jce.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/charsets.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rhino.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jfr.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/classes:/home/eecs/zhemao/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.11.6.jar -deprecation -feature -classpath /scratch/zhemao/rocket-chip/chisel/target/scala-2.11/classes:/home/eecs/zhemao/.ivy2/cache/org.scala-lang/scala-reflect/jars/scala-reflect-2.11.6.jar -language:reflectiveCalls -language:implicitConversions -language:existentials -unchecked

last tree to typer: TypeTree(trait SeqLike) tree position: line 200 of /scratch/zhemao/rocket-chip/chisel/src/main/scala/Backend.scala tree tpe: collection.SeqLike symbol: abstract trait SeqLike in package collection symbol definition: abstract trait SeqLike[+A, +Repr] extends Any with IterableLike[A,Repr] with GenSeqLike[A,Repr] with Parallelizable[A,scala.collection.parallel.ParSeq[A]](a ClassSymbol) symbol package: scala.collection symbol owners: trait SeqLike call site: method apply in package Chisel

== Source file context for tree position ==

197 // ensure this component has a name 198 val children = childrenOfParent.getOrElse(comp, Seq.empty) 199 assert(children.filter(.name.isEmpty).isEmpty, ChiselError.error("Internal Error: Unnamed Children")) 200 // since sortedComps, all children should have names due to check above 201 202 // ensure all nodes in the design has SOME name 203 comp dfs { at scala.tools.nsc.transform.AddInterfaces.transformMixinInfo(AddInterfaces.scala:217) at scala.tools.nsc.transform.Erasure.transformInfo(Erasure.scala:375) at scala.tools.nsc.transform.InfoTransform$Phase$$anon$1.transform(InfoTransform.scala:38) at scala.reflect.internal.Symbols$Symbol.rawInfo(Symbols.scala:1578) at scala.reflect.internal.Symbols$Symbol.info(Symbols.scala:1498) at scala.reflect.internal.Kinds$$anonfun$checkKindBounds0$2.apply(Kinds.scala:215) at scala.reflect.internal.Kinds$$anonfun$checkKindBounds0$2.apply(Kinds.scala:211) at scala.reflect.internal.util.Collections$class.flatMap2(Collections.scala:130) at scala.reflect.internal.SymbolTable.flatMap2(SymbolTable.scala:16) at scala.reflect.internal.Kinds$class.checkKindBounds0(Kinds.scala:211) at scala.reflect.internal.SymbolTable.checkKindBounds0(SymbolTable.scala:16) at scala.tools.nsc.typechecker.Infer$Inferencer.checkKindBounds(Infer.scala:902) at scala.tools.nsc.typechecker.Infer$Inferencer.check$1(Infer.scala:893) at scala.tools.nsc.typechecker.Infer$Inferencer.checkBounds(Infer.scala:898) error java.lang.AssertionError: assertion failed: [error] class Reg [error] while compiling: /scratch/zhemao/rocket-chip/chisel/src/main/scala/Backend.scala [error] during phase: erasure [error] library version: version 2.11.6 [error] compiler version: version 2.11.6 [error] reconstructed args: -bootclasspath /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/resources.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jsse.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jce.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/charsets.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rhino.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jfr.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/classes:/home/eecs/zhemao/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.11.6.jar -deprecation -feature -classpath /scratch/zhemao/rocket-chip/chisel/target/scala-2.11/classes:/home/eecs/zhemao/.ivy2/cache/org.scala-lang/scala-reflect/jars/scala-reflect-2.11.6.jar -language:reflectiveCalls -language:implicitConversions -language:existentials -unchecked [error] [error] last tree to typer: TypeTree(trait SeqLike) [error] tree position: line 200 of /scratch/zhemao/rocket-chip/chisel/src/main/scala/Backend.scala [error] tree tpe: collection.SeqLike [error] symbol: abstract trait SeqLike in package collection [error] symbol definition: abstract trait SeqLike[+A, +Repr] extends Any with IterableLike[A,Repr] with GenSeqLike[A,Repr] with Parallelizable[A,scala.collection.parallel.ParSeq[A]](a ClassSymbol) [error] symbol package: scala.collection [error] symbol owners: trait SeqLike [error] call site: method apply in package Chisel [error] [error] == Source file context for tree position == [error] [error] 197 // ensure this component has a name [error] 198 val children = childrenOfParent.getOrElse(comp, Seq.empty) [error] 199 assert(children.filter(.name.isEmpty).isEmpty, ChiselError.error("Internal Error: Unnamed Children")) [error] 200 // since sortedComps, all children should have names due to check above [error] 201 [error] 202 // ensure all nodes in the design has SOME name [error] 203 comp dfs { [error] Total time: 25 s, completed Oct 21, 2015 6:38:16 PM

— Reply to this email directly or view it on GitHub https://github.com/ucb-bar/chisel/issues/567.

zhemao commented 8 years ago

Turns out this is because some intermediate build output was screwing up sbt. Deleting all my target directories and retrying solved the issue.