Exception during IR lowering for abstract class with more than one type parameter

[Whathecode]

Describe the bug
Compilation error on abstract serializable class with more than one type parameter.

I get the following error during compilation:

org.jetbrains.kotlin.backend.common.BackendException: Backend Internal error: Exception during IR lowering
File being compiled: C:/src/carp.core-kotlin/carp.common/src/commonMain/kotlin/dk/cachet/carp/common/application/Test.kt
The root cause java.lang.RuntimeException was thrown at: org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.generate(FunctionCodegen.kt:50)
	at org.jetbrains.kotlin.backend.common.CodegenUtil.reportBackendException(CodegenUtil.kt:239)
	at org.jetbrains.kotlin.backend.common.CodegenUtil.reportBackendException$default(CodegenUtil.kt:235)
	at org.jetbrains.kotlin.backend.common.phaser.PerformByIrFilePhase.invokeSequential(performByIrFile.kt:68)
	at org.jetbrains.kotlin.backend.common.phaser.PerformByIrFilePhase.invoke(performByIrFile.kt:55)
	at org.jetbrains.kotlin.backend.common.phaser.PerformByIrFilePhase.invoke(performByIrFile.kt:41)
	at org.jetbrains.kotlin.backend.common.phaser.NamedCompilerPhase.invoke(CompilerPhase.kt:96)
	at org.jetbrains.kotlin.backend.common.phaser.CompositePhase.invoke(PhaseBuilders.kt:29)
	at org.jetbrains.kotlin.backend.common.phaser.NamedCompilerPhase.invoke(CompilerPhase.kt:96)
	at org.jetbrains.kotlin.backend.common.phaser.CompositePhase.invoke(PhaseBuilders.kt:29)
	at org.jetbrains.kotlin.backend.common.phaser.NamedCompilerPhase.invoke(CompilerPhase.kt:96)
	at org.jetbrains.kotlin.backend.common.phaser.CompilerPhaseKt.invokeToplevel(CompilerPhase.kt:43)
	at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory.doGenerateFilesInternal(JvmIrCodegenFactory.kt:195)
	at org.jetbrains.kotlin.backend.jvm.JvmIrCodegenFactory.generateModule(JvmIrCodegenFactory.kt:60)
	at org.jetbrains.kotlin.codegen.KotlinCodegenFacade.compileCorrectFiles(KotlinCodegenFacade.java:35)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.generate(KotlinToJVMBytecodeCompiler.kt:331)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli(KotlinToJVMBytecodeCompiler.kt:123)
	at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules$cli$default(KotlinToJVMBytecodeCompiler.kt:58)
	at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:170)
	at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:52)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:92)
	at org.jetbrains.kotlin.cli.common.CLICompiler.execImpl(CLICompiler.kt:44)
	at org.jetbrains.kotlin.cli.common.CLITool.exec(CLITool.kt:98)
	at org.jetbrains.kotlin.incremental.IncrementalJvmCompilerRunner.runCompiler(IncrementalJvmCompilerRunner.kt:434)
	at org.jetbrains.kotlin.incremental.IncrementalJvmCompilerRunner.runCompiler(IncrementalJvmCompilerRunner.kt:120)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileIncrementally(IncrementalCompilerRunner.kt:357)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileIncrementally$default(IncrementalCompilerRunner.kt:299)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compileImpl(IncrementalCompilerRunner.kt:159)
	at org.jetbrains.kotlin.incremental.IncrementalCompilerRunner.compile(IncrementalCompilerRunner.kt:80)
	at org.jetbrains.kotlin.daemon.CompileServiceImplBase.execIncrementalCompiler(CompileServiceImpl.kt:622)
	at org.jetbrains.kotlin.daemon.CompileServiceImplBase.access$execIncrementalCompiler(CompileServiceImpl.kt:100)
	at org.jetbrains.kotlin.daemon.CompileServiceImpl.compile(CompileServiceImpl.kt:1713)
	at jdk.internal.reflect.GeneratedMethodAccessor87.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:359)
	at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
	at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.RuntimeException: Exception while generating code for:
FUN name:write$Self visibility:public modality:FINAL <> (self:dk.cachet.carp.common.application.Holder, output:kotlinx.serialization.encoding.CompositeEncoder, serialDesc:kotlinx.serialization.descriptors.SerialDescriptor) returnType:kotlin.Unit
  annotations:
    JvmStatic
  VALUE_PARAMETER name:self index:0 type:dk.cachet.carp.common.application.Holder
  VALUE_PARAMETER name:output index:1 type:kotlinx.serialization.encoding.CompositeEncoder
  VALUE_PARAMETER name:serialDesc index:2 type:kotlinx.serialization.descriptors.SerialDescriptor
  BLOCK_BODY
    CALL 'public abstract fun encodeSerializableElement <T> (descriptor: kotlinx.serialization.descriptors.SerialDescriptor, index: kotlin.Int, serializer: kotlinx.serialization.SerializationStrategy<T of kotlinx.serialization.encoding.CompositeEncoder.encodeSerializableElement>, value: T of kotlinx.serialization.encoding.CompositeEncoder.encodeSerializableElement): kotlin.Unit declared in kotlinx.serialization.encoding.CompositeEncoder' type=kotlin.Unit origin=null
      <T>: dk.cachet.carp.common.application.WithParameters<*, *>
      $this: GET_VAR 'output: kotlinx.serialization.encoding.CompositeEncoder declared in dk.cachet.carp.common.application.Holder.write$Self' type=kotlinx.serialization.encoding.CompositeEncoder origin=null
      descriptor: GET_VAR 'serialDesc: kotlinx.serialization.descriptors.SerialDescriptor declared in dk.cachet.carp.common.application.Holder.write$Self' type=kotlinx.serialization.descriptors.SerialDescriptor origin=null
      index: CONST Int type=kotlin.Int value=0
      serializer: CALL 'public final fun serializer <T0, T1> (typeSerial0: kotlinx.serialization.KSerializer<T0 of dk.cachet.carp.common.application.WithParameters.Companion.serializer>, typeSerial1: kotlinx.serialization.KSerializer<T1 of dk.cachet.carp.common.application.WithParameters.Companion.serializer>): kotlinx.serialization.KSerializer<dk.cachet.carp.common.application.WithParameters<T0 of dk.cachet.carp.common.application.WithParameters.Companion.serializer, T1 of dk.cachet.carp.common.application.WithParameters.Companion.serializer>> declared in dk.cachet.carp.common.application.WithParameters.Companion' type=kotlinx.serialization.KSerializer<dk.cachet.carp.common.application.WithParameters<T0 of dk.cachet.carp.common.application.WithParameters.Companion.serializer, T1 of dk.cachet.carp.common.application.WithParameters.Companion.serializer>> origin=null
        <T0>: <none>
        <T1>: <none>
        $this: GET_FIELD 'FIELD FIELD_FOR_OBJECT_INSTANCE name:Companion type:dk.cachet.carp.common.application.WithParameters.Companion visibility:public [final,static]' type=dk.cachet.carp.common.application.WithParameters.Companion origin=null
      value: BLOCK type=dk.cachet.carp.common.application.WithParameters<*, *> origin=null
        GET_FIELD 'FIELD PROPERTY_BACKING_FIELD name:devices type:dk.cachet.carp.common.application.WithParameters<*, *> visibility:private [final]' type=dk.cachet.carp.common.application.WithParameters<*, *> origin=null
          receiver: GET_VAR 'self: dk.cachet.carp.common.application.Holder declared in dk.cachet.carp.common.application.Holder.write$Self' type=dk.cachet.carp.common.application.Holder origin=null

	at org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.generate(FunctionCodegen.kt:50)
	at org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.generate$default(FunctionCodegen.kt:43)
	at org.jetbrains.kotlin.backend.jvm.codegen.ClassCodegen.generateMethodNode(ClassCodegen.kt:360)
	at org.jetbrains.kotlin.backend.jvm.codegen.ClassCodegen.generateMethod(ClassCodegen.kt:377)
	at org.jetbrains.kotlin.backend.jvm.codegen.ClassCodegen.generate(ClassCodegen.kt:131)
	at org.jetbrains.kotlin.backend.jvm.JvmLowerKt$codegenPhase$1$1.lower(JvmLower.kt:304)
	at org.jetbrains.kotlin.backend.common.phaser.FileLoweringPhaseAdapter.invoke(PhaseBuilders.kt:120)
	at org.jetbrains.kotlin.backend.common.phaser.FileLoweringPhaseAdapter.invoke(PhaseBuilders.kt:116)
	at org.jetbrains.kotlin.backend.common.phaser.NamedCompilerPhase.invoke(CompilerPhase.kt:96)
	at org.jetbrains.kotlin.backend.common.phaser.PerformByIrFilePhase.invokeSequential(performByIrFile.kt:65)
	... 44 more
Caused by: java.lang.IllegalArgumentException: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER name:typeSerial0 index:0 type:kotlinx.serialization.KSerializer<T0 of dk.cachet.carp.common.application.WithParameters.Companion.serializer>
	at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:483)
	at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:131)
	at org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl.accept(IrCallImpl.kt:47)
	at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.gen(ExpressionCodegen.kt:211)
	at org.jetbrains.kotlin.backend.jvm.codegen.IrCallGenerator$DefaultImpls.genValueAndPut(IrCallGenerator.kt:49)
	at org.jetbrains.kotlin.backend.jvm.codegen.IrCallGenerator$DefaultCallGenerator.genValueAndPut(IrCallGenerator.kt:52)
	at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:486)
	at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitCall(ExpressionCodegen.kt:131)
	at org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl.accept(IrCallImpl.kt:47)
	at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitStatementContainer(ExpressionCodegen.kt:433)
	at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitBlockBody(ExpressionCodegen.kt:437)
	at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.visitBlockBody(ExpressionCodegen.kt:131)
	at org.jetbrains.kotlin.ir.expressions.IrBlockBody.accept(IrBody.kt:54)
	at org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen.generate(ExpressionCodegen.kt:228)
	at org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.doGenerate(FunctionCodegen.kt:122)
	at org.jetbrains.kotlin.backend.jvm.codegen.FunctionCodegen.generate(FunctionCodegen.kt:48)
	... 53 more

This error seems similar to previously reported errors, which regardless seem to be fixed in 1.6.0:

• https://youtrack.jetbrains.com/issue/KT-49726
• @Contextual does not work with IR compiler #1584
• JVM Compiler error after upgrading to 1.5.30 #1646

To Reproduce

@Serializable
data class Holder( val devices: WithParameters<*, *> )

@Serializable
abstract class WithParameters<T1 : Type1, T2 : Type2>

@Serializable
class Type1

@Serializable
class Type2

Expected behavior

Compilation to succeed. :)

Environment

• Kotlin version: 1.6.0
• Library version: 1.3.1
• Kotlin platforms: JVM IR
• Gradle version: 6.8.3

[sandwwraith]

I've checked your sample — it's the same problem as #1646. Unfortunately, due to the oversight, the commit that fixed it landed in 1.5.31 branch but not 1.6.0 branch. It will be fixed again in 1.6.10