JVM_IR KT-43066 Generate 'clone' in class implementing kotlin.Cloneable

compiler/fir/fir2ir/tests/org/jetbrains/kotlin/fir/Fir2IrTextTestGenerated.java

@@ -66,6 +66,11 @@ public class Fir2IrTextTestGenerated extends AbstractFir2IrTextTest {
             runTest("compiler/testData/ir/irText/classes/classes.kt");
         }
 
+        @TestMetadata("cloneable.kt")
+        public void testCloneable() throws Exception {
+            runTest("compiler/testData/ir/irText/classes/cloneable.kt");
+        }
+
         @TestMetadata("companionObject.kt")
         public void testCompanionObject() throws Exception {
             runTest("compiler/testData/ir/irText/classes/companionObject.kt");

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/BridgeLowering.kt

@@ -20,8 +20,10 @@ import org.jetbrains.kotlin.backend.jvm.ir.eraseTypeParameters
 import org.jetbrains.kotlin.backend.jvm.ir.isFromJava
 import org.jetbrains.kotlin.backend.jvm.ir.isJvmAbstract
 import org.jetbrains.kotlin.backend.jvm.lower.inlineclasses.unboxInlineClass
+import org.jetbrains.kotlin.builtins.StandardNames
 import org.jetbrains.kotlin.codegen.AsmUtil
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
+import org.jetbrains.kotlin.descriptors.DescriptorVisibility
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.ir.IrStatement
 import org.jetbrains.kotlin.ir.builders.*
@@ -407,16 +409,31 @@ internal class BridgeLowering(val context: JvmBackendContext) : FileLoweringPass
             overriddenSymbols = irFunction.overriddenSymbols.toList()
         }
 
+    private fun getBridgeVisibility(bridge: Bridge): DescriptorVisibility {
+        // Even though kotlin.Cloneable#clone() is protected, corresponding bridge is 'public' in JVM.
+        if (bridge.overridden.name.asString() == "clone" &&
+            bridge.overridden.parentAsClass.hasEqualFqName(StandardNames.FqNames.cloneable.toSafe())
+        ) {
+            return DescriptorVisibilities.PUBLIC
+        }
+
+        val overriddenVisibility = bridge.overridden.visibility
+        // Internal functions can be overridden by non-internal functions, which changes their names since the names of internal
+        // functions are mangled. In order to avoid mangling the name twice we reset the visibility for bridges to internal
+        // functions to public and use the mangled name directly.
+        return if (overriddenVisibility == DescriptorVisibilities.INTERNAL)
+            DescriptorVisibilities.PUBLIC
+        else
+            overriddenVisibility
+    }
+
     private fun IrClass.addBridge(bridge: Bridge, target: IrSimpleFunction): IrSimpleFunction =
         addFunction {
             startOffset = this@addBridge.startOffset
             endOffset = this@addBridge.startOffset
             modality = Modality.OPEN
             origin = IrDeclarationOrigin.BRIDGE
-            // Internal functions can be overridden by non-internal functions, which changes their names since the names of internal
-            // functions are mangled. In order to avoid mangling the name twice we reset the visibility for bridges to internal
-            // functions to public and use the mangled name directly.
-            visibility = bridge.overridden.visibility.takeUnless { it == DescriptorVisibilities.INTERNAL } ?: DescriptorVisibilities.PUBLIC
+            visibility = getBridgeVisibility(bridge)
             name = Name.identifier(bridge.signature.name)
             returnType = bridge.overridden.returnType.eraseTypeParameters()
             isSuspend = bridge.overridden.isSuspend

compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm/lower/InheritedDefaultMethodsOnClassesLowering.kt

@@ -8,6 +8,7 @@ package org.jetbrains.kotlin.backend.jvm.lower
 import org.jetbrains.kotlin.backend.common.ClassLoweringPass
 import org.jetbrains.kotlin.backend.common.FileLoweringPass
 import org.jetbrains.kotlin.backend.common.IrElementTransformerVoidWithContext
+import org.jetbrains.kotlin.backend.common.ir.allOverridden
 import org.jetbrains.kotlin.backend.common.ir.isMethodOfAny
 import org.jetbrains.kotlin.backend.common.ir.passTypeArgumentsFrom
 import org.jetbrains.kotlin.backend.common.lower.createIrBuilder
@@ -16,19 +17,17 @@ import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
 import org.jetbrains.kotlin.backend.jvm.JvmLoweredDeclarationOrigin
 import org.jetbrains.kotlin.backend.jvm.codegen.isJvmInterface
 import org.jetbrains.kotlin.backend.jvm.ir.*
+import org.jetbrains.kotlin.builtins.StandardNames
 import org.jetbrains.kotlin.config.JvmDefaultMode
-import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.descriptors.DescriptorVisibilities
+import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.descriptors.deserialization.PLATFORM_DEPENDENT_ANNOTATION_FQ_NAME
 import org.jetbrains.kotlin.ir.IrElement
 import org.jetbrains.kotlin.ir.builders.irBlockBody
 import org.jetbrains.kotlin.ir.builders.irCall
 import org.jetbrains.kotlin.ir.builders.irGet
 import org.jetbrains.kotlin.ir.builders.irReturn
-import org.jetbrains.kotlin.ir.declarations.IrClass
-import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
-import org.jetbrains.kotlin.ir.declarations.IrFile
-import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
+import org.jetbrains.kotlin.ir.declarations.*
 import org.jetbrains.kotlin.ir.expressions.IrCall
 import org.jetbrains.kotlin.ir.expressions.IrExpression
 import org.jetbrains.kotlin.ir.expressions.IrTypeOperator
@@ -46,14 +45,45 @@ internal val inheritedDefaultMethodsOnClassesPhase = makeIrFilePhase(
 private class InheritedDefaultMethodsOnClassesLowering(val context: JvmBackendContext) : ClassLoweringPass {
     override fun lower(irClass: IrClass) {
         if (!irClass.isJvmInterface) {
-            irClass.declarations.transformInPlace { declaration ->
-                (declaration as? IrSimpleFunction)?.findInterfaceImplementation(context.state.jvmDefaultMode)?.let { implementation ->
-                    generateDelegationToDefaultImpl(implementation, declaration)
-                } ?: declaration
+            irClass.declarations.transformInPlace {
+                transformMemberDeclaration(it)
             }
         }
     }
 
+    private fun transformMemberDeclaration(declaration: IrDeclaration): IrDeclaration {
+        if (declaration !is IrSimpleFunction) return declaration
+
+        if (declaration.isFakeOverride && declaration.name.asString() == "clone") {
+            val overriddenFunctions = declaration.allOverridden(false)
+            val cloneFun = overriddenFunctions.find { it.parentAsClass.hasEqualFqName(StandardNames.FqNames.cloneable.toSafe()) }
+            if (cloneFun != null && overriddenFunctions.all { it.isFakeOverride || it == cloneFun }) {
+                return generateCloneImplementation(declaration, cloneFun)
+            }
+        }
+
+        val implementation = declaration.findInterfaceImplementation(context.state.jvmDefaultMode)
+            ?: return declaration
+        return generateDelegationToDefaultImpl(implementation, declaration)
+    }
+
+    private fun generateCloneImplementation(fakeOverride: IrSimpleFunction, cloneFun: IrSimpleFunction): IrSimpleFunction {
+        assert(fakeOverride.isFakeOverride)
+        val irFunction = context.cachedDeclarations.getDefaultImplsRedirection(fakeOverride)
+        val irClass = fakeOverride.parentAsClass
+        val classStartOffset = irClass.startOffset
+        context.createJvmIrBuilder(irFunction.symbol, classStartOffset, classStartOffset).apply {
+            irFunction.body = irBlockBody {
+                +irReturn(
+                    irCall(cloneFun, origin = null, superQualifierSymbol = cloneFun.parentAsClass.symbol).apply {
+                        dispatchReceiver = irGet(irFunction.dispatchReceiverParameter!!)
+                    }
+                )
+            }
+        }
+        return irFunction
+    }
+
     private fun generateDelegationToDefaultImpl(
         interfaceImplementation: IrSimpleFunction,
         classOverride: IrSimpleFunction

compiler/testData/codegen/bytecodeListing/cloneable.kt

@@ -0,0 +1,19 @@
+class A : Cloneable
+
+interface I : Cloneable
+
+interface I2 : Cloneable {
+    override fun clone(): Any
+}
+
+class C : I
+
+class OC : I {
+    override fun clone(): OC = OC()
+}
+
+abstract class ACC : Cloneable
+
+abstract class ACI : I
+
+abstract class ACI2 : I2

compiler/testData/codegen/bytecodeListing/cloneable.txt

@@ -0,0 +1,60 @@
+@kotlin.Metadata
+public final class A {
+    // source: 'cloneable.kt'
+    public method <init>(): void
+    public @org.jetbrains.annotations.NotNull method clone(): java.lang.Object
+}
+
+@kotlin.Metadata
+public abstract class ACC {
+    // source: 'cloneable.kt'
+    public method <init>(): void
+    public @org.jetbrains.annotations.NotNull method clone(): java.lang.Object
+}
+
+@kotlin.Metadata
+public abstract class ACI {
+    // source: 'cloneable.kt'
+    public method <init>(): void
+    public @org.jetbrains.annotations.NotNull method clone(): java.lang.Object
+}
+
+@kotlin.Metadata
+public abstract class ACI2 {
+    // source: 'cloneable.kt'
+    public method <init>(): void
+}
+
+@kotlin.Metadata
+public final class C {
+    // source: 'cloneable.kt'
+    public method <init>(): void
+    public @org.jetbrains.annotations.NotNull method clone(): java.lang.Object
+}
+
+@kotlin.Metadata
+public final class I$DefaultImpls {
+    // source: 'cloneable.kt'
+    public static @org.jetbrains.annotations.NotNull method clone(@org.jetbrains.annotations.NotNull p0: I): java.lang.Object
+    public final inner class I$DefaultImpls
+}
+
+@kotlin.Metadata
+public interface I {
+    // source: 'cloneable.kt'
+    public final inner class I$DefaultImpls
+}
+
+@kotlin.Metadata
+public interface I2 {
+    // source: 'cloneable.kt'
+    public abstract @org.jetbrains.annotations.NotNull method clone(): java.lang.Object
+}
+
+@kotlin.Metadata
+public final class OC {
+    // source: 'cloneable.kt'
+    public method <init>(): void
+    public @org.jetbrains.annotations.NotNull method clone(): OC
+    public synthetic bridge method clone(): java.lang.Object
+}

compiler/testData/ir/irText/classes/cloneable.fir.txt

@@ -0,0 +1,92 @@
+FILE fqName:<root> fileName:/cloneable.kt
+  CLASS CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Cloneable]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.A
+    CONSTRUCTOR visibility:public <> () returnType:<root>.A [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Cloneable]'
+    FUN FAKE_OVERRIDE name:clone visibility:protected modality:OPEN <> ($this:kotlin.Cloneable) returnType:kotlin.Any [fake_override]
+      overridden:
+        protected open fun clone (): kotlin.Any declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Cloneable
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS INTERFACE name:I modality:ABSTRACT visibility:public superTypes:[kotlin.Cloneable]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.I
+    FUN FAKE_OVERRIDE name:clone visibility:protected modality:OPEN <> ($this:kotlin.Cloneable) returnType:kotlin.Any [fake_override]
+      overridden:
+        protected open fun clone (): kotlin.Any declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Cloneable
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:C modality:FINAL visibility:public superTypes:[<root>.I]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.C
+    CONSTRUCTOR visibility:public <> () returnType:<root>.C [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:C modality:FINAL visibility:public superTypes:[<root>.I]'
+    FUN FAKE_OVERRIDE name:clone visibility:protected modality:OPEN <> ($this:kotlin.Cloneable) returnType:kotlin.Any [fake_override]
+      overridden:
+        protected open fun clone (): kotlin.Any declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Cloneable
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:OC modality:FINAL visibility:public superTypes:[<root>.I]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.OC
+    CONSTRUCTOR visibility:public <> () returnType:<root>.OC [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:OC modality:FINAL visibility:public superTypes:[<root>.I]'
+    FUN name:clone visibility:protected modality:FINAL <> ($this:<root>.OC) returnType:<root>.OC
+      overridden:
+        protected open fun clone (): kotlin.Any declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:<root>.OC
+      BLOCK_BODY
+        RETURN type=kotlin.Nothing from='protected final fun clone (): <root>.OC declared in <root>.OC'
+          CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.OC' type=<root>.OC origin=null
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [operator] declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String declared in kotlin.Any
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any

compiler/testData/ir/irText/classes/cloneable.kt

@@ -0,0 +1,9 @@
+class A : Cloneable
+
+interface I : Cloneable
+
+class C : I
+
+class OC : I {
+    override fun clone(): OC = OC()
+}

compiler/testData/ir/irText/classes/cloneable.txt

@@ -0,0 +1,92 @@
+FILE fqName:<root> fileName:/cloneable.kt
+  CLASS CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Cloneable]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.A
+    CONSTRUCTOR visibility:public <> () returnType:<root>.A [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:A modality:FINAL visibility:public superTypes:[kotlin.Cloneable]'
+    FUN FAKE_OVERRIDE name:clone visibility:protected modality:OPEN <> ($this:kotlin.Cloneable) returnType:kotlin.Any [fake_override]
+      overridden:
+        protected open fun clone (): kotlin.Any declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Cloneable
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int [fake_override] declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String [fake_override] declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS INTERFACE name:I modality:ABSTRACT visibility:public superTypes:[kotlin.Cloneable]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.I
+    FUN FAKE_OVERRIDE name:clone visibility:protected modality:OPEN <> ($this:kotlin.Cloneable) returnType:kotlin.Any [fake_override]
+      overridden:
+        protected open fun clone (): kotlin.Any declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Cloneable
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int [fake_override] declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String [fake_override] declared in kotlin.Cloneable
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:C modality:FINAL visibility:public superTypes:[<root>.I]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.C
+    CONSTRUCTOR visibility:public <> () returnType:<root>.C [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:C modality:FINAL visibility:public superTypes:[<root>.I]'
+    FUN FAKE_OVERRIDE name:clone visibility:protected modality:OPEN <> ($this:kotlin.Cloneable) returnType:kotlin.Any [fake_override]
+      overridden:
+        protected open fun clone (): kotlin.Any [fake_override] declared in <root>.I
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Cloneable
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in <root>.I
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int [fake_override] declared in <root>.I
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String [fake_override] declared in <root>.I
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+  CLASS CLASS name:OC modality:FINAL visibility:public superTypes:[<root>.I]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:<root>.OC
+    CONSTRUCTOR visibility:public <> () returnType:<root>.OC [primary]
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in kotlin.Any'
+        INSTANCE_INITIALIZER_CALL classDescriptor='CLASS CLASS name:OC modality:FINAL visibility:public superTypes:[<root>.I]'
+    FUN name:clone visibility:protected modality:OPEN <> ($this:<root>.OC) returnType:<root>.OC
+      overridden:
+        protected open fun clone (): kotlin.Any [fake_override] declared in <root>.I
+      $this: VALUE_PARAMETER name:<this> type:<root>.OC
+      BLOCK_BODY
+        RETURN type=kotlin.Nothing from='protected open fun clone (): <root>.OC declared in <root>.OC'
+          CONSTRUCTOR_CALL 'public constructor <init> () [primary] declared in <root>.OC' type=<root>.OC origin=null
+    FUN FAKE_OVERRIDE name:equals visibility:public modality:OPEN <> ($this:kotlin.Any, other:kotlin.Any?) returnType:kotlin.Boolean [fake_override,operator]
+      overridden:
+        public open fun equals (other: kotlin.Any?): kotlin.Boolean [fake_override,operator] declared in <root>.I
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+      VALUE_PARAMETER name:other index:0 type:kotlin.Any?
+    FUN FAKE_OVERRIDE name:hashCode visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.Int [fake_override]
+      overridden:
+        public open fun hashCode (): kotlin.Int [fake_override] declared in <root>.I
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any
+    FUN FAKE_OVERRIDE name:toString visibility:public modality:OPEN <> ($this:kotlin.Any) returnType:kotlin.String [fake_override]
+      overridden:
+        public open fun toString (): kotlin.String [fake_override] declared in <root>.I
+      $this: VALUE_PARAMETER name:<this> type:kotlin.Any

compiler/tests/org/jetbrains/kotlin/codegen/BytecodeListingTestGenerated.java

@@ -44,6 +44,11 @@ public class BytecodeListingTestGenerated extends AbstractBytecodeListingTest {
         runTest("compiler/testData/codegen/bytecodeListing/callableNameIntrinsic.kt");
     }
 
+    @TestMetadata("cloneable.kt")
+    public void testCloneable() throws Exception {
+        runTest("compiler/testData/codegen/bytecodeListing/cloneable.kt");
+    }
+
     @TestMetadata("companionObjectVisibility_after.kt")
     public void testCompanionObjectVisibility_after() throws Exception {
         runTest("compiler/testData/codegen/bytecodeListing/companionObjectVisibility_after.kt");

compiler/tests/org/jetbrains/kotlin/codegen/ir/IrBytecodeListingTestGenerated.java

@@ -44,6 +44,11 @@ public class IrBytecodeListingTestGenerated extends AbstractIrBytecodeListingTes
         runTest("compiler/testData/codegen/bytecodeListing/callableNameIntrinsic.kt");
     }
 
+    @TestMetadata("cloneable.kt")
+    public void testCloneable() throws Exception {
+        runTest("compiler/testData/codegen/bytecodeListing/cloneable.kt");
+    }
+
     @TestMetadata("companionObjectVisibility_after.kt")
     public void testCompanionObjectVisibility_after() throws Exception {
         runTest("compiler/testData/codegen/bytecodeListing/companionObjectVisibility_after.kt");

compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java

@@ -65,6 +65,11 @@ public class IrTextTestCaseGenerated extends AbstractIrTextTestCase {
             runTest("compiler/testData/ir/irText/classes/classes.kt");
         }
 
+        @TestMetadata("cloneable.kt")
+        public void testCloneable() throws Exception {
+            runTest("compiler/testData/ir/irText/classes/cloneable.kt");
+        }
+
         @TestMetadata("companionObject.kt")
         public void testCompanionObject() throws Exception {
             runTest("compiler/testData/ir/irText/classes/companionObject.kt");