JVM_IR KT-50076 avoid CHECKCAST on moved dispatch receiver parameter
This commit is contained in:
+18
@@ -1073,6 +1073,24 @@ public class FirBytecodeTextTestGenerated extends AbstractFirBytecodeTextTest {
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public void testKt22714() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/kt22714.kt");
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}
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@Test
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@TestMetadata("noCheckcastOnDelegatingDefaultImplsCall.kt")
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public void testNoCheckcastOnDelegatingDefaultImplsCall() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/noCheckcastOnDelegatingDefaultImplsCall.kt");
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}
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@Test
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@TestMetadata("noCheckcastOnDispatchReceiverOfMethodWithDefaultParameters.kt")
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public void testNoCheckcastOnDispatchReceiverOfMethodWithDefaultParameters() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/noCheckcastOnDispatchReceiverOfMethodWithDefaultParameters.kt");
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}
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@Test
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@TestMetadata("noCheckcastOnSuper.kt")
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public void testNoCheckcastOnSuper() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/noCheckcastOnSuper.kt");
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}
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}
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@Nested
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+6
@@ -1050,6 +1050,12 @@ class ExpressionCodegen(
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MaterialValue(this, boxedRightType, expression.type)
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}
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IrTypeOperator.REINTERPRET_CAST -> {
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val targetType = typeMapper.mapType(typeOperand)
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expression.argument.accept(this, data).materialize()
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MaterialValue(this, targetType, typeOperand)
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}
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IrTypeOperator.INSTANCEOF -> {
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expression.argument.accept(this, data).materializeAt(context.irBuiltIns.anyNType)
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val type = typeMapper.boxType(typeOperand)
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+2
-1
@@ -153,7 +153,8 @@ private class InterfaceSuperCallsLowering(val context: JvmBackendContext) : IrEl
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}
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override fun visitCall(expression: IrCall): IrExpression {
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if (expression.superQualifierSymbol?.owner?.isInterface != true || expression.isSuperToAny()) {
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val superQualifierClass = expression.superQualifierSymbol?.owner
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if (superQualifierClass == null || !superQualifierClass.isInterface || expression.isSuperToAny()) {
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return super.visitCall(expression)
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}
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+34
-1
@@ -15,6 +15,7 @@ import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
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import org.jetbrains.kotlin.backend.jvm.JvmLoweredStatementOrigin
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import org.jetbrains.kotlin.backend.jvm.ir.IrInlineScopeResolver
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import org.jetbrains.kotlin.backend.jvm.ir.findInlineCallSites
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import org.jetbrains.kotlin.backend.jvm.ir.isInlineClassType
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import org.jetbrains.kotlin.descriptors.Modality
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import org.jetbrains.kotlin.ir.IrStatement
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import org.jetbrains.kotlin.ir.builders.irGetField
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@@ -25,6 +26,7 @@ import org.jetbrains.kotlin.ir.expressions.*
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import org.jetbrains.kotlin.ir.expressions.impl.IrBlockImpl
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import org.jetbrains.kotlin.ir.expressions.impl.IrCallImpl
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import org.jetbrains.kotlin.ir.expressions.impl.IrConstImpl
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import org.jetbrains.kotlin.ir.expressions.impl.IrTypeOperatorCallImpl
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import org.jetbrains.kotlin.ir.symbols.impl.IrPublicSymbolBase
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import org.jetbrains.kotlin.ir.symbols.impl.IrVariableSymbolImpl
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import org.jetbrains.kotlin.ir.types.*
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@@ -84,7 +86,11 @@ class JvmOptimizationLowering(val context: JvmBackendContext) : FileLoweringPass
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override fun visitCall(expression: IrCall, data: IrDeclaration?): IrExpression {
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expression.transformChildren(this, data)
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if (expression.symbol.owner.origin == IrDeclarationOrigin.DEFAULT_PROPERTY_ACCESSOR) {
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val callee = expression.symbol.owner
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reinterpretMovedDispatchReceiver(expression, callee)
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if (callee.origin == IrDeclarationOrigin.DEFAULT_PROPERTY_ACCESSOR) {
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return optimizePropertyAccess(expression, data)
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}
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@@ -103,6 +109,33 @@ class JvmOptimizationLowering(val context: JvmBackendContext) : FileLoweringPass
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return expression
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}
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private fun reinterpretMovedDispatchReceiver(expression: IrCall, callee: IrSimpleFunction) {
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val movedDispatchReceiverIndex = callee.valueParameters.indexOfFirst {
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it.origin == IrDeclarationOrigin.MOVED_DISPATCH_RECEIVER
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}
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if (movedDispatchReceiverIndex >= 0) {
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val movedDispatchReceiverParameter = callee.valueParameters[movedDispatchReceiverIndex]
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expression.putValueArgument(
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movedDispatchReceiverIndex,
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expression.getValueArgument(movedDispatchReceiverIndex)
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?.reinterpretAsDispatchReceiverOfType(movedDispatchReceiverParameter.type)
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)
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}
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}
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// Given a dispatch receiver expression, wrap it in REINTERPRET_CAST to the given type,
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// unless it's a value of inline class (which could be boxed at this point).
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// Avoids a CHECKCAST on a moved dispatch receiver argument.
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private fun IrExpression.reinterpretAsDispatchReceiverOfType(irType: IrType): IrExpression =
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if (this.type.isInlineClassType())
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this
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else
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IrTypeOperatorCallImpl(
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this.startOffset, this.endOffset,
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irType, IrTypeOperator.REINTERPRET_CAST, irType,
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this
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)
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private fun optimizePropertyAccess(expression: IrCall, data: IrDeclaration?): IrExpression {
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val accessor = expression.symbol.owner as? IrSimpleFunction ?: return expression
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if (accessor.modality != Modality.FINAL || accessor.isExternal) return expression
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@@ -50,7 +50,6 @@ enum class IrTypeOperator {
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/**
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* SAM conversion: value of functional type F is used where Single Abstract Method interface value is expected.
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* Currently this is possible in Kotlin/JVM only, however, there's a big demand for SAM conversion for Kotlin interfaces.
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*/
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SAM_CONVERSION,
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@@ -61,7 +60,8 @@ enum class IrTypeOperator {
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IMPLICIT_DYNAMIC_CAST,
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/**
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* C-like reinterpret_cast<T> using as primitive type operation in JS
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* C-like reinterpret_cast<T> using as primitive type operation in JS.
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* On JVM, tells back-end to treat argument as a value of a given type (even though exact JVM types might differ).
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*/
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REINTERPRET_CAST;
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}
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+48
-5
@@ -1,15 +1,58 @@
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// WITH_STDLIB
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interface A {
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fun f(x: String) = x
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interface IFoo {
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fun foo(): String = "K"
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}
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@Suppress("OPTIONAL_DECLARATION_USAGE_IN_NON_COMMON_SOURCE")
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@kotlin.jvm.JvmInline
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value class B(val y: String) : A {
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override fun f(x: String) = super.f(x + y)
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value class IcStr(val y: String) : IFoo {
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override fun foo(): String = y + super<IFoo>.foo()
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}
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@Suppress("OPTIONAL_DECLARATION_USAGE_IN_NON_COMMON_SOURCE")
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@kotlin.jvm.JvmInline
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value class IcInt(val i: Int) : IFoo {
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override fun foo(): String = "O" + super<IFoo>.foo()
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}
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@Suppress("OPTIONAL_DECLARATION_USAGE_IN_NON_COMMON_SOURCE")
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@kotlin.jvm.JvmInline
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value class IcLong(val l: Long) : IFoo {
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override fun foo(): String = "O" + super<IFoo>.foo()
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}
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@Suppress("OPTIONAL_DECLARATION_USAGE_IN_NON_COMMON_SOURCE")
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@kotlin.jvm.JvmInline
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value class IcAny(val a: Any?) : IFoo {
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override fun foo(): String = "O" + super<IFoo>.foo()
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}
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@Suppress("OPTIONAL_DECLARATION_USAGE_IN_NON_COMMON_SOURCE")
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@kotlin.jvm.JvmInline
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value class IcOverIc(val o: IcLong) : IFoo {
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override fun foo(): String = "O" + super<IFoo>.foo()
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}
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@Suppress("OPTIONAL_DECLARATION_USAGE_IN_NON_COMMON_SOURCE")
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@kotlin.jvm.JvmInline
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value class IcOverSuperInterface(val x: IFoo) : IFoo {
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override fun foo(): String = "O" + super<IFoo>.foo()
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}
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fun check(message: String, iFoo: IFoo) {
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val actual = iFoo.foo()
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if (actual != "OK")
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throw Exception("$message: \"$actual\" != OK")
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}
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fun box(): String {
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return B("K").f("O")
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check("IcStr", IcStr("O"))
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check("IcInt", IcInt(42))
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check("IcLong", IcLong(42L))
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check("IcAny", IcAny(""))
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check("IcOverIc", IcOverIc(IcLong(42L)))
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check("IcOverSuperInterface", IcOverSuperInterface(IcInt(42)))
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return "OK"
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}
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Vendored
+24
@@ -0,0 +1,24 @@
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interface Z {
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fun testFun() : String {
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return privateFun()
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}
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fun testProperty() : String {
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return privateProp
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}
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private fun privateFun(): String {
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return "O"
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}
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private val privateProp: String
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get() = "K"
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}
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object Z2 : Z
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fun box() : String {
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return Z2.testFun() + Z2.testProperty()
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}
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// 0 CHECKCAST
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+12
@@ -0,0 +1,12 @@
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open class A {
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fun foo(i: Int = 42) {}
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}
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class B : A()
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fun test() {
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B().foo()
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}
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// JVM_IR_TEMPLATES
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// 0 CHECKCAST
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@@ -0,0 +1,9 @@
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interface Tr {
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fun extra(): String = "e"
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}
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class N : Tr {
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override fun extra(): String = super.extra()
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}
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// 0 CHECKCAST
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+18
@@ -1061,6 +1061,24 @@ public class BytecodeTextTestGenerated extends AbstractBytecodeTextTest {
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public void testKt22714() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/kt22714.kt");
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}
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@Test
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@TestMetadata("noCheckcastOnDelegatingDefaultImplsCall.kt")
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public void testNoCheckcastOnDelegatingDefaultImplsCall() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/noCheckcastOnDelegatingDefaultImplsCall.kt");
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}
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@Test
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@TestMetadata("noCheckcastOnDispatchReceiverOfMethodWithDefaultParameters.kt")
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public void testNoCheckcastOnDispatchReceiverOfMethodWithDefaultParameters() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/noCheckcastOnDispatchReceiverOfMethodWithDefaultParameters.kt");
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}
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@Test
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@TestMetadata("noCheckcastOnSuper.kt")
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public void testNoCheckcastOnSuper() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/noCheckcastOnSuper.kt");
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}
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}
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@Nested
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+18
@@ -1073,6 +1073,24 @@ public class IrBytecodeTextTestGenerated extends AbstractIrBytecodeTextTest {
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public void testKt22714() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/kt22714.kt");
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}
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@Test
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@TestMetadata("noCheckcastOnDelegatingDefaultImplsCall.kt")
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public void testNoCheckcastOnDelegatingDefaultImplsCall() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/noCheckcastOnDelegatingDefaultImplsCall.kt");
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}
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@Test
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@TestMetadata("noCheckcastOnDispatchReceiverOfMethodWithDefaultParameters.kt")
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public void testNoCheckcastOnDispatchReceiverOfMethodWithDefaultParameters() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/noCheckcastOnDispatchReceiverOfMethodWithDefaultParameters.kt");
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}
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@Test
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@TestMetadata("noCheckcastOnSuper.kt")
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public void testNoCheckcastOnSuper() throws Exception {
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runTest("compiler/testData/codegen/bytecodeText/checkcast/noCheckcastOnSuper.kt");
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}
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}
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@Nested
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@@ -11,7 +11,6 @@ final class User$Companion : java/lang/Object, kotlinx/parcelize/Parceler {
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LABEL (L0)
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LINENUMBER (10)
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ALOAD (0)
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CHECKCAST (kotlinx/parcelize/Parceler)
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ILOAD (1)
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INVOKESTATIC (kotlinx/parcelize/Parceler$DefaultImpls, newArray, (Lkotlinx/parcelize/Parceler;I)[Ljava/lang/Object;)
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CHECKCAST ([LUser;)
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