Simplify reified operations on type parameters in ExpressionCodegen

Move the "without propagation" logic to ReifiedTypeInliner since it's
only used from inline intrinsics.

compiler/backend/src/org/jetbrains/kotlin/codegen/ExpressionCodegen.java

@@ -4843,33 +4843,13 @@ The "returned" value of try expression with no finally is either the last expres
 
     public void putReifiedOperationMarkerIfTypeIsReifiedParameter(
             @NotNull KotlinType type, @NotNull ReifiedTypeInliner.OperationKind operationKind
-    ) {
-        putReifiedOperationMarkerIfTypeIsReifiedParameter(type, operationKind, v, this);
-    }
-
-    public static void putReifiedOperationMarkerIfTypeIsReifiedParameterWithoutPropagation(
-            @NotNull KotlinType type, @NotNull ReifiedTypeInliner.OperationKind operationKind, @NotNull InstructionAdapter v
-    ) {
-        putReifiedOperationMarkerIfTypeIsReifiedParameterImpl(type, operationKind, v, null);
-    }
-
-    private static void putReifiedOperationMarkerIfTypeIsReifiedParameter(
-            @NotNull KotlinType type, @NotNull ReifiedTypeInliner.OperationKind operationKind, @NotNull InstructionAdapter v,
-            @NotNull ExpressionCodegen codegen
-    ) {
-        putReifiedOperationMarkerIfTypeIsReifiedParameterImpl(type, operationKind, v, codegen);
-    }
-
-    private static void putReifiedOperationMarkerIfTypeIsReifiedParameterImpl(
-            @NotNull KotlinType type, @NotNull ReifiedTypeInliner.OperationKind operationKind, @NotNull InstructionAdapter v,
-            @Nullable ExpressionCodegen codegen
     ) {
         Pair<TypeParameterDescriptor, ReificationArgument> typeParameterAndReificationArgument = extractReificationArgument(type);
-        if (typeParameterAndReificationArgument != null && typeParameterAndReificationArgument.getFirst().isReified()) {
-            TypeParameterDescriptor typeParameterDescriptor = typeParameterAndReificationArgument.getFirst();
-            if (codegen != null) {
-                codegen.consumeReifiedOperationMarker(typeParameterDescriptor);
-            }
+        if (typeParameterAndReificationArgument == null) return;
+
+        TypeParameterDescriptor typeParameter = typeParameterAndReificationArgument.getFirst();
+        if (typeParameter.isReified()) {
+            consumeReifiedOperationMarker(typeParameter);
             ReifiedTypeInliner.putReifiedOperationMarker(operationKind, typeParameterAndReificationArgument.getSecond(), v);
         }
     }

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/ReifiedTypeInliner.kt

@@ -23,6 +23,7 @@ import org.jetbrains.kotlin.codegen.optimization.common.intConstant
 import org.jetbrains.kotlin.codegen.state.KotlinTypeMapper
 import org.jetbrains.kotlin.config.LanguageVersionSettings
 import org.jetbrains.kotlin.config.isReleaseCoroutines
+import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor
 import org.jetbrains.kotlin.resolve.jvm.AsmTypes
 import org.jetbrains.kotlin.types.KotlinType
 import org.jetbrains.kotlin.types.TypeUtils
@@ -109,6 +110,18 @@ class ReifiedTypeInliner(
                 Type.getMethodDescriptor(Type.VOID_TYPE, Type.INT_TYPE, AsmTypes.JAVA_STRING_TYPE), false
             )
         }
+
+        fun putReifiedOperationMarkerIfNeeded(
+            typeParameter: TypeParameterDescriptor,
+            isNullable: Boolean,
+            operationKind: OperationKind,
+            v: InstructionAdapter
+        ) {
+            if (typeParameter.isReified) {
+                val argument = ReificationArgument(typeParameter.name.asString(), isNullable, 0)
+                putReifiedOperationMarker(operationKind, argument, v)
+            }
+        }
     }
 
     private var maxStackSize = 0

compiler/backend/src/org/jetbrains/kotlin/codegen/inline/inlineIntrinsics.kt

@@ -9,7 +9,6 @@ import org.jetbrains.kotlin.backend.common.isBuiltInIntercepted
 import org.jetbrains.kotlin.backend.common.isBuiltInSuspendCoroutineUninterceptedOrReturn
 import org.jetbrains.kotlin.builtins.KotlinBuiltIns
 import org.jetbrains.kotlin.codegen.AsmUtil
-import org.jetbrains.kotlin.codegen.ExpressionCodegen
 import org.jetbrains.kotlin.codegen.coroutines.createMethodNodeForCoroutineContext
 import org.jetbrains.kotlin.codegen.coroutines.createMethodNodeForIntercepted
 import org.jetbrains.kotlin.codegen.coroutines.createMethodNodeForSuspendCoroutineUninterceptedOrReturn
@@ -41,9 +40,9 @@ internal fun generateInlineIntrinsic(
     val typeMapper = state.typeMapper
     return when {
         isSpecialEnumMethod(descriptor) ->
-            createSpecialEnumMethodBody(descriptor.name.asString(), typeArguments!!.keys.single().defaultType, typeMapper)
+            createSpecialEnumMethodBody(descriptor.name.asString(), typeArguments!!.keys.single(), typeMapper)
         TypeOfChecker.isTypeOf(descriptor) ->
-            createTypeOfMethodBody(typeArguments!!.keys.single().defaultType)
+            createTypeOfMethodBody(typeArguments!!.keys.single())
         descriptor.isBuiltInIntercepted(languageVersionSettings) ->
             createMethodNodeForIntercepted(descriptor, typeMapper, languageVersionSettings)
         descriptor.isBuiltInCoroutineContext(languageVersionSettings) ->
@@ -70,15 +69,13 @@ private fun isSpecialEnumMethod(descriptor: FunctionDescriptor): Boolean {
             (name == "enumValueOf" && parameters.size == 1 && KotlinBuiltIns.isString(parameters[0].type))
 }
 
-private fun createSpecialEnumMethodBody(name: String, type: KotlinType, typeMapper: KotlinTypeMapper): MethodNode {
+private fun createSpecialEnumMethodBody(name: String, typeParameter: TypeParameterDescriptor, typeMapper: KotlinTypeMapper): MethodNode {
     val isValueOf = "enumValueOf" == name
-    val invokeType = typeMapper.mapType(type)
+    val invokeType = typeMapper.mapType(typeParameter.defaultType)
     val desc = getSpecialEnumFunDescriptor(invokeType, isValueOf)
     val node = MethodNode(Opcodes.API_VERSION, Opcodes.ACC_STATIC, "fake", desc, null, null)
-    ExpressionCodegen.putReifiedOperationMarkerIfTypeIsReifiedParameterWithoutPropagation(
-        type,
-        ReifiedTypeInliner.OperationKind.ENUM_REIFIED,
-        InstructionAdapter(node)
+    ReifiedTypeInliner.putReifiedOperationMarkerIfNeeded(
+        typeParameter, false, ReifiedTypeInliner.OperationKind.ENUM_REIFIED, InstructionAdapter(node)
     )
     if (isValueOf) {
         node.visitInsn(Opcodes.ACONST_NULL)
@@ -101,11 +98,11 @@ internal fun getSpecialEnumFunDescriptor(type: Type, isValueOf: Boolean): String
     if (isValueOf) Type.getMethodDescriptor(type, JAVA_STRING_TYPE)
     else Type.getMethodDescriptor(AsmUtil.getArrayType(type))
 
-private fun createTypeOfMethodBody(type: KotlinType): MethodNode {
+private fun createTypeOfMethodBody(typeParameter: TypeParameterDescriptor): MethodNode {
     val node = MethodNode(Opcodes.API_VERSION, Opcodes.ACC_STATIC, "fake", Type.getMethodDescriptor(K_TYPE), null, null)
     val v = InstructionAdapter(node)
 
-    putTypeOfReifiedTypeParameter(v, type)
+    putTypeOfReifiedTypeParameter(v, typeParameter, false)
     v.areturn(K_TYPE)
 
     v.visitMaxs(2, 0)
@@ -113,8 +110,8 @@ private fun createTypeOfMethodBody(type: KotlinType): MethodNode {
     return node
 }
 
-private fun putTypeOfReifiedTypeParameter(v: InstructionAdapter, type: KotlinType) {
-    ExpressionCodegen.putReifiedOperationMarkerIfTypeIsReifiedParameterWithoutPropagation(type, ReifiedTypeInliner.OperationKind.TYPE_OF, v)
+private fun putTypeOfReifiedTypeParameter(v: InstructionAdapter, typeParameter: TypeParameterDescriptor, isNullable: Boolean) {
+    ReifiedTypeInliner.putReifiedOperationMarkerIfNeeded(typeParameter, isNullable, ReifiedTypeInliner.OperationKind.TYPE_OF, v)
     v.aconst(null)
 }
 
@@ -179,7 +176,7 @@ private fun doGenerateTypeProjection(
     val descriptor = type.constructor.declarationDescriptor
     val stackSize = if (descriptor is TypeParameterDescriptor) {
         if (descriptor.isReified) {
-            putTypeOfReifiedTypeParameter(v, type)
+            putTypeOfReifiedTypeParameter(v, descriptor, type.isMarkedNullable)
             2
         } else {
             // TODO: support non-reified type parameters in typeOf