Refactoring + synced vtable for DFG and for bitcode

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/descriptors/ClassVtablesBuilder.kt

@@ -20,6 +20,7 @@ import org.jetbrains.kotlin.backend.konan.*
 import org.jetbrains.kotlin.backend.konan.irasdescriptors.*
 import org.jetbrains.kotlin.backend.konan.llvm.functionName
 import org.jetbrains.kotlin.backend.konan.llvm.localHash
+import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.ir.declarations.IrClass
 import org.jetbrains.kotlin.ir.util.simpleFunctions
 
@@ -49,15 +50,19 @@ internal class OverriddenFunctionDescriptor(
                 && descriptor.target.overrides(overriddenDescriptor)
                 && descriptor.bridgeDirectionsTo(overriddenDescriptor).allNotNeeded()
 
-    fun getImplementation(context: Context): SimpleFunctionDescriptor {
+    fun getImplementation(context: Context): SimpleFunctionDescriptor? {
         val target = descriptor.target
-        if (!needBridge) return target
-        val bridgeOwner = if (inheritsBridge) {
-            target // Bridge is inherited from superclass.
-        } else {
-            descriptor
+        val implementation = if (!needBridge)
+            target
+        else {
+            val bridgeOwner = if (inheritsBridge) {
+                target // Bridge is inherited from superclass.
+            } else {
+                descriptor
+            }
+            context.specialDeclarationsFactory.getBridgeDescriptor(OverriddenFunctionDescriptor(bridgeOwner, overriddenDescriptor))
         }
-        return context.specialDeclarationsFactory.getBridgeDescriptor(OverriddenFunctionDescriptor(bridgeOwner, overriddenDescriptor))
+        return if (implementation.modality == Modality.ABSTRACT) null else implementation
     }
 
     override fun toString(): String {

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/RTTIGenerator.kt

@@ -200,7 +200,7 @@ internal class RTTIGenerator(override val context: Context) : ContextUtils {
         // TODO: compile-time resolution limits binary compatibility
         val vtableEntries = context.getVtableBuilder(classDesc).vtableEntries.map {
             val implementation = it.implementation
-            if (implementation.isExternalObjCClassMethod() || implementation.modality == Modality.ABSTRACT) {
+            if (implementation == null || implementation.isExternalObjCClassMethod()) {
                 NullPointer(int8Type)
             } else {
                 implementation.entryPointAddress
@@ -220,11 +220,7 @@ internal class RTTIGenerator(override val context: Context) : ContextUtils {
 
             // TODO: compile-time resolution limits binary compatibility
             val implementation = it.implementation
-            val methodEntryPoint = if (implementation.modality == Modality.ABSTRACT) {
-                null
-            } else {
-                implementation.entryPointAddress
-            }
+            val methodEntryPoint = implementation?.entryPointAddress
             MethodTableRecord(nameSignature, methodEntryPoint)
         }.sortedBy { it.nameSignature.value }
     }

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/optimizations/DFGSerializer.kt

@@ -1178,9 +1178,11 @@ internal object DFGSerializer {
             allTypes.forEach {
                 println(it)
                 println("    SUPER TYPES:")
-                it.superTypes.forEach {
-                    println("        $it")
-                }
+                it.superTypes.forEach { println("        $it") }
+                println("    VTABLE:")
+                it.vtable.forEach { println("        $it") }
+                println("    ITABLE:")
+                it.itable.forEach { t, u -> println("        $t: $u") }
             }
 
             functions.forEach {

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/optimizations/DataFlowIR.kt

@@ -483,16 +483,11 @@ internal object DataFlowIR {
                            Type.Public(name.localHash.value, isFinal, isAbstract, module, symbolTableIndex, takeName { name })
                        else
                            Type.Private(privateTypeIndex++, isFinal, isAbstract, module, symbolTableIndex, takeName { name })
-            if (!descriptor.isInterface) {
+            if (!isAbstract) {
                 val vtableBuilder = context.getVtableBuilder(descriptor)
-                type.vtable += vtableBuilder.vtableEntries.map { mapFunction(it.getImplementation(context)) }
-                if (!isAbstract) {
-                    vtableBuilder.methodTableEntries.forEach {
-                        type.itable.put(
-                                it.overriddenDescriptor.functionName.localHash.value,
-                                mapFunction(it.getImplementation(context))
-                        )
-                    }
+                type.vtable += vtableBuilder.vtableEntries.map { mapFunction(it.getImplementation(context)!!) }
+                vtableBuilder.methodTableEntries.forEach {
+                    type.itable[it.overriddenDescriptor.functionName.localHash.value] = mapFunction(it.getImplementation(context)!!)
                 }
             }
             classMap.put(descriptor, type)