Boxing.

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

@@ -1,11 +1,8 @@
 package org.jetbrains.kotlin.backend.konan
 
-import org.jetbrains.kotlin.backend.konan.PhaseManager
-import org.jetbrains.kotlin.backend.konan.Context
-import org.jetbrains.kotlin.backend.common.lower.LocalFunctionsLowering
-import org.jetbrains.kotlin.backend.common.lower.SharedVariablesLowering
 import org.jetbrains.kotlin.backend.common.runOnFilePostfix
-import org.jetbrains.kotlin.backend.konan.lower.CallableReferenceLowering
+import org.jetbrains.kotlin.backend.common.lower.*
+import org.jetbrains.kotlin.backend.konan.lower.*
 import org.jetbrains.kotlin.ir.declarations.IrFile
 import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
 
@@ -29,5 +26,8 @@ internal class KonanLower(val context: Context) {
         phaser.phase("Lower_callables") {
             CallableReferenceLowering(context).runOnFilePostfix(irFile)
         }
+        phaser.phase("Autobox") {
+            Autoboxing(context).runOnFilePostfix(irFile)
+        }
     }
 }

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

@@ -13,6 +13,7 @@ object KonanPhases {
         "Lower_shared_variables" to KonanPhase("Shared Variable Lowering"),
         "Lower_local_functions" to KonanPhase("Local Function Lowering"),
         "Lower_callables" to KonanPhase("Callable references Lowering"),
+        "Autobox" to KonanPhase("Autoboxing of primitive types"),
         "Lower" to KonanPhase("IR Lowering"),
         "Bitcode" to KonanPhase("LLVM BitCode Generation"),
         "RTTI" to KonanPhase("RTTI Generation"),

backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/Autoboxing.kt

@@ -0,0 +1,22 @@
+package org.jetbrains.kotlin.backend.konan.lower
+
+import org.jetbrains.kotlin.backend.common.*
+import org.jetbrains.kotlin.backend.konan.KonanBackendContext
+import org.jetbrains.kotlin.backend.konan.llvm.ir2string
+import org.jetbrains.kotlin.ir.declarations.*
+import org.jetbrains.kotlin.ir.expressions.IrBody
+
+internal class Autoboxing(val context: KonanBackendContext) : FunctionLoweringPass {
+
+    var boxedCount = 0
+
+    /*
+    override fun lower(irBody: IrBody) {
+        println("Boxer body " +  ir2string(irBody))
+    } */
+
+    override fun lower(irFunction: IrFunction) {
+        println("Boxer function " +  ir2string(irFunction))
+
+    }
+}

backend.native/tests/build.gradle

@@ -461,7 +461,12 @@ task statements0(type: RunKonanTest) {
 task boxing0(type: RunKonanTest) {
     disabled = true
     goldValue = "17\n"
-    source = "runtime/basic/boxing0.kt"
+    source = "codegen/boxing/boxing0.kt"
+}
+
+task boxing1 (type:RunKonanTest) {
+    disabled = true
+    source = "codegen/boxing/boxing1.kt"
 }
 
 task interface0(type: RunKonanTest) {

backend.native/tests/codegen/boxing/boxing1.kt

@@ -0,0 +1,9 @@
+fun foo(arg: Any) {
+    println(arg.toString())
+}
+
+fun main(args: Array<String>) {
+    foo(1)
+    foo(false)
+    foo("Hello")
+}