backend.konan: apply common lowering

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

@@ -0,0 +1,12 @@
+package org.jetbrains.kotlin.backend.konan
+
+import org.jetbrains.kotlin.backend.common.BackendContext
+import org.jetbrains.kotlin.backend.konan.llvm.KonanPlatform
+
+open internal class KonanBackendContext : BackendContext {
+    override val builtIns = KonanPlatform.builtIns
+
+    override val sharedVariablesManager by lazy {
+        TODO()
+    }
+}

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

@@ -0,0 +1,21 @@
+package org.jetbrains.kotlin.backend.konan
+
+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.ir.declarations.IrFile
+import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
+
+internal class KonanLower(val context: KonanBackendContext) {
+
+    fun lower(module: IrModuleFragment) {
+        module.files.forEach {
+            lower(it)
+        }
+    }
+
+    fun lower(irFile: IrFile) {
+        SharedVariablesLowering(context).runOnFilePostfix(irFile)
+        LocalFunctionsLowering(context).runOnFilePostfix(irFile)
+    }
+}

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

@@ -1,14 +1,17 @@
 package org.jetbrains.kotlin.backend.konan.llvm
 
 import llvm.*
+import org.jetbrains.kotlin.backend.konan.KonanBackendContext
 import org.jetbrains.kotlin.backend.konan.ModuleIndex
 import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
 import org.jetbrains.kotlin.resolve.BindingContext
 
+// TODO: module-independent part should probably be extracted
 internal class Context(val irModule: IrModuleFragment,
                        val runtime: Runtime,
                        val llvmModule: LLVMModuleRef,
-                       val bindingContext: BindingContext) {
+                       val bindingContext: BindingContext) : KonanBackendContext() {
+
     val moduleIndex = ModuleIndex(irModule)
 
     private fun importFunction(name: String, otherModule: LLVMModuleRef): LLVMValueRef {

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

@@ -36,6 +36,8 @@ fun emitLLVM(module: IrModuleFragment, runtimeFile: String, outFile: String) {
     val context = Context(
             module, runtime, llvmModule, BindingContext.EMPTY) // TODO: dispose
 
+    KonanLower(context).lower(module)
+
     module.acceptVoid(RTTIGeneratorVisitor(context))
     println("\n--- Generate bitcode ------------------------------------------------------\n")
     module.acceptVoid(CodeGeneratorVisitor(context))