translator: fix assignment argument variables

translator/src/main/kotlin/org/kotlinnative/translator/FunctionCodegen.kt

@@ -297,11 +297,11 @@ class FunctionCodegen(val state: TranslationState, val function: KtNamedFunction
         val assignExpression = evaluateExpression(eq.getNextSiblingIgnoringWhitespaceAndComments(), scopeDepth) ?: return null
 
         when (assignExpression) {
-        //TODO resolving
             is LLVMVariable -> {
-                assignExpression.kotlinName = identifier!!.text
-                assignExpression.pointer = false
-                variableManager.addVariable(identifier.text, assignExpression, scopeDepth)
+                val allocVar = variableManager.getVariable(identifier!!.text, LLVMIntType(), pointer = true)
+                codeBuilder.allocVar(allocVar)
+                variableManager.addVariable(identifier.text, allocVar, scopeDepth)
+                codeBuilder.copyVariableValue(assignExpression, allocVar)
             }
             is LLVMConstant -> {
                 val newVar = variableManager.getVariable(identifier!!.text, LLVMIntType(), pointer = true)

translator/src/main/kotlin/org/kotlinnative/translator/llvm/LLVMBuilder.kt

@@ -117,6 +117,13 @@ class LLVMBuilder(val arm: Boolean) {
         llvmCode.appendln(code)
     }
 
+    fun copyVariableValue(from: LLVMVariable, to: LLVMVariable) {
+        val tmp = getNewVariable(from.type, from.pointer)
+        llvmCode.appendln("$tmp = load ${tmp.type}, ${from.getType()} $from, align ${tmp.type.align}")
+        llvmCode.appendln("store ${to.type} $tmp, ${to.getType()} $to, align ${tmp.type.align}")
+
+    }
+
     fun loadArgument(llvmVariable: LLVMVariable, store: Boolean = true): LLVMVariable {
         val allocVar = LLVMVariable("${llvmVariable.label}.addr", llvmVariable.type, llvmVariable.kotlinName, true)
         addVariableByRef(allocVar, llvmVariable, store)