translator: add stack variable allocation, refactoring, llvmVariable starts storing Kotlin Name

translator/src/main/kotlin/main.kt

@@ -21,3 +21,4 @@ fun main(args: Array<String>) {
     println(FileTranslator(state, files[0]).generateCode())
 }
 
+    

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

@@ -3,9 +3,7 @@ package org.kotlinnative.translator
 import org.jetbrains.kotlin.psi.KtFile
 import org.jetbrains.kotlin.psi.KtNamedFunction
 import org.kotlinnative.translator.llvm.LLVMBuilder
-import org.kotlinnative.translator.llvm.LLVMVariable
 import org.kotlinnative.translator.utils.FunctionDescriptor
-import java.util.*
 
 class FileTranslator(val state: TranslationState, val file: KtFile) {
 

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

@@ -66,7 +66,7 @@ class FunctionCodegen(val state: TranslationState, val function: KtNamedFunction
 
     private fun generateLoadArguments(function: KtNamedFunction) {
         args?.forEach {
-            val loadVariable = LLVMVariable("%${it.name}", it.type)
+            val loadVariable = LLVMVariable("%${it.name}", it.type, it.name)
             codeBuilder.loadVariable(loadVariable)
             variableManager.addVariable(it.name, loadVariable, 2)
         }
@@ -76,6 +76,7 @@ class FunctionCodegen(val state: TranslationState, val function: KtNamedFunction
         when (expr) {
             is KtBlockExpression -> expressionWalker(expr.firstChild, scopeDepth + 1)
             is KtProperty -> evaluateLeafPsiElement(expr.firstChild as LeafPsiElement, scopeDepth)
+            is KtBinaryExpression -> evaluateBinaryExpression(expr, scopeDepth)
             is PsiElement -> evaluateExpression(expr.firstChild, scopeDepth + 1)
             null -> {
                 variableManager.pullUpwardsLevel(scopeDepth)
@@ -141,7 +142,7 @@ class FunctionCodegen(val state: TranslationState, val function: KtNamedFunction
 
     private fun evaluateConstantExpression(expr: KtConstantExpression): LLVMVariable {
         val node = expr.node
-        return LLVMVariable(node.firstChildNode.text, ::LLVMIntType.invoke())
+        return codeBuilder.addConstant(LLVMVariable(node.firstChildNode.text, LLVMIntType()))
     }
 
     private fun evaluatePsiElement(element: PsiElement, scopeDepth: Int): LLVMVariable? {
@@ -168,9 +169,12 @@ class FunctionCodegen(val state: TranslationState, val function: KtNamedFunction
 
         val assignExpression = evaluateExpression(eq.getNextSiblingIgnoringWhitespaceAndComments(), scopeDepth) ?: return null
         when (assignExpression) {
-            is LLVMVariable -> variableManager.addVariable(identifier!!.text, assignExpression, scopeDepth);
+            is LLVMVariable -> {
+                variableManager.addVariable(identifier!!.text, assignExpression, scopeDepth)
+                return null
+            }
         }
-        codeBuilder.addAssignment(LLVMVariable("%${identifier!!.text}"), assignExpression)
+        codeBuilder.addAssignment(LLVMVariable("%${identifier!!.text}", null, identifier.text), assignExpression)
         return null
     }
 

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

@@ -18,7 +18,6 @@ import org.jetbrains.kotlin.resolve.BindingContext
 import org.jetbrains.kotlin.resolve.jvm.TopDownAnalyzerFacadeForJVM
 import org.jetbrains.kotlin.utils.PathUtil
 import org.kotlinnative.translator.exceptions.TranslationException
-import org.kotlinnative.translator.llvm.LLVMVariable
 import org.kotlinnative.translator.utils.FunctionDescriptor
 import java.util.*
 
@@ -36,7 +35,7 @@ class TranslationState(sources: List<String>, disposer: Disposable) {
             private var hasError = false
 
             override fun hasErrors(): Boolean {
-                return hasError;
+                return hasError
             }
 
             override fun report(severity: CompilerMessageSeverity, message: String, location: CompilerMessageLocation) {

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

@@ -16,9 +16,9 @@ class VariableManager {
         fileVariableCollectionTree.forEach { s, stack -> if (!stack.empty() && stack.peek().second >= level) stack.pop() else Unit }
     }
 
-    fun addVariable(name: String, variable: LLVMVariable, level: Int){
-        val stack = fileVariableCollectionTree.getOrDefault(String, Stack<Pair<LLVMVariable, Int>>());
-        stack.push(Pair(variable, level));
+    fun addVariable(name: String, variable: LLVMVariable, level: Int) {
+        val stack = fileVariableCollectionTree.getOrDefault(String, Stack<Pair<LLVMVariable, Int>>())
+        stack.push(Pair(variable, level))
         fileVariableCollectionTree.put(name, stack)
     }
 

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

@@ -32,6 +32,7 @@ class LLVMBuilder {
             KtTokens.PLUS -> firstOp.type!!.operatorPlus(newVar, firstOp, secondOp)
             KtTokens.MINUS -> firstOp.type!!.operatorMinus(newVar, firstOp, secondOp)
             KtTokens.MUL -> firstOp.type!!.operatorTimes(newVar, firstOp, secondOp)
+            KtTokens.EQ -> throw UnsupportedOperationException()
             else -> throw UnsupportedOperationException("Unknown binary operator")
         }
 
@@ -61,8 +62,25 @@ class LLVMBuilder {
     }
 
     fun loadVariable(llvmVariable: LLVMVariable) {
-        llvmCode.appendln("$llvmVariable.addr = alloca ${llvmVariable.type}, align ${llvmVariable.type?.getAlign()}")
-        llvmCode.appendln("store ${llvmVariable.type} $llvmVariable, ${llvmVariable.type}* ${llvmVariable.type}.addr, align ${llvmVariable.type?.getAlign()}")
+        addVariableByRef(llvmVariable, LLVMVariable("${llvmVariable.label}.addr", llvmVariable.type, llvmVariable.kotlinName))
+    }
+
+    fun addVariableByRef(targetVariable: LLVMVariable, sourceVariable: LLVMVariable) {
+        llvmCode.appendln("$sourceVariable = alloca ${sourceVariable.type}, align ${sourceVariable.type?.getAlign()}")
+        llvmCode.appendln("store ${targetVariable.type} $targetVariable, ${targetVariable.type}* ${sourceVariable}, align ${targetVariable.type?.getAlign()}")
+    }
+
+    fun addVariableByValue(targetVariable: LLVMVariable, sourceVariable: LLVMVariable) {
+        val tmp = getNewVariable(targetVariable.type)
+        llvmCode.appendln("$tmp   = alloca ${tmp.type}, align ${tmp.type?.getAlign()}")
+        llvmCode.appendln("store ${tmp.type} $sourceVariable, ${tmp.type}* ${tmp}, align ${tmp.type?.getAlign()}")
+        llvmCode.appendln("$targetVariable = load ${targetVariable.type}, ${targetVariable.type}* $tmp, align ${targetVariable.type?.getAlign()}")
+    }
+
+    fun addConstant(sourceVariable: LLVMVariable): LLVMVariable {
+        val target = getNewVariable(sourceVariable.type)
+        addVariableByValue(target, sourceVariable)
+        return target
     }
 
     override fun toString(): String {

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

@@ -2,7 +2,7 @@ package org.kotlinnative.translator.llvm
 
 import org.kotlinnative.translator.llvm.types.LLVMType
 
-class LLVMVariable(val label: String, val type: LLVMType? = null) : LLVMNode() {
+class LLVMVariable(val label: String, val type: LLVMType? = null, val kotlinName: String? = null) : LLVMNode() {
 
     override fun toString(): String = label
 

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

@@ -7,7 +7,7 @@ import org.kotlinnative.translator.utils.FunctionArgument
 fun LLVMFunctionDescriptor(name: String, argTypes: List<FunctionArgument>?, returnType: LLVMType, declare: Boolean = false) =
         "${if (declare) "declare" else "define"} $returnType @$name(${
         argTypes?.mapIndexed { i: Int, s: FunctionArgument ->
-            "${s.type} %tmp.${s.name}"
+            "${s.type} %${s.name}"
         }?.joinToString() ?: ""})"
 
 fun LLVMMapStandardType(type: String): LLVMType = when (type) {

translator/src/main/kotlin/org/kotlinnative/translator/llvm/types/LLVMTypes.kt

@@ -6,4 +6,4 @@ enum class LLVMTypes {
     int, double, float, char
 }
 
-val typesMap = mapOf(Pair(LLVMTypes.int, ::LLVMIntType));
+val typesMap = mapOf(Pair(LLVMTypes.int, ::LLVMIntType))