translator: fix class comparison in expressions, tests

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

@@ -734,6 +734,14 @@ abstract class BlockCodegen(val state: TranslationState, val variableManager: Va
         }
     }
 
+    private fun receivePointedArgument(variable: LLVMSingleValue, pointer: Int): LLVMSingleValue {
+        var currentVariable = variable
+        while (currentVariable.pointer > pointer) {
+            currentVariable = codeBuilder.receiveNativeValue(variable)
+        }
+        return currentVariable
+    }
+
     private fun addPrimitiveBinaryOperation(operator: IElementType, referenceName: KtSimpleNameExpression?, firstOp: LLVMSingleValue, secondOp: LLVMSingleValue): LLVMVariable {
         val firstNativeOp = codeBuilder.receiveNativeValue(firstOp)
         val secondNativeOp = codeBuilder.receiveNativeValue(secondOp)
@@ -746,14 +754,36 @@ abstract class BlockCodegen(val state: TranslationState, val variableManager: Va
             KtTokens.LTEQ -> firstOp.type!!.operatorLeq(firstNativeOp, secondNativeOp)
             KtTokens.GTEQ -> firstOp.type!!.operatorGeq(firstNativeOp, secondNativeOp)
             KtTokens.EQEQ ->
-                if ((firstOp.type is LLVMReferenceType) && (secondOp.type !is LLVMReferenceType))
-                    firstOp.type!!.operatorEq(firstNativeOp, secondOp)
+                if (firstOp.type is LLVMReferenceType)
+                    if (secondOp.type is LLVMReferenceType) {
+                        val firstPointedArgument = receivePointedArgument(firstOp, 1)
+                        val secondPointedArgument = receivePointedArgument(secondOp, 1)
+                        firstOp.type!!.operatorEq(firstPointedArgument, secondPointedArgument)
+                    } else
+                        firstOp.type!!.operatorEq(firstNativeOp, secondOp)
                 else
                     firstOp.type!!.operatorEq(firstNativeOp, secondNativeOp)
-            KtTokens.EQEQEQ ->
-                firstOp.type!!.operatorEq(firstNativeOp, secondNativeOp)
-            KtTokens.EXCLEQ -> firstOp.type!!.operatorNeq(firstNativeOp, secondNativeOp)
-            KtTokens.EXCLEQEQEQ -> firstOp.type!!.operatorNeq(firstNativeOp, secondNativeOp)
+            KtTokens.EQEQEQ -> {
+                val firstPointedArgument = receivePointedArgument(firstOp, 1)
+                val secondPointedArgument = receivePointedArgument(secondOp, 1)
+                firstOp.type!!.operatorEq(firstPointedArgument, secondPointedArgument)
+            }
+            KtTokens.EXCLEQ -> {
+                if (firstOp.type is LLVMReferenceType)
+                    if (secondOp.type is LLVMReferenceType) {
+                        val firstPointedArgument = receivePointedArgument(firstOp, 1)
+                        val secondPointedArgument = receivePointedArgument(secondOp, 1)
+                        firstOp.type!!.operatorNeq(firstPointedArgument, secondPointedArgument)
+                    } else
+                        firstOp.type!!.operatorNeq(firstNativeOp, secondOp)
+                else
+                    firstOp.type!!.operatorNeq(firstNativeOp, secondNativeOp)
+            }
+            KtTokens.EXCLEQEQEQ -> {
+                val firstPointedArgument = receivePointedArgument(firstOp, 1)
+                val secondPointedArgument = receivePointedArgument(secondOp, 1)
+                firstOp.type!!.operatorNeq(firstPointedArgument, secondPointedArgument)
+            }
             KtTokens.EQ -> {
                 if (secondOp.type is LLVMNullType) {
                     val result = codeBuilder.getNewVariable(firstOp.type!!, firstOp.pointer)

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

@@ -9,6 +9,10 @@ class LLVMVoidType() : LLVMType() {
     override fun mangle() = ""
     override val typename = "void"
 
+    override fun equals(other: Any?): Boolean {
+        return other is LLVMVoidType
+    }
+
     override fun hashCode() =
             typename.hashCode()
 

translator/src/test/kotlin/tests/input/referential_equality_2.txt

@@ -0,0 +1,2 @@
+referential_equality_2_EQ_master() == 1
+referential_equality_2_NEQ_master() == 1

translator/src/test/kotlin/tests/kotlin/referential_equality_2.kt

@@ -0,0 +1,28 @@
+class referential_equality_2_A
+
+fun referential_equality_2_build(): referential_equality_2_A {
+    return referential_equality_2_A()
+}
+
+fun referential_equality_2_EQ_slave(second_msg: referential_equality_2_A): Int {
+    if (second_msg == referential_equality_2_build()) {
+        return 0
+    }
+    return 1
+}
+
+fun referential_equality_2_NEQ_slave(second_msg: referential_equality_2_A): Int {
+    if (second_msg != referential_equality_2_build()) {
+        return 1
+    }
+    return 0
+}
+
+
+fun referential_equality_2_EQ_master(): Int {
+    return referential_equality_2_EQ_slave(referential_equality_2_build())
+}
+
+fun referential_equality_2_NEQ_master(): Int {
+    return referential_equality_2_NEQ_slave(referential_equality_2_build())
+}