diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArrayGet.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArrayGet.kt
index 93d9ab6f17c..7cbe3c1dbe3 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArrayGet.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArrayGet.kt
@@ -24,7 +24,7 @@ import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter
 public class ArrayGet : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod): Callable =
-            createMappedCallable(method) {
+            createIntrinsicCallable(method) {
                 val type = correctElementType(calcReceiverType())
                 it.aload(type)
             }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArrayIterator.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArrayIterator.kt
index b6f517603b5..74234de4910 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArrayIterator.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArrayIterator.kt
@@ -44,7 +44,7 @@ import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter
 
 public class ArrayIterator : IntrinsicMethod() {
     override fun toCallable(method: CallableMethod): Callable {
-        return createUnaryCallable(method) {
+        return createUnaryIntrinsicCallable(method, needPrimitiveCheck = false) {
             val methodSignature = "(${method.owner.getDescriptor()})${returnType.getDescriptor()}"
             it.invokestatic("kotlin/jvm/internal/InternalPackage", "iterator", methodSignature, false)
         }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArraySize.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArraySize.kt
index d2dcf66cc55..08becf136d5 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArraySize.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ArraySize.kt
@@ -22,7 +22,7 @@ import org.jetbrains.kotlin.codegen.CallableMethod
 public class ArraySize : IntrinsicMethod() {
 
     public override fun toCallable(method: CallableMethod): Callable {
-        return createUnaryCallable(method) { adapter ->
+        return createUnaryIntrinsicCallable(method) { adapter ->
             adapter.arraylength()
         }
     }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/BinaryOp.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/BinaryOp.kt
index d9f1d11ff6a..095d329f0d3 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/BinaryOp.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/BinaryOp.kt
@@ -36,7 +36,7 @@ public class BinaryOp(private val opcode: Int) : IntrinsicMethod() {
         val operandType = numberFunctionOperandType(returnType)
         val paramType = if (shift()) Type.INT_TYPE else operandType
 
-        return binaryIntrinsic(operandType, paramType, operandType) {
+        return createBinaryIntrinsicCallable(operandType, paramType, operandType) {
             v -> v.visitInsn(returnType.getOpcode(opcode))
         }
     }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Clone.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Clone.kt
index f61c851da77..42ea2d1e8df 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Clone.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Clone.kt
@@ -24,7 +24,7 @@ import org.jetbrains.org.objectweb.asm.Opcodes
 public class Clone : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod, isSuperCall: Boolean): Callable {
-        return createUnaryCallable(method, OBJECT_TYPE) {
+        return createUnaryIntrinsicCallable(method, OBJECT_TYPE, needPrimitiveCheck = false) {
             val opcodes: Int = if (isSuperCall) Opcodes.INVOKESPECIAL else Opcodes.INVOKEVIRTUAL
             it.visitMethodInsn(opcodes, "java/lang/Object", "clone", "()Ljava/lang/Object;", false)
         }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/CompareTo.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/CompareTo.kt
index 9edc646b5f6..94cd9ba4d02 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/CompareTo.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/CompareTo.kt
@@ -35,8 +35,8 @@ public class CompareTo : IntrinsicMethod() {
     }
 
     override fun toCallable(method: CallableMethod): Callable {
-        val parameterType = comparisonOperandType(method.thisType ?: method.receiverType, method.parameterTypes.single())
-        return binaryIntrinsic(method.returnType, parameterType, parameterType, null) {
+        val parameterType = comparisonOperandType(method.thisType ?: method.receiverType, method.argumentTypes.single())
+        return createBinaryIntrinsicCallable(method.returnType, parameterType, parameterType, null) {
             genInvoke(parameterType, it)
         }
     }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Equals.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Equals.kt
index 7b5f7ee1f37..38744a7739e 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Equals.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Equals.kt
@@ -24,7 +24,7 @@ import org.jetbrains.kotlin.resolve.jvm.AsmTypes.OBJECT_TYPE
 public class Equals : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod): Callable {
-        return binaryIntrinsic(method.returnType, OBJECT_TYPE, nullOrObject(method.thisType), nullOrObject(method.receiverType)) {
+        return createBinaryIntrinsicCallable(method.returnType, OBJECT_TYPE, nullOrObject(method.thisType), nullOrObject(method.receiverType)) {
             AsmUtil.genAreEqualCall(it)
         }
     }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Increment.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Increment.kt
index cdcbfb503c4..a147002bcea 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Increment.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Increment.kt
@@ -27,7 +27,7 @@ import org.jetbrains.kotlin.resolve.calls.model.ResolvedCall
 public class Increment(private val myDelta: Int) : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod, isSuper: Boolean, resolvedCall: ResolvedCall<*>): Callable {
-        return createMappedCallable(method) {
+        return createIntrinsicCallable(method) {
             val jetExpression = resolvedCall.getCall().getCalleeExpression()
             assert(jetExpression !is JetPrefixExpression) { "There should be postfix increment ${jetExpression!!.getText()}" }
             genIncrement(returnType, myDelta, it)
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/IntrinsicCallable.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/IntrinsicCallable.kt
index 5e3f9739426..62ddce21b44 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/IntrinsicCallable.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/IntrinsicCallable.kt
@@ -64,7 +64,7 @@ public abstract class IntrinsicCallable(override val returnType: Type,
     }
 }
 
-fun binaryIntrinsic(returnType: Type, valueParameterType: Type, thisType: Type? = null, receiverType: Type? = null, lambda: IntrinsicCallable.(i: InstructionAdapter) -> Unit): IntrinsicCallable {
+fun createBinaryIntrinsicCallable(returnType: Type, valueParameterType: Type, thisType: Type? = null, receiverType: Type? = null, lambda: IntrinsicCallable.(i: InstructionAdapter) -> Unit): IntrinsicCallable {
     assert(AsmUtil.isPrimitive(returnType)) { "Return type of BinaryOp intrinsic should be of primitive type : " + returnType }
 
     return object : IntrinsicCallable(returnType, listOf(valueParameterType), thisType, receiverType) {
@@ -74,14 +74,19 @@ fun binaryIntrinsic(returnType: Type, valueParameterType: Type, thisType: Type?
     }
 }
 
-public class UnaryIntrinsic(val callable: CallableMethod, val newReturnType: Type? = null, needPrimitiveCheck: Boolean = false, val newThisType: Type? = null, val invoke: UnaryIntrinsic.(v: InstructionAdapter) -> Unit) :
-        IntrinsicCallable(newReturnType ?: callable.returnType, callable.valueParameterTypes, newThisType ?: callable.thisType, callable.receiverType) {
+public class UnaryIntrinsic(
+        callable: CallableMethod,
+        newReturnType: Type? = null,
+        needPrimitiveCheck: Boolean = true,
+        newThisType: Type? = null,
+        private val invoke: UnaryIntrinsic.(v: InstructionAdapter) -> Unit
+) : IntrinsicCallable(newReturnType ?: callable.returnType, callable.valueParameterTypes, newThisType ?: callable.thisType, callable.receiverType) {
 
     init {
         if (needPrimitiveCheck) {
-            assert(AsmUtil.isPrimitive(returnType)) { "Return type of UnaryPlus intrinsic should be of primitive type : " + returnType }
+            assert(AsmUtil.isPrimitive(returnType)) { "Return type of UnaryPlus intrinsic should be of primitive type: $returnType" }
         }
-        assert(valueParameterTypes.isEmpty(), "Unary operation should not have any parameters")
+        assert(valueParameterTypes.isEmpty()) { "Unary operation should not have any parameters" }
     }
 
     override fun invokeIntrinsic(v: InstructionAdapter) {
@@ -89,8 +94,14 @@ public class UnaryIntrinsic(val callable: CallableMethod, val newReturnType: Typ
     }
 }
 
-public fun createUnaryCallable(callable: CallableMethod, newReturnType: Type? = null, needPrimitiveCheck: Boolean = false, invoke: IntrinsicCallable.(v: InstructionAdapter) -> Unit) : IntrinsicCallable {
-    return UnaryIntrinsic(callable, newReturnType, needPrimitiveCheck, invoke = invoke)
+public fun createUnaryIntrinsicCallable(
+        callable: CallableMethod,
+        newReturnType: Type? = null,
+        needPrimitiveCheck: Boolean = true,
+        newThisType: Type? = null,
+        invoke: IntrinsicCallable.(v: InstructionAdapter) -> Unit
+) : IntrinsicCallable {
+    return UnaryIntrinsic(callable, newReturnType, needPrimitiveCheck, newThisType, invoke = invoke)
 }
 
 public open class MappedCallable(val callable: CallableMethod, val invoke: IntrinsicCallable.(v: InstructionAdapter) -> Unit = {}) :
@@ -101,6 +112,6 @@ public open class MappedCallable(val callable: CallableMethod, val invoke: Intri
     }
 }
 
-public fun createMappedCallable(callable: CallableMethod, invoke: IntrinsicCallable.(v: InstructionAdapter) -> Unit) : IntrinsicCallable {
+public fun createIntrinsicCallable(callable: CallableMethod, invoke: IntrinsicCallable.(v: InstructionAdapter) -> Unit) : IntrinsicCallable {
     return MappedCallable(callable, invoke)
 }
\ No newline at end of file
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Inv.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Inv.kt
index d29bb0a6d32..582e3564eea 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Inv.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/Inv.kt
@@ -25,7 +25,7 @@ public class Inv : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod): Callable {
         val type = numberFunctionOperandType(method.returnType)
-        return UnaryIntrinsic(method, newThisType = type) {
+        return createUnaryIntrinsicCallable(method, newThisType = type) {
             if (returnType == Type.LONG_TYPE) {
                 it.lconst(-1)
             }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/JavaClassArray.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/JavaClassArray.kt
index edbbe8dd77f..e8a814126a7 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/JavaClassArray.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/JavaClassArray.kt
@@ -21,7 +21,7 @@ import org.jetbrains.kotlin.codegen.CallableMethod
 
 public class JavaClassArray : IntrinsicMethod() {
     override fun toCallable(method: CallableMethod): Callable {
-        return createMappedCallable(method) {
+        return createIntrinsicCallable(method) {
             //do nothing all generated as vararg
         }
     }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/NumberCast.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/NumberCast.kt
index dcc1e41dda4..e961288dd37 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/NumberCast.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/NumberCast.kt
@@ -23,7 +23,7 @@ import org.jetbrains.kotlin.codegen.StackValue
 public class NumberCast : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod): Callable {
-        return createUnaryCallable(method) {
+        return createUnaryIntrinsicCallable(method) {
             StackValue.coerce(calcReceiverType()!!, returnType, it)
         }
     }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/StringGetChar.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/StringGetChar.kt
index d56849cf0f9..f57345e1272 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/StringGetChar.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/StringGetChar.kt
@@ -22,7 +22,7 @@ import org.jetbrains.kotlin.codegen.CallableMethod
 public class StringGetChar : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod): Callable {
-        return createMappedCallable(method) {
+        return createIntrinsicCallable(method) {
             it.invokevirtual("java/lang/String", "charAt", "(I)C", false)
         }
     }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/StringPlus.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/StringPlus.kt
index f699d64d866..b92c6a8af25 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/StringPlus.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/StringPlus.kt
@@ -22,7 +22,7 @@ import org.jetbrains.kotlin.codegen.CallableMethod
 public class StringPlus : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod): Callable {
-        return createMappedCallable(method) {
+        return createIntrinsicCallable(method) {
             it.invokestatic("kotlin/jvm/internal/Intrinsics", "stringPlus", "(Ljava/lang/String;Ljava/lang/Object;)Ljava/lang/String;", false)
         }
     }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ToString.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ToString.kt
index 753047595e3..339e18552cf 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ToString.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/ToString.kt
@@ -24,7 +24,7 @@ public class ToString : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod): Callable {
         val type = AsmUtil.stringValueOfType(method.thisType ?: method.receiverType)
-        return UnaryIntrinsic(method, newThisType = type) {
+        return createUnaryIntrinsicCallable(method, newThisType = type) {
             it.invokestatic("java/lang/String", "valueOf", "(" + type.getDescriptor() + ")Ljava/lang/String;", false)
         }
     }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/UnaryMinus.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/UnaryMinus.kt
index 1d4040d201e..88adc938b9f 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/UnaryMinus.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/UnaryMinus.kt
@@ -23,7 +23,7 @@ import org.jetbrains.kotlin.codegen.CallableMethod
 public class UnaryMinus : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod): Callable {
-        return createUnaryCallable(method, numberFunctionOperandType(method.returnType), needPrimitiveCheck = true) {
+        return createUnaryIntrinsicCallable(method, numberFunctionOperandType(method.returnType), needPrimitiveCheck = true) {
             it.neg(returnType)
         }
     }
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/UnaryPlus.kt b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/UnaryPlus.kt
index 650c8e0f0bb..8f721f0680b 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/UnaryPlus.kt
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/intrinsics/UnaryPlus.kt
@@ -22,7 +22,7 @@ import org.jetbrains.kotlin.codegen.CallableMethod
 public class UnaryPlus : IntrinsicMethod() {
 
     override fun toCallable(method: CallableMethod): Callable {
-        return createUnaryCallable(method, needPrimitiveCheck = true) {
+        return createUnaryIntrinsicCallable(method, needPrimitiveCheck = true) {
             //nothing
         }
     }