diff --git a/compiler/testData/codegen/box/casts/isNullablePrimitive.kt b/compiler/testData/codegen/box/casts/isNullablePrimitive.kt
new file mode 100644
index 00000000000..6a820551736
--- /dev/null
+++ b/compiler/testData/codegen/box/casts/isNullablePrimitive.kt
@@ -0,0 +1,48 @@
+fun box(): String {
+    val n: Any? = null
+
+    val intV: Any? = 23
+    val floatV: Any? = 23.4F
+    val doubleV: Any? = 23.45
+    val longV: Any? = 234L
+    val stringV: Any? = "foo"
+    val booleanV: Any? = true
+    val functionV: Any? = { x: Int -> x + 1 }
+
+    if (n !is Int?) return "fail: null !is Int?"
+    if (n !is Float?) return "fail: null !is Float?"
+    if (n !is Double?) return "fail: null !is Double?"
+    if (n !is String?) return "fail: null !is String?"
+    if (n !is Boolean?) return "fail: null !is Boolean?"
+    if (n !is Function1<*, *>?) return "fail: null !is Function?"
+
+    if (n is Int) return "fail: null is Int"
+    if (n is Float) return "fail: null is Float"
+    if (n is Double) return "fail: null is Double"
+    if (n is String) return "fail: null is String"
+    if (n is Boolean) return "fail: null is Boolean"
+    if (n is Function1<*, *>) return "fail: null is Function"
+
+    if (intV !is Int?) return "fail: 23 !is Int?"
+    if (intV is String?) return "fail: 23 is String?"
+
+    if (floatV !is Float?) return "fail: 23.4F !is Float?"
+    if (floatV is String?) return "fail: 23.4F is String?"
+
+    if (doubleV !is Double?) return "fail: 23.45 !is Double?"
+    if (doubleV is String?) return "fail: 23.45 is String?"
+
+    if (longV !is Long?) return "fail: 234L !is Long?"
+    if (longV is String?) return "fail: 234L is String?"
+
+    if (stringV !is String?) return "fail: 'foo' !is String?"
+    if (stringV is Double?) return "fail: 'foo' is Double?"
+
+    if (booleanV !is Boolean?) return "fail: true !is Boolean?"
+    if (booleanV is Double?) return "fail: true is Double?"
+
+    if (functionV !is Function1<*, *>?) return "fail: <function> !is Function?"
+    if (functionV is String?) return "fail: <function> is String?"
+
+    return "OK"
+}
\ No newline at end of file
diff --git a/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java b/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
index bb61108aac8..0607d17ad88 100644
--- a/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests-ir-jvm/tests/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
@@ -2537,6 +2537,12 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             doTest(fileName);
         }
 
+        @TestMetadata("isNullablePrimitive.kt")
+        public void testIsNullablePrimitive() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/casts/isNullablePrimitive.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("lambdaToUnitCast.kt")
         public void testLambdaToUnitCast() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/casts/lambdaToUnitCast.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
index 5b0faa83bc2..70dbdb452b6 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
@@ -2537,6 +2537,12 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             doTest(fileName);
         }
 
+        @TestMetadata("isNullablePrimitive.kt")
+        public void testIsNullablePrimitive() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/casts/isNullablePrimitive.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("lambdaToUnitCast.kt")
         public void testLambdaToUnitCast() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/casts/lambdaToUnitCast.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
index dd3ec546002..fdbc08cca65 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
@@ -2537,6 +2537,12 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
             doTest(fileName);
         }
 
+        @TestMetadata("isNullablePrimitive.kt")
+        public void testIsNullablePrimitive() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/casts/isNullablePrimitive.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("lambdaToUnitCast.kt")
         public void testLambdaToUnitCast() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/casts/lambdaToUnitCast.kt");
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
index 41799b47748..a71dd67d870 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
@@ -2957,6 +2957,12 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             throw new AssertionError("Looks like this test can be unmuted. Remove IGNORE_BACKEND directive for that.");
         }
 
+        @TestMetadata("isNullablePrimitive.kt")
+        public void testIsNullablePrimitive() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/casts/isNullablePrimitive.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("lambdaToUnitCast.kt")
         public void testLambdaToUnitCast() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/casts/lambdaToUnitCast.kt");