diff --git a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java
index 14cc6ac517f..f59fdbf70bb 100644
--- a/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java
+++ b/compiler/fir/fir2ir/tests-gen/org/jetbrains/kotlin/codegen/ir/FirBlackBoxCodegenTestGenerated.java
@@ -32388,6 +32388,11 @@ public class FirBlackBoxCodegenTestGenerated extends AbstractFirBlackBoxCodegenT
             runTest("compiler/testData/codegen/box/unsignedTypes/kt25784.kt");
         }
 
+        @TestMetadata("kt30402.kt")
+        public void testKt30402() throws Exception {
+            runTest("compiler/testData/codegen/box/unsignedTypes/kt30402.kt");
+        }
+
         @TestMetadata("kt43286.kt")
         public void testKt43286() throws Exception {
             runTest("compiler/testData/codegen/box/unsignedTypes/kt43286.kt");
diff --git a/compiler/testData/codegen/box/unsignedTypes/kt30402.kt b/compiler/testData/codegen/box/unsignedTypes/kt30402.kt
new file mode 100644
index 00000000000..8c2e612b4cb
--- /dev/null
+++ b/compiler/testData/codegen/box/unsignedTypes/kt30402.kt
@@ -0,0 +1,14 @@
+// WITH_RUNTIME
+// IGNORE_BACKEND: JVM
+// IGNORE_BACKEND: JS_IR
+// IGNORE_LIGHT_ANALYSIS
+
+val unsigned = 0x8fffffffU
+val good = "123 " + unsigned
+val bad = "123 " + 0x8fffffffU
+
+fun box(): String {
+    if (good != "123 2415919103") return "good: '$good'"
+    if (bad != "123 2415919103") return "bad: '$bad'"
+    return "OK"
+}
\ No newline at end of file
diff --git a/compiler/tests-gen/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java b/compiler/tests-gen/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
index aa9727d8756..06d5a75b64f 100644
--- a/compiler/tests-gen/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
+++ b/compiler/tests-gen/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
@@ -32754,6 +32754,11 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
             runTest("compiler/testData/codegen/box/unsignedTypes/kt25784.kt");
         }
 
+        @TestMetadata("kt30402.kt")
+        public void testKt30402() throws Exception {
+            runTest("compiler/testData/codegen/box/unsignedTypes/kt30402.kt");
+        }
+
         @TestMetadata("kt43286.kt")
         public void testKt43286() throws Exception {
             runTest("compiler/testData/codegen/box/unsignedTypes/kt43286.kt");
diff --git a/compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java b/compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
index d4afe6337ce..af75f58cbae 100644
--- a/compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
+++ b/compiler/tests-gen/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
@@ -30280,6 +30280,11 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
     @TestDataPath("$PROJECT_ROOT")
     @RunWith(JUnit3RunnerWithInners.class)
     public static class UnsignedTypes extends AbstractLightAnalysisModeTest {
+        @TestMetadata("kt30402.kt")
+        public void ignoreKt30402() throws Exception {
+            runTest("compiler/testData/codegen/box/unsignedTypes/kt30402.kt");
+        }
+
         private void runTest(String testDataFilePath) throws Exception {
             KotlinTestUtils.runTest(this::doTest, TargetBackend.JVM, testDataFilePath);
         }
diff --git a/compiler/tests-gen/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java b/compiler/tests-gen/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
index 637ce137d5b..973aed6b420 100644
--- a/compiler/tests-gen/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
+++ b/compiler/tests-gen/org/jetbrains/kotlin/codegen/ir/IrBlackBoxCodegenTestGenerated.java
@@ -32388,6 +32388,11 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
             runTest("compiler/testData/codegen/box/unsignedTypes/kt25784.kt");
         }
 
+        @TestMetadata("kt30402.kt")
+        public void testKt30402() throws Exception {
+            runTest("compiler/testData/codegen/box/unsignedTypes/kt30402.kt");
+        }
+
         @TestMetadata("kt43286.kt")
         public void testKt43286() throws Exception {
             runTest("compiler/testData/codegen/box/unsignedTypes/kt43286.kt");
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/es6/semantics/IrJsCodegenBoxES6TestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/es6/semantics/IrJsCodegenBoxES6TestGenerated.java
index 5e88c866dd6..2edd845b43e 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/es6/semantics/IrJsCodegenBoxES6TestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/es6/semantics/IrJsCodegenBoxES6TestGenerated.java
@@ -26199,6 +26199,11 @@ public class IrJsCodegenBoxES6TestGenerated extends AbstractIrJsCodegenBoxES6Tes
             runTest("compiler/testData/codegen/box/unsignedTypes/kt25784.kt");
         }
 
+        @TestMetadata("kt30402.kt")
+        public void testKt30402() throws Exception {
+            runTest("compiler/testData/codegen/box/unsignedTypes/kt30402.kt");
+        }
+
         @TestMetadata("kt43286.kt")
         public void testKt43286() throws Exception {
             runTest("compiler/testData/codegen/box/unsignedTypes/kt43286.kt");
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java
index 6bf98298989..c1f816bd5de 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/ir/semantics/IrJsCodegenBoxTestGenerated.java
@@ -26199,6 +26199,11 @@ public class IrJsCodegenBoxTestGenerated extends AbstractIrJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/unsignedTypes/kt25784.kt");
         }
 
+        @TestMetadata("kt30402.kt")
+        public void testKt30402() throws Exception {
+            runTest("compiler/testData/codegen/box/unsignedTypes/kt30402.kt");
+        }
+
         @TestMetadata("kt43286.kt")
         public void testKt43286() throws Exception {
             runTest("compiler/testData/codegen/box/unsignedTypes/kt43286.kt");
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
index fb64cbbe42e..70cc075d31d 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/semantics/JsCodegenBoxTestGenerated.java
@@ -26199,6 +26199,11 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
             runTest("compiler/testData/codegen/box/unsignedTypes/kt25784.kt");
         }
 
+        @TestMetadata("kt30402.kt")
+        public void testKt30402() throws Exception {
+            runTest("compiler/testData/codegen/box/unsignedTypes/kt30402.kt");
+        }
+
         @TestMetadata("kt43286.kt")
         public void testKt43286() throws Exception {
             runTest("compiler/testData/codegen/box/unsignedTypes/kt43286.kt");
diff --git a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/wasm/semantics/IrCodegenBoxWasmTestGenerated.java b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/wasm/semantics/IrCodegenBoxWasmTestGenerated.java
index 5f97f29546a..6bee512e911 100644
--- a/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/wasm/semantics/IrCodegenBoxWasmTestGenerated.java
+++ b/js/js.tests/tests-gen/org/jetbrains/kotlin/js/test/wasm/semantics/IrCodegenBoxWasmTestGenerated.java
@@ -14442,6 +14442,11 @@ public class IrCodegenBoxWasmTestGenerated extends AbstractIrCodegenBoxWasmTest
             runTest("compiler/testData/codegen/box/unsignedTypes/iterateOverListOfBoxedUnsignedValues.kt");
         }
 
+        @TestMetadata("kt30402.kt")
+        public void testKt30402() throws Exception {
+            runTest("compiler/testData/codegen/box/unsignedTypes/kt30402.kt");
+        }
+
         @TestMetadata("kt43286.kt")
         public void testKt43286() throws Exception {
             runTest("compiler/testData/codegen/box/unsignedTypes/kt43286.kt");