diff --git a/compiler/testData/codegen/box/ranges/contains/inCharSequenceIndices.kt b/compiler/testData/codegen/box/ranges/contains/inCharSequenceIndices.kt
new file mode 100644
index 00000000000..b26ebcee65d
--- /dev/null
+++ b/compiler/testData/codegen/box/ranges/contains/inCharSequenceIndices.kt
@@ -0,0 +1,16 @@
+// WITH_RUNTIME
+
+val cs = "123"
+
+val i1 = 1
+
+fun box(): String {
+    // NB partially const-folded in JVM BE
+    if (!(1 in cs.indices)) return "Fail 1 in CharSequence.indices"
+    if (1 !in cs.indices) return "Fail 1 !in CharSequence.indices"
+
+    if (!(i1 in cs.indices)) return "Fail i1 in CharSequence.indices"
+    if (i1 !in cs.indices) return "Fail i1 !in CharSequence.indices"
+
+    return "OK"
+}
diff --git a/compiler/testData/codegen/box/ranges/contains/inCollectionIndices.kt b/compiler/testData/codegen/box/ranges/contains/inCollectionIndices.kt
new file mode 100644
index 00000000000..0ac755d5bcc
--- /dev/null
+++ b/compiler/testData/codegen/box/ranges/contains/inCollectionIndices.kt
@@ -0,0 +1,16 @@
+// WITH_RUNTIME
+
+val xs = listOf(1, 2, 3)
+
+val i1 = 1
+
+fun box(): String {
+    // NB partially const-folded in JVM BE
+    if (!(1 in xs.indices)) return "Fail 1 in Collection.indices"
+    if (1 !in xs.indices) return "Fail 1 !in Collection.indices"
+
+    if (!(i1 in xs.indices)) return "Fail i1 in Collection.indices"
+    if (i1 !in xs.indices) return "Fail i1 !in Collection.indices"
+
+    return "OK"
+}
diff --git a/compiler/testData/codegen/bytecodeText/ranges/inCharSequenceIndices.kt b/compiler/testData/codegen/bytecodeText/ranges/inCharSequenceIndices.kt
new file mode 100644
index 00000000000..e129b4c315c
--- /dev/null
+++ b/compiler/testData/codegen/bytecodeText/ranges/inCharSequenceIndices.kt
@@ -0,0 +1,8 @@
+// WITH_RUNTIME
+
+fun testCharSequence(i: Int, cs: CharSequence) = i in cs.indices
+
+// 0 INVOKESTATIC kotlin/text/StringsKt.getIndices
+// 0 INVOKEVIRTUAL kotlin/ranges/IntRange.contains
+// 1 INVOKEINTERFACE java/lang/CharSequence.length
+
diff --git a/compiler/testData/codegen/bytecodeText/ranges/inCollectionIndices.kt b/compiler/testData/codegen/bytecodeText/ranges/inCollectionIndices.kt
new file mode 100644
index 00000000000..24dd9fa2b2f
--- /dev/null
+++ b/compiler/testData/codegen/bytecodeText/ranges/inCollectionIndices.kt
@@ -0,0 +1,7 @@
+// WITH_RUNTIME
+
+fun testCollection(i: Int, xs: List<Any>) = i in xs.indices
+
+// 0 INVOKESTATIC kotlin/collections/CollectionsKt.getIndices
+// 0 INVOKEVIRTUAL kotlin/ranges/IntRange.contains
+// 1 INVOKEINTERFACE java/util/Collection.size
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 7a1ef6e502d..09613afaeed 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
@@ -13195,6 +13195,18 @@ public class IrBlackBoxCodegenTestGenerated extends AbstractIrBlackBoxCodegenTes
                 doTest(fileName);
             }
 
+            @TestMetadata("inCharSequenceIndices.kt")
+            public void testInCharSequenceIndices() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inCharSequenceIndices.kt");
+                doTest(fileName);
+            }
+
+            @TestMetadata("inCollectionIndices.kt")
+            public void testInCollectionIndices() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inCollectionIndices.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("inComparableRange.kt")
             public void testInComparableRange() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inComparableRange.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
index b6dbac4781f..cb67ff999ad 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
@@ -13195,6 +13195,18 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("inCharSequenceIndices.kt")
+            public void testInCharSequenceIndices() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inCharSequenceIndices.kt");
+                doTest(fileName);
+            }
+
+            @TestMetadata("inCollectionIndices.kt")
+            public void testInCollectionIndices() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inCollectionIndices.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("inComparableRange.kt")
             public void testInComparableRange() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inComparableRange.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/BytecodeTextTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/BytecodeTextTestGenerated.java
index 47edebbed0a..f8d59044bea 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/BytecodeTextTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/BytecodeTextTestGenerated.java
@@ -1865,6 +1865,18 @@ public class BytecodeTextTestGenerated extends AbstractBytecodeTextTest {
             doTest(fileName);
         }
 
+        @TestMetadata("inCharSequenceIndices.kt")
+        public void testInCharSequenceIndices() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/bytecodeText/ranges/inCharSequenceIndices.kt");
+            doTest(fileName);
+        }
+
+        @TestMetadata("inCollectionIndices.kt")
+        public void testInCollectionIndices() throws Exception {
+            String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/bytecodeText/ranges/inCollectionIndices.kt");
+            doTest(fileName);
+        }
+
         @TestMetadata("inComparableRangeLiteral.kt")
         public void testInComparableRangeLiteral() throws Exception {
             String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/bytecodeText/ranges/inComparableRangeLiteral.kt");
diff --git a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
index c828c14de7e..a7e537da218 100644
--- a/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/codegen/LightAnalysisModeTestGenerated.java
@@ -13195,6 +13195,18 @@ public class LightAnalysisModeTestGenerated extends AbstractLightAnalysisModeTes
                 doTest(fileName);
             }
 
+            @TestMetadata("inCharSequenceIndices.kt")
+            public void testInCharSequenceIndices() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inCharSequenceIndices.kt");
+                doTest(fileName);
+            }
+
+            @TestMetadata("inCollectionIndices.kt")
+            public void testInCollectionIndices() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inCollectionIndices.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("inComparableRange.kt")
             public void testInComparableRange() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inComparableRange.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 a8bd14b74dc..14aa8e24245 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
@@ -14803,6 +14803,18 @@ public class JsCodegenBoxTestGenerated extends AbstractJsCodegenBoxTest {
                 doTest(fileName);
             }
 
+            @TestMetadata("inCharSequenceIndices.kt")
+            public void testInCharSequenceIndices() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inCharSequenceIndices.kt");
+                doTest(fileName);
+            }
+
+            @TestMetadata("inCollectionIndices.kt")
+            public void testInCollectionIndices() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inCollectionIndices.kt");
+                doTest(fileName);
+            }
+
             @TestMetadata("inComparableRange.kt")
             public void testInComparableRange() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/contains/inComparableRange.kt");