diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/IrClass.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/IrClass.kt
index dcf9a471979..86411fcc5ff 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/IrClass.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/IrClass.kt
@@ -35,6 +35,7 @@ interface IrClass : IrSymbolDeclaration<IrClassSymbol>, IrDeclarationContainer,
     val isInner: Boolean
     val isData: Boolean
     val isExternal: Boolean
+    val isInline: Boolean
 
     val superTypes: MutableList<IrType>
 
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt
index d1dc13728cf..9f488cd01d9 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/impl/IrClassImpl.kt
@@ -43,7 +43,8 @@ class IrClassImpl(
     override val isCompanion: Boolean,
     override val isInner: Boolean,
     override val isData: Boolean,
-    override val isExternal: Boolean
+    override val isExternal: Boolean,
+    override val isInline: Boolean
 ) :
     IrDeclarationBase(startOffset, endOffset, origin),
     IrClass {
@@ -61,7 +62,8 @@ class IrClassImpl(
                 isCompanion = symbol.descriptor.isCompanionObject,
                 isInner = symbol.descriptor.isInner,
                 isData = symbol.descriptor.isData,
-                isExternal = symbol.descriptor.isEffectivelyExternal()
+                isExternal = symbol.descriptor.isEffectivelyExternal(),
+                isInline = symbol.descriptor.isInline
             )
 
     constructor(
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/lazy/IrLazyClass.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/lazy/IrLazyClass.kt
index fceb7d14bc2..d6510bdec68 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/lazy/IrLazyClass.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations/lazy/IrLazyClass.kt
@@ -34,6 +34,7 @@ class IrLazyClass(
     override val isInner: Boolean,
     override val isData: Boolean,
     override val isExternal: Boolean,
+    override val isInline: Boolean,
     stubGenerator: DeclarationStubGenerator,
     typeTranslator: TypeTranslator
 ) :
@@ -56,6 +57,7 @@ class IrLazyClass(
                 isInner = symbol.descriptor.isInner,
                 isData = symbol.descriptor.isData,
                 isExternal = symbol.descriptor.isEffectivelyExternal(),
+                isInline = symbol.descriptor.isInline,
                 stubGenerator = stubGenerator,
                 typeTranslator = TypeTranslator
             )
diff --git a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt
index 736a5bc7342..db2e347c87a 100644
--- a/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt
+++ b/compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util/RenderIrElement.kt
@@ -139,7 +139,8 @@ class RenderIrElementVisitor : IrElementVisitor<String, Nothing?> {
             "companion".takeIf { isCompanion },
             "inner".takeIf { isInner },
             "data".takeIf { isData },
-            "external".takeIf { isExternal }
+            "external".takeIf { isExternal },
+            "inline".takeIf { isInline }
         )
 
     override fun visitTypeAlias(declaration: IrTypeAlias, data: Nothing?): String =
diff --git a/compiler/testData/ir/irText/classes/inlineClass.kt b/compiler/testData/ir/irText/classes/inlineClass.kt
new file mode 100644
index 00000000000..7e09b3520cd
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/inlineClass.kt
@@ -0,0 +1,3 @@
+// !LANGUAGE: +InlineClasses
+
+inline class Test(val x: Int)
\ No newline at end of file
diff --git a/compiler/testData/ir/irText/classes/inlineClass.txt b/compiler/testData/ir/irText/classes/inlineClass.txt
new file mode 100644
index 00000000000..b8ebb160bb7
--- /dev/null
+++ b/compiler/testData/ir/irText/classes/inlineClass.txt
@@ -0,0 +1,19 @@
+FILE fqName:<root> fileName:/inlineClass.kt
+  CLASS CLASS name:Test modality:FINAL visibility:public flags:inline superTypes:[kotlin.Any]
+    $this: VALUE_PARAMETER INSTANCE_RECEIVER name:<this> type:Test flags:
+    CONSTRUCTOR visibility:public <> (x:kotlin.Int) returnType:Test flags:primary
+      VALUE_PARAMETER name:x index:0 type:kotlin.Int flags:
+      BLOCK_BODY
+        DELEGATING_CONSTRUCTOR_CALL 'constructor Any()'
+        INSTANCE_INITIALIZER_CALL classDescriptor='Test'
+    PROPERTY name:x visibility:public modality:FINAL flags:val
+      FIELD PROPERTY_BACKING_FIELD name:x type:kotlin.Int visibility:public flags:final
+        EXPRESSION_BODY
+          GET_VAR 'value-parameter x: Int' type=kotlin.Int origin=INITIALIZE_PROPERTY_FROM_PARAMETER
+      FUN DEFAULT_PROPERTY_ACCESSOR name:<get-x> visibility:public modality:FINAL <> ($this:Test) returnType:kotlin.Int flags:
+        correspondingProperty: PROPERTY name:x visibility:public modality:FINAL flags:val
+        $this: VALUE_PARAMETER name:<this> type:Test flags:
+        BLOCK_BODY
+          RETURN type=kotlin.Nothing from='<get-x>(): Int'
+            GET_FIELD 'x: Int' type=kotlin.Int origin=null
+              receiver: GET_VAR 'this@Test: Test' type=Test origin=null
diff --git a/compiler/testData/ir/irText/expressions/signedToUnsignedConversions_test.txt b/compiler/testData/ir/irText/expressions/signedToUnsignedConversions_test.txt
index 7bab93b3b0d..e771110a1ab 100644
--- a/compiler/testData/ir/irText/expressions/signedToUnsignedConversions_test.txt
+++ b/compiler/testData/ir/irText/expressions/signedToUnsignedConversions_test.txt
@@ -99,35 +99,35 @@ FILE fqName:<root> fileName:/signedToUnsignedConversions_test.kt
     BLOCK_BODY
       CALL 'takeUByte(UByte): Unit' type=kotlin.Unit origin=null
         u: TYPE_OP type=kotlin.UByte origin=IMPLICIT_INTEGER_COERCION typeOperand=kotlin.UByte
-          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UByte modality:FINAL visibility:public flags: superTypes:[kotlin.Comparable<kotlin.UByte>]
+          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UByte modality:FINAL visibility:public flags:inline superTypes:[kotlin.Comparable<kotlin.UByte>]
           CALL '<get-IMPLICIT_INT>(): Int' type=kotlin.Int origin=GET_PROPERTY
       CALL 'takeUByte(UByte): Unit' type=kotlin.Unit origin=null
         u: TYPE_OP type=kotlin.UByte origin=IMPLICIT_INTEGER_COERCION typeOperand=kotlin.UByte
-          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UByte modality:FINAL visibility:public flags: superTypes:[kotlin.Comparable<kotlin.UByte>]
+          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UByte modality:FINAL visibility:public flags:inline superTypes:[kotlin.Comparable<kotlin.UByte>]
           CALL '<get-EXPLICIT_INT>(): Int' type=kotlin.Int origin=GET_PROPERTY
       CALL 'takeUShort(UShort): Unit' type=kotlin.Unit origin=null
         u: TYPE_OP type=kotlin.UShort origin=IMPLICIT_INTEGER_COERCION typeOperand=kotlin.UShort
-          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UShort modality:FINAL visibility:public flags: superTypes:[kotlin.Comparable<kotlin.UShort>]
+          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UShort modality:FINAL visibility:public flags:inline superTypes:[kotlin.Comparable<kotlin.UShort>]
           CALL '<get-IMPLICIT_INT>(): Int' type=kotlin.Int origin=GET_PROPERTY
       CALL 'takeUShort(UShort): Unit' type=kotlin.Unit origin=null
         u: TYPE_OP type=kotlin.UShort origin=IMPLICIT_INTEGER_COERCION typeOperand=kotlin.UShort
-          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UShort modality:FINAL visibility:public flags: superTypes:[kotlin.Comparable<kotlin.UShort>]
+          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UShort modality:FINAL visibility:public flags:inline superTypes:[kotlin.Comparable<kotlin.UShort>]
           CALL '<get-BIGGER_THAN_UBYTE>(): Int' type=kotlin.Int origin=GET_PROPERTY
       CALL 'takeUInt(UInt): Unit' type=kotlin.Unit origin=null
         u: TYPE_OP type=kotlin.UInt origin=IMPLICIT_INTEGER_COERCION typeOperand=kotlin.UInt
-          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UInt modality:FINAL visibility:public flags: superTypes:[kotlin.Comparable<kotlin.UInt>]
+          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UInt modality:FINAL visibility:public flags:inline superTypes:[kotlin.Comparable<kotlin.UInt>]
           CALL '<get-IMPLICIT_INT>(): Int' type=kotlin.Int origin=GET_PROPERTY
       CALL 'takeULong(ULong): Unit' type=kotlin.Unit origin=null
         u: TYPE_OP type=kotlin.ULong origin=IMPLICIT_INTEGER_COERCION typeOperand=kotlin.ULong
-          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:ULong modality:FINAL visibility:public flags: superTypes:[kotlin.Comparable<kotlin.ULong>]
+          typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:ULong modality:FINAL visibility:public flags:inline superTypes:[kotlin.Comparable<kotlin.ULong>]
           CALL '<get-IMPLICIT_INT>(): Int' type=kotlin.Int origin=GET_PROPERTY
       CALL 'takeUBytes(vararg UByte): Unit' type=kotlin.Unit origin=null
         u: VARARG type=kotlin.UByteArray varargElementType=kotlin.UByte
           TYPE_OP type=kotlin.UByte origin=IMPLICIT_INTEGER_COERCION typeOperand=kotlin.UByte
-            typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UByte modality:FINAL visibility:public flags: superTypes:[kotlin.Comparable<kotlin.UByte>]
+            typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UByte modality:FINAL visibility:public flags:inline superTypes:[kotlin.Comparable<kotlin.UByte>]
             CALL '<get-IMPLICIT_INT>(): Int' type=kotlin.Int origin=GET_PROPERTY
           TYPE_OP type=kotlin.UByte origin=IMPLICIT_INTEGER_COERCION typeOperand=kotlin.UByte
-            typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UByte modality:FINAL visibility:public flags: superTypes:[kotlin.Comparable<kotlin.UByte>]
+            typeOperand: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:UByte modality:FINAL visibility:public flags:inline superTypes:[kotlin.Comparable<kotlin.UByte>]
             CALL '<get-EXPLICIT_INT>(): Int' type=kotlin.Int origin=GET_PROPERTY
           CONST Byte type=kotlin.UByte value=42
       CALL 'takeLong(Long): Unit' type=kotlin.Unit origin=null
diff --git a/compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java b/compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java
index 22ce50d1118..b6f8de2ee70 100644
--- a/compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java
+++ b/compiler/tests/org/jetbrains/kotlin/ir/IrTextTestCaseGenerated.java
@@ -131,6 +131,11 @@ public class IrTextTestCaseGenerated extends AbstractIrTextTestCase {
             runTest("compiler/testData/ir/irText/classes/initVar.kt");
         }
 
+        @TestMetadata("inlineClass.kt")
+        public void testInlineClass() throws Exception {
+            runTest("compiler/testData/ir/irText/classes/inlineClass.kt");
+        }
+
         @TestMetadata("innerClass.kt")
         public void testInnerClass() throws Exception {
             runTest("compiler/testData/ir/irText/classes/innerClass.kt");