diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/DebugUtils.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/DebugUtils.kt
index 8886bdd59c8..ea3c8545890 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/DebugUtils.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/DebugUtils.kt
@@ -1,6 +1,6 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
- * that can be found in the LICENSE file.
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
 package org.jetbrains.kotlin.backend.konan.llvm
@@ -96,8 +96,8 @@ internal class DebugInfo internal constructor(override val context: Context):Con
  */
 private val NO_SOURCE_FILE = "no source file"
 private fun IrFileEntry.location(offset: Int, offsetToNumber: (Int) -> Int): Int {
-    assert(offset != UNDEFINED_OFFSET)
     // Part "name.isEmpty() || name == NO_SOURCE_FILE" is an awful hack, @minamoto, please fix properly.
+    if (offset == UNDEFINED_OFFSET) return 0
     if (offset == SYNTHETIC_OFFSET || name.isEmpty() || name == NO_SOURCE_FILE) return 1
     // lldb uses 1-based unsigned integers, so 0 is "no-info".
     val result = offsetToNumber(offset) + 1
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt
index 95f8999b47d..3f14c41cc0c 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/IrToBitcode.kt
@@ -1,6 +1,6 @@
 /*
- * Copyright 2010-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
- * that can be found in the LICENSE file.
+ * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
  */
 
 package org.jetbrains.kotlin.backend.konan.llvm
@@ -2167,11 +2167,11 @@ internal class CodeGeneratorVisitor(val context: Context, val lifetimes: Map<IrE
     }
 
     private val IrElement.startLocation: LocationInfo?
-        get() = if (!context.shouldContainLocationDebugInfo() || startOffset == UNDEFINED_OFFSET) null
+        get() = if (!context.shouldContainLocationDebugInfo()) null
             else currentCodeContext.location(startOffset)
 
     private val IrElement.endLocation: LocationInfo?
-        get() = if (!context.shouldContainLocationDebugInfo() || startOffset == UNDEFINED_OFFSET) null
+        get() = if (!context.shouldContainLocationDebugInfo()) null
             else currentCodeContext.location(endOffset)
 
     //-------------------------------------------------------------------------//
@@ -2974,11 +2974,7 @@ private fun Name.debugNameConversion(): Name = when(this) {
 internal class LocationInfo(val scope: DIScopeOpaqueRef,
                             val line: Int,
                             val column: Int,
-                            val inlinedAt: LocationInfo? = null) {
-    init {
-        assert(line != 0)
-    }
-}
+                            val inlinedAt: LocationInfo? = null)
 
 internal fun Context.generateRuntimeConstantsModule() : LLVMModuleRef {
     val llvmModule = LLVMModuleCreateWithNameInContext("constants", llvmContext)!!