diff --git a/compiler/frontend/src/org/jetbrains/kotlin/config/CommonConfigurationKeys.kt b/compiler/frontend/src/org/jetbrains/kotlin/config/CommonConfigurationKeys.kt
index b2e8a528895..26037f867d4 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/config/CommonConfigurationKeys.kt
+++ b/compiler/frontend/src/org/jetbrains/kotlin/config/CommonConfigurationKeys.kt
@@ -57,6 +57,15 @@ object CommonConfigurationKeys {
     @JvmField
     val PHASES_TO_DUMP_STATE = CompilerConfigurationKey.create<Set<String>>("backend phases where we dump compiler state both before and after the phase")
 
+    @JvmField
+    val PHASES_TO_VALIDATE_BEFORE = CompilerConfigurationKey.create<Set<String>>("backend phases where we validate Ir before the phase")
+
+    @JvmField
+    val PHASES_TO_VALIDATE_AFTER = CompilerConfigurationKey.create<Set<String>>("backend phases where we validate Ir after the phase")
+
+    @JvmField
+    val PHASES_TO_VALIDATE = CompilerConfigurationKey.create<Set<String>>("backend phases where we validate Ir both before and after the phase")
+
     @JvmField
     val VERBOSE_PHASES = CompilerConfigurationKey.create<Set<String>>("verbose backend phases")
 
diff --git a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsLoweringPhases.kt b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsLoweringPhases.kt
index 1650c2524c1..2e5ece31a0b 100644
--- a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsLoweringPhases.kt
+++ b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsLoweringPhases.kt
@@ -303,25 +303,6 @@ private val CallsLoweringPhase = makeJsPhase(
     description = "Handle intrinsics"
 )
 
-object IrValidationPhase : CompilerPhase<CommonBackendContext, IrModuleFragment> {
-
-    private val validatorConfig = IrValidatorConfig(
-        abortOnError = true,
-        ensureAllNodesAreDifferent = true,
-        checkTypes = false,
-        checkDescriptors = false
-    )
-
-    override val name = "IrValidator"
-    override val description = "Make sure that various Ir Invariants are met"
-    override val prerequisite = emptySet()
-    override fun invoke(context: CommonBackendContext, input: IrModuleFragment): IrModuleFragment {
-        IrValidator(context, validatorConfig).let { input.acceptVoid(it) }
-        input.checkDeclarationParents()
-        return input
-    }
-}
-
 object IrModuleEndPhase : CompilerPhase<BackendContext, IrModuleFragment> {
     override val name = "IrModuleFragment"
     override val description = "State at end of IrModuleFragment lowering"
@@ -345,7 +326,6 @@ val jsPhases = listOf(
     ModuleCopyingPhase,
     FunctionInliningPhase,
     RemoveInlineFunctionsWithReifiedTypeParametersLoweringPhase,
-    IrValidationPhase,
     ThrowableSuccessorsLoweringPhase,
     TailrecLoweringPhase,
     UnitMaterializationLoweringPhase,
@@ -357,7 +337,6 @@ val jsPhases = listOf(
     LocalDeclarationsLoweringPhase,
     InnerClassesLoweringPhase,
     InnerClassConstructorCallsLoweringPhase,
-    IrValidationPhase,
     SuspendFunctionsLoweringPhase,
     CallableReferenceLoweringPhase,
     DefaultArgumentStubGeneratorPhase,
@@ -371,13 +350,11 @@ val jsPhases = listOf(
     TypeOperatorLoweringPhase,
     SecondaryCtorLoweringPhase,
     InlineClassLoweringPhase,
-    IrValidationPhase,
     AutoboxingTransformerPhase,
     BlockDecomposerLoweringPhase,
     ClassReferenceLoweringPhase,
     PrimitiveCompanionLoweringPhase,
     ConstLoweringPhase,
-    IrValidationPhase,
     CallsLoweringPhase,
     IrModuleEndPhase,
     IrToJsPhase
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/BasicIrBoxTest.kt b/js/js.tests/test/org/jetbrains/kotlin/js/test/BasicIrBoxTest.kt
index c7aff732741..27d2100c7de 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/BasicIrBoxTest.kt
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/BasicIrBoxTest.kt
@@ -136,6 +136,14 @@ abstract class BasicIrBoxTest(
             .filterNot { it.virtualFilePath.contains(BasicBoxTest.COMMON_FILES_DIR_PATH) }
 
 //        config.configuration.put(CommonConfigurationKeys.EXCLUDED_ELEMENTS_FROM_DUMPING, setOf("<JS_IR_RUNTIME>"))
+        config.configuration.put(
+            CommonConfigurationKeys.PHASES_TO_VALIDATE_AFTER,
+            setOf(
+                "RemoveInlineFunctionsWithReifiedTypeParametersLowering",
+                "InnerClassConstructorCallsLowering",
+                "InlineClassLowering", "ConstLowering"
+            )
+        )
 
         val runtimeConfiguration = config.configuration.copy()
 
@@ -165,6 +173,7 @@ abstract class BasicIrBoxTest(
 //        config.configuration.put(CommonConfigurationKeys.PHASES_TO_DUMP_STATE, setOf("UnitMaterializationLowering"))
 //        config.configuration.put(CommonConfigurationKeys.PHASES_TO_DUMP_STATE_BEFORE, setOf("ReturnableBlockLowering"))
 //        config.configuration.put(CommonConfigurationKeys.PHASES_TO_DUMP_STATE_AFTER, setOf("MultipleCatchesLowering"))
+//        config.configuration.put(CommonConfigurationKeys.PHASES_TO_VALIDATE, setOf("ALL"))
 
         val result = compile(
             config.project,