diff --git a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/backend/BlackBoxCodegenSuppressor.kt b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/backend/BlackBoxCodegenSuppressor.kt
index 81b035dd86a..86ad301bce4 100644
--- a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/backend/BlackBoxCodegenSuppressor.kt
+++ b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/backend/BlackBoxCodegenSuppressor.kt
@@ -9,7 +9,7 @@ import org.jetbrains.kotlin.test.TargetBackend
 import org.jetbrains.kotlin.test.WrappedException
 import org.jetbrains.kotlin.test.bind
 import org.jetbrains.kotlin.test.directives.CodegenTestDirectives
-import org.jetbrains.kotlin.test.directives.extractIgnoredDirectivesForTargetBackend
+import org.jetbrains.kotlin.test.directives.extractIgnoredDirectiveForTargetBackend
 import org.jetbrains.kotlin.test.directives.model.DirectivesContainer
 import org.jetbrains.kotlin.test.directives.model.ValueDirective
 import org.jetbrains.kotlin.test.model.AfterAnalysisChecker
@@ -18,7 +18,7 @@ import org.jetbrains.kotlin.test.services.*
 
 class BlackBoxCodegenSuppressor(
     testServices: TestServices,
-    val customIgnoreDirective: ValueDirective<TargetBackend>? = null
+    private val customIgnoreDirective: ValueDirective<TargetBackend>? = null
 ) : AfterAnalysisChecker(testServices) {
     override val directiveContainers: List<DirectivesContainer>
         get() = listOf(CodegenTestDirectives)
@@ -29,37 +29,32 @@ class BlackBoxCodegenSuppressor(
     override fun suppressIfNeeded(failedAssertions: List<WrappedException>): List<WrappedException> {
         val suppressionChecker = testServices.codegenSuppressionChecker
         val moduleStructure = testServices.moduleStructure
-        val ignoreDirectives = suppressionChecker.extractIgnoreDirectives(moduleStructure.modules.first()) ?: return failedAssertions
-        return suppressionChecker.processAllDirectives(ignoreDirectives) { ignoreDirective, suppressionResult ->
+        val ignoreDirective = suppressionChecker.extractIgnoreDirective(moduleStructure.modules.first()) ?: return failedAssertions
+        return suppressionChecker.processAllDirectives(listOf(ignoreDirective)) { directive, suppressionResult ->
             listOfNotNull(
                 suppressionChecker.processMutedTest(
                     failed = failedAssertions.isNotEmpty(),
-                    ignoreDirective,
+                    directive,
                     suppressionResult,
                 )?.wrap()
             )
         } ?: failedAssertions
     }
 
-    class SuppressionChecker(val testServices: TestServices, val customIgnoreDirective: ValueDirective<TargetBackend>?) : TestService {
-        fun extractIgnoreDirectives(module: TestModule): List<ValueDirective<TargetBackend>>? {
+    class SuppressionChecker(
+        val testServices: TestServices,
+        private val customIgnoreDirective: ValueDirective<TargetBackend>?
+    ) : TestService {
+        fun extractIgnoreDirective(module: TestModule): ValueDirective<TargetBackend>? {
             val targetBackend = testServices.defaultsProvider.defaultTargetBackend ?: module.targetBackend ?: return null
-            return extractIgnoredDirectivesForTargetBackend(module, targetBackend, customIgnoreDirective)
+            return extractIgnoredDirectiveForTargetBackend(module, targetBackend, customIgnoreDirective)
         }
 
         fun failuresInModuleAreIgnored(module: TestModule): Boolean {
-            val ignoreDirective = extractIgnoreDirectives(module) ?: return false
+            val ignoreDirective = extractIgnoreDirective(module) ?: return false
             return failuresInModuleAreIgnored(module, ignoreDirective).testMuted
         }
 
-        private fun failuresInModuleAreIgnored(module: TestModule, ignoreDirectives: List<ValueDirective<TargetBackend>>): SuppressionResult {
-            for (ignoreDirective in ignoreDirectives) {
-                val result = failuresInModuleAreIgnored(module, ignoreDirective)
-                if (result.testMuted) return result
-            }
-            return SuppressionResult.NO_MUTE
-        }
-
         fun failuresInModuleAreIgnored(module: TestModule, ignoreDirective: ValueDirective<TargetBackend>): SuppressionResult {
             val ignoredBackends = module.directives[ignoreDirective]
 
diff --git a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/directives/CodegenTestDirectives.kt b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/directives/CodegenTestDirectives.kt
index 564a4c05cb8..869b225fce4 100644
--- a/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/directives/CodegenTestDirectives.kt
+++ b/compiler/tests-common-new/tests/org/jetbrains/kotlin/test/directives/CodegenTestDirectives.kt
@@ -6,7 +6,6 @@
 package org.jetbrains.kotlin.test.directives
 
 import org.jetbrains.kotlin.backend.common.phaser.AnyNamedPhase
-import org.jetbrains.kotlin.test.FirParser
 import org.jetbrains.kotlin.test.TargetBackend
 import org.jetbrains.kotlin.test.backend.TargetInliner
 import org.jetbrains.kotlin.test.backend.handlers.*
@@ -15,7 +14,6 @@ import org.jetbrains.kotlin.test.directives.model.DirectiveApplicability.File
 import org.jetbrains.kotlin.test.directives.model.DirectiveApplicability.Global
 import org.jetbrains.kotlin.test.directives.model.SimpleDirectivesContainer
 import org.jetbrains.kotlin.test.directives.model.ValueDirective
-import org.jetbrains.kotlin.test.directives.model.singleOrZeroValue
 import org.jetbrains.kotlin.test.model.FrontendKinds
 import org.jetbrains.kotlin.test.model.TestModule
 
@@ -35,11 +33,6 @@ object CodegenTestDirectives : SimpleDirectivesContainer() {
         applicability = Global
     )
 
-    val IGNORE_BACKEND_K2_LIGHT_TREE by enumDirective<TargetBackend>(
-        description = "Ignore specific backend if test uses K2 frontend in Light tree mode",
-        applicability = Global
-    )
-
     val IGNORE_BACKEND_MULTI_MODULE by enumDirective<TargetBackend>(
         description = "Ignore failures of multimodule test on target backend",
         applicability = Global
@@ -251,43 +244,26 @@ object CodegenTestDirectives : SimpleDirectivesContainer() {
     )
 }
 
-fun extractIgnoredDirectivesForTargetBackend(
+fun extractIgnoredDirectiveForTargetBackend(
     module: TestModule,
     targetBackend: TargetBackend,
     customIgnoreDirective: ValueDirective<TargetBackend>? = null
-): List<ValueDirective<TargetBackend>> {
-    val specificIgnoreDirectives = when (module.frontendKind) {
-        FrontendKinds.ClassicFrontend -> listOf(CodegenTestDirectives.IGNORE_BACKEND_K1)
-        FrontendKinds.FIR -> listOfNotNull(
-            CodegenTestDirectives.IGNORE_BACKEND_K2,
-            CodegenTestDirectives.IGNORE_BACKEND_K2_LIGHT_TREE.takeIf {
-                module.directives.singleOrZeroValue(FirDiagnosticsDirectives.FIR_PARSER) == FirParser.LightTree
+): ValueDirective<TargetBackend>? =
+    when (module.frontendKind) {
+        FrontendKinds.ClassicFrontend -> CodegenTestDirectives.IGNORE_BACKEND_K1
+        FrontendKinds.FIR -> CodegenTestDirectives.IGNORE_BACKEND_K2
+        else -> null
+    }?.let { specificIgnoreDirective ->
+        when {
+            customIgnoreDirective != null -> customIgnoreDirective
+            !module.directives.contains(specificIgnoreDirective) -> CodegenTestDirectives.IGNORE_BACKEND
+            else -> {
+                val inCommonIgnored = module.directives[CodegenTestDirectives.IGNORE_BACKEND].let { targetBackend in it || TargetBackend.ANY in it }
+                val inSpecificIgnored = module.directives[specificIgnoreDirective].let { targetBackend in it || TargetBackend.ANY in it }
+                if (inCommonIgnored && inSpecificIgnored) {
+                    throw AssertionError("Both, IGNORE_BACKEND and ${specificIgnoreDirective.name} contain target backend ${targetBackend.name}. Please remove one of them.")
+                }
+                if (inCommonIgnored) CodegenTestDirectives.IGNORE_BACKEND else specificIgnoreDirective
             }
-        )
-        else -> return emptyList()
-    }
-    val result = specificIgnoreDirectives.mapNotNull {
-        extractIgnoredDirectiveForTargetBackendForSpecificIgnoreDirective(module, targetBackend, it, customIgnoreDirective)
-    }
-    return result.takeIf { it.isNotEmpty() } ?: listOf(CodegenTestDirectives.IGNORE_BACKEND)
-}
-
-private fun extractIgnoredDirectiveForTargetBackendForSpecificIgnoreDirective(
-    module: TestModule,
-    targetBackend: TargetBackend,
-    specificIgnoreDirective: ValueDirective<TargetBackend>,
-    customIgnoreDirective: ValueDirective<TargetBackend>?
-): ValueDirective<TargetBackend>? {
-    return when {
-        customIgnoreDirective != null -> customIgnoreDirective
-        !module.directives.contains(specificIgnoreDirective) -> null//CodegenTestDirectives.IGNORE_BACKEND
-        else -> {
-            val inCommonIgnored = module.directives[CodegenTestDirectives.IGNORE_BACKEND].let { targetBackend in it || TargetBackend.ANY in it }
-            val inSpecificIgnored = module.directives[specificIgnoreDirective].let { targetBackend in it || TargetBackend.ANY in it }
-            if (inCommonIgnored && inSpecificIgnored) {
-                throw AssertionError("Both, IGNORE_BACKEND and ${specificIgnoreDirective.name} contain target backend ${targetBackend.name}. Please remove one of them.")
-            }
-            if (inCommonIgnored) null else specificIgnoreDirective
         }
     }
-}