diff --git a/llvm/utils/gn/secondary/llvm/tools/llvm-reduce/BUILD.gn b/llvm/utils/gn/secondary/llvm/tools/llvm-reduce/BUILD.gn
index 281a1840ce9b..b76e0311d7fe 100644
--- a/llvm/utils/gn/secondary/llvm/tools/llvm-reduce/BUILD.gn
+++ b/llvm/utils/gn/secondary/llvm/tools/llvm-reduce/BUILD.gn
@@ -10,7 +10,6 @@ executable("llvm-reduce") {
   include_dirs = [ "." ]
   sources = [
     "DeltaManager.cpp",
-    "ReducerWorkItem.cpp",
     "TestRunner.cpp",
     "deltas/Delta.cpp",
     "deltas/ReduceAliases.cpp",
@@ -23,7 +22,6 @@ executable("llvm-reduce") {
     "deltas/ReduceGlobalVarInitializers.cpp",
     "deltas/ReduceGlobalVars.cpp",
     "deltas/ReduceInstructions.cpp",
-    "deltas/ReduceInstructionsMIR.cpp",
     "deltas/ReduceMetadata.cpp",
     "deltas/ReduceModuleData.cpp",
     "deltas/ReduceOperandBundles.cpp",