diff --git a/clang/lib/CodeGen/BackendConsumer.h b/clang/lib/CodeGen/BackendConsumer.h
index f9edbe901bb850..7dce21e743f72b 100644
--- a/clang/lib/CodeGen/BackendConsumer.h
+++ b/clang/lib/CodeGen/BackendConsumer.h
@@ -34,7 +34,6 @@ class BackendConsumer : public ASTConsumer {
   const CodeGenOptions &CodeGenOpts;
   const TargetOptions &TargetOpts;
   const LangOptions &LangOpts;
-  const FileManager &FileMgr;
   std::unique_ptr<raw_pwrite_stream> AsmOutStream;
   ASTContext *Context;
   IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS;
diff --git a/clang/lib/CodeGen/CodeGenAction.cpp b/clang/lib/CodeGen/CodeGenAction.cpp
index 0255f05b1f90e5..fd3ece1695f71f 100644
--- a/clang/lib/CodeGen/CodeGenAction.cpp
+++ b/clang/lib/CodeGen/CodeGenAction.cpp
@@ -120,7 +120,7 @@ BackendConsumer::BackendConsumer(
     CoverageSourceInfo *CoverageInfo)
     : Diags(Diags), Action(Action), HeaderSearchOpts(HeaderSearchOpts),
       CodeGenOpts(CodeGenOpts), TargetOpts(TargetOpts), LangOpts(LangOpts),
-      FileMgr(FileMgr), AsmOutStream(std::move(OS)), Context(nullptr), FS(VFS),
+      AsmOutStream(std::move(OS)), Context(nullptr), FS(VFS),
       LLVMIRGeneration("irgen", "LLVM IR Generation Time"),
       LLVMIRGenerationRefCount(0),
       Gen(CreateLLVMCodeGen(Diags, InFile, std::move(VFS), HeaderSearchOpts,
@@ -145,7 +145,7 @@ BackendConsumer::BackendConsumer(
     CoverageSourceInfo *CoverageInfo)
     : Diags(Diags), Action(Action), HeaderSearchOpts(HeaderSearchOpts),
       CodeGenOpts(CodeGenOpts), TargetOpts(TargetOpts), LangOpts(LangOpts),
-      FileMgr(FileMgr), Context(nullptr), FS(VFS),
+      Context(nullptr), FS(VFS),
       LLVMIRGeneration("irgen", "LLVM IR Generation Time"),
       LLVMIRGenerationRefCount(0),
       Gen(CreateLLVMCodeGen(Diags, "", std::move(VFS), HeaderSearchOpts, PPOpts,