diff --git a/include/llvm/Bitcode/BitCodes.h b/include/llvm/Bitcode/BitCodes.h
index e47969d8092f0..bf21e146e771d 100644
--- a/include/llvm/Bitcode/BitCodes.h
+++ b/include/llvm/Bitcode/BitCodes.h
@@ -18,7 +18,6 @@
 #ifndef LLVM_BITCODE_BITCODES_H
 #define LLVM_BITCODE_BITCODES_H
 
-#include "llvm/ADT/IntrusiveRefCntPtr.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Support/DataTypes.h"
 #include "llvm/Support/ErrorHandling.h"
diff --git a/include/llvm/Bitcode/BitstreamReader.h b/include/llvm/Bitcode/BitstreamReader.h
index 6d54b343de0cd..3118a2fd6d916 100644
--- a/include/llvm/Bitcode/BitstreamReader.h
+++ b/include/llvm/Bitcode/BitstreamReader.h
@@ -16,7 +16,6 @@
 #define LLVM_BITCODE_BITSTREAMREADER_H
 
 #include "llvm/ADT/ArrayRef.h"
-#include "llvm/ADT/IntrusiveRefCntPtr.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/Bitcode/BitCodes.h"
 #include "llvm/Support/Endian.h"
diff --git a/include/llvm/Support/FileSystem.h b/include/llvm/Support/FileSystem.h
index becb34bee4ae3..ad21d8af66e99 100644
--- a/include/llvm/Support/FileSystem.h
+++ b/include/llvm/Support/FileSystem.h
@@ -27,7 +27,6 @@
 #ifndef LLVM_SUPPORT_FILESYSTEM_H
 #define LLVM_SUPPORT_FILESYSTEM_H
 
-#include "llvm/ADT/IntrusiveRefCntPtr.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/ADT/Twine.h"
@@ -37,6 +36,7 @@
 #include <cassert>
 #include <cstdint>
 #include <ctime>
+#include <memory>
 #include <stack>
 #include <string>
 #include <system_error>