diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h b/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h
index 27e6ff6036d5..532ed96c2689 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfFile.h
@@ -32,6 +32,7 @@ class LexicalScope;
 class StringRef;
 class DwarfDebug;
 class MCSection;
+class MDNode;
 class DwarfFile {
   // Target of Dwarf emission, used for sizing of abbreviations.
   AsmPrinter *Asm;
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp
index 9dd233a67ab8..29cae87a14d0 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "DwarfStringPool.h"
+#include "llvm/CodeGen/AsmPrinter.h"
 #include "llvm/MC/MCStreamer.h"
 
 using namespace llvm;
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.h b/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.h
index 4b9a2aa0b556..b042350fb595 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfStringPool.h
@@ -11,13 +11,13 @@
 #define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFSTRINGPOOL_H
 
 #include "llvm/ADT/StringMap.h"
-#include "llvm/CodeGen/AsmPrinter.h"
 #include "llvm/CodeGen/DwarfStringPoolEntry.h"
 #include "llvm/Support/Allocator.h"
 #include <utility>
 
 namespace llvm {
 
+class AsmPrinter;
 class MCSymbol;
 class MCSection;
 class StringRef;