Index: include/llvm/CodeGen/PBQP/Graph.h
===================================================================
--- include/llvm/CodeGen/PBQP/Graph.h
+++ include/llvm/CodeGen/PBQP/Graph.h
@@ -16,6 +16,9 @@
 #define LLVM_CODEGEN_PBQP_GRAPH_H
 
 #include "llvm/Support/Debug.h"
+#include <algorithm>
+#include <cassert>
+#include <limits>
 #include <utility>
 #include <vector>
 
Index: include/llvm/IR/UseListOrder.h
===================================================================
--- include/llvm/IR/UseListOrder.h
+++ include/llvm/IR/UseListOrder.h
@@ -15,6 +15,7 @@
 #ifndef LLVM_IR_USELISTORDER_H
 #define LLVM_IR_USELISTORDER_H
 
+#include <cstddef>
 #include <vector>
 
 namespace llvm {
Index: include/llvm/MC/MCSymbol.h
===================================================================
--- include/llvm/MC/MCSymbol.h
+++ include/llvm/MC/MCSymbol.h
@@ -18,6 +18,7 @@
 #include "llvm/ADT/PointerUnion.h"
 #include "llvm/ADT/StringMap.h"
 #include "llvm/MC/MCAssembler.h"
+#include "llvm/MC/MCFragment.h"
 #include "llvm/Support/Compiler.h"
 
 namespace llvm {