diff --git a/include/llvm/Analysis/DependenceGraph.h b/include/llvm/Analysis/DependenceGraph.h
index 9081e4d9ebb..764e9eb1aa5 100644
--- a/include/llvm/Analysis/DependenceGraph.h
+++ b/include/llvm/Analysis/DependenceGraph.h
@@ -21,6 +21,7 @@
 #include <iosfwd>
 #include <vector>
 #include <utility>
+#include <cassert>
 
 class Instruction;
 class Function;
diff --git a/include/llvm/Pass.h b/include/llvm/Pass.h
index 344baa02bae..6ed693ec084 100644
--- a/include/llvm/Pass.h
+++ b/include/llvm/Pass.h
@@ -26,6 +26,7 @@
 #include <map>
 #include <iosfwd>
 #include <typeinfo>
+#include <cassert>
 class Value;
 class BasicBlock;
 class Function;
diff --git a/include/llvm/Target/MRegisterInfo.h b/include/llvm/Target/MRegisterInfo.h
index bfe1db6761e..dcd489105b6 100644
--- a/include/llvm/Target/MRegisterInfo.h
+++ b/include/llvm/Target/MRegisterInfo.h
@@ -10,6 +10,7 @@
 #define LLVM_TARGET_MREGISTERINFO_H
 
 #include "llvm/CodeGen/MachineBasicBlock.h"
+#include <cassert>
 
 class Type;
 class MachineFunction;
diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h
index 6c585c62af9..8e8e0c08992 100644
--- a/include/llvm/Target/TargetInstrInfo.h
+++ b/include/llvm/Target/TargetInstrInfo.h
@@ -9,6 +9,7 @@
 
 #include "Support/DataTypes.h"
 #include <vector>
+#include <cassert>
 
 class MachineInstr;
 class TargetMachine;
diff --git a/include/llvm/Target/TargetRegInfo.h b/include/llvm/Target/TargetRegInfo.h
index e5b1355ac4d..505f6108949 100644
--- a/include/llvm/Target/TargetRegInfo.h
+++ b/include/llvm/Target/TargetRegInfo.h
@@ -10,6 +10,7 @@
 
 #include "Support/hash_map"
 #include <string>
+#include <cassert>
 
 class TargetMachine;
 class IGNode;