diff --git a/include/llvm/CodeGen/Register.h b/include/llvm/CodeGen/Register.h
index 640bd82bde2..73bca60ffcb 100644
--- a/include/llvm/CodeGen/Register.h
+++ b/include/llvm/CodeGen/Register.h
@@ -113,6 +113,19 @@ public:
   bool isValid() const {
     return Reg != 0;
   }
+
+  /// Comparisons between register objects
+  bool operator==(const Register &Other) const { return Reg == Other.Reg; }
+  bool operator!=(const Register &Other) const { return Reg != Other.Reg; }
+
+  /// Comparisons against register constants. E.g.
+  /// * R == AArch64::WZR
+  /// * R == 0
+  /// * R == VirtRegMap::NO_PHYS_REG
+  bool operator==(unsigned Other) const { return Reg == Other; }
+  bool operator!=(unsigned Other) const { return Reg != Other; }
+  bool operator==(int Other) const { return Reg == unsigned(Other); }
+  bool operator!=(int Other) const { return Reg != unsigned(Other); }
 };
 
 // Provide DenseMapInfo for Register
diff --git a/include/llvm/MC/MCRegister.h b/include/llvm/MC/MCRegister.h
index 0e889c7adf7..5ac7cc356b6 100644
--- a/include/llvm/MC/MCRegister.h
+++ b/include/llvm/MC/MCRegister.h
@@ -14,6 +14,10 @@
 
 namespace llvm {
 
+/// An unsigned integer type large enough to represent all physical registers,
+/// but not necessarily virtual registers.
+using MCPhysReg = uint16_t;
+
 /// Wrapper class representing physical registers. Should be passed by value.
 class MCRegister {
   unsigned Reg;
@@ -63,6 +67,22 @@ public:
   bool isValid() const {
     return Reg != 0;
   }
+
+  /// Comparisons between register objects
+  bool operator==(const MCRegister &Other) const { return Reg == Other.Reg; }
+  bool operator!=(const MCRegister &Other) const { return Reg != Other.Reg; }
+
+  /// Comparisons against register constants. E.g.
+  /// * R == AArch64::WZR
+  /// * R == 0
+  /// * R == VirtRegMap::NO_PHYS_REG
+  bool operator==(unsigned Other) const { return Reg == Other; }
+  bool operator!=(unsigned Other) const { return Reg != Other; }
+  bool operator==(int Other) const { return Reg == unsigned(Other); }
+  bool operator!=(int Other) const { return Reg != unsigned(Other); }
+  // MSVC requires that we explicitly declare these two as well.
+  bool operator==(MCPhysReg Other) const { return Reg == unsigned(Other); }
+  bool operator!=(MCPhysReg Other) const { return Reg != unsigned(Other); }
 };
 
 // Provide DenseMapInfo for MCRegister
diff --git a/include/llvm/MC/MCRegisterInfo.h b/include/llvm/MC/MCRegisterInfo.h
index 8671a861d2a..33ce3bd6aaf 100644
--- a/include/llvm/MC/MCRegisterInfo.h
+++ b/include/llvm/MC/MCRegisterInfo.h
@@ -25,10 +25,6 @@
 
 namespace llvm {
 
-/// An unsigned integer type large enough to represent all physical registers,
-/// but not necessarily virtual registers.
-using MCPhysReg = uint16_t;
-
 /// MCRegisterClass - Base class of TargetRegisterClass.
 class MCRegisterClass {
 public: