Index: include/llvm/CodeGen/MachineRegisterInfo.h
===================================================================
--- include/llvm/CodeGen/MachineRegisterInfo.h
+++ include/llvm/CodeGen/MachineRegisterInfo.h
@@ -714,7 +714,8 @@
 
   /// createVirtualRegister - Create and return a new virtual register in the
   /// function with the specified register class.
-  unsigned createVirtualRegister(const TargetRegisterClass *RegClass);
+  unsigned createVirtualRegister(const TargetRegisterClass *RegClass,
+                                 StringRef Name = "");
 
   /// Accessor for VRegToType. This accessor should only be used
   /// by global-isel related work.
@@ -733,7 +734,7 @@
 
   /// Create and return a new generic virtual register with low-level
   /// type \p Ty.
-  unsigned createGenericVirtualRegister(LLT Ty);
+  unsigned createGenericVirtualRegister(LLT Ty, StringRef Name = "");
 
   /// Remove all types associated to virtual registers (after instruction
   /// selection and constraining of all generic virtual registers).
Index: lib/CodeGen/MachineRegisterInfo.cpp
===================================================================
--- lib/CodeGen/MachineRegisterInfo.cpp
+++ lib/CodeGen/MachineRegisterInfo.cpp
@@ -162,13 +162,14 @@
 /// function with the specified register class.
 ///
 unsigned
-MachineRegisterInfo::createVirtualRegister(const TargetRegisterClass *RegClass){
+MachineRegisterInfo::createVirtualRegister(const TargetRegisterClass *RegClass,
+                                           StringRef Name) {
   assert(RegClass && "Cannot create register without RegClass!");
   assert(RegClass->isAllocatable() &&
          "Virtual register RegClass must be allocatable.");
 
   // New virtual register number.
-  unsigned Reg = createIncompleteVirtualRegister();
+  unsigned Reg = createIncompleteVirtualRegister(Name);
   VRegInfo[Reg].first = RegClass;
   if (TheDelegate)
     TheDelegate->MRI_NoteNewVirtualRegister(Reg);
@@ -189,9 +190,9 @@
 }
 
 unsigned
-MachineRegisterInfo::createGenericVirtualRegister(LLT Ty) {
+MachineRegisterInfo::createGenericVirtualRegister(LLT Ty, StringRef Name) {
   // New virtual register number.
-  unsigned Reg = createIncompleteVirtualRegister();
+  unsigned Reg = createIncompleteVirtualRegister(Name);
   // FIXME: Should we use a dummy register class?
   VRegInfo[Reg].first = static_cast<RegisterBank *>(nullptr);
   getVRegToType()[Reg] = Ty;