Fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191964 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/ProcessImplicitDefs.cpp b/lib/CodeGen/ProcessImplicitDefs.cpp
index e4e18c3..0c5173a 100644
--- a/lib/CodeGen/ProcessImplicitDefs.cpp
+++ b/lib/CodeGen/ProcessImplicitDefs.cpp
@@ -78,7 +78,7 @@
   unsigned Reg = MI->getOperand(0).getReg();
 
   if (TargetRegisterInfo::isVirtualRegister(Reg)) {
-    // For virtual regiusters, mark all uses as <undef>, and convert users to
+    // For virtual registers, mark all uses as <undef>, and convert users to
     // implicit-def when possible.
     for (MachineRegisterInfo::use_nodbg_iterator UI =
          MRI->use_nodbg_begin(Reg),