MIR Serialization: Serialize the 'early-clobber' register operand flag.

llvm-svn: 244075
diff --git a/llvm/lib/CodeGen/MIRPrinter.cpp b/llvm/lib/CodeGen/MIRPrinter.cpp
index 2eb5cbf..bba9518 100644
--- a/llvm/lib/CodeGen/MIRPrinter.cpp
+++ b/llvm/lib/CodeGen/MIRPrinter.cpp
@@ -529,6 +529,8 @@
       OS << "killed ";
     if (Op.isUndef())
       OS << "undef ";
+    if (Op.isEarlyClobber())
+      OS << "early-clobber ";
     if (Op.isDebug())
       OS << "debug-use ";
     printReg(Op.getReg(), OS, TRI);