MIR Serialization: Serialize the fixed stack pseudo source values.

llvm-svn: 244816
diff --git a/llvm/lib/CodeGen/MIRPrinter.cpp b/llvm/lib/CodeGen/MIRPrinter.cpp
index 367626a..24b895c 100644
--- a/llvm/lib/CodeGen/MIRPrinter.cpp
+++ b/llvm/lib/CodeGen/MIRPrinter.cpp
@@ -722,6 +722,10 @@
     case PseudoSourceValue::ConstantPool:
       OS << "constant-pool";
       break;
+    case PseudoSourceValue::FixedStack:
+      printStackObjectReference(
+          cast<FixedStackPseudoSourceValue>(PVal)->getFrameIndex());
+      break;
     default:
       // TODO: Print the other pseudo source values.
       OS << "<unserializable pseudo value>";