1 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/MIRPrinter.cpp b/llvm/lib/CodeGen/MIRPrinter.cpp
index bfcc56f680e..9081e660d10 100644
--- a/llvm/lib/CodeGen/MIRPrinter.cpp
+++ b/llvm/lib/CodeGen/MIRPrinter.cpp
@@ -28,6 +28,7 @@
 #include "llvm/IR/Module.h"
 #include "llvm/IR/ModuleSlotTracker.h"
 #include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/Format.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/YAMLTraits.h"
@@ -474,11 +475,13 @@ void MIPrinter::print(const MachineBasicBlock &MBB) {
   if (!MBB.livein_empty()) {
     OS.indent(2) << "liveins: ";
     bool First = true;
-    for (unsigned LI : MBB.liveins()) {
+    for (const auto &LI : MBB.liveins()) {
       if (!First)
         OS << ", ";
       First = false;
-      printReg(LI, OS, TRI);
+      printReg(LI.PhysReg, OS, TRI);
+      if (LI.LaneMask != ~0u)
+        OS << format(":%08X", LI.LaneMask);
     }
     OS << "\n";
     HasLineAttributes = true;