Index: llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
===================================================================
--- llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -706,20 +706,21 @@
 
   // If the MI is an instruction defining one or more parameters' forwarding
   // registers, add those defines.
-  auto getForwardingRegsDefinedByMI = [&](const MachineInstr &MI,
-                                          SmallSetVector<unsigned, 4> &Defs) {
-    if (MI.isDebugInstr())
-      return;
-
-    for (const MachineOperand &MO : MI.operands()) {
-      if (MO.isReg() && MO.isDef() &&
-          Register::isPhysicalRegister(MO.getReg())) {
-        for (auto FwdReg : ForwardedRegWorklist)
-          if (TRI->regsOverlap(FwdReg.first, MO.getReg()))
-            Defs.insert(FwdReg.first);
-      }
-    }
-  };
+  auto getForwardingRegsDefinedByMI =
+      [&ForwardedRegWorklist, &TRI](const MachineInstr &MI,
+                                    SmallSetVector<unsigned, 4> &Defs) {
+        if (MI.isDebugInstr())
+          return;
+
+        for (const MachineOperand &MO : MI.operands()) {
+          if (MO.isReg() && MO.isDef() &&
+              Register::isPhysicalRegister(MO.getReg())) {
+            for (auto FwdReg : ForwardedRegWorklist)
+              if (TRI->regsOverlap(FwdReg.first, MO.getReg()))
+                Defs.insert(FwdReg.first);
+          }
+        }
+      };
 
   // Search for a loading value in forwarding registers.
   for (; I != MBB->rend(); ++I) {