1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/LiveDebugValues.cpp b/llvm/lib/CodeGen/LiveDebugValues.cpp
index 530da52..fdea702 100644
--- a/llvm/lib/CodeGen/LiveDebugValues.cpp
+++ b/llvm/lib/CodeGen/LiveDebugValues.cpp
@@ -968,9 +968,11 @@ void LiveDebugValues::transferDebugValue(const MachineInstr &MI,
   } else if (MI.hasOneMemOperand()) {
     llvm_unreachable("DBG_VALUE with mem operand encountered after regalloc?");
   } else {
-    // This must be an undefined location. We should leave OpenRanges closed.
+    // This must be an undefined location. If it has an open range, erase it.
     assert(MI.getOperand(0).isReg() && MI.getOperand(0).getReg() == 0 &&
            "Unexpected non-undef DBG_VALUE encountered");
+    VarLoc VL(MI, LS);
+    OpenRanges.erase(VL);
   }
 }