diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -5380,10 +5380,11 @@
   llvm::DIExpression *InitExpr = nullptr;
   if (CGM.getContext().getTypeSize(VD->getType()) <= 64) {
     // FIXME: Add a representation for integer constants wider than 64 bits.
-    if (Init.isInt())
-      InitExpr =
-          DBuilder.createConstantValueExpression(Init.getInt().getExtValue());
-    else if (Init.isFloat())
+    if (Init.isInt()) {
+      auto InitInt = Init.getInt().tryExtValue();
+      if (InitInt)
+        InitExpr = DBuilder.createConstantValueExpression(InitInt.value());
+    } else if (Init.isFloat())
       InitExpr = DBuilder.createConstantValueExpression(
           Init.getFloat().bitcastToAPInt().getZExtValue());
   }