1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/Debugify.cpp b/llvm/lib/Transforms/Utils/Debugify.cpp
index 291e2a5..a0b7fdb 100644
--- a/llvm/lib/Transforms/Utils/Debugify.cpp
+++ b/llvm/lib/Transforms/Utils/Debugify.cpp
@@ -706,6 +706,15 @@ bool llvm::checkDebugInfoMetadata(Module &M,
       DILocsBefore, DILocsAfter, InstToDelete, NameOfWrappedPass,
       FileNameFromCU, ShouldWriteIntoJSON, Bugs);
 
+#if LLVM_ENABLE_DEBUGLOC_TRACKING_COVERAGE
+  // If we are tracking DebugLoc coverage, replace each empty DebugLoc with an
+  // annotated location now so that it does not show up in future passes even if
+  // it is propagated to other instructions.
+  for (auto &L : DILocsAfter)
+    if (!L.second)
+      L.first->setDebugLoc(DebugLoc::getUnknown());
+#endif
+
   bool ResultForVars = checkVars(DIVarsBefore, DIVarsAfter, NameOfWrappedPass,
                                  FileNameFromCU, ShouldWriteIntoJSON, Bugs);