1 files changed, 4 insertions, 0 deletions
diff --git a/src/passes/DebugLocationPropagation.cpp b/src/passes/DebugLocationPropagation.cpp
index 07ae53faa..e2d1ac50f 100644
--- a/src/passes/DebugLocationPropagation.cpp
+++ b/src/passes/DebugLocationPropagation.cpp
@@ -64,6 +64,10 @@ struct DebugLocationPropagation
         if (auto it = locs.find(previous); it != locs.end()) {
           locs[curr] = it->second;
         }
+      } else if (self->getFunction()->prologLocation.size()) {
+        // Instructions may inherit their locations from the function
+        // prolog.
+        locs[curr] = *self->getFunction()->prologLocation.begin();
       }
     }
     expressionStack.push_back(curr);