--- ./build/config/compiler/BUILD.gn.orig
+++ ./build/config/compiler/BUILD.gn
@@ -765,7 +765,7 @@
         # toolchain has this flag.
         # We only use one version of LLVM within a build so there's no need to
         # upgrade debug info, which can be expensive since it runs the verifier.
-        ldflags += [ "-Wl,-mllvm,-disable-auto-upgrade-debug-info" ]
+        #ldflags += [ "-Wl,-mllvm,-disable-auto-upgrade-debug-info" ]
       }
     }