diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -5578,8 +5578,11 @@
   }
 
   // Enable -mconstructor-aliases except on darwin, where we have to work around
-  // a linker bug (see https://openradar.appspot.com/7198997), and CUDA device
-  // code, where aliases aren't supported.
+  // a linker bug where aliasing symbols are not moved to the new locations when
+  // the aliased symbol is moved, and CUDA device code, where aliases aren't
+  // supported.
+  // FIXME: Enable this on Darwin after extensive testing. The linker bug
+  // mentioned above has been fixed.
   if (!RawTriple.isOSDarwin() && !RawTriple.isNVPTX())
     CmdArgs.push_back("-mconstructor-aliases");