Index: tools/opt/opt.cpp
===================================================================
--- tools/opt/opt.cpp
+++ tools/opt/opt.cpp
@@ -405,6 +405,7 @@
   initializeCountingFunctionInserterPass(Registry);
   initializeUnreachableBlockElimLegacyPassPass(Registry);
   initializeExpandReductionsPass(Registry);
+  initializeWriteBitcodePassPass(Registry);

 #ifdef LINK_POLLY_INTO_TOOLS
   polly::initializePollyPasses(Registry);