run a late dce pass to clean up extra cruft.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35684 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-ld/Optimize.cpp b/tools/llvm-ld/Optimize.cpp
index 9d98772..96a8860 100644
--- a/tools/llvm-ld/Optimize.cpp
+++ b/tools/llvm-ld/Optimize.cpp
@@ -201,6 +201,7 @@
   if (!DisableOptimizations) {
     addPass(Passes, createInstructionCombiningPass());
     addPass(Passes, createCFGSimplificationPass());
+    addPass(Passes, createDeadCodeEliminationPass());
     addPass(Passes, createGlobalDCEPass());
   }