Fix MIPS compiler utils runtime table.

Change-Id: I97add4fb97ec4a42a0222cbe6740910834a316b2
diff --git a/lib/ExecutionEngine/Runtime.def b/lib/ExecutionEngine/Runtime.def
index e15aa11..18e8602 100644
--- a/lib/ExecutionEngine/Runtime.def
+++ b/lib/ExecutionEngine/Runtime.def
@@ -96,6 +96,9 @@
 #ifndef ANDROID // has one in bionic
     DEF_LLVM_RUNTIME(__ashrdi3)
 #endif
+#if defined(__mips__)
+    DEF_GENERIC_RUNTIME(__ashrdi3)
+#endif
 
 #ifdef USE_VFP_RUNTIME
 //    DEF_GENERIC_RUNTIME(__bswapdi2)