Adding support for deregistering EH frames with MCJIT.

Patch by Yaron Keren



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192753 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.cpp b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
index fa2c984..bcd0886 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.cpp
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
@@ -62,6 +62,8 @@
 }
 
 MCJIT::~MCJIT() {
+  Dyld.deregisterEHFrames();
+
   LoadedObjectMap::iterator it, end = LoadedObjects.end();
   for (it = LoadedObjects.begin(); it != end; ++it) {
     ObjectImage *Obj = it->second;