Objective C functions may use a magic '\1' on the name. Handle that when
dealing with them in the MCJIT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131601 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ExecutionEngine/MCJIT/MCJIT.cpp b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
index 8adebf3..96e5c68 100644
--- a/lib/ExecutionEngine/MCJIT/MCJIT.cpp
+++ b/lib/ExecutionEngine/MCJIT/MCJIT.cpp
@@ -102,7 +102,12 @@
     return Addr;
   }
 
-  Twine Name = TM->getMCAsmInfo()->getGlobalPrefix() + F->getName();
+  // FIXME: Should we be using the mangler for this? Probably.
+  StringRef BaseName = F->getName();
+  if (BaseName[0] == '\1')
+    BaseName = BaseName.substr(1);
+  else
+    Twine Name = TM->getMCAsmInfo()->getGlobalPrefix() + BaseName;
   return (void*)Dyld.getSymbolAddress(Name.str());
 }