Mark IMAGE_INFO as constant on x86_64-darwin.
 - This shouldn't change anything, we never actually access it, but
   this is consistent with llvm-gcc (and 32-bit)


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69880 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp
index 03f15ee..9dc5fba 100644
--- a/lib/CodeGen/CGObjCMac.cpp
+++ b/lib/CodeGen/CGObjCMac.cpp
@@ -4101,6 +4101,7 @@
                              "\01L_OBJC_IMAGE_INFO",
                              &CGM.getModule());
   IMGV->setSection("__DATA, __objc_imageinfo, regular, no_dead_strip");
+  IMGV->setConstant(true);
   UsedGlobals.push_back(IMGV);
   
   std::vector<llvm::Constant*> Used;