Remove redundant getAnalysis<> calls in GlobalOpt. Add a few Itanium ABI calls
to TargetLibraryInfo and use one of them in GlobalOpt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150323 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetLibraryInfo.cpp b/lib/Target/TargetLibraryInfo.cpp
index 2119c4e..269958f 100644
--- a/lib/Target/TargetLibraryInfo.cpp
+++ b/lib/Target/TargetLibraryInfo.cpp
@@ -113,7 +113,11 @@
     "tanhf",
     "trunc",
     "truncf",
-    "truncl"
+    "truncl",
+    "__cxa_atexit",
+    "__cxa_guard_abort",
+    "__cxa_guard_acquire",
+    "__cxa_guard_release"
   };
 
 /// initialize - Initialize the set of available library functions based on the