Respect the 'nobuiltin' attribute when determining if a call is to a memory builtin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181978 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/MemoryBuiltins.cpp b/lib/Analysis/MemoryBuiltins.cpp
index 9c0d8ac..1660347 100644
--- a/lib/Analysis/MemoryBuiltins.cpp
+++ b/lib/Analysis/MemoryBuiltins.cpp
@@ -77,6 +77,9 @@
   if (!CS.getInstruction())
     return 0;
 
+  if (CS.hasFnAttr(Attribute::NoBuiltin))
+    return 0;
+
   Function *Callee = CS.getCalledFunction();
   if (!Callee || !Callee->isDeclaration())
     return 0;