diff --git a/llvm/lib/CodeGen/StackProtector.cpp b/llvm/lib/CodeGen/StackProtector.cpp
index a63ba8c..1ffd910 100644
--- a/llvm/lib/CodeGen/StackProtector.cpp
+++ b/llvm/lib/CodeGen/StackProtector.cpp
@@ -86,15 +86,15 @@
   DT = DTWP ? &DTWP->getDomTree() : nullptr;
   TLI = TM->getTargetLowering();
 
-  if (!RequiresStackProtector())
-    return false;
-
   Attribute Attr = Fn.getAttributes().getAttribute(
       AttributeSet::FunctionIndex, "stack-protector-buffer-size");
   if (Attr.isStringAttribute() &&
       Attr.getValueAsString().getAsInteger(10, SSPBufferSize))
       return false; // Invalid integer string
 
+  if (!RequiresStackProtector())
+    return false;
+
   ++NumFunProtected;
   return InsertStackProtectors();
 }