Reapply r99451 with a fix to move the NoInline check to the cost functions
instead of InlineFunction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99483 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/InlineCost.cpp b/lib/Analysis/InlineCost.cpp
index 5b8b534..c599e90 100644
--- a/lib/Analysis/InlineCost.cpp
+++ b/lib/Analysis/InlineCost.cpp
@@ -255,9 +255,11 @@
   Function *Caller = TheCall->getParent()->getParent();
 
   // Don't inline functions which can be redefined at link-time to mean
-  // something else.  Don't inline functions marked noinline.
+  // something else.  Don't inline functions marked noinline or call sites
+  // marked noinline.
   if (Callee->mayBeOverridden() ||
-      Callee->hasFnAttr(Attribute::NoInline) || NeverInline.count(Callee))
+      Callee->hasFnAttr(Attribute::NoInline) || NeverInline.count(Callee) ||
+      CS.isNoInline())
     return llvm::InlineCost::getNever();
 
   // InlineCost - This value measures how good of an inline candidate this call