Move isKnownNonNull from private implementation detail of BasicAA to a public

function that others can use, next to llvm::isIdentifiedObject.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151446 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Analysis/AliasAnalysis.h

@@ -568,6 +568,11 @@ bool isNoAliasCall(const Value *V);
 ///
 bool isIdentifiedObject(const Value *V);
 
+/// isKnownNonNull - Return true if this pointer couldn't possibly be null by
+/// its definition.  This returns true for allocas, non-extern-weak globals and
+/// byval arguments.
+bool isKnownNonNull(const Value *V);
+
 } // End llvm namespace
 
 #endif