Add method to query for 'NoAlias' attribute on call/invoke instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165208 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/FunctionAttrs.cpp b/lib/Transforms/IPO/FunctionAttrs.cpp
index f3f6228..f974bd0 100644
--- a/lib/Transforms/IPO/FunctionAttrs.cpp
+++ b/lib/Transforms/IPO/FunctionAttrs.cpp
@@ -520,7 +520,7 @@
         case Instruction::Call:
         case Instruction::Invoke: {
           CallSite CS(RVI);
-          if (CS.paramHasAttr(0, Attribute::NoAlias))
+          if (CS.paramHasNoAliasAttr(0))
             break;
           if (CS.getCalledFunction() &&
               SCCNodes.count(CS.getCalledFunction()))