[llvm-commits] [llvm] r89662 - /llvm/trunk/include/llvm/Analysis/AliasAnalysis.h

[Chris Lattner]

Author: lattner
Date: Mon Nov 23 10:38:54 2009
New Revision: 89662

URL: http://llvm.org/viewvc/llvm-project?rev=89662&view=rev
Log:
add a helper

Modified:
    llvm/trunk/include/llvm/Analysis/AliasAnalysis.h

Modified: llvm/trunk/include/llvm/Analysis/AliasAnalysis.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Analysis/AliasAnalysis.h?rev=89662&r1=89661&r2=89662&view=diff

==============================================================================
--- llvm/trunk/include/llvm/Analysis/AliasAnalysis.h (original)
+++ llvm/trunk/include/llvm/Analysis/AliasAnalysis.h Mon Nov 23 10:38:54 2009
@@ -94,6 +94,13 @@
   virtual AliasResult alias(const Value *V1, unsigned V1Size,
                             const Value *V2, unsigned V2Size);
 
+  /// isNoAlias - A trivial helper function to check to see if the specified
+  /// pointers are no-alias.
+  bool isNoAlias(const Value *V1, unsigned V1Size,
+                 const Value *V2, unsigned V2Size) {
+    return alias(V1, V1Size, V2, V2Size) == NoAlias;
+  }
+
   /// pointsToConstantMemory - If the specified pointer is known to point into
   /// constant global memory, return true.  This allows disambiguation of store
   /// instructions from constant pointers.