change NULL to 0, unbreaks the ppc target when building on ia64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24176 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Target/TargetInstrItineraries.h b/include/llvm/Target/TargetInstrItineraries.h
index cccd4bcf1e738e4492e84c9eefe667d293a66c58..2d31e9c5cc40ec12fd5c890070b6e5ab0c267e5a 100644 (file)
--- a/include/llvm/Target/TargetInstrItineraries.h
+++ b/include/llvm/Target/TargetInstrItineraries.h
@@ -55,13 +55,13 @@ struct InstrItineraryData {
 //
 // Ctors.
 //
-  InstrItineraryData() : Stages(NULL), Itineratries(NULL) {}
+  InstrItineraryData() : Stages(0), Itineratries(0) {}
   InstrItineraryData(InstrStage *S, InstrItinerary *I) : Stages(S), Itineratries(I) {}
   
   //
   // isEmpty - Returns true if there are no itineraries.
   //
-  inline bool isEmpty() const { return Itineratries == NULL; }
+  inline bool isEmpty() const { return Itineratries == 0; }
   
   //
   // begin - Return the first stage of the itinerary.