ScalarEvolution: Warn if the result of setFlags/clearFlags is unused.

[oota-llvm.git] / include / llvm / Analysis / IVUsers.h

diff --git a/include/llvm/Analysis/IVUsers.h b/include/llvm/Analysis/IVUsers.h
index 2fb607cc5c37f1bc1ee338ef4650b9ccbd7b02fa..c9828015be291f436f4d184da2172033042e7c17 100644 (file)
--- a/include/llvm/Analysis/IVUsers.h
+++ b/include/llvm/Analysis/IVUsers.h
@@ -24,11 +24,10 @@ namespace llvm {
 class DominatorTree;
 class Instruction;
 class Value;
-class IVUsers;
 class ScalarEvolution;
 class SCEV;
 class IVUsers;
-class TargetData;
+class DataLayout;
 
 /// IVStrideUse - Keep track of one use of a strided induction variable.
 /// The Expr member keeps track of the expression, User is the actual user
@@ -123,7 +122,7 @@ class IVUsers : public LoopPass {
   LoopInfo *LI;
   DominatorTree *DT;
   ScalarEvolution *SE;
-  TargetData *TD;
+  DataLayout *TD;
   SmallPtrSet<Instruction*,16> Processed;
 
   /// IVUses - A list of all tracked IV uses of induction variable expressions
@@ -166,10 +165,16 @@ public:
   const_iterator end() const   { return IVUses.end(); }
   bool empty() const { return IVUses.empty(); }
 
+  bool isIVUserOrOperand(Instruction *Inst) const {
+    return Processed.count(Inst);
+  }
+
   void print(raw_ostream &OS, const Module* = 0) const;
 
   /// dump - This method is used for debugging.
   void dump() const;
+protected:
+  bool AddUsersImpl(Instruction *I, SmallPtrSet<Loop*,16> &SimpleLoopNests);
 };
 
 Pass *createIVUsersPass();