Add a DominatorTree argument to isLCSSA so that it doesn't have to

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

diff --git a/include/llvm/Analysis/LazyValueInfo.h b/include/llvm/Analysis/LazyValueInfo.h
index d346696433643bd6be0cba24832a23e5f019935d..566788daa6161d1d15d0fc3e7b2b2cbe2368ff31 100644 (file)
--- a/include/llvm/Analysis/LazyValueInfo.h
+++ b/include/llvm/Analysis/LazyValueInfo.h
@@ -27,23 +27,28 @@ namespace llvm {
 class LazyValueInfo : public FunctionPass {
   class TargetData *TD;
   void *PImpl;
+  LazyValueInfo(const LazyValueInfo&); // DO NOT IMPLEMENT.
+  void operator=(const LazyValueInfo&); // DO NOT IMPLEMENT.
 public:
   static char ID;
   LazyValueInfo() : FunctionPass(&ID), PImpl(0) {}
+  ~LazyValueInfo() { assert(PImpl == 0 && "releaseMemory not called"); }
 
-  /// Tristate - This is used to return yes/no/dunno results.
+  /// Tristate - This is used to return true/false/dunno results.
   enum Tristate {
-    Unknown = -1, No = 0, Yes = 1
+    Unknown = -1, False = 0, True = 1
   };
   
   
   // Public query interface.
   
+  /// getPredicateOnEdge - Determine whether the specified value comparison
+  /// with a constant is known to be true or false on the specified CFG edge.
+  /// Pred is a CmpInst predicate.
+  Tristate getPredicateOnEdge(unsigned Pred, Value *V, Constant *C,
+                              BasicBlock *FromBB, BasicBlock *ToBB);
+  
   
-  /// isEqual - Determine whether the specified value is known to be equal or
-  /// not-equal to the specified constant at the end of the specified block.
-  Tristate isEqual(Value *V, Constant *C, BasicBlock *BB);
-
   /// getConstant - Determine whether the specified value is known to be a
   /// constant at the end of the specified block.  Return null if not.
   Constant *getConstant(Value *V, BasicBlock *BB);