Make Loop able to verify that it is in LCSSA-form, and have the LCSSA pass assert

on this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28738 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Analysis/LoopInfo.h

@@ -98,7 +98,7 @@ public:
   /// isLoopInvariant - Return true if the specified value is loop invariant
   ///
   bool isLoopInvariant(Value *V) const;
-
+  
   //===--------------------------------------------------------------------===//
   // APIs for simple analysis of the loop.
   //
@@ -147,6 +147,9 @@ public:
   ///
   Value *getTripCount() const;
 
+  /// isLCSSAForm - Return true if the Loop is in LCSSA form
+  bool isLCSSAForm() const;
+
   //===--------------------------------------------------------------------===//
   // APIs for updating loop information after changing the CFG
   //