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

lib/Transforms/Utils/LCSSA.cpp

@@ -98,7 +98,7 @@ bool LCSSA::runOnFunction(Function &F) {
   for (LoopInfo::iterator I = LI->begin(), E = LI->end(); I != E; ++I) {
     changed |= visitSubloop(*I);
   }
-      
+  
   return changed;
 }
 
@@ -132,6 +132,8 @@ bool LCSSA::visitSubloop(Loop* L) {
     processInstruction(*I, exitBlocks);
   }
   
+  assert(L->isLCSSAForm());
+  
   return true;
 }