Do not use typeinfo to identify pass in pass manager.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/LoopUnroll.cpp

@@ -49,6 +49,9 @@ namespace {
   class VISIBILITY_HIDDEN LoopUnroll : public LoopPass {
     LoopInfo *LI;  // The current loop information
   public:
+    static const int ID; // Pass ID, replacement for typeid
+    LoopUnroll()  : LoopPass((intptr_t)&ID) {}
+
     bool runOnLoop(Loop *L, LPPassManager &LPM);
     BasicBlock* FoldBlockIntoPredecessor(BasicBlock* BB);
 
@@ -63,6 +66,7 @@ namespace {
       AU.addPreserved<LoopInfo>();
     }
   };
+  const int LoopUnroll::ID = 0;
   RegisterPass<LoopUnroll> X("loop-unroll", "Unroll loops");
 }