Do not use typeinfo to identify pass in pass manager.

llvm-svn: 36632
diff --git a/llvm/lib/Transforms/Utils/Mem2Reg.cpp b/llvm/lib/Transforms/Utils/Mem2Reg.cpp
index 7d69fd2..37bc318 100644
--- a/llvm/lib/Transforms/Utils/Mem2Reg.cpp
+++ b/llvm/lib/Transforms/Utils/Mem2Reg.cpp
@@ -27,6 +27,9 @@
 
 namespace {
   struct VISIBILITY_HIDDEN PromotePass : public FunctionPass {
+    static const int ID; // Pass identifcation, replacement for typeid
+    PromotePass() : FunctionPass((intptr_t)&ID) {}
+
     // runOnFunction - To run this pass, first we calculate the alloca
     // instructions that are safe for promotion, then we promote each one.
     //
@@ -47,6 +50,7 @@
     }
   };
 
+  const int PromotePass::ID = 0;
   RegisterPass<PromotePass> X("mem2reg", "Promote Memory to Register");
 }  // end of anonymous namespace