Reapply r110396, with fixes to appease the Linux buildbot gods.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/BreakCriticalEdges.cpp b/lib/Transforms/Utils/BreakCriticalEdges.cpp
index baa114b..424d878 100644
--- a/lib/Transforms/Utils/BreakCriticalEdges.cpp
+++ b/lib/Transforms/Utils/BreakCriticalEdges.cpp
@@ -36,7 +36,7 @@
 namespace {
   struct BreakCriticalEdges : public FunctionPass {
     static char ID; // Pass identification, replacement for typeid
-    BreakCriticalEdges() : FunctionPass(&ID) {}
+    BreakCriticalEdges() : FunctionPass(ID) {}
 
     virtual bool runOnFunction(Function &F);
 
@@ -57,7 +57,7 @@
 X("break-crit-edges", "Break critical edges in CFG");
 
 // Publically exposed interface to pass...
-const PassInfo *const llvm::BreakCriticalEdgesID = &X;
+char &llvm::BreakCriticalEdgesID = BreakCriticalEdges::ID;
 FunctionPass *llvm::createBreakCriticalEdgesPass() {
   return new BreakCriticalEdges();
 }