split dom frontier handling stuff out to its own DominanceFrontier header,
so that Dominators.h is *just* domtree. Also prune #includes a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122714 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/LiveValues.cpp b/lib/Analysis/LiveValues.cpp
index f7c0b20..a0e6034 100644
--- a/lib/Analysis/LiveValues.cpp
+++ b/lib/Analysis/LiveValues.cpp
@@ -13,6 +13,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/LiveValues.h"
+#include "llvm/Instructions.h"
#include "llvm/Analysis/Dominators.h"
#include "llvm/Analysis/LoopInfo.h"
using namespace llvm;