Move isReachableFromEntry out of line to avoid an unnecessary #include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35797 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/VMCore/Dominators.cpp b/lib/VMCore/Dominators.cpp
index 3206ba2e51..45a2cebb63 100644
--- a/lib/VMCore/Dominators.cpp
+++ b/lib/VMCore/Dominators.cpp
@@ -873,6 +873,12 @@ bool ETForestBase::dominates(Instruction *A, Instruction *B) {
   }
 }
 
+/// isReachableFromEntry - Return true if A is dominated by the entry
+/// block of the function containing it.
+const bool ETForestBase::isReachableFromEntry(BasicBlock* A) {
+  return dominates(&A->getParent()->getEntryBlock(), A);
+}
+
 ETNode *ETForest::getNodeForBlock(BasicBlock *BB) {
   ETNode *&BBNode = Nodes[BB];
   if (BBNode) return BBNode;