Tentatively enabled DAGCombiner Alias Analysis by default.  As far as I know,
r114268 fixed the last of the blockers to enabling it.  I will be monitoring
for failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114312 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index c9c4d91..f4b9615 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -46,7 +46,7 @@
 
 namespace {
   static cl::opt<bool>
-    CombinerAA("combiner-alias-analysis", cl::Hidden,
+    CombinerAA("combiner-alias-analysis", cl::init(true), cl::Hidden,
                cl::desc("Turn on alias analysis during testing"));
 
   static cl::opt<bool>