Index: lib/Transforms/Scalar/GVN.cpp
===================================================================
--- lib/Transforms/Scalar/GVN.cpp
+++ lib/Transforms/Scalar/GVN.cpp
@@ -71,6 +71,7 @@
 static cl::opt<bool> EnablePRE("enable-pre",
                                cl::init(true), cl::Hidden);
 static cl::opt<bool> EnableLoadPRE("enable-load-pre", cl::init(true));
+static cl::opt<bool> AggressiveLoadPRE("aggressive-load-pre", cl::init(false));
 
 // Maximum allowed recursion depth.
 static cl::opt<uint32_t>
@@ -1083,7 +1084,7 @@
   // FIXME: If we could restructure the CFG, we could make a common pred with
   // all the preds that don't have an available LI and insert a new load into
   // that one block.
-  if (NumUnavailablePreds != 1)
+  if (!AggressiveLoadPRE && NumUnavailablePreds != 1)
       return false;
 
   // Split critical edges, and update the unavailable predecessors accordingly.