New array bounds check elimination pass (focused on induction variables and bitwise operations).

src/hydrogen.cc

Index: src/hydrogen.cc
diff --git a/src/hydrogen.cc b/src/hydrogen.cc
index 266c129d9bde65bf2b89966491ee46eb82327829..a97d0a9a75b12f28534acc53ee252fd171ee18ce 100644
--- a/src/hydrogen.cc
+++ b/src/hydrogen.cc
@@ -34,6 +34,7 @@
 #include "full-codegen.h"
 #include "hashmap.h"
 #include "hydrogen-bce.h"
+#include "hydrogen-bch.h"
 #include "hydrogen-canonicalize.h"
 #include "hydrogen-dce.h"
 #include "hydrogen-dehoist.h"
@@ -3029,6 +3030,9 @@ bool HGraph::Optimize(SmartArrayPointer<char>* bailout_reason) {
   if (FLAG_array_bounds_checks_elimination && !FLAG_idefs) {
     Run<HBoundsCheckEliminationPhase>();
   }
+  if (FLAG_array_bounds_checks_hoisting && !FLAG_idefs) {
+    Run<HBoundsCheckHoistingPhase>();
+  }
   if (FLAG_array_index_dehoisting) Run<HDehoistIndexComputationsPhase>();
   if (FLAG_dead_code_elimination) Run<HDeadCodeEliminationPhase>();