Load elimination fix: load should not be replaced with another load if the former is not dominated …

src/hydrogen-load-elimination.cc

Index: src/hydrogen-load-elimination.cc
diff --git a/src/hydrogen-load-elimination.cc b/src/hydrogen-load-elimination.cc
index ea12df865d7b0d91a43eb6f7162374e538509afb..634d75d8620f5ec866048f9794b8e2ff87a5a0a2 100644
--- a/src/hydrogen-load-elimination.cc
+++ b/src/hydrogen-load-elimination.cc
@@ -203,9 +203,12 @@ class HLoadEliminationTable : public ZoneObject {
       // Load is not redundant. Fill out a new entry.
       approx->last_value_ = instr;
       return instr;
-    } else {
+    } else if (approx->last_value_->block()->EqualToOrDominates(
+        instr->block())) {
       // Eliminate the load. Reuse previously stored value or load instruction.
       return approx->last_value_;
+    } else {
+      return instr;
     }
   }