Drop some unused code

src/hydrogen-bch.cc

Index: src/hydrogen-bch.cc
diff --git a/src/hydrogen-bch.cc b/src/hydrogen-bch.cc
index 5af6030346a56a588d4a9a24b48fd55b1f1b0ac3..2feb1587f8ef6344b6b07072f0a9a3a7966e6ad7 100644
--- a/src/hydrogen-bch.cc
+++ b/src/hydrogen-bch.cc
@@ -237,14 +237,13 @@ class InductionVariableBlocksTable BASE_EMBEDDED {
     // constant limit we will use that instead of the induction limit.
     bool has_upper_constant_limit = true;
     int32_t upper_constant_limit =
-        check != NULL && check->HasUpperLimit() ? check->upper_limit() : 0;
+        check->HasUpperLimit() ? check->upper_limit() : 0;
     for (InductionVariableData::InductionVariableCheck* current_check = check;
          current_check != NULL;
          current_check = current_check->next()) {
       has_upper_constant_limit =
-          has_upper_constant_limit &&
-          check->HasUpperLimit() &&
-          check->upper_limit() == upper_constant_limit;
+          has_upper_constant_limit && current_check->HasUpperLimit() &&

[Yang, 2014/10/02 09:54:13]

This seems like a bug fix rather and a mechanical change.

+          current_check->upper_limit() == upper_constant_limit;
       counters()->bounds_checks_eliminated()->Increment();
       current_check->check()->set_skip_check();
     }