src/share/vm/runtime/deoptimization.cpp

rev 6132 : 8031755: Type speculation should be used to optimize explicit null checks
Summary: feed profiling data about reference nullness to type speculation.
Reviewed-by:

*** 1824,1834 ****
    "constraint",
    "div0_check",
    "age",
    "predicate",
    "loop_limit_check",
!   "speculate_class_check"
  };
  const char* Deoptimization::_trap_action_name[Action_LIMIT] = {
    // Note:  Keep this in sync. with enum DeoptAction.
    "none",
    "maybe_recompile",
--- 1824,1835 ----
    "constraint",
    "div0_check",
    "age",
    "predicate",
    "loop_limit_check",
!   "speculate_class_check",
!   "speculate_null_check"
  };
  const char* Deoptimization::_trap_action_name[Action_LIMIT] = {
    // Note:  Keep this in sync. with enum DeoptAction.
    "none",
    "maybe_recompile",