src/share/vm/opto/parse2.cpp

rev 1122 : refactored to check all 3 can_post_exception bits and other Dan comments

*** 2051,2074 ****
  
    case Bytecodes::_athrow:
      // null exception oop throws NULL pointer exception
      do_null_check(peek(), T_OBJECT);
      if (stopped())  return;
-     if (env()->jvmti_can_post_exceptions()) {
-       // "Full-speed throwing" is not necessary here,
-       // since we're notifying the VM on every throw.
-       uncommon_trap(Deoptimization::Reason_unhandled,
-                     Deoptimization::Action_none);
-       return;
-     }
      // Hook the thrown exception directly to subsequent handlers.
      if (BailoutToInterpreterForThrows) {
        // Keep method interpreted from now on.
        uncommon_trap(Deoptimization::Reason_unhandled,
                      Deoptimization::Action_make_not_compilable);
        return;
      }
      add_exception_state(make_exception_state(peek()));
      break;
  
    case Bytecodes::_goto:   // fall through
    case Bytecodes::_goto_w: {
--- 2051,2074 ----
  
    case Bytecodes::_athrow:
      // null exception oop throws NULL pointer exception
      do_null_check(peek(), T_OBJECT);
      if (stopped())  return;
      // Hook the thrown exception directly to subsequent handlers.
      if (BailoutToInterpreterForThrows) {
        // Keep method interpreted from now on.
        uncommon_trap(Deoptimization::Reason_unhandled,
                      Deoptimization::Action_make_not_compilable);
        return;
      }
+     if (env()->jvmti_can_post_exceptions()) {
+       // check if we must post exception events, take uncommon trap if so (with must_throw = false)
+       uncommon_trap_if_should_post_on_exceptions(Deoptimization::Reason_unhandled, false);
+       // here if should_post_on_exceptions is false
+       // continue on with the normal codegen
+     }
+     // Here if the should_post_on_exceptions if false
      add_exception_state(make_exception_state(peek()));
      break;
  
    case Bytecodes::_goto:   // fall through
    case Bytecodes::_goto_w: {