//------------------------------------------------------------------------------
// frame::adjust_unextended_sp
void frame::adjust_unextended_sp() {
// On x86, sites calling method handle intrinsics and lambda forms are treated
// as any other call site. Therefore, no special action is needed when we are
// returning to any of these call sites.
nmethod* sender_nm = (_cb == NULL) ? NULL : _cb->as_nmethod_or_null();
if (sender_nm != NULL) {
// If the sender PC is a deoptimization point, get the original PC.
if (sender_nm->is_deopt_entry(_pc) ||
sender_nm->is_deopt_mh_entry(_pc)) {
DEBUG_ONLY(verify_deopt_original_pc(sender_nm, _unextended_sp));
}
}
}
//------------------------------------------------------------------------------
// frame::adjust_unextended_sp
void frame::adjust_unextended_sp() {
// If we are returning to a compiled MethodHandle call site, the
// saved_fp will in fact be a saved value of the unextended SP. The
// simplest way to tell whether we are returning to such a call site
// is as follows:
nmethod* sender_nm = (_cb == NULL) ? NULL : _cb->as_nmethod_or_null();
if (sender_nm != NULL) {
// If the sender PC is a deoptimization point, get the original
// PC. For MethodHandle call site the unextended_sp is stored in
// saved_fp.
if (sender_nm->is_deopt_mh_entry(_pc)) {
DEBUG_ONLY(verify_deopt_mh_original_pc(sender_nm, _fp));
_unextended_sp = _fp;
}
else if (sender_nm->is_deopt_entry(_pc)) {
DEBUG_ONLY(verify_deopt_original_pc(sender_nm, _unextended_sp));
}
else if (sender_nm->is_method_handle_return(_pc)) {
_unextended_sp = _fp;
}
}
}