diff options
Diffstat (limited to 'erts/emulator/beam/ops.tab')
| -rw-r--r-- | erts/emulator/beam/ops.tab | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab index fc53a88a3a..edc935e1ff 100644 --- a/erts/emulator/beam/ops.tab +++ b/erts/emulator/beam/ops.tab @@ -883,6 +883,95 @@ call_ext_last u==3 u$func:erlang:hibernate/3 D => i_hibernate call_ext_only u==3 u$func:erlang:hibernate/3 => i_hibernate # +# If VM probes are not enabled, we want to short-circult calls to +# the utag BIFs to make them as cheap as possible. +# + +%unless USE_VM_PROBES + +call_ext Arity u$func:erlang:get_utag/0 => \ + move a=am_undefined r +call_ext_last Arity u$func:erlang:get_utag/0 D => \ + move a=am_undefined r | deallocate D | return +call_ext_only Arity u$func:erlang:get_utag/0 => \ + move a=am_undefined r | return + +move Any r | call_ext Arity u$func:erlang:put_utag/1 => \ + move a=am_undefined r +move Any r | call_ext_last Arity u$func:erlang:put_utag/1 D => \ + move a=am_undefined r | deallocate D | return +move Any r | call_ext_only Arity u$func:erlang:put_utag/1 => \ + move a=am_undefined r | return +call_ext Arity u$func:erlang:put_utag/1 => \ + move a=am_undefined r +call_ext_last Arity u$func:erlang:put_utag/1 D => \ + move a=am_undefined r | deallocate D | return +call_ext_only Arity u$func:erlang:put_utag/1 => \ + move a=am_undefined r | return + +call_ext Arity u$func:erlang:get_utag_data/0 => \ + move a=am_undefined r +call_ext_last Arity u$func:erlang:get_utag_data/0 D => \ + move a=am_undefined r | deallocate D | return +call_ext_only Arity u$func:erlang:get_utag_data/0 => \ + move a=am_undefined r | return + +move Any r | call_ext Arity u$func:erlang:spread_utag/1 => \ + move a=am_true r +move Any r | call_ext_last Arity u$func:erlang:spread_utag/1 D => \ + move a=am_true r | deallocate D | return +move Any r | call_ext_only Arity u$func:erlang:spread_utag/1 => \ + move a=am_true r | return +call_ext Arity u$func:erlang:spread_utag/1 => \ + move a=am_true r +call_ext_last Arity u$func:erlang:spread_utag/1 D => \ + move a=am_true r | deallocate D | return +call_ext_only Arity u$func:erlang:spread_utag/1 => \ + move a=am_true r | return + +move Any r | call_ext Arity u$func:erlang:restore_utag/1 => \ + move a=am_true r +move Any r | call_ext_last Arity u$func:erlang:restore_utag/1 D => \ + move a=am_true r | deallocate D | return +move Any r | call_ext_only Arity u$func:erlang:restore_utag/1 => \ + move a=am_true r | return +call_ext Arity u$func:erlang:restore_utag/1 => \ + move a=am_true r +call_ext_last Arity u$func:erlang:restore_utag/1 D => \ + move a=am_true r | deallocate D | return +call_ext_only Arity u$func:erlang:restore_utag/1 => \ + move a=am_true r | return + +move Any r | call_ext Arity u$func:erlang:prepend_vm_utag_data/1 => \ + move Any r +move Any r | call_ext_last Arity u$func:erlang:prepend_vm_utag_data/1 D => \ + move Any r | deallocate D | return +move Any r | call_ext_only Arity u$func:erlang:prepend_vm_utag_data/1 => \ + move Any r | return +call_ext Arity u$func:erlang:prepend_vm_utag_data/1 => +call_ext_last Arity u$func:erlang:prepend_vm_utag_data/1 D => \ + deallocate D | return +call_ext_only Arity u$func:erlang:prepend_vm_utag_data/1 => \ + return + +move Any r | call_ext Arity u$func:erlang:append_vm_utag_data/1 => \ + move Any r +move Any r | call_ext_last Arity u$func:erlang:append_vm_utag_data/1 D => \ + move Any r | deallocate D | return +move Any r | call_ext_only Arity u$func:erlang:append_vm_utag_data/1 => \ + move Any r | return +call_ext Arity u$func:erlang:append_vm_utag_data/1 => +call_ext_last Arity u$func:erlang:append_vm_utag_data/1 D => \ + deallocate D | return +call_ext_only Arity u$func:erlang:append_vm_utag_data/1 => \ + return + +# Can happen after one of the transformations above. +move Discarded r | move Something r => move Something r + +%endif + +# # The general case for BIFs that have no special instructions. # A BIF used in the tail must be followed by a return instruction. # |