diff options
| author | Björn Gustavsson <[email protected]> | 2015-03-26 13:16:45 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2015-04-13 12:37:54 +0200 |
| commit | c92cf260bb888c004fb02651670d19989dbc2b74 (patch) | |
| tree | 1aea823e83a9696bcf9285742e73cd806cd98de1 /erts/emulator/beam/beam_debug.c | |
| parent | fea64943212cd96764b595c91b22da68bc72e999 (diff) | |
| download | otp-c92cf260bb888c004fb02651670d19989dbc2b74.tar.gz otp-c92cf260bb888c004fb02651670d19989dbc2b74.tar.bz2 otp-c92cf260bb888c004fb02651670d19989dbc2b74.zip | |
De-optimize the has_map_fields instructions
The has_map_fields instruction is infrequently used. Thus there
is no need to have the fastest possible implementation; it is
better to have an implementation that reduces the code size in
the already big process_main() function.
We can transform has_map_fields to a get_map_elements instruction,
targeting the same unused x[0] register for all keys. That
instruction will only be marginally slower than existing
implementation.
Diffstat (limited to 'erts/emulator/beam/beam_debug.c')
| -rw-r--r-- | erts/emulator/beam/beam_debug.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c index 38e54e9d1a..0367ca8aba 100644 --- a/erts/emulator/beam/beam_debug.c +++ b/erts/emulator/beam/beam_debug.c @@ -664,7 +664,6 @@ print_op(int to, void *to_arg, int op, int size, BeamInstr* addr) case op_new_map_dII: case op_update_map_assoc_jsdII: case op_update_map_exact_jsdII: - case op_i_has_map_fields_fsI: case op_i_get_map_elements_fsI: { int n = unpacked[-1]; |