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| author | Björn Gustavsson <[email protected]> | 2015-03-25 09:47:42 +0100 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2015-04-13 12:37:55 +0200 |
| commit | 5b8872c37f63b35e13464109e986ef3727588040 (patch) | |
| tree | aa35e8c7bbb675e3772bd3fc205c78ca9a137599 /erts/emulator/beam | |
| parent | 47e1ed4c0681a73c9d6bc8d24ece85dd77957034 (diff) | |
| download | otp-5b8872c37f63b35e13464109e986ef3727588040.tar.gz otp-5b8872c37f63b35e13464109e986ef3727588040.tar.bz2 otp-5b8872c37f63b35e13464109e986ef3727588040.zip | |
Optimize use of i_get_map_element/4
In the i_get_map_element/4 instruction, for literal keys other than
atoms, the key would be put into x[0] instead of used directly in the
instruction. The reason is that the original implementation of maps
only supported atom keys.
Diffstat (limited to 'erts/emulator/beam')
| -rw-r--r-- | erts/emulator/beam/ops.tab | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab index 92d9ccb5eb..23f5b75b7a 100644 --- a/erts/emulator/beam/ops.tab +++ b/erts/emulator/beam/ops.tab @@ -1521,21 +1521,21 @@ get_map_elements Fail Src Size Rest=* | map_key_sort(Size, Rest) => \ i_get_map_elements f s I -get_map_element Fail Src=rxy Key=ax Dst => i_get_map_element Fail Src Key Dst -get_map_element Fail Src=rxy Key=rycq Dst => \ +get_map_element Fail Src=rxy Key=cx Dst => i_get_map_element Fail Src Key Dst +get_map_element Fail Src=rxy Key=ry Dst => \ move Key x | i_get_map_element Fail Src x Dst get_map_element Fail Src Key Dst => jump Fail %macro: i_get_map_element GetMapElement -fail_action -i_get_map_element f r a r -i_get_map_element f x a r -i_get_map_element f y a r -i_get_map_element f r a x -i_get_map_element f x a x -i_get_map_element f y a x -i_get_map_element f r a y -i_get_map_element f x a y -i_get_map_element f y a y +i_get_map_element f r c r +i_get_map_element f x c r +i_get_map_element f y c r +i_get_map_element f r c x +i_get_map_element f x c x +i_get_map_element f y c x +i_get_map_element f r c y +i_get_map_element f x c y +i_get_map_element f y c y i_get_map_element f r x r i_get_map_element f x x r i_get_map_element f y x r |