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authorBjörn Gustavsson <[email protected]>2015-03-26 13:16:45 +0100
committerBjörn Gustavsson <[email protected]>2015-04-13 12:37:54 +0200
commitc92cf260bb888c004fb02651670d19989dbc2b74 (patch)
tree1aea823e83a9696bcf9285742e73cd806cd98de1 /erts/emulator/beam/packet_parser.c
parentfea64943212cd96764b595c91b22da68bc72e999 (diff)
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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.
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