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Denys Vlasenko 3aff3b9cb8 awk: assorted optimizations

hash_find(): do not caclculate hash twice. Do not divide - can use
cheap multiply-by-8 shift.

nextword(): do not repeatedly increment in-memory value, do it in register,
then store final result.

hashwalk_init(): do not strlen() twice.

function                                             old     new   delta
hash_search3                                           -      49     +49
hash_find                                            259     281     +22
nextword                                              19      16      -3
evaluate                                            3141    3137      -4
hash_search                                           54      28     -26
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/3 up/down: 71/-33)             Total: 38 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2021-06-29 19:07:36 +02:00

awk.c

awk: assorted optimizations

2021-06-29 19:07:36 +02:00

cmp.c

*: --help tweaks

2021-06-14 20:47:20 +02:00

Config.src

restore documentation on the build config language

2018-06-06 15:16:48 +02:00

diff.c

diff: code shrink