Paolo Bonzini 4fd56724ad Use Jenkins hash. ... This is about twice as fast as the current hash, and removes the need for double hashing (improving locality of reference). The hash function is based on Bob Jenkins' design, slightly adapted wherever Make needs to hash NUL-terminated strings. The old hash function is kept for case-insensitive hashing. This saves 8.5% on QEMU's no-op build (from 12.87s to 11.78s). * configure.ac: Check endianness. * hash.c (rol32, jhash_mix, jhash_final, JHASH_INITVAL, sum_get_unaligned_32, jhash): New. * hash.h (STRING_HASH_1, STRING_N_HASH_1): Use jhash. (STRING_HASH_2, STRING_N_HASH_2): Return a dummy value. (STRING_N_COMPARE, return_STRING_N_COMPARE): Prefer memcmp to strncmp.		2017-11-11 10:08:30 -05:00
..
clean
DEFAULT
DELETE_ON_ERROR
FORCE
INTERMEDIATE	Use Jenkins hash.	2017-11-11 10:08:30 -05:00
ONESHELL
PHONY
POSIX
SECONDARY	Use Jenkins hash.	2017-11-11 10:08:30 -05:00
SILENT