Files
mlib/bench/udb2/test-mlib.c
T
Patrick Pelissier a73bee2650 Micro-optimization of DICT_OA
by reducing the number of cmp instructions.
2021-02-13 11:45:16 +01:00

35 lines
894 B
C

#include "../common.c"
#define M_USE_DICT_OA_PROBING(s) 1
#include "m-dict.h"
static inline bool oor_equal_p(unsigned int k, unsigned char n)
{
return k == (unsigned int)n;
}
static inline void oor_set(unsigned int *k, unsigned char n)
{
*k = (unsigned int)n;
}
DICT_OA_DEF2(dict_oa_uint,
unsigned int, M_OPEXTEND(M_DEFAULT_OPLIST, HASH(hash_fn), OOR_EQUAL(oor_equal_p), OOR_SET(oor_set M_IPTR)),
unsigned int, M_DEFAULT_OPLIST)
uint32_t test_int(uint32_t n, uint32_t x0)
{
uint32_t i, x, z = 0;
dict_oa_uint_t h;
dict_oa_uint_init(h);
for (i = 0, x = x0; i < n; ++i) {
x = hash32(x);
unsigned int key = get_key(n, x);
unsigned int *ptr = dict_oa_uint_get_at(h, key);
(*ptr)++;
z += *ptr;
}
fprintf(stderr, "# unique keys: %d; checksum: %u\n", (int) dict_oa_uint_size(h), z);
z = dict_oa_uint_size(h);
dict_oa_uint_clear(h);
return z;
}