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Do some string library work

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This commit is contained in:
Justine Tunney 2022-08-20 21:36:07 -07:00
parent 83d41e4588
commit 35203c0551
42 changed files with 1381 additions and 136 deletions
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16
test/libc/str/strchr_test.c
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@ -167,6 +167,22 @@ TEST(rawmemchr, fuzz) {
free(p);
}
/*
* strchr 0 l: 10c 3ns m: 38c 12ns
* strchr 5 l: 13c 4ns m: 42c 14ns
* strchr 8 l: 14c 5ns m: 44c 14ns
* strchr 17 l: 13c 4ns m: 45c 15ns
* strchr 34 l: 16c 5ns m: 48c 16ns
* strchr z l: 369c 119ns m: 408c 132ns
* rawmemchr z l: 236c 76ns m: 391c 126ns
* memchr z l: 357c 115ns m: 423c 137ns
* strchr Z l: 1,872c 605ns m: 1,911c 617ns
* rawmemchr \0 l: 1,184c 382ns m: 1,880c 607ns
* strlen l: 1,174c 379ns m: 1,237c 400ns
* memchr Z l: 1,866c 603ns m: 1,945c 628ns
* strchrnul z l: 365c 118ns m: 408c 132ns
* strchrnul Z l: 1,871c 604ns m: 1,914c 618ns
*/
BENCH(strchr, bench2) {
char *strchr_(const char *, int) asm("strchr");
char *strchrnul_(const char *, int) asm("strchrnul");