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Make trivial code size enhancements

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This commit is contained in:
Justine Tunney 2021-05-16 18:22:39 -07:00
parent b3838173ec
commit 6a8c21269f
4 changed files with 103 additions and 100 deletions
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62
test/libc/str/strlen_test.c
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@ -159,25 +159,47 @@ BENCH(strlen, bench) {
extern size_t strlen_(const char *) asm("strlen");
extern size_t strlen_pure_(const char *) asm("strlen_pure");
static char b[2048];
static char c[512];
static char d[256];
memset(b, -1, sizeof(b) - 1);
EZBENCH2("strlen 1", donothing, strlen_(""));
EZBENCH2("strlen_pure 1", donothing, strlen_pure_(""));
EZBENCH2("strlen 2", donothing, strlen_("1"));
EZBENCH2("strlen_pure 2", donothing, strlen_pure_("1"));
EZBENCH2("strlen 7", donothing, strlen_("123456"));
EZBENCH2("strlen_pure 7", donothing, strlen_pure_("123456"));
EZBENCH2("strlen 8", donothing, strlen_("1234567"));
EZBENCH2("strlen_pure 8", donothing, strlen_pure_("1234567"));
EZBENCH2("strlen 9", donothing, strlen_("12345678"));
EZBENCH2("strlen_pure 9", donothing, strlen_pure_("12345678"));
EZBENCH2("strlen 11", donothing, strlen_("12345678aa"));
EZBENCH2("strlen_pure 11", donothing, strlen_pure_("12345678aa"));
EZBENCH2("strlen 13", donothing, strlen_("12345678aabb"));
EZBENCH2("strlen_pure 13", donothing, strlen_pure_("12345678aabb"));
EZBENCH2("strlen 16", donothing, strlen_("123456781234567"));
EZBENCH2("strlen_pure 16", donothing, strlen_pure_("123456781234567"));
EZBENCH2("strlen 17", donothing, strlen_("123456781234567e"));
EZBENCH2("strlen_pure 17", donothing, strlen_pure_("123456781234567e"));
EZBENCH2("strlen 1023", donothing, strlen_(b));
EZBENCH2("strlen_pure 1023", donothing, strlen_pure_(b));
memset(c, -1, sizeof(c) - 1);
memset(d, -1, sizeof(d) - 1);
EZBENCH2("strlen_sse 1", donothing, strlen_(""));
EZBENCH2("strlen_swar 1", donothing, strlen_pure_(""));
EZBENCH2("strlen_sse 2", donothing, strlen_("1"));
EZBENCH2("strlen_swar 2", donothing, strlen_pure_("1"));
EZBENCH2("strlen_sse 3", donothing, strlen_("11"));
EZBENCH2("strlen_swar 3", donothing, strlen_pure_("11"));
EZBENCH2("strlen_sse 4", donothing, strlen_("113"));
EZBENCH2("strlen_swar 4", donothing, strlen_pure_("113"));
EZBENCH2("strlen_sse 7", donothing, strlen_("123456"));
EZBENCH2("strlen_swar 7", donothing, strlen_pure_("123456"));
EZBENCH2("strlen_sse 8", donothing, strlen_("1234567"));
EZBENCH2("strlen_swar 8", donothing, strlen_pure_("1234567"));
EZBENCH2("strlen_sse 9", donothing, strlen_("12345678"));
EZBENCH2("strlen_swar 9", donothing, strlen_pure_("12345678"));
EZBENCH2("strlen_sse 11", donothing, strlen_("12345678aa"));
EZBENCH2("strlen_swar 11", donothing, strlen_pure_("12345678aa"));
EZBENCH2("strlen_sse 13", donothing, strlen_("12345678aabb"));
EZBENCH2("strlen_swar 13", donothing, strlen_pure_("12345678aabb"));
EZBENCH2("strlen_sse 16", donothing, strlen_("123456781234567"));
EZBENCH2("strlen_swar 16", donothing, strlen_pure_("123456781234567"));
EZBENCH2("strlen_sse 17", donothing, strlen_("123456781234567e"));
EZBENCH2("strlen_swar 17", donothing, strlen_pure_("123456781234567e"));
EZBENCH2("strlen_sse 34", donothing,
strlen_("123456781234567e123456781234567ee"));
EZBENCH2("strlen_swar 34", donothing,
strlen_pure_("123456781234567e123456781234567ee"));
EZBENCH2("strlen_sse 68", donothing,
strlen_("123456781234567e123456781234567ee123456781234567e1234567812"
"34567eee"));
EZBENCH2("strlen_swar 68", donothing,
strlen_pure_("123456781234567e123456781234567ee123456781234567e12345"
"6781234567eee"));
EZBENCH2("strlen_sse 256", donothing, strlen_(d));
EZBENCH2("strlen_swar 256", donothing, strlen_pure_(d));
EZBENCH2("strlen_sse 512", donothing, strlen_(c));
EZBENCH2("strlen_swar 512", donothing, strlen_pure_(c));
EZBENCH2("strlen_sse 2048", donothing, strlen_(b));
EZBENCH2("strlen_swar 2048", donothing, strlen_pure_(b));
}