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| author | Noah Goldstein <goldstein.w.n@gmail.com> | 2021-05-17 13:56:17 -0400 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2021-05-18 22:57:39 -0400 |
| commit | e68d6fcccae10f325799b965875744470adc7281 (patch) | |
| tree | 1462d77f20a74034cc39fe049094caca630c132f /string | |
| parent | 3f500e7202476500fdc70f98d796d4103705638f (diff) | |
| download | glibc-e68d6fcccae10f325799b965875744470adc7281.zip glibc-e68d6fcccae10f325799b965875744470adc7281.tar.gz glibc-e68d6fcccae10f325799b965875744470adc7281.tar.bz2 | |
x86: Expand bench-memcmp.c and test-memcmp.c
No bug. This commit adds some additional performance test cases to
bench-memcmp.c and test-memcmp.c. The new benchtests include some
medium range sizes, as well as small sizes near page cross. The new
correctness tests correspond with the new benchtests though add some
additional cases for checking the page cross logic.
Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'string')
| -rw-r--r-- | string/test-memcmp.c | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/string/test-memcmp.c b/string/test-memcmp.c index 02ea9b7..fbda26a 100644 --- a/string/test-memcmp.c +++ b/string/test-memcmp.c @@ -111,11 +111,11 @@ do_test (size_t align1, size_t align2, size_t len, int exp_result) if (len == 0) return; - align1 &= 63; + align1 &= (4096 - CHARBYTES); if (align1 + (len + 1) * CHARBYTES >= page_size) return; - align2 &= 63; + align2 &= (4096 - CHARBYTES); if (align2 + (len + 1) * CHARBYTES >= page_size) return; @@ -487,18 +487,40 @@ test_main (void) printf ("\t%s", impl->name); putchar ('\n'); - for (i = 1; i < 16; ++i) + for (i = 1; i < 32; ++i) { do_test (i * CHARBYTES, i * CHARBYTES, i, 0); do_test (i * CHARBYTES, i * CHARBYTES, i, 1); do_test (i * CHARBYTES, i * CHARBYTES, i, -1); } - for (i = 0; i < 16; ++i) + for (i = 0; i < 32; ++i) { do_test (0, 0, i, 0); do_test (0, 0, i, 1); do_test (0, 0, i, -1); + do_test (4096 - i, 0, i, 0); + do_test (4096 - i, 0, i, 1); + do_test (4096 - i, 0, i, -1); + do_test (4095, 0, i, 0); + do_test (4095, 0, i, 1); + do_test (4095, 0, i, -1); + do_test (4095, 4095, i, 0); + do_test (4095, 4095, i, 1); + do_test (4095, 4095, i, -1); + do_test (4000, 95, i, 0); + do_test (4000, 95, i, 1); + do_test (4000, 95, i, -1); + } + + for (i = 33; i < 385; i += 32) + { + do_test (0, 0, i, 0); + do_test (0, 0, i, 1); + do_test (0, 0, i, -1); + do_test (i, 0, i, 0); + do_test (0, i, i, 1); + do_test (i, i, i, -1); } for (i = 1; i < 10; ++i) @@ -506,13 +528,19 @@ test_main (void) do_test (0, 0, 2 << i, 0); do_test (0, 0, 2 << i, 1); do_test (0, 0, 2 << i, -1); - do_test (0, 0, 16 << i, 0); do_test ((8 - i) * CHARBYTES, (2 * i) * CHARBYTES, 16 << i, 0); + do_test (0, 0, 16 << i, 0); do_test (0, 0, 16 << i, 1); do_test (0, 0, 16 << i, -1); + do_test (i, 0, 2 << i, 0); + do_test (0, i, 2 << i, 1); + do_test (i, i, 2 << i, -1); + do_test (i, 0, 16 << i, 0); + do_test (0, i, 16 << i, 1); + do_test (i, i, 16 << i, -1); } - for (i = 1; i < 8; ++i) + for (i = 1; i < 10; ++i) { do_test (i * CHARBYTES, 2 * (i * CHARBYTES), 8 << i, 0); do_test (i * CHARBYTES, 2 * (i * CHARBYTES), 8 << i, 1); |