From: Noah Goldstein <goldstein.w.n@gmail.com>
To: libc-alpha@sourceware.org
Subject: [PATCH v2 4/7] string: Improve coverage in test-strcmp.c and test-strncmp.c
Date: Sun, 9 Jan 2022 18:27:43 -0600 [thread overview]
Message-ID: <20220110002746.3653516-4-goldstein.w.n@gmail.com> (raw)
In-Reply-To: <20220110002746.3653516-1-goldstein.w.n@gmail.com>
Add additional test cases for small / medium sizes.
Add tests in test-strncmp.c where `n` is near ULONG_MAX or LONG_MIN to
test for overflow bugs in length handling.
Signed-off-by: Noah Goldstein <goldstein.w.n@gmail.com>
---
string/test-strcmp.c | 70 ++++++++++--
string/test-strncmp.c | 248 +++++++++++++++++++++++++++++++++++++++---
2 files changed, 298 insertions(+), 20 deletions(-)
diff --git a/string/test-strcmp.c b/string/test-strcmp.c
index 97d7bf5043..eacbdc8857 100644
--- a/string/test-strcmp.c
+++ b/string/test-strcmp.c
@@ -16,6 +16,9 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
+#define TEST_LEN (4096 * 3)
+#define MIN_PAGE_SIZE (TEST_LEN + 2 * getpagesize ())
+
#define TEST_MAIN
#ifdef WIDE
# define TEST_NAME "wcscmp"
@@ -129,7 +132,7 @@ do_one_test (impl_t *impl,
static void
do_test (size_t align1, size_t align2, size_t len, int max_char,
- int exp_result)
+ int exp_result)
{
size_t i;
@@ -138,19 +141,22 @@ do_test (size_t align1, size_t align2, size_t len, int max_char,
if (len == 0)
return;
- align1 &= 63;
+ align1 &= ~(CHARBYTES - 1);
+ align2 &= ~(CHARBYTES - 1);
+
+ align1 &= getpagesize () - 1;
if (align1 + (len + 1) * CHARBYTES >= page_size)
return;
- align2 &= 63;
+ align2 &= getpagesize () - 1;
if (align2 + (len + 1) * CHARBYTES >= page_size)
return;
/* Put them close to the end of page. */
i = align1 + CHARBYTES * (len + 2);
- s1 = (CHAR *) (buf1 + ((page_size - i) / 16 * 16) + align1);
+ s1 = (CHAR *)(buf1 + ((page_size - i) / 16 * 16) + align1);
i = align2 + CHARBYTES * (len + 2);
- s2 = (CHAR *) (buf2 + ((page_size - i) / 16 * 16) + align2);
+ s2 = (CHAR *)(buf2 + ((page_size - i) / 16 * 16) + align2);
for (i = 0; i < len; i++)
s1[i] = s2[i] = 1 + (23 << ((CHARBYTES - 1) * 8)) * i % max_char;
@@ -161,9 +167,10 @@ do_test (size_t align1, size_t align2, size_t len, int max_char,
s2[len - 1] -= exp_result;
FOR_EACH_IMPL (impl, 0)
- do_one_test (impl, s1, s2, exp_result);
+ do_one_test (impl, s1, s2, exp_result);
}
+
static void
do_random_tests (void)
{
@@ -385,7 +392,7 @@ check3 (void)
int
test_main (void)
{
- size_t i;
+ size_t i, j;
test_init ();
check();
@@ -426,6 +433,55 @@ test_main (void)
do_test (2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, -1);
}
+ for (j = 0; j < 160; ++j)
+ {
+ for (i = 0; i < TEST_LEN;)
+ {
+ do_test (getpagesize () - j - 1, 0, i, 127, 0);
+ do_test (getpagesize () - j - 1, 0, i, 127, 1);
+ do_test (getpagesize () - j - 1, 0, i, 127, -1);
+
+ do_test (getpagesize () - j - 1, j, i, 127, 0);
+ do_test (getpagesize () - j - 1, j, i, 127, 1);
+ do_test (getpagesize () - j - 1, j, i, 127, -1);
+
+ do_test (0, getpagesize () - j - 1, i, 127, 0);
+ do_test (0, getpagesize () - j - 1, i, 127, 1);
+ do_test (0, getpagesize () - j - 1, i, 127, -1);
+
+ do_test (j, getpagesize () - j - 1, i, 127, 0);
+ do_test (j, getpagesize () - j - 1, i, 127, 1);
+ do_test (j, getpagesize () - j - 1, i, 127, -1);
+
+ if (i < 32)
+ {
+ i += 1;
+ }
+ else if (i < 161)
+ {
+ i += 7;
+ }
+ else if (i + 161 < TEST_LEN)
+ {
+ i += 31;
+ i *= 17;
+ i /= 16;
+ if (i + 161 > TEST_LEN)
+ {
+ i = TEST_LEN - 160;
+ }
+ }
+ else if (i + 32 < TEST_LEN)
+ {
+ i += 7;
+ }
+ else
+ {
+ i += 1;
+ }
+ }
+ }
+
do_random_tests ();
return ret;
}
diff --git a/string/test-strncmp.c b/string/test-strncmp.c
index 61a283a0af..4fa6106eb4 100644
--- a/string/test-strncmp.c
+++ b/string/test-strncmp.c
@@ -16,6 +16,9 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
+#define TEST_LEN (4096 * 3)
+#define MIN_PAGE_SIZE (TEST_LEN + 2 * getpagesize ())
+
#define TEST_MAIN
#ifdef WIDE
# define TEST_NAME "wcsncmp"
@@ -166,10 +169,10 @@ do_test_limit (size_t align1, size_t align2, size_t len, size_t n, int max_char,
}
static void
-do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char,
- int exp_result)
+do_test_n (size_t align1, size_t align2, size_t len, size_t n, int n_in_bounds,
+ int max_char, int exp_result)
{
- size_t i;
+ size_t i, buf_bound;
CHAR *s1, *s2;
align1 &= ~(CHARBYTES - 1);
@@ -178,22 +181,28 @@ do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char,
if (n == 0)
return;
- align1 &= 63;
- if (align1 + (n + 1) * CHARBYTES >= page_size)
+ buf_bound = n_in_bounds ? n : len;
+
+ align1 &= getpagesize () - 1;
+ if (align1 + (buf_bound + 1) * CHARBYTES >= page_size)
return;
- align2 &= 63;
- if (align2 + (n + 1) * CHARBYTES >= page_size)
+ align2 &= getpagesize () - 1;
+ if (align2 + (buf_bound + 1) * CHARBYTES >= page_size)
return;
- s1 = (CHAR *) (buf1 + align1);
- s2 = (CHAR *) (buf2 + align2);
+ s1 = (CHAR *)(buf1 + align1);
+ s2 = (CHAR *)(buf2 + align2);
- for (i = 0; i < n; i++)
+ if (n_in_bounds)
+ {
+ s1[n] = 24 + exp_result;
+ s2[n] = 23;
+ }
+
+ for (i = 0; i < buf_bound; i++)
s1[i] = s2[i] = 1 + (23 << ((CHARBYTES - 1) * 8)) * i % max_char;
- s1[n] = 24 + exp_result;
- s2[n] = 23;
s1[len] = 0;
s2[len] = 0;
if (exp_result < 0)
@@ -207,6 +216,13 @@ do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char,
do_one_test (impl, s1, s2, n, exp_result);
}
+static void
+do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char,
+ int exp_result)
+{
+ do_test_n (align1, align2, len, n, 1, max_char, exp_result);
+}
+
static void
do_page_test (size_t offset1, size_t offset2, CHAR *s2)
{
@@ -400,10 +416,123 @@ check3 (void)
}
}
+static void
+check_overflow (void)
+{
+ size_t i, j, of_mask, of_idx;
+ const size_t of_masks[]
+ = { ULONG_MAX, LONG_MIN, ULONG_MAX - (ULONG_MAX >> 2),
+ ((size_t)LONG_MAX) >> 1 };
+
+ for (of_idx = 0; of_idx < sizeof (of_masks) / sizeof (of_masks[0]); ++of_idx)
+ {
+ of_mask = of_masks[of_idx];
+ for (j = 0; j < 160; ++j)
+ {
+ for (i = 1; i <= 161; i += (32 / sizeof (CHAR)))
+ {
+ do_test_n (j, 0, i, of_mask, 0, 127, 0);
+ do_test_n (j, 0, i, of_mask, 0, 127, 1);
+ do_test_n (j, 0, i, of_mask, 0, 127, -1);
+
+ do_test_n (j, 0, i, of_mask - j / 2, 0, 127, 0);
+ do_test_n (j, 0, i, of_mask - j * 2, 0, 127, 1);
+ do_test_n (j, 0, i, of_mask - j, 0, 127, -1);
+
+ do_test_n (j / 2, j, i, of_mask, 0, 127, 0);
+ do_test_n (j / 2, j, i, of_mask, 0, 127, 1);
+ do_test_n (j / 2, j, i, of_mask, 0, 127, -1);
+
+ do_test_n (j / 2, j, i, of_mask - j, 0, 127, 0);
+ do_test_n (j / 2, j, i, of_mask - j / 2, 0, 127, 1);
+ do_test_n (j / 2, j, i, of_mask - j * 2, 0, 127, -1);
+
+ do_test_n (0, j, i, of_mask - j * 2, 0, 127, 0);
+ do_test_n (0, j, i, of_mask - j, 0, 127, 1);
+ do_test_n (0, j, i, of_mask - j / 2, 0, 127, -1);
+
+ do_test_n (getpagesize () - j - 1, 0, i, of_mask, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, 0, i, of_mask, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, 0, i, of_mask, 0, 127, -1);
+
+ do_test_n (getpagesize () - j - 1, 0, i, of_mask - j / 2, 0, 127,
+ 0);
+ do_test_n (getpagesize () - j - 1, 0, i, of_mask - j * 2, 0, 127,
+ 1);
+ do_test_n (getpagesize () - j - 1, 0, i, of_mask - j, 0, 127,
+ -1);
+
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1, i,
+ of_mask, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1, i,
+ of_mask, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1, i,
+ of_mask, 0, 127, -1);
+
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1, i,
+ of_mask - j, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1, i,
+ of_mask - j / 2, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1, i,
+ of_mask - j * 2, 0, 127, -1);
+ }
+
+ for (i = 1; i < TEST_LEN; i += i)
+ {
+ do_test_n (j, 0, i - 1, of_mask, 0, 127, 0);
+ do_test_n (j, 0, i - 1, of_mask, 0, 127, 1);
+ do_test_n (j, 0, i - 1, of_mask, 0, 127, -1);
+
+ do_test_n (j, 0, i - 1, of_mask - j / 2, 0, 127, 0);
+ do_test_n (j, 0, i - 1, of_mask - j * 2, 0, 127, 1);
+ do_test_n (j, 0, i - 1, of_mask - j, 0, 127, -1);
+
+ do_test_n (j / 2, j, i - 1, of_mask, 0, 127, 0);
+ do_test_n (j / 2, j, i - 1, of_mask, 0, 127, 1);
+ do_test_n (j / 2, j, i - 1, of_mask, 0, 127, -1);
+
+ do_test_n (j / 2, j, i - 1, of_mask - j, 0, 127, 0);
+ do_test_n (j / 2, j, i - 1, of_mask - j / 2, 0, 127, 1);
+ do_test_n (j / 2, j, i - 1, of_mask - j * 2, 0, 127, -1);
+
+ do_test_n (0, j, i - 1, of_mask - j * 2, 0, 127, 0);
+ do_test_n (0, j, i - 1, of_mask - j, 0, 127, 1);
+ do_test_n (0, j, i - 1, of_mask - j / 2, 0, 127, -1);
+
+ do_test_n (getpagesize () - j - 1, 0, i - 1, of_mask, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, 0, i - 1, of_mask, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, 0, i - 1, of_mask, 0, 127,
+ -1);
+
+ do_test_n (getpagesize () - j - 1, 0, i - 1, of_mask - j / 2, 0,
+ 127, 0);
+ do_test_n (getpagesize () - j - 1, 0, i - 1, of_mask - j * 2, 0,
+ 127, 1);
+ do_test_n (getpagesize () - j - 1, 0, i - 1, of_mask - j, 0, 127,
+ -1);
+
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1,
+ i - 1, of_mask, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1,
+ i - 1, of_mask, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1,
+ i - 1, of_mask, 0, 127, -1);
+
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1,
+ i - 1, of_mask - j, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1,
+ i - 1, of_mask - j / 2, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, getpagesize () - 2 * j - 1,
+ i - 1, of_mask - j * 2, 0, 127, -1);
+ }
+ }
+ }
+}
+
int
test_main (void)
{
- size_t i;
+ size_t i, j;
test_init ();
@@ -470,6 +599,99 @@ test_main (void)
do_test_limit (0, 0, 15 - i, 16 - i, 255, -1);
}
+ for (j = 0; j < 160; ++j)
+ {
+ for (i = 0; i < TEST_LEN;)
+ {
+ do_test_n (getpagesize () - j - 1, 0, i, i + 1, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, 0, i, i + 1, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, 0, i, i + 1, 0, 127, -1);
+
+ do_test_n (getpagesize () - j - 1, 0, i, i, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, 0, i, i - 1, 0, 127, 0);
+
+ do_test_n (getpagesize () - j - 1, 0, i, ULONG_MAX, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, 0, i, ULONG_MAX, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, 0, i, ULONG_MAX, 0, 127, -1);
+
+ do_test_n (getpagesize () - j - 1, 0, i, ULONG_MAX - i, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, 0, i, ULONG_MAX - i, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, 0, i, ULONG_MAX - i, 0, 127, -1);
+
+ do_test_n (getpagesize () - j - 1, j, i, i + 1, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, j, i, i + 1, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, j, i, i + 1, 0, 127, -1);
+
+ do_test_n (getpagesize () - j - 1, j, i, i, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, j, i, i - 1, 0, 127, 0);
+
+ do_test_n (getpagesize () - j - 1, j, i, ULONG_MAX, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, j, i, ULONG_MAX, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, j, i, ULONG_MAX, 0, 127, -1);
+
+ do_test_n (getpagesize () - j - 1, j, i, ULONG_MAX - i, 0, 127, 0);
+ do_test_n (getpagesize () - j - 1, j, i, ULONG_MAX - i, 0, 127, 1);
+ do_test_n (getpagesize () - j - 1, j, i, ULONG_MAX - i, 0, 127, -1);
+
+ do_test_n (0, getpagesize () - j - 1, i, i + 1, 0, 127, 0);
+ do_test_n (0, getpagesize () - j - 1, i, i + 1, 0, 127, 1);
+ do_test_n (0, getpagesize () - j - 1, i, i + 1, 0, 127, -1);
+
+ do_test_n (0, getpagesize () - j - 1, i, i, 0, 127, 0);
+ do_test_n (0, getpagesize () - j - 1, i, i - 1, 0, 127, 0);
+
+ do_test_n (0, getpagesize () - j - 1, i, ULONG_MAX, 0, 127, 0);
+ do_test_n (0, getpagesize () - j - 1, i, ULONG_MAX, 0, 127, 1);
+ do_test_n (0, getpagesize () - j - 1, i, ULONG_MAX, 0, 127, -1);
+
+ do_test_n (0, getpagesize () - j - 1, i, ULONG_MAX - i, 0, 127, 0);
+ do_test_n (0, getpagesize () - j - 1, i, ULONG_MAX - i, 0, 127, 1);
+ do_test_n (0, getpagesize () - j - 1, i, ULONG_MAX - i, 0, 127, -1);
+
+ do_test_n (j, getpagesize () - j - 1, i, i + 1, 0, 127, 0);
+ do_test_n (j, getpagesize () - j - 1, i, i + 1, 0, 127, 1);
+ do_test_n (j, getpagesize () - j - 1, i, i + 1, 0, 127, -1);
+
+ do_test_n (j, getpagesize () - j - 1, i, i, 0, 127, 0);
+ do_test_n (j, getpagesize () - j - 1, i, i - 1, 0, 127, 0);
+
+ do_test_n (j, getpagesize () - j - 1, i, ULONG_MAX, 0, 127, 0);
+ do_test_n (j, getpagesize () - j - 1, i, ULONG_MAX, 0, 127, 1);
+ do_test_n (j, getpagesize () - j - 1, i, ULONG_MAX, 0, 127, -1);
+
+ do_test_n (j, getpagesize () - j - 1, i, ULONG_MAX - i, 0, 127, 0);
+ do_test_n (j, getpagesize () - j - 1, i, ULONG_MAX - i, 0, 127, 1);
+ do_test_n (j, getpagesize () - j - 1, i, ULONG_MAX - i, 0, 127, -1);
+ if (i < 32)
+ {
+ i += 1;
+ }
+ else if (i < 161)
+ {
+ i += 7;
+ }
+ else if (i + 161 < TEST_LEN)
+ {
+ i += 31;
+ i *= 17;
+ i /= 16;
+ if (i + 161 > TEST_LEN)
+ {
+ i = TEST_LEN - 160;
+ }
+ }
+ else if (i + 32 < TEST_LEN)
+ {
+ i += 7;
+ }
+ else
+ {
+ i += 1;
+ }
+ }
+ }
+
+ check_overflow ();
do_random_tests ();
return ret;
}
--
2.25.1
next prev parent reply other threads:[~2022-01-10 0:27 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-09 12:29 [PATCH v1 1/5] x86: Optimize strcmp-avx2.S and fix for [BZ# 28755] Noah Goldstein
2022-01-09 12:29 ` [PATCH v1 2/5] x86: Optimize strcmp-evex.S " Noah Goldstein
2022-01-09 12:29 ` [PATCH v1 3/5] string: remove stupid_[strcmp, strncmp, wcscmp, wcsncmp] Noah Goldstein
2022-01-09 12:29 ` [PATCH v1 4/5] string: Improve coverage in test-strcmp.c and test-strncmp.c Noah Goldstein
2022-01-09 12:29 ` [PATCH v1 5/5] benchtests: Add more coverage for strcmp and strncmp benchmarks Noah Goldstein
2022-01-09 12:35 ` [PATCH v1 1/5] x86: Optimize strcmp-avx2.S and fix for [BZ# 28755] Noah Goldstein
2022-01-09 14:07 ` H.J. Lu
2022-01-10 0:29 ` Noah Goldstein
2022-01-10 0:27 ` [PATCH v2 1/7] x86: Fix __wcsncmp_avx2 in strcmp-avx2.S " Noah Goldstein
2022-01-10 0:27 ` [PATCH v2 2/7] x86: Fix __wcsncmp_evex in strcmp-evex.S " Noah Goldstein
2022-01-10 0:35 ` H.J. Lu
2022-01-10 0:27 ` [PATCH v2 3/7] string/test-str*cmp: remove stupid_[strcmp, strncmp, wcscmp, wcsncmp] Noah Goldstein
2022-01-10 0:37 ` H.J. Lu
2022-01-10 0:27 ` Noah Goldstein [this message]
2022-01-10 0:38 ` [PATCH v2 4/7] string: Improve coverage in test-strcmp.c and test-strncmp.c H.J. Lu
2022-01-10 2:51 ` Noah Goldstein
2022-01-10 0:27 ` [PATCH v2 5/7] x86: Optimize strcmp-avx2.S Noah Goldstein
2022-01-10 0:41 ` H.J. Lu
2022-01-10 1:06 ` Noah Goldstein
2022-01-10 1:58 ` H.J. Lu
2022-01-10 2:54 ` Noah Goldstein
2022-01-10 0:27 ` [PATCH v2 6/7] x86: Optimize strcmp-evex.S Noah Goldstein
2022-01-10 0:41 ` H.J. Lu
2022-01-10 0:27 ` [PATCH v2 7/7] benchtests: Add more coverage for strcmp and strncmp benchmarks Noah Goldstein
2022-01-10 0:34 ` [PATCH v2 1/7] x86: Fix __wcsncmp_avx2 in strcmp-avx2.S [BZ# 28755] H.J. Lu
2022-01-10 21:35 ` [PATCH v3 " Noah Goldstein
2022-01-10 21:35 ` [PATCH v3 2/7] x86: Fix __wcsncmp_evex in strcmp-evex.S " Noah Goldstein
2022-01-11 2:15 ` H.J. Lu
2022-01-26 22:04 ` H.J. Lu
2022-04-29 22:05 ` Sunil Pandey
2022-01-10 21:35 ` [PATCH v3 3/7] string/test-str*cmp: remove stupid_[strcmp, strncmp, wcscmp, wcsncmp] Noah Goldstein
2022-01-10 21:35 ` [PATCH v3 4/7] string: Improve coverage in test-strcmp.c and test-strncmp.c Noah Goldstein
2022-01-10 21:35 ` [PATCH v3 5/7] x86: Optimize strcmp-avx2.S Noah Goldstein
2022-02-14 14:10 ` Andreas Schwab
2022-02-14 18:23 ` H.J. Lu
2022-02-14 19:16 ` Andreas Schwab
2022-02-14 19:30 ` H.J. Lu
2022-02-14 19:35 ` Andreas Schwab
2022-02-14 20:59 ` H.J. Lu
2022-02-14 21:10 ` H.J. Lu
2022-02-15 11:11 ` Andreas Schwab
2022-02-15 12:55 ` Andreas Schwab
2022-02-15 12:58 ` Noah Goldstein
2022-02-15 13:09 ` Noah Goldstein
2022-02-15 13:32 ` Noah Goldstein
2022-02-15 13:37 ` Noah Goldstein
2022-02-15 16:33 ` Noah Goldstein
2022-02-14 23:42 ` Noah Goldstein
2022-02-15 10:43 ` Andreas Schwab
2022-02-15 11:22 ` Andreas Schwab
2022-02-15 11:28 ` Noah Goldstein
2022-02-15 12:24 ` Andreas Schwab
2022-01-10 21:35 ` [PATCH v3 6/7] x86: Optimize strcmp-evex.S Noah Goldstein
2022-01-10 21:35 ` [PATCH v3 7/7] benchtests: Add more coverage for strcmp and strncmp benchmarks Noah Goldstein
2022-01-11 2:15 ` [PATCH v3 1/7] x86: Fix __wcsncmp_avx2 in strcmp-avx2.S [BZ# 28755] H.J. Lu
2022-01-26 22:05 ` H.J. Lu
2022-01-27 4:29 ` H.J. Lu
2022-01-27 5:10 ` H.J. Lu
2022-01-27 5:52 ` Noah Goldstein
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