diff options
Diffstat (limited to 'string/test-strncmp.c')
| -rw-r--r-- | string/test-strncmp.c | 85 |
1 files changed, 81 insertions, 4 deletions
diff --git a/string/test-strncmp.c b/string/test-strncmp.c index 431b64d6af..5adf0eb311 100644 --- a/string/test-strncmp.c +++ b/string/test-strncmp.c @@ -86,6 +86,65 @@ do_one_test (impl_t *impl, const char *s1, const char *s2, size_t n, } static void +do_test_limit (size_t align1, size_t align2, size_t len, size_t n, int max_char, + int exp_result) +{ + size_t i, align_n; + char *s1, *s2; + + if (n == 0) + { + s1 = (char*)(buf1 + page_size); + s2 = (char*)(buf2 + page_size); + if (HP_TIMING_AVAIL) + printf ("Length %4zd/%4zd:", len, n); + + FOR_EACH_IMPL (impl, 0) + do_one_test (impl, s1, s2, n, 0); + + if (HP_TIMING_AVAIL) + putchar ('\n'); + + return; + } + + align1 &= 15; + align2 &= 15; + align_n = (page_size - n) & 15; + + s1 = (char*)(buf1 + page_size - n); + s2 = (char*)(buf2 + page_size - n); + + if (align1 < align_n) + s1 -= (align_n - align1); + + if (align2 < align_n) + s2 -= (align_n - align2); + + for (i = 0; i < n; i++) + s1[i] = s2[i] = 1 + 23 * i % max_char; + + if (len < n) + { + s1[len] = 0; + s2[len] = 0; + if (exp_result < 0) + s2[len] = 32; + else if (exp_result > 0) + s1[len] = 64; + } + + if (HP_TIMING_AVAIL) + printf ("Length %4zd/%4zd, alignment %2zd/%2zd:", len, n, align1, align2); + + FOR_EACH_IMPL (impl, 0) + do_one_test (impl, s1, s2, n, exp_result); + + if (HP_TIMING_AVAIL) + putchar ('\n'); +} + +static void do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char, int exp_result) { @@ -103,8 +162,8 @@ do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char, if (align2 + n + 1 >= page_size) return; - s1 = buf1 + align1; - s2 = buf2 + align2; + s1 = (char*)(buf1 + align1); + s2 = (char*)(buf2 + align2); for (i = 0; i < n; i++) s1[i] = s2[i] = 1 + 23 * i % max_char; @@ -124,7 +183,7 @@ do_test (size_t align1, size_t align2, size_t len, size_t n, int max_char, printf ("Length %4zd/%4zd, alignment %2zd/%2zd:", len, n, align1, align2); FOR_EACH_IMPL (impl, 0) - do_one_test (impl, s1, s2, n, exp_result); + do_one_test (impl, (char*)s1, (char*)s2, n, exp_result); if (HP_TIMING_AVAIL) putchar ('\n'); @@ -208,7 +267,7 @@ do_random_tests (void) FOR_EACH_IMPL (impl, 1) { - r = CALL (impl, p1 + align1, p2 + align2, size); + r = CALL (impl, (char*)(p1 + align1), (char*)(p2 + align2), size); /* Test whether on 64-bit architectures where ABI requires callee to promote has the promotion been done. */ asm ("" : "=g" (r) : "0" (r)); @@ -271,6 +330,24 @@ test_main (void) do_test (2 * i, i, 8 << i, 16 << i, 255, 0); do_test (2 * i, i, 8 << i, 16 << i, 255, 1); } + + do_test_limit (0, 0, 0, 0, 127, 0); + do_test_limit (4, 0, 21, 20, 127, 0); + do_test_limit (0, 4, 21, 20, 127, 0); + do_test_limit (8, 0, 25, 24, 127, 0); + do_test_limit (0, 8, 25, 24, 127, 0); + + for (i = 0; i < 8; ++i) + { + do_test_limit (0, 0, 17 - i, 16 - i, 127, 0); + do_test_limit (0, 0, 17 - i, 16 - i, 255, 0); + do_test_limit (0, 0, 15 - i, 16 - i, 127, 0); + do_test_limit (0, 0, 15 - i, 16 - i, 127, 1); + do_test_limit (0, 0, 15 - i, 16 - i, 127, -1); + do_test_limit (0, 0, 15 - i, 16 - i, 255, 0); + do_test_limit (0, 0, 15 - i, 16 - i, 255, 1); + do_test_limit (0, 0, 15 - i, 16 - i, 255, -1); + } do_random_tests (); return ret; |