diff options
Diffstat (limited to 'string')
| -rw-r--r-- | string/test-strcmp.c | 355 |
1 files changed, 149 insertions, 206 deletions
diff --git a/string/test-strcmp.c b/string/test-strcmp.c index 908dc27129..b8d85dca79 100644 --- a/string/test-strcmp.c +++ b/string/test-strcmp.c @@ -25,48 +25,58 @@ #ifdef WIDE # include <inttypes.h> # include <wchar.h> -#endif -#ifdef WIDE # define L(str) L##str # define STRCMP wcscmp # define STRCPY wcscpy # define STRLEN wcslen +# define MEMCPY wmemcpy # define SIMPLE_STRCMP simple_wcscmp # define STUPID_STRCMP stupid_wcscmp -typedef uint32_t unsigned_element_type; -typedef uint32_t element_type; -typedef int (*proto_t) (const uint32_t *, const uint32_t *); +# define CHAR wchar_t +# define UCHAR uint32_t +# define CHARBYTES 4 +# define CHARBYTESLOG 2 +# define CHARALIGN __alignof__ (CHAR) +# define MIDCHAR 0x7fffffff +# define LARGECHAR 0xfffffffe #else # define L(str) str # define STRCMP strcmp # define STRCPY strcpy # define STRLEN strlen +# define MEMCPY memcpy # define SIMPLE_STRCMP simple_strcmp # define STUPID_STRCMP stupid_strcmp -typedef unsigned char unsigned_element_type; -typedef char element_type; -typedef int (*proto_t) (const char *, const char *); +# define CHAR char +# define UCHAR unsigned char +# define CHARBYTES 1 +# define CHARBYTESLOG 0 +# define CHARALIGN 1 +# define MIDCHAR 0x7f +# define LARGECHAR 0xfe #endif +typedef int (*proto_t) (const CHAR *, const CHAR *); int -SIMPLE_STRCMP (const unsigned_element_type *s1, const unsigned_element_type *s2) +SIMPLE_STRCMP (const CHAR *s1, const CHAR *s2) { int ret; - while ((ret = *s1 - *s2++) == 0 && *s1++); + while ((ret = *(UCHAR *) s1 - *(UCHAR *) s2++) == 0 && *s1++); return ret; } int -STUPID_STRCMP (const unsigned_element_type *s1, const unsigned_element_type *s2) +STUPID_STRCMP (const CHAR *s1, const CHAR *s2) { - size_t ns1 = STRLEN (s1) + 1, ns2 = STRLEN (s2) + 1; + size_t ns1 = STRLEN (s1) + 1; + size_t ns2 = STRLEN (s2) + 1; size_t n = ns1 < ns2 ? ns1 : ns2; int ret = 0; while (n--) - if ((ret = *s1++ - *s2++) != 0) + if ((ret = *(UCHAR *) s1++ - *(UCHAR *) s2++) != 0) break; return ret; } @@ -77,7 +87,7 @@ IMPL (STRCMP, 1) static int check_result (impl_t *impl, - const element_type *s1, const element_type *s2, + const CHAR *s1, const CHAR *s2, int exp_result) { int result = CALL (impl, s1, s2); @@ -96,7 +106,7 @@ check_result (impl_t *impl, static void do_one_test (impl_t *impl, - const element_type *s1, const element_type *s2, + const CHAR *s1, const CHAR *s2, int exp_result) { if (check_result (impl, s1, s2, exp_result) < 0) @@ -127,46 +137,27 @@ do_test (size_t align1, size_t align2, size_t len, int max_char, { size_t i; - element_type *s1, *s2; + CHAR *s1, *s2; if (len == 0) return; -#ifndef WIDE - align1 &= 7; - if (align1 + len + 1 >= page_size) - return; - - align2 &= 7; - if (align2 + len + 1 >= page_size) - return; - - s1 = (char *) (buf1 + align1); - s2 = (char *) (buf2 + align2); - -#else align1 &= 63; - if (align1 + len * 4 + 4 >= page_size) + if (align1 + (len + 1) * CHARBYTES >= page_size) return; align2 &= 63; - if (align2 + len * 4 + 4 >= page_size) + if (align2 + (len + 1) * CHARBYTES >= page_size) return; /* Put them close to the end of page. */ - i = align1 + 4 * len + 8; - s1 = (uint32_t *) (buf1 + ((page_size - i) / 16 * 16) + align1); - i = align2 + 4 * len + 8; - s2 = (uint32_t *) (buf2 + ((page_size - i) / 16 * 16) + align2); - -#endif + i = align1 + CHARBYTES * (len + 2); + s1 = (CHAR *) (buf1 + ((page_size - i) / 16 * 16) + align1); + i = align2 + CHARBYTES * (len + 2); + s2 = (CHAR *) (buf2 + ((page_size - i) / 16 * 16) + align2); for (i = 0; i < len; i++) -#ifndef WIDE - s1[i] = s2[i] = 1 + 23 * i % max_char; -#else - s1[i] = s2[i] = 1 + 1023 * i % max_char; -#endif + s1[i] = s2[i] = 1 + (23 << ((CHARBYTES - 1) * 8)) * i % max_char; s1[len] = s2[len] = 0; s1[len + 1] = 23; @@ -186,128 +177,111 @@ do_test (size_t align1, size_t align2, size_t len, int max_char, static void do_random_tests (void) { - size_t i, j, n, align1, align2, pos, len1, len2; - int result; - int r; - -#ifndef WIDE - unsigned char *p1 = buf1 + page_size - 512; - unsigned char *p2 = buf2 + page_size - 512; - for (n = 0; n < ITERATIONS; n++) -#else - for (size_t a = 0; a < 4; a++) - for (size_t b = 0; b < 4; b++) - { - uint32_t *p1 = (uint32_t *) (buf1 + page_size - 512 * 4 - a); - uint32_t *p2 = (uint32_t *) (buf2 + page_size - 512 * 4 - b); - - for (n = 0; n < ITERATIONS / 2; n++) -#endif - { - align1 = random () & 31; - if (random () & 1) - align2 = random () & 31; - else - align2 = align1 + (random () & 24); - pos = random () & 511; - j = align1 > align2 ? align1 : align2; - if (pos + j >= 511) - pos = 510 - j - (random () & 7); - len1 = random () & 511; - if (pos >= len1 && (random () & 1)) - len1 = pos + (random () & 7); - if (len1 + j >= 512) - len1 = 511 - j - (random () & 7); - if (pos >= len1) - len2 = len1; - else - len2 = len1 + (len1 != 511 - j ? random () % (511 - j - len1) : 0); - j = (pos > len2 ? pos : len2) + align1 + 64; - if (j > 512) - j = 512; - for (i = 0; i < j; ++i) - { - p1[i] = random () & 255; - if (i < len1 + align1 && !p1[i]) - { - p1[i] = random () & 255; - if (!p1[i]) - p1[i] = 1 + (random () & 127); - } - } - for (i = 0; i < j; ++i) - { - p2[i] = random () & 255; - if (i < len2 + align2 && !p2[i]) - { - p2[i] = random () & 255; - if (!p2[i]) - p2[i] = 1 + (random () & 127); - } - } - - result = 0; -#ifndef WIDE - memcpy (p2 + align2, p1 + align1, pos); -#else - memcpy (p2 + align2, p1 + align1, 4 * pos); -#endif - if (pos < len1) - { - if (p2[align2 + pos] == p1[align1 + pos]) - { - p2[align2 + pos] = random () & 255; - if (p2[align2 + pos] == p1[align1 + pos]) - p2[align2 + pos] = p1[align1 + pos] + 3 + (random () & 127); - } - - if (p1[align1 + pos] < p2[align2 + pos]) - result = -1; - else - result = 1; - } - p1[len1 + align1] = 0; - p2[len2 + align2] = 0; - - FOR_EACH_IMPL (impl, 1) - { - r = CALL (impl, p1 + align1, p2 + align2); - /* Test whether on 64-bit architectures where ABI requires - callee to promote has the promotion been done. */ - asm ("" : "=g" (r) : "0" (r)); - if ((r == 0 && result) - || (r < 0 && result >= 0) - || (r > 0 && result <= 0)) - { - error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd, %zd, %zd) %d != %d, p1 %p p2 %p", - n, impl->name, (size_t) (p1 + align1) & 63, (size_t) (p1 + align2) & 63, len1, len2, pos, r, result, p1, p2); - ret = 1; - } - } - } -#ifdef WIDE - } -#endif + for (size_t a = 0; a < CHARBYTES; a += CHARALIGN) + for (size_t b = 0; b < CHARBYTES; b += CHARALIGN) + { + UCHAR *p1 = (UCHAR *) (buf1 + page_size - 512 * CHARBYTES - a); + UCHAR *p2 = (UCHAR *) (buf2 + page_size - 512 * CHARBYTES - b); + + for (size_t n = 0; n < ITERATIONS; n++) + { + size_t align1 = random () & 31; + size_t align2; + if (random () & 1) + align2 = random () & 31; + else + align2 = align1 + (random () & 24); + size_t pos = random () & 511; + size_t j = align1 > align2 ? align1 : align2; + if (pos + j >= 511) + pos = 510 - j - (random () & 7); + size_t len1 = random () & 511; + if (pos >= len1 && (random () & 1)) + len1 = pos + (random () & 7); + if (len1 + j >= 512) + len1 = 511 - j - (random () & 7); + size_t len2; + if (pos >= len1) + len2 = len1; + else + len2 = len1 + (len1 != 511 - j ? random () % (511 - j - len1) : 0); + j = (pos > len2 ? pos : len2) + align1 + 64; + if (j > 512) + j = 512; + for (size_t i = 0; i < j; ++i) + { + p1[i] = random () & 255; + if (i < len1 + align1 && !p1[i]) + { + p1[i] = random () & 255; + if (!p1[i]) + p1[i] = 1 + (random () & 127); + } + } + for (size_t i = 0; i < j; ++i) + { + p2[i] = random () & 255; + if (i < len2 + align2 && !p2[i]) + { + p2[i] = random () & 255; + if (!p2[i]) + p2[i] = 1 + (random () & 127); + } + } + + int result = 0; + MEMCPY ((CHAR *) (p2 + align2), (CHAR *) (p1 + align1), pos); + if (pos < len1) + { + if (p2[align2 + pos] == p1[align1 + pos]) + { + p2[align2 + pos] = random () & 255; + if (p2[align2 + pos] == p1[align1 + pos]) + p2[align2 + pos] = p1[align1 + pos] + 3 + (random () & 127); + } + + if (p1[align1 + pos] < p2[align2 + pos]) + result = -1; + else + result = 1; + } + p1[len1 + align1] = 0; + p2[len2 + align2] = 0; + + FOR_EACH_IMPL (impl, 1) + { + int r = CALL (impl, (CHAR *) (p1 + align1), (CHAR *) (p2 + align2)); + /* Test whether on 64-bit architectures where ABI requires + callee to promote has the promotion been done. */ + asm ("" : "=g" (r) : "0" (r)); + if ((r == 0 && result) + || (r < 0 && result >= 0) + || (r > 0 && result <= 0)) + { + error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd, %zd, %zd) %d != %d, p1 %p p2 %p", + n, impl->name, (size_t) (p1 + align1) & 63, (size_t) (p1 + align2) & 63, len1, len2, pos, r, result, p1, p2); + ret = 1; + } + } + } + } } static void check (void) { - const element_type *s1 = (element_type *) (buf1 + 0xb2c); - const element_type *s2 = (element_type *) (buf1 + 0xfd8); + CHAR *s1 = (CHAR *) (buf1 + 0xb2c); + CHAR *s2 = (CHAR *) (buf1 + 0xfd8); - size_t i1, i2, l1, l2; - int exp_result; + STRCPY(s1, L("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrs")); + STRCPY(s2, L("abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijkLMNOPQRSTUV")); - STRCPY(s1, L"abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrs"); - STRCPY(s2, L"abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijkLMNOPQRSTUV"); - - l1 = STRLEN (s1); - l2 = STRLEN (s2); - for (i1 = 0; i1 < l1; i1++) - for (i2 = 0; i2 < l2; i2++) + size_t l1 = STRLEN (s1); + size_t l2 = STRLEN (s2); + for (size_t i1 = 0; i1 < l1; i1++) + for (size_t i2 = 0; i2 < l2; i2++) { - exp_result = SIMPLE_STRCMP (s1 + i1, s2 + i2); + int exp_result = SIMPLE_STRCMP (s1 + i1, s2 + i2); FOR_EACH_IMPL (impl, 0) check_result (impl, s1 + i1, s2 + i2, exp_result); } @@ -327,65 +301,34 @@ test_main (void) printf ("\t%s", impl->name); putchar ('\n'); -#ifndef WIDE - for (i = 1; i < 16; ++i) - { - do_test (i, i, i, 127, 0); - do_test (i, i, i, 127, 1); - do_test (i, i, i, 127, -1); - } - - for (i = 1; i < 10; ++i) - { - do_test (0, 0, 2 << i, 127, 0); - do_test (0, 0, 2 << i, 254, 0); - do_test (0, 0, 2 << i, 127, 1); - do_test (0, 0, 2 << i, 254, 1); - do_test (0, 0, 2 << i, 127, -1); - do_test (0, 0, 2 << i, 254, -1); - } - - for (i = 1; i < 8; ++i) - { - do_test (i, 2 * i, 8 << i, 127, 0); - do_test (2 * i, i, 8 << i, 254, 0); - do_test (i, 2 * i, 8 << i, 127, 1); - do_test (2 * i, i, 8 << i, 254, 1); - do_test (i, 2 * i, 8 << i, 127, -1); - do_test (2 * i, i, 8 << i, 254, -1); - } - -#else for (i = 1; i < 32; ++i) { - do_test (i, i, i, 127, 0); - do_test (i, i, i, 127, 1); - do_test (i, i, i, 127, -1); + do_test (CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, 0); + do_test (CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, 1); + do_test (CHARBYTES * i, CHARBYTES * i, i, MIDCHAR, -1); } - for (i = 1; i < 12; ++i) + for (i = 1; i < 10 + CHARBYTESLOG; ++i) { - do_test (0, 0, 2 << i, 127, 0); - do_test (0, 0, 2 << i, 10000, 0); - do_test (0, 0, 2 << i, 127, 1); - do_test (0, 0, 2 << i, 10000, 1); - do_test (0, 0, 2 << i, 127, -1); - do_test (0, 0, 2 << i, 10000, -1); - do_test (0, 4 * i, 2 << i, 127, 1); - do_test (4 * i, 4 * i + 4, 2 << i, 10000, 1); + do_test (0, 0, 2 << i, MIDCHAR, 0); + do_test (0, 0, 2 << i, LARGECHAR, 0); + do_test (0, 0, 2 << i, MIDCHAR, 1); + do_test (0, 0, 2 << i, LARGECHAR, 1); + do_test (0, 0, 2 << i, MIDCHAR, -1); + do_test (0, 0, 2 << i, LARGECHAR, -1); + do_test (0, CHARBYTES * i, 2 << i, MIDCHAR, 1); + do_test (CHARBYTES * i, CHARBYTES * (i + 1), 2 << i, LARGECHAR, 1); } - for (i = 1; i < 9; ++i) + for (i = 1; i < 8; ++i) { - do_test (i, 2 * i, 8 << i, 10000, 0); - do_test (8 * i, 4 * i, 8 << i, 20000, 0); - do_test (i, 2 * i, 8 << i, 30000, 1); - do_test (2 * i, i, 8 << i, 10000, 1); - do_test (4 * i, 4 * i + 4, 8 << i, 20000, -1); - do_test (2 * i, i, 8 << i, 30000, -1); - do_test (4 * i + 4, 4 * i, 8 << i, 10000, 1); + do_test (CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, 0); + do_test (2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, 0); + do_test (CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, 1); + do_test (2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, 1); + do_test (CHARBYTES * i, 2 * CHARBYTES * i, 8 << i, MIDCHAR, -1); + do_test (2 * CHARBYTES * i, CHARBYTES * i, 8 << i, LARGECHAR, -1); } -#endif do_random_tests (); return ret; |