diff options
Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/builtin-bitops-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/builtin-bitops-1.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/builtin-bitops-1.c b/gcc/testsuite/gcc.c-torture/execute/builtin-bitops-1.c new file mode 100644 index 000000000..8c3122cc6 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/builtin-bitops-1.c @@ -0,0 +1,263 @@ +#include <limits.h> +#include <assert.h> + +#if __INT_MAX__ > 2147483647L +# if __INT_MAX__ >= 9223372036854775807L +# define BITSIZEOF_INT 64 +# else +# define BITSIZEOF_INT 32 +# endif +#else +# if __INT_MAX__ >= 2147483647L +# define BITSIZEOF_INT 32 +# else +# define BITSIZEOF_INT 16 +# endif +#endif + +#if __LONG_MAX__ > 2147483647L +# if __LONG_MAX__ >= 9223372036854775807L +# define BITSIZEOF_LONG 64 +# else +# define BITSIZEOF_LONG 32 +# endif +#else +# define BITSIZEOF_LONG 32 +#endif + +#if __LONG_LONG_MAX__ > 2147483647L +# if __LONG_LONG_MAX__ >= 9223372036854775807L +# define BITSIZEOF_LONG_LONG 64 +# else +# define BITSIZEOF_LONG_LONG 32 +# endif +#else +# define BITSIZEOF_LONG_LONG 32 +#endif + +#define MAKE_FUNS(suffix, type) \ +int my_ffs##suffix(type x) { \ + int i; \ + if (x == 0) \ + return 0; \ + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \ + if (x & ((type) 1 << i)) \ + break; \ + return i + 1; \ +} \ + \ +int my_ctz##suffix(type x) { \ + int i; \ + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \ + if (x & ((type) 1 << i)) \ + break; \ + return i; \ +} \ + \ +int my_clz##suffix(type x) { \ + int i; \ + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \ + if (x & ((type) 1 << ((CHAR_BIT * sizeof (type)) - i - 1))) \ + break; \ + return i; \ +} \ + \ +int my_popcount##suffix(type x) { \ + int i; \ + int count = 0; \ + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \ + if (x & ((type) 1 << i)) \ + count++; \ + return count; \ +} \ + \ +int my_parity##suffix(type x) { \ + int i; \ + int count = 0; \ + for (i = 0; i < CHAR_BIT * sizeof (type); i++) \ + if (x & ((type) 1 << i)) \ + count++; \ + return count & 1; \ +} + +MAKE_FUNS (, unsigned); +MAKE_FUNS (l, unsigned long); +MAKE_FUNS (ll, unsigned long long); + +extern void abort (void); +extern void exit (int); + +#define NUMS16 \ + { \ + 0x0000U, \ + 0x0001U, \ + 0x8000U, \ + 0x0002U, \ + 0x4000U, \ + 0x0100U, \ + 0x0080U, \ + 0xa5a5U, \ + 0x5a5aU, \ + 0xcafeU, \ + 0xffffU \ + } + +#define NUMS32 \ + { \ + 0x00000000UL, \ + 0x00000001UL, \ + 0x80000000UL, \ + 0x00000002UL, \ + 0x40000000UL, \ + 0x00010000UL, \ + 0x00008000UL, \ + 0xa5a5a5a5UL, \ + 0x5a5a5a5aUL, \ + 0xcafe0000UL, \ + 0x00cafe00UL, \ + 0x0000cafeUL, \ + 0xffffffffUL \ + } + +#define NUMS64 \ + { \ + 0x0000000000000000ULL, \ + 0x0000000000000001ULL, \ + 0x8000000000000000ULL, \ + 0x0000000000000002ULL, \ + 0x4000000000000000ULL, \ + 0x0000000100000000ULL, \ + 0x0000000080000000ULL, \ + 0xa5a5a5a5a5a5a5a5ULL, \ + 0x5a5a5a5a5a5a5a5aULL, \ + 0xcafecafe00000000ULL, \ + 0x0000cafecafe0000ULL, \ + 0x00000000cafecafeULL, \ + 0xffffffffffffffffULL \ + } + +unsigned int ints[] = +#if BITSIZEOF_INT == 64 +NUMS64; +#elif BITSIZEOF_INT == 32 +NUMS32; +#else +NUMS16; +#endif + +unsigned long longs[] = +#if BITSIZEOF_LONG == 64 +NUMS64; +#else +NUMS32; +#endif + +unsigned long long longlongs[] = +#if BITSIZEOF_LONG_LONG == 64 +NUMS64; +#else +NUMS32; +#endif + +#define N(table) (sizeof (table) / sizeof (table[0])) + +int +main (void) +{ + int i; + + for (i = 0; i < N(ints); i++) + { + if (__builtin_ffs (ints[i]) != my_ffs (ints[i])) + abort (); + if (ints[i] != 0 + && __builtin_clz (ints[i]) != my_clz (ints[i])) + abort (); + if (ints[i] != 0 + && __builtin_ctz (ints[i]) != my_ctz (ints[i])) + abort (); + if (__builtin_popcount (ints[i]) != my_popcount (ints[i])) + abort (); + if (__builtin_parity (ints[i]) != my_parity (ints[i])) + abort (); + } + + for (i = 0; i < N(longs); i++) + { + if (__builtin_ffsl (longs[i]) != my_ffsl (longs[i])) + abort (); + if (longs[i] != 0 + && __builtin_clzl (longs[i]) != my_clzl (longs[i])) + abort (); + if (longs[i] != 0 + && __builtin_ctzl (longs[i]) != my_ctzl (longs[i])) + abort (); + if (__builtin_popcountl (longs[i]) != my_popcountl (longs[i])) + abort (); + if (__builtin_parityl (longs[i]) != my_parityl (longs[i])) + abort (); + } + + for (i = 0; i < N(longlongs); i++) + { + if (__builtin_ffsll (longlongs[i]) != my_ffsll (longlongs[i])) + abort (); + if (longlongs[i] != 0 + && __builtin_clzll (longlongs[i]) != my_clzll (longlongs[i])) + abort (); + if (longlongs[i] != 0 + && __builtin_ctzll (longlongs[i]) != my_ctzll (longlongs[i])) + abort (); + if (__builtin_popcountll (longlongs[i]) != my_popcountll (longlongs[i])) + abort (); + if (__builtin_parityll (longlongs[i]) != my_parityll (longlongs[i])) + abort (); + } + + /* Test constant folding. */ + +#define TEST(x, suffix) \ + if (__builtin_ffs##suffix (x) != my_ffs##suffix (x)) \ + abort (); \ + if (x != 0 && __builtin_clz##suffix (x) != my_clz##suffix (x)) \ + abort (); \ + if (x != 0 && __builtin_ctz##suffix (x) != my_ctz##suffix (x)) \ + abort (); \ + if (__builtin_popcount##suffix (x) != my_popcount##suffix (x)) \ + abort (); \ + if (__builtin_parity##suffix (x) != my_parity##suffix (x)) \ + abort (); + +#if BITSIZEOF_INT == 32 + TEST(0x00000000UL,); + TEST(0x00000001UL,); + TEST(0x80000000UL,); + TEST(0x40000000UL,); + TEST(0x00010000UL,); + TEST(0x00008000UL,); + TEST(0xa5a5a5a5UL,); + TEST(0x5a5a5a5aUL,); + TEST(0xcafe0000UL,); + TEST(0x00cafe00UL,); + TEST(0x0000cafeUL,); + TEST(0xffffffffUL,); +#endif + +#if BITSIZEOF_LONG_LONG == 64 + TEST(0x0000000000000000ULL, ll); + TEST(0x0000000000000001ULL, ll); + TEST(0x8000000000000000ULL, ll); + TEST(0x0000000000000002ULL, ll); + TEST(0x4000000000000000ULL, ll); + TEST(0x0000000100000000ULL, ll); + TEST(0x0000000080000000ULL, ll); + TEST(0xa5a5a5a5a5a5a5a5ULL, ll); + TEST(0x5a5a5a5a5a5a5a5aULL, ll); + TEST(0xcafecafe00000000ULL, ll); + TEST(0x0000cafecafe0000ULL, ll); + TEST(0x00000000cafecafeULL, ll); + TEST(0xffffffffffffffffULL, ll); +#endif + + exit (0); +} |