/* { dg-add-options vect_early_break } */ /* { dg-require-effective-target vect_early_break_hw } */ /* { dg-require-effective-target vect_int } */ /* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" { target { ! "x86_64-*-* i?86-*-*" } } } } */ #include #include #include "tree-vect.h" # define BITSIZEOF_INT 32 # define BITSIZEOF_LONG 64 # define BITSIZEOF_LONG_LONG 64 #define MAKE_FUNS(suffix, type) \ __attribute__((noinline)) \ 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; \ } MAKE_FUNS (, unsigned); extern void abort (void); extern void exit (int); #define NUMS32 \ { \ 0x00000000UL, \ 0x00000001UL, \ 0x80000000UL, \ 0x00000002UL, \ 0x40000000UL, \ 0x00010000UL, \ 0x00008000UL, \ 0xa5a5a5a5UL, \ 0x5a5a5a5aUL, \ 0xcafe0000UL, \ 0x00cafe00UL, \ 0x0000cafeUL, \ 0xffffffffUL \ } unsigned int ints[] = NUMS32; #define N(table) (sizeof (table) / sizeof (table[0])) int main (void) { int i; check_vect (); #pragma GCC novector for (i = 0; i < N(ints); i++) { if (__builtin_ffs (ints[i]) != my_ffs (ints[i])) abort (); } exit (0); }