/* ARM-specific builtins */ #include unsigned int x = 0x12345678; unsigned int y = 0xDEADBEEF; double a = 3.14159; unsigned short s = 0x1234; int main(int argc, char ** argv) { unsigned z; printf("fsqrt(%f) = %f\n", a, __builtin_fsqrt(a)); printf ("read_16_rev = %x\n", __builtin_read16_reversed(&s)); printf ("read_32_rev = %x\n", __builtin_read32_reversed(&y)); __builtin_write16_reversed(&s, 0x789A); printf ("after write_16_rev: %x\n", s); __builtin_write32_reversed(&y, 0x12345678); printf ("after write_32_rev: %x\n", y); y = 0; __builtin_write32_reversed(&y, 0x12345678); printf ("CSE write_32_rev: %s\n", y == 0x78563412 ? "ok" : "ERROR"); /* Make sure that ignoring the result of a builtin doesn't cause an internal error */ (void) __builtin_bswap(x); (void) __builtin_fsqrt(a); return 0; }