int main(int argc, char ** argv) { unsigned int x = 0x12345678; unsigned int y = 0xDEADBEEF; unsigned long long xx = 0x1234567812345678ULL; unsigned z; double a = 3.14159; double b = 2.718; double c = 1.414; unsigned short s = 0x1234; printf("mulhw(%x, %x) = %x\n", x, y, __builtin_mulhw(x, y)); printf("mulhwu(%x, %x) = %x\n", x, y, __builtin_mulhwu(x, y)); printf("clz(%x) = %d\n", x, __builtin_clz(x)); printf("clzll(%llx) = %d\n", (unsigned long long) x, __builtin_clzll(x)); printf("clzll(%llx) = %d\n", xx, __builtin_clzll(xx)); z = __builtin_bswap(x); printf("clzll(%lx) = %d\n", z, __builtin_clzll(z)); printf("bswap(%x) = %x\n", x, __builtin_bswap(x)); printf("bswap16(%x) = %x\n", s, __builtin_bswap16(s)); printf("fmadd(%f, %f, %f) = %f\n", a, b, c, __builtin_fmadd(a, b, c)); printf("fmsub(%f, %f, %f) = %f\n", a, b, c, __builtin_fmsub(a, b, c)); printf("fabs(%f) = %f\n", a, __builtin_fabs(a)); printf("fabs(%f) = %f\n", -a, __builtin_fabs(-a)); printf("fsqrt(%f) = %f\n", a, __builtin_fsqrt(a)); printf("frsqrte(%f) = %s\n", a, check_relative_error(1.0 / sqrt(a), __builtin_frsqrte(a), 1./32.)); printf("fres(%f) = %s\n", a, check_relative_error(1.0 / a, __builtin_fres(a), 1./256.)); printf("fsel(%f, %f, %f) = %f\n", a, b, c, __builtin_fsel(a, b, c)); printf("fsel(%f, %f, %f) = %f\n", -a, b, c, __builtin_fsel(-a, b, c)); printf("fcti(%f) = %d\n", a, __builtin_fcti(a)); printf("fcti(%f) = %d\n", b, __builtin_fcti(b)); printf("fcti(%f) = %d\n", c, __builtin_fcti(c)); __builtin_eieio(); __builtin_sync(); __builtin_isync(); printf("isel(%d, %d, %d) = %d\n", 0, x, y, __builtin_isel(0, x, y)); printf("isel(%d, %d, %d) = %d\n", 42, x, y, __builtin_isel(42, x, y)); 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; }
int main(int argc, char ** argv) { unsigned int x = 0x12345678; unsigned int y = 0xDEADBEEF; double a = 3.14159; double b = 2.718; double c = 1.414; unsigned short s = 0x1234; printf("mulhw(%x, %x) = %x\n", x, y, __builtin_mulhw(x, y)); printf("mulhwu(%x, %x) = %x\n", x, y, __builtin_mulhwu(x, y)); printf("cntlz(%x) = %d\n", x, __builtin_clz(x)); printf("bswap(%x) = %x\n", x, __builtin_bswap(x)); printf("bswap16(%x) = %x\n", s, __builtin_bswap16(s)); printf("fmadd(%f, %f, %f) = %f\n", a, b, c, __builtin_fmadd(a, b, c)); printf("fmsub(%f, %f, %f) = %f\n", a, b, c, __builtin_fmsub(a, b, c)); printf("fabs(%f) = %f\n", a, __builtin_fabs(a)); printf("fabs(%f) = %f\n", -a, __builtin_fabs(-a)); printf("fsqrt(%f) = %f\n", a, __builtin_fsqrt(a)); printf("frsqrte(%f) = %f\n", a, __builtin_frsqrte(a)); printf("fres(%f) = %f\n", a, __builtin_fres(a)); printf("fsel(%f, %f, %f) = %f\n", a, b, c, __builtin_fsel(a, b, c)); printf("fsel(%f, %f, %f) = %f\n", -a, b, c, __builtin_fsel(-a, b, c)); printf("fcti(%f) = %d\n", a, __builtin_fcti(a)); printf("fcti(%f) = %d\n", b, __builtin_fcti(b)); printf("fcti(%f) = %d\n", c, __builtin_fcti(c)); __builtin_eieio(); __builtin_sync(); __builtin_isync(); 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"); return 0; }