func main() { // Test Bswap first because the other test relies on it // working correctly (to implement bit reversal). for i := range A { x := A[i] y := B[i] X := T.Bswap64(x) // ERROR "intrinsic substitution for Bswap64" Y := T.Bswap64(y) // ERROR "intrinsic substitution for Bswap64" if y != X { logf("Bswap64(0x%08x) expected 0x%08x but got 0x%08x\n", x, y, X) } if x != Y { logf("Bswap64(0x%08x) expected 0x%08x but got 0x%08x\n", y, x, Y) } x32 := uint32(X) y32 := uint32(Y >> 32) X32 := T.Bswap32(x32) // ERROR "intrinsic substitution for Bswap32" Y32 := T.Bswap32(y32) // ERROR "intrinsic substitution for Bswap32" if y32 != X32 { logf("Bswap32(0x%08x) expected 0x%08x but got 0x%08x\n", x32, y32, X32) } if x32 != Y32 { logf("Bswap32(0x%08x) expected 0x%08x but got 0x%08x\n", y32, x32, Y32) } } // Zero is a special case, be sure it is done right. if T.Ctz16(0) != 16 { // ERROR "intrinsic substitution for Ctz16" logf("ctz16(0) != 16") } if T.Ctz32(0) != 32 { // ERROR "intrinsic substitution for Ctz32" logf("ctz32(0) != 32") } if T.Ctz64(0) != 64 { // ERROR "intrinsic substitution for Ctz64" logf("ctz64(0) != 64") } for i := uint64(0); i <= 64; i++ { for j := uint64(1); j <= 255; j += 2 { for k := uint64(1); k <= 65537; k += 128 { x := (j * k) << i test(i, x) } } } }
func TestBswap32(t *testing.T) { x := uint32(0x11223344) y := sys.Bswap32(x) if y != 0x44332211 { t.Errorf("Bswap(%x)=%x, want 0x44332211", x, y) } }