Example #1
0
File: main.go Project: Xiahl1990/go
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)
			}
		}
	}
}
Example #2
0
func TestBswap64(t *testing.T) {
	x := uint64(0x1122334455667788)
	y := sys.Bswap64(x)
	if y != 0x8877665544332211 {
		t.Errorf("Bswap(%x)=%x, want 0x8877665544332211", x, y)
	}
}