t.Fatalf("xadduintpr total error, want %d, got %d", 0, total)
	}
}

// Tests that xadduintptr correctly updates 64-bit values. The place where
// we actually do so is mstats.go, functions mSysStat{Inc,Dec}.
func TestXadduintptrOnUint64(t *testing.T) {
	if goarch.BigEndian {
		// On big endian architectures, we never use xadduintptr to update
		// 64-bit values and hence we skip the test.  (Note that functions