bswap(12345678) = 78563412
bswap16(1234) = 3412
clz(12345678) = 3
clzll(12345678) = 35
clzll(1234567812345678) = 3
clzll(78563412) = 33
fsqrt(3.141590) = 1.772453
read_16_rev = 3412
read_32_rev = efbeadde
after write_16_rev: 9a78
after write_32_rev: 78563412
CSE write_32_rev: ok