Hello, I was just reading this: https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html and I believe the explanation regarding bswap32 and bswap64 is unclear. It refers to the explanation of bswap16, but in that case, swapping both halves and reversing the order of bytes constitutes the same action, while in 32-bit and 64-bit values that's not the case. I suggest you add at least a concrete example of those two bswap primitives, e.g. on input 0xaabbccdd for 32-bits and on 0x1122334455667788 for 64 bits. Respectfully, Eyal Rozenberg PS - If this should be a bug report, just let me know.
