I am reading the source code of i386. I am going to add a new attribute [[gnu::ms_abi_spread_register]] to the GCC compiler and fixes the abi efficiency of std::span on ms_abi.
gcc/i386.c at master ยท gcc-mirror/gcc (github.com)<https://github.com/gcc-mirror/gcc/blob/master/gcc/config/i386/i386.c> I think fix it asap would be good, or we will be in deep trouble for abis in future. Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10