On 04/07/2017 08:10 PM, Yichao Yu wrote:
On Fri, Apr 7, 2017 at 2:08 PM, fab10 <0xfa...@gmail.com> wrote:It would be usefull to develop in gcc an intrinsic function for the assembly x86 instruction xchg to implement a low level mutex.I believe that's what atomic_exchange is lowered to on x86?
Yes. You can take a look here: https://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html Martin
