[Bug c++/108564] New: RISCV std::atomic needs libatomics

[raj.khem at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108564

            Bug ID: 108564
           Summary: RISCV std::atomic<bool> needs libatomics
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: raj.khem at gmail dot com
  Target Milestone: ---

following test generates a call to __atomic_exchange_1 with gcc trunk ( soon to
be gcc 13 )  if I use std::atomic<int> that seems to not need libatomic but
std::atomic<bool> does need libatomic. Is that expected ?


#include <atomic>

std::atomic<bool> _closed;

void test(void) {
  _closed.exchange(true);
}