https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54006
John David Anglin <danglin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |danglin at gcc dot gnu.org --- Comment #10 from John David Anglin <danglin at gcc dot gnu.org> --- The test passes on hppa. The hppa-linux target has a kernel helper to implement compare and swap. The hpux target isn't "lock free". There is a debate as to whether the linux implementation Is "lock free" or not. See PR83638.