632 static const intptr_t kMuSpin        = 0x0040L;  // spinlock protects wait list  variable
638   kGdbMuSpin = kMuSpin,
690     kMuSpin | kMuWriter | kMuWrWait,  // slow_inc_need_zero
722     ForgetSynchEvent(&this->mu_, kMuEvent, kMuSpin);  in ~Mutex()
731   SynchEvent *e = EnsureSynchEvent(&this->mu_, name, kMuEvent, kMuSpin);  in EnableDebugLog()
744     SynchEvent *e = EnsureSynchEvent(&this->mu_, nullptr, kMuEvent, kMuSpin);  in EnableInvariantDebugging()
1063   if ((v & (kMuWait | kMuSpin | kMuWriter | kMuReader)) == kMuWait &&  in TryRemove()
1064       mu_.compare_exchange_strong(v, v | kMuSpin | kMuWriter,  in TryRemove()
1935       if ((v & (kMuSpin|kMuWait)) == 0) {   // no waiters  in LockSlowLoop()
1957                 v, (v & zap_desig_waker[flags & kMuHasBlocked]) | kMuSpin |  in LockSlowLoop()
1964           } while (!mu_.compare_exchange_weak(v, (v & ~kMuSpin) | kMuReader,  in LockSlowLoop()
1977       } else if ((v & kMuSpin) == 0 &&  // attempt to queue ourselves  in LockSlowLoop()
1979                      v, (v & zap_desig_waker[flags & kMuHasBlocked]) | kMuSpin |  in LockSlowLoop()
1992             v, (v & (kMuLow & ~kMuSpin)) | kMuWait | wr_wait |  in LockSlowLoop()
2070     } else if ((v & kMuSpin) == 0 &&  // attempt to get spinlock  in UnlockSlow()
2071                mu_.compare_exchange_strong(v, v | kMuSpin,  in UnlockSlow()
2096           nv = (v & kMuLow & ~clear & ~kMuSpin);  in UnlockSlow()
2366       if ((v & (kMuSpin|kMuWait)) == 0) {       // no waiters  in Fer()
2376       } else if ((v & kMuSpin) == 0 &&  in Fer()
2377                  mu_.compare_exchange_strong(v, v | kMuSpin | kMuWait)) {  in Fer()
2386             (v & kMuLow & ~kMuSpin) | kMuWait |  in Fer()