Fix as_mut

src/cell/tcell.rs

@@ -77,6 +77,11 @@ impl<T: Default + VSafe, A: MemPool> TCell<T, A> {
         }
     }
 
+    #[inline]
+    pub(crate) fn as_mut(&self) -> &mut T {
+        unsafe { utils::as_mut(self).force() }
+    }
+
     #[inline]
     /// Create a new invalid cell to be used in const functions
     pub const fn new_invalid(v: T) -> Self {

src/cell/vcell.rs

@@ -60,7 +60,7 @@ impl<T: Default + VSafe, A: MemPool> VCell<T, A> {
 
     #[inline]
     pub(crate) fn as_mut(&self) -> &mut T {
-        unsafe { &mut *self.value.get() }
+        unsafe { utils::as_mut(self).force() }
     }
 
     #[inline]

src/sync/mutex.rs

@@ -262,7 +262,7 @@ impl<T, A: MemPool> PMutex<T, A> {
             #[cfg(any(feature = "no_pthread", windows))]
             let result = {
                 let tid = std::thread::current().id().as_u64().get();
-                intrinsics::atomic_cxchg_acqrel(lock, 0, tid).0 == tid
+                intrinsics::atomic_cxchg_acqrel_acquire(lock, 0, tid).0 == tid
             };
 
             if result {
@@ -274,7 +274,7 @@ impl<T, A: MemPool> PMutex<T, A> {
                     libc::pthread_mutex_unlock(lock);
 
                     #[cfg(any(feature = "no_pthread", windows))] 
-                    intrinsics::atomic_store_rel(lock, 0);
+                    intrinsics::atomic_store_release(lock, 0);
 
                     panic!("Cannot have multiple instances of MutexGuard");
                 }