Add #[cold] to QueryIter::next_archetype

src/query.rs

@@ -773,6 +773,7 @@
     /// Advance query to the next archetype
     ///
     /// Outlined from `Iterator::next` for improved iteration performance.
+    #[cold]
     fn next_archetype(&mut self) -> Option<()> {
         let archetype = self.archetypes.next()?;
         let archetype = unsafe { self.world.archetypes_inner().get_unchecked(archetype) };
@@ -1238,12 +1239,12 @@
 
     /// Execute the prepared query
     // The lifetime narrowing here is required for soundness.
     pub fn iter<'i>(&'i mut self) -> PreparedQueryIter<'i, Q> {
         unsafe { PreparedQueryIter::new(self.meta, self.archetypes, self.state.iter()) }
     }
 
     /// Provides random access to the results of the prepared query
     pub fn view<'i>(&'i mut self) -> PreparedView<'i, Q> {
         unsafe { PreparedView::new(self.meta, self.archetypes, self.state.iter(), self.fetch) }
     }
 }