[SYCL][Native CPU][NFC] Increase safety. #20173
                
     Merged
            
            
          
  Add this suggestion to a batch that can be applied as a single commit.
  This suggestion is invalid because no changes were made to the code.
  Suggestions cannot be applied while the pull request is closed.
  Suggestions cannot be applied while viewing a subset of changes.
  Only one suggestion per line can be applied in a batch.
  Add this suggestion to a batch that can be applied as a single commit.
  Applying suggestions on deleted lines is not supported.
  You must change the existing code in this line in order to create a valid suggestion.
  Outdated suggestions cannot be applied.
  This suggestion has been applied or marked resolved.
  Suggestions cannot be applied from pending reviews.
  Suggestions cannot be applied on multi-line comments.
  Suggestions cannot be applied while the pull request is queued to merge.
  Suggestion cannot be applied right now. Please check back later.
  
    
  
    
Since we rely on LoopMasks[...] not creating new map entries, since they should have been created in advance, use LoopMasks.at(...) instead. This will ensure that if new changes are introduced that result in any loop masks being missing, it will fail reliably and be much easier to debug.
This commit fixes one issue with BOSCC, but this is still NFC as at the moment, BOSCC is never used.