In a large saucepan, saute celery, onion, green pepper and garlic in butter until the vegetables are tender. Add broth, potatoes, carrots, salt, pepper and dill; bring to a boil. , Reduce heat; cover and simmer for 40 minutes or until the vegetables are nearly tender. Stir in the corn, cream and salmon. Simmer for 15 minutes or until heated through. If desired, garnish with bacon, chives and cracked black pepper.