Chengdu dialect belongs to southwest mandarin and exists as the standard pronunciation of Sichuan dialect, but it is not used in all parts of Chengdu. Outside the main city of Chengdu (southwest of the expressway around the city), Chiguan dialect is actually used in the southwest, while the dialects used in Guanghan and Jianyang in the suburbs of Chengdu are no different from Chengdu dialect.
Chengdu dialect is known as "Wunong Soft Language in Southwest Dialect" because of its softness.