Tail-call optimization in C is relatively recent (2025)

LWN.net News from the source ContentWeekly EditionArchivesSearchKernelSecurityEvents calendarUnread commentsLWN FAQWrite for us User: Password: | | Log in / Subscribe / Register Tail-call optimization in C is relatively recent Tail-call optimization in C is relatively recent Posted Aug 21, 2025 22:11 UTC (Thu) by anton (subscriber, #25547) Parent article: Python, tail calls, and performance Actually tail calls in C have not been around forever. The C calling convention has been that the callee d