GCC has this: https://gcc.gnu.org/onlinedocs/libitm/C_002fC_002b_002b-Language-Constructs-for-TM.html https://gcc.gnu.org/onlinedocs/libitm/C_002fC_002b_002b-La

GCC has this: https://gcc.gnu.org/onlinedocs/libitm/C_002fC_002b_002b-Language-Constructs-for-TM.html https://gcc.gnu.org/onlinedocs/libitm/C_002fC_002b_002b-Lang... But I have seen any use for it, besides every GNU/Linux program having code linked in to call _ITM_registerTMCloneTable in case libitm is used.