STACK_GET_MEM_START 2104 ext/mbstring/oniguruma/regexec.c       STACK_GET_MEM_START(mem, stkp); /* should be before push mem-end. */
STACK_GET_MEM_START 2114 ext/mbstring/oniguruma/regexec.c       STACK_GET_MEM_START(mem, stkp);