cris.c (cris_init_libfuncs): Handle initialization of library functions for basic atomic compare-and-swap.
* config/cris/cris.c (cris_init_libfuncs): Handle initialization
of library functions for basic atomic compare-and-swap.
* config/cris/cris.h (TARGET_ATOMICS_MAY_CALL_LIBFUNCS): New macro.
* config/cris/cris.opt (munaligned-atomic-may-use-library): New
option.
* config/cris/sync.md ("atomic_fetch_<atomic_op_name><mode>")
("cris_atomic_fetch_<atomic_op_name><mode>_1")
("atomic_compare_and_swap<mode>")
("cris_atomic_compare_and_swap<mode>_1"): Make
conditional on TARGET_ATOMICS_MAY_CALL_LIBFUNCS for
sizes larger than byte.