Procval register_class : Reg.t -> intval phys_reg : int -> Reg.tval loc_arguments : Cmm.machtype -> Reg.t array * intval loc_results : Cmm.machtype -> Reg.t arrayval loc_parameters : Cmm.machtype -> Reg.t arrayval loc_external_arguments : Cmm.exttype list -> Reg.t array array * intval loc_external_results : Cmm.machtype -> Reg.t arrayval loc_exn_bucket : Reg.tval safe_register_pressure : Mach.operation -> intval max_register_pressure : Mach.operation -> int arrayval destroyed_at_oper : Mach.instruction_desc -> Reg.t arrayval destroyed_at_raise : Reg.t arrayval destroyed_at_reloadretaddr : Reg.t arrayFor a given register class, the DWARF register numbering for that class. Given an allocated register with location Reg n and class reg_class, the returned array contains the corresponding DWARF register number at index n - first_available_register.(reg_class).
The DWARF register number corresponding to the stack pointer.