-/**
- * Check all parameters and determine the maximum number of parameters
- * to pass in gp regs resp. in fp regs.
- *
- * @param n The number of parameters
- * @param modes The list of the parameter modes
- * @param n_int Holds the number of int parameters to be passed in regs after the call
- * @param n_float Holds the number of float parameters to be passed in regs after the call
- * @return The number of the last parameter to be passed in register
- */
-int ia32_get_n_regparam_class(int n, ir_mode **modes, int *n_int, int *n_float) {
- int i, finished = 0;
-
- for (i = 0; i < n && !finished; i++) {
- if (mode_is_int(modes[i])) {
- *n_int = *n_int + 1;
- }
- else if (mode_is_float(modes[i])) {
- *n_float = *n_float + 1;
- }
- else {
- finished = 1;
- }
-
- /* test for maximum */
- if (*n_int == maxnum_gpreg_args || *n_float == maxnum_fpreg_args) {
- finished = 1;
- }
- }
-
- return i - 1;
-}
-
-
-/**
- * Returns the register for parameter nr.
- *
- * @param n The number of parameters
- * @param modes The list of the parameter modes
- * @param nr The number of the parameter to return the requirements for
- * @param cc The calling convention
- * @return The register
- */
-const arch_register_t *ia32_get_RegParam_reg(int n, ir_mode **modes, long nr, unsigned cc) {
- const arch_register_t **current_gpreg_param_reg;
- const arch_register_t **current_fpreg_param_reg;
- const arch_register_t *param_reg = NULL;
- int n_gpregparam = 0;
- int n_fpregparam = 0;
- int i, done = 0;
- int cur_gp_idx = 0;
- int cur_fp_idx = 0;
- int biggest_n = ia32_get_n_regparam_class(n, modes, &n_gpregparam, &n_fpregparam);
-
- /* Check if parameter #nr is in range for passing in register */
- if (nr <= biggest_n) {
- current_gpreg_param_reg = gpreg_param_reg_std;
- current_fpreg_param_reg = fpreg_param_reg_std;
-
- if (cc & cc_this_call) {
- current_gpreg_param_reg = gpreg_param_reg_this;
- current_fpreg_param_reg = fpreg_param_reg_this;
- }
-
- /* loop over all parameters and determine whether its a int or float register parameter */
- for (i = 0; i < nr && !done && (cc & cc_reg_param); i++) {
- if (mode_is_int(modes[i]) && cur_gp_idx < maxnum_gpreg_args) {
- /* param can be passed in general purpose register and we have some registers left */
- cur_gp_idx++;
- }
- else if (mode_is_float(modes[i]) && cur_fp_idx < maxnum_fpreg_args) {
- /* param can be passed in floating point register and we have some registers left */
- assert(current_gpreg_param_reg[cur_fp_idx] && "'this' pointer cannot be passed as float");
- cur_fp_idx++;
- }
- }
-
- /* now: i == nr, that's the parameter requirement we want */
- if (mode_is_int(modes[i]) && cur_gp_idx < maxnum_gpreg_args) {
- /* parameter #nr can be passed in general purpose register */
- param_reg = current_gpreg_param_reg[i];
- }
- else if (mode_is_float(modes[i]) && cur_fp_idx < maxnum_fpreg_args) {
- /* parameter #nr can be passed in floating point register */
- param_reg = current_fpreg_param_reg[i];
- }
- else {
- assert(0 && "This should not happen!");
- }
- }
-
- return param_reg;
-}
-
-
-
-/**
- * Translates the projnum into a "real" argument position for register
- * requirements dependend on the predecessor.
- */
-long ia32_translate_proj_pos(const ir_node *proj) {
- ir_node *pred = get_Proj_pred(proj);
- long nr = get_Proj_proj(proj);