contrib/gcc/integrate.c

216   struct initial_value_struct *ivs = fun->hard_reg_initial_vals;
219   if (ivs == 0)
222   for (i = 0; i < ivs->num_entries; i++)
223     if (rtx_equal_p (ivs->entries[i].pseudo, reg))
224       return ivs->entries[i].hard_reg;
235   struct initial_value_struct *ivs;
242   ivs = cfun->hard_reg_initial_vals;
243   if (ivs == 0)
245       ivs = ggc_alloc (sizeof (initial_value_struct));
246       ivs->num_entries = 0;
247       ivs->max_entries = 5;
248       ivs->entries = ggc_alloc (5 * sizeof (initial_value_pair));
249       cfun->hard_reg_initial_vals = ivs;
252   if (ivs->num_entries >= ivs->max_entries)
254       ivs->max_entries += 5;
255       ivs->entries = ggc_realloc (ivs->entries,
256 				  ivs->max_entries
260   ivs->entries[ivs->num_entries].hard_reg = gen_rtx_REG (mode, regno);
261   ivs->entries[ivs->num_entries].pseudo = gen_reg_rtx (mode);
263   return ivs->entries[ivs->num_entries++].pseudo;
273   struct initial_value_struct *ivs;
276   ivs = cfun->hard_reg_initial_vals;
277   if (ivs != 0)
278     for (i = 0; i < ivs->num_entries; i++)
279       if (GET_MODE (ivs->entries[i].hard_reg) == mode
280 	  && REGNO (ivs->entries[i].hard_reg) == regno)
281 	return ivs->entries[i].pseudo;
289   struct initial_value_struct *ivs = cfun->hard_reg_initial_vals;
293   if (ivs == 0)
297   for (i = 0; i < ivs->num_entries; i++)
298     emit_move_insn (ivs->entries[i].pseudo, ivs->entries[i].hard_reg);
330       struct initial_value_struct *ivs = cfun->hard_reg_initial_vals;
333       if (ivs == 0)
336       for (i = 0; i < ivs->num_entries; i++)
338 	  int regno = REGNO (ivs->entries[i].pseudo);
339 	  rtx x = targetm.allocate_initial_value (ivs->entries[i].hard_reg);
341 	  if (x && REG_N_SETS (REGNO (ivs->entries[i].pseudo)) <= 1)
355 		  REGNO (ivs->entries[i].pseudo) = new_regno;