contrib/gcc/caller-save.c

370   struct insn_chain *chain, *next;
380   for (chain = reload_insn_chain; chain != 0; chain = next)
382       rtx insn = chain->insn;
385       next = chain->next;
387       gcc_assert (!chain->is_caller_save_insn);
410 		  regno += insert_restore (chain, 1, regno, MOVE_MAX_WORDS, save_mode);
422 				       &chain->live_throughout);
433 		(&chain->live_throughout, FIRST_PSEUDO_REGISTER, regno, rsi)
470 		  regno += insert_save (chain, 1, regno, &hard_regs_to_save, save_mode);
480       if (chain->next == 0 || chain->next->block > chain->block)
490 		regno += insert_restore (chain, JUMP_P (insn),
641 insert_restore (struct insn_chain *chain, int before_p, int regno,
696   new = insert_one_insn (chain, before_p, code, pat);
713 insert_save (struct insn_chain *chain, int before_p, int regno,
768   new = insert_one_insn (chain, before_p, code, pat);
784 insert_one_insn (struct insn_chain *chain, int before_p, int code, rtx pat)
786   rtx insn = chain->insn;
799     chain = chain->prev, insn = chain->insn;
807       new->prev = chain->prev;
813       chain->prev = new;
814       new->next = chain;
818       COPY_REG_SET (&new->live_throughout, &chain->live_throughout);
820       for (link = REG_NOTES (chain->insn); link; link = XEXP (link, 1))
839       if (chain->insn == BB_HEAD (BASIC_BLOCK (chain->block)))
840 	BB_HEAD (BASIC_BLOCK (chain->block)) = new->insn;
844       new->next = chain->next;
847       chain->next = new;
848       new->prev = chain;
852       COPY_REG_SET (&new->live_throughout, &chain->live_throughout);
856       note_stores (PATTERN (chain->insn), add_stored_regs,
859       if (chain->insn == BB_END (BASIC_BLOCK (chain->block)))
860 	BB_END (BASIC_BLOCK (chain->block)) = new->insn;
862   new->block = chain->block;