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- /* Communication between reload.c and reload1.c.
- Copyright (C) 1987 Free Software Foundation, Inc.
-
- This file is part of GNU CC.
-
- GNU CC is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- GNU CC is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU CC; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-
- /* See reload.c and reload1.c for comments on these variables. */
-
- /* Maximum number of reloads we can need. */
- #define MAX_RELOADS (2 * MAX_RECOG_OPERANDS * (MAX_REGS_PER_ADDRESS + 1))
-
- extern rtx reload_in[MAX_RELOADS];
- extern rtx reload_out[MAX_RELOADS];
- extern rtx reload_in_reg[MAX_RELOADS];
- extern enum reg_class reload_reg_class[MAX_RELOADS];
- extern enum machine_mode reload_inmode[MAX_RELOADS];
- extern enum machine_mode reload_outmode[MAX_RELOADS];
- extern char reload_strict_low[MAX_RELOADS];
- extern char reload_optional[MAX_RELOADS];
- extern int reload_inc[MAX_RELOADS];
- extern int reload_needed_for_multiple[MAX_RELOADS];
- extern rtx reload_needed_for[MAX_RELOADS];
- extern int n_reloads;
-
- extern rtx reload_reg_rtx[MAX_RELOADS];
-
- enum reload_when_needed
- {
- RELOAD_FOR_INPUT_RELOAD_ADDRESS,
- RELOAD_FOR_OUTPUT_RELOAD_ADDRESS,
- RELOAD_FOR_OPERAND_ADDRESS,
- RELOAD_OTHER
- };
-
- extern enum reload_when_needed reload_when_needed[MAX_RELOADS];
-
- extern rtx *reg_equiv_constant;
- extern rtx *reg_equiv_address;
- extern rtx *reg_equiv_mem;
-
- /* All the "earlyclobber" operands of the current insn
- are recorded here. */
- extern int n_earlyclobbers;
- extern rtx reload_earlyclobbers[MAX_RECOG_OPERANDS];
-
- /* First uid used by insns created by reload in this function.
- Used in find_equiv_reg. */
- extern int reload_first_uid;
-
- /* Nonzero if an address (plus (reg frame_pointer) (reg ...)) is valid. */
- extern char double_reg_address_ok;
-
- void init_reload ();
- void find_reloads ();
- void subst_reloads ();
-