/* Communication between reload.c and reload1.c.
- Copyright (C) 1987, 91-95, 97, 1998 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1997, 1998,
+ 1999, 2000, 2001 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-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 2, or (at your option)
-any later version.
+GCC 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 2, 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.
+GCC 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, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
/* If secondary reloads are the same for inputs and outputs, define those
RELOAD_OTHER, RELOAD_FOR_OTHER_ADDRESS
};
-#ifdef MAX_INSN_CODE
+#ifdef GCC_INSN_CODES_H
/* Each reload is recorded with a structure like this. */
struct reload
{
enum machine_mode mode;
/* the largest number of registers this reload will require. */
- int nregs;
+ unsigned int nregs;
/* Positive amount to increment or decrement by if
reload_in is a PRE_DEC, PRE_INC, POST_DEC, POST_INC.
/* Nonzero if indirect addressing is supported when the innermost MEM is
of the form (MEM (SYMBOL_REF sym)). It is assumed that the level to
- which these are valid is the same as spill_indirect_levels, above. */
+ which these are valid is the same as spill_indirect_levels, above. */
extern char indirect_symref_ok;
extern int num_not_at_initial_offset;
-#ifdef MAX_INSN_CODE
-/* These arrays record the insn_code of insns that may be needed to
- perform input and output reloads of special objects. They provide a
- place to pass a scratch register. */
-extern enum insn_code reload_in_optab[];
-extern enum insn_code reload_out_optab[];
-#endif
-
struct needs
{
/* [0] is normal, [1] is nongroup. */
autoincrement and autodecrement. */
extern int operands_match_p PARAMS ((rtx, rtx));
-/* Return 1 if altering OP will not modify the value of CLOBBER. */
+/* Return 1 if altering OP will not modify the value of CLOBBER. */
extern int safe_from_earlyclobber PARAMS ((rtx, rtx));
/* Search the body of INSN for values that need reloading and record them
/* Substitute into the current INSN the registers into which we have reloaded
the things that need reloading. */
-extern void subst_reloads PARAMS ((void));
+extern void subst_reloads PARAMS ((rtx));
/* Make a copy of any replacements being done into X and move those copies
to locations in Y, a copy of X. We only look at the highest level of
/* Return nonzero if register in range [REGNO, ENDREGNO)
appears either explicitly or implicitly in X
other than being stored into. */
-extern int refers_to_regno_for_reload_p PARAMS ((int, int, rtx, rtx *));
+extern int refers_to_regno_for_reload_p PARAMS ((unsigned int, unsigned int,
+ rtx, rtx *));
/* Nonzero if modifying X will affect IN. */
extern int reg_overlap_mentioned_for_reload_p PARAMS ((rtx, rtx));
int, enum machine_mode));
/* Return 1 if register REGNO is the subject of a clobber in insn INSN. */
-extern int regno_clobbered_p PARAMS ((int, rtx));
+extern int regno_clobbered_p PARAMS ((unsigned int, rtx, enum machine_mode,
+ int));
/* Return 1 if X is an operand of an insn that is being earlyclobbered. */
-int earlyclobber_operand_p PARAMS ((rtx));
+extern int earlyclobber_operand_p PARAMS ((rtx));
+
+/* Record one reload that needs to be performed. */
+extern int push_reload PARAMS ((rtx, rtx, rtx *, rtx *, enum reg_class,
+ enum machine_mode, enum machine_mode,
+ int, int, int, enum reload_type));
/* Functions in reload1.c: */
+extern void reload_cse_regs PARAMS ((rtx));
extern int reloads_conflict PARAMS ((int, int));
-int count_occurrences PARAMS ((rtx, rtx));
-
/* Initialize the reload pass once per compilation. */
extern void init_reload PARAMS ((void));
/* The reload pass itself. */
-extern int reload PARAMS ((rtx, int, FILE *));
+extern int reload PARAMS ((rtx, int));
/* Mark the slots in regs_ever_live for the hard regs
used by pseudo-reg number REGNO. */
/* Replace (subreg (reg)) with the appropriate (reg) for any operands. */
extern void cleanup_subreg_operands PARAMS ((rtx));
+
+/* Debugging support. */
+extern void debug_reload_to_stream PARAMS ((FILE *));
+extern void debug_reload PARAMS ((void));
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