#define MEMORY_MOVE_COST(MODE,CLASS,IN) 4
#endif
#endif
-extern int memory_move_secondary_cost PARAMS ((enum machine_mode, enum reg_class, int));
+extern int memory_move_secondary_cost (enum machine_mode, enum reg_class, int);
/* Maximum number of reloads we can need. */
#define MAX_RELOADS (2 * MAX_RECOG_OPERANDS * (MAX_REGS_PER_ADDRESS + 1))
reloads; usually secondary reloads
RELOAD_OTHER none of the above, usually multiple uses
RELOAD_FOR_OTHER_ADDRESS reload for part of the address of an input
- that is marked RELOAD_OTHER.
+ that is marked RELOAD_OTHER.
This used to be "enum reload_when_needed" but some debuggers have trouble
with an enum tag and variable of the same name. */
enum reload_type
{
- RELOAD_FOR_INPUT, RELOAD_FOR_OUTPUT, RELOAD_FOR_INSN,
+ RELOAD_FOR_INPUT, RELOAD_FOR_OUTPUT, RELOAD_FOR_INSN,
RELOAD_FOR_INPUT_ADDRESS, RELOAD_FOR_INPADDR_ADDRESS,
RELOAD_FOR_OUTPUT_ADDRESS, RELOAD_FOR_OUTADDR_ADDRESS,
RELOAD_FOR_OPERAND_ADDRESS, RELOAD_FOR_OPADDR_ADDR,
addressing an output, for addressing a non-reloaded mem ref, or for
unspecified purposes (i.e., more than one of the above). */
enum reload_type when_needed;
-
+
/* Nonzero for an optional reload. Optional reloads are ignored unless the
value is already sitting in a register. */
unsigned int optional:1;
extern int n_reloads;
#endif
+extern GTY (()) struct varray_head_tag *reg_equiv_memory_loc_varray;
extern rtx *reg_equiv_constant;
extern rtx *reg_equiv_memory_loc;
extern rtx *reg_equiv_address;
/* This structure describes instructions which are relevant for reload.
Apart from all regular insns, this also includes CODE_LABELs, since they
must be examined for register elimination. */
-struct insn_chain
+struct insn_chain
{
/* Links to the neighbor instructions. */
struct insn_chain *next, *prev;
extern struct insn_chain *reload_insn_chain;
/* Allocate a new insn_chain structure. */
-extern struct insn_chain *new_insn_chain PARAMS ((void));
+extern struct insn_chain *new_insn_chain (void);
-extern void compute_use_by_pseudos PARAMS ((HARD_REG_SET *, regset));
+extern void compute_use_by_pseudos (HARD_REG_SET *, regset);
#endif
/* Functions from reload.c: */
-/* Return a memory location that will be used to copy X in mode MODE.
+/* Return a memory location that will be used to copy X in mode MODE.
If we haven't already made a location for this mode in this insn,
call find_reloads_address on the location being returned. */
-extern rtx get_secondary_mem PARAMS ((rtx, enum machine_mode,
- int, enum reload_type));
+extern rtx get_secondary_mem (rtx, enum machine_mode, int, enum reload_type);
/* Clear any secondary memory locations we've made. */
-extern void clear_secondary_mem PARAMS ((void));
+extern void clear_secondary_mem (void);
/* Transfer all replacements that used to be in reload FROM to be in
reload TO. */
-extern void transfer_replacements PARAMS ((int, int));
+extern void transfer_replacements (int, int);
/* IN_RTX is the value loaded by a reload that we now decided to inherit,
or a subpart of it. If we have any replacements registered for IN_RTX,
cancel the reloads that were supposed to load them.
Return nonzero if we canceled any reloads. */
-extern int remove_address_replacements PARAMS ((rtx in_rtx));
+extern int remove_address_replacements (rtx in_rtx);
/* Like rtx_equal_p except that it allows a REG and a SUBREG to match
if they are the same hard reg, and has special hacks for
autoincrement and autodecrement. */
-extern int operands_match_p PARAMS ((rtx, rtx));
+extern int operands_match_p (rtx, rtx);
/* Return 1 if altering OP will not modify the value of CLOBBER. */
-extern int safe_from_earlyclobber PARAMS ((rtx, rtx));
+extern int safe_from_earlyclobber (rtx, rtx);
/* Search the body of INSN for values that need reloading and record them
with push_reload. REPLACE nonzero means record also where the values occur
so that subst_reloads can be used. */
-extern int find_reloads PARAMS ((rtx, int, int, int, short *));
+extern int find_reloads (rtx, int, int, int, short *);
/* Compute the sum of X and Y, making canonicalizations assumed in an
address, namely: sum constant integers, surround the sum of two
constants with a CONST, put the constant as the second operand, and
group the constant on the outermost sum. */
-extern rtx form_sum PARAMS ((rtx, rtx));
+extern rtx form_sum (rtx, rtx);
/* Substitute into the current INSN the registers into which we have reloaded
the things that need reloading. */
-extern void subst_reloads PARAMS ((rtx));
+extern void subst_reloads (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
the RTL. */
-extern void copy_replacements PARAMS ((rtx, rtx));
+extern void copy_replacements (rtx, rtx);
/* Change any replacements being done to *X to be done to *Y */
-extern void move_replacements PARAMS ((rtx *x, rtx *y));
+extern void move_replacements (rtx *x, rtx *y);
/* If LOC was scheduled to be replaced by something, return the replacement.
Otherwise, return *LOC. */
-extern rtx find_replacement PARAMS ((rtx *));
+extern rtx find_replacement (rtx *);
/* 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 ((unsigned int, unsigned int,
- rtx, rtx *));
+extern int refers_to_regno_for_reload_p (unsigned int, unsigned int,
+ rtx, rtx *);
/* Nonzero if modifying X will affect IN. */
-extern int reg_overlap_mentioned_for_reload_p PARAMS ((rtx, rtx));
+extern int reg_overlap_mentioned_for_reload_p (rtx, rtx);
/* Return nonzero if anything in X contains a MEM. Look also for pseudo
registers. */
-extern int refers_to_mem_for_reload_p PARAMS ((rtx));
+extern int refers_to_mem_for_reload_p (rtx);
/* Check the insns before INSN to see if there is a suitable register
containing the same value as GOAL. */
-extern rtx find_equiv_reg PARAMS ((rtx, rtx, enum reg_class, int, short *,
- int, enum machine_mode));
+extern rtx find_equiv_reg (rtx, rtx, enum reg_class, int, short *,
+ int, enum machine_mode);
/* Return 1 if register REGNO is the subject of a clobber in insn INSN. */
-extern int regno_clobbered_p PARAMS ((unsigned int, rtx, enum machine_mode,
- int));
+extern int regno_clobbered_p (unsigned int, rtx, enum machine_mode, int);
/* Return 1 if X is an operand of an insn that is being earlyclobbered. */
-extern int earlyclobber_operand_p PARAMS ((rtx));
+extern int earlyclobber_operand_p (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));
+extern int push_reload (rtx, rtx, rtx *, rtx *, enum reg_class,
+ enum machine_mode, enum machine_mode,
+ int, int, int, enum reload_type);
-/* Functions in reload1.c: */
+/* Functions in postreload.c: */
+extern void reload_cse_regs (rtx);
-extern void reload_cse_regs PARAMS ((rtx));
-extern int reloads_conflict PARAMS ((int, int));
+/* Functions in reload1.c: */
+extern int reloads_conflict (int, int);
/* Initialize the reload pass once per compilation. */
-extern void init_reload PARAMS ((void));
+extern void init_reload (void);
/* The reload pass itself. */
-extern int reload PARAMS ((rtx, int));
+extern int reload (rtx, int);
/* Mark the slots in regs_ever_live for the hard regs
used by pseudo-reg number REGNO. */
-extern void mark_home_live PARAMS ((int));
+extern void mark_home_live (int);
/* Scan X and replace any eliminable registers (such as fp) with a
replacement (such as sp), plus an offset. */
-extern rtx eliminate_regs PARAMS ((rtx, enum machine_mode, rtx));
+extern rtx eliminate_regs (rtx, enum machine_mode, rtx);
/* Emit code to perform a reload from IN (which may be a reload register) to
OUT (which may also be a reload register). IN or OUT is from operand
OPNUM with reload type TYPE. */
-extern rtx gen_reload PARAMS ((rtx, rtx, int, enum reload_type));
+extern rtx gen_reload (rtx, rtx, int, enum reload_type);
/* Deallocate the reload register used by reload number R. */
-extern void deallocate_reload_reg PARAMS ((int r));
+extern void deallocate_reload_reg (int r);
/* Functions in caller-save.c: */
/* Initialize for caller-save. */
-extern void init_caller_save PARAMS ((void));
+extern void init_caller_save (void);
/* Initialize save areas by showing that we haven't allocated any yet. */
-extern void init_save_areas PARAMS ((void));
+extern void init_save_areas (void);
/* Allocate save areas for any hard registers that might need saving. */
-extern void setup_save_areas PARAMS ((void));
+extern void setup_save_areas (void);
/* Find the places where hard regs are live across calls and save them. */
-extern void save_call_clobbered_regs PARAMS ((void));
+extern void save_call_clobbered_regs (void);
/* Replace (subreg (reg)) with the appropriate (reg) for any operands. */
-extern void cleanup_subreg_operands PARAMS ((rtx));
+extern void cleanup_subreg_operands (rtx);
/* Debugging support. */
-extern void debug_reload_to_stream PARAMS ((FILE *));
-extern void debug_reload PARAMS ((void));
+extern void debug_reload_to_stream (FILE *);
+extern void debug_reload (void);
/* Compute the actual register we should reload to, in case we're
reloading to/from a register that is wider than a word. */
-extern rtx reload_adjust_reg_for_mode PARAMS ((rtx, enum machine_mode));
+extern rtx reload_adjust_reg_for_mode (rtx, enum machine_mode);
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