2007-07-30 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+ * alias.c (record_set, memory_modified_1): Constify.
+ * bt-load.c (note_btr_set): Likewise.
+ * caller-save.c (mark_set_regs, add_stored_regs): Likewise.
+ * combine.c (set_nonzero_bits_and_sign_copies,
+ expand_field_assignment, record_dead_and_set_regs_1,
+ use_crosses_set_p, reg_dead_at_p_1, can_combine_p,
+ likely_spilled_retval_1): Likewise.
+ * config/frv/frv.c (frv_registers_update_1, frv_io_check_address,
+ frv_io_handle_set): Likewise.
+ * config/mips/mips.c (mips_sim_record_set,
+ vr4130_true_reg_dependence_p_1): Likewise.
+ * config/mt/mt.c (insn_dependent_p_1): Likewise.
+ * config/s390/s390.c (s390_reg_clobbered_rtx): Likewise.
+ * config/sh/sh.c (flow_dependent_p_1): Likewise.
+ * cselib.c (cselib_invalidate_rtx_note_stores): Likewise.
+ * dce.c (mark_nonreg_stores_1, mark_nonreg_stores_2): Likewise.
+ * ddg.c (mark_mem_store): Likewise.
+ * df-problems.c (df_urec_mark_reg_change): Likewise.
+ * function.c (update_epilogue_consts): Likewise.
+ * gcse.c (record_set_info, record_last_set_info,
+ mems_conflict_for_gcse_p, canon_list_insert, reg_set_info,
+ reg_clear_last_set): Likewise.
+ * global.c (mark_reg_store, mark_reg_clobber, reg_becomes_live):
+ Likewise.
+ * jump.c (reversed_comparison_code_parts): Likewise.
+ * local-alloc.c (validate_equiv_mem_from_store, no_equiv,
+ reg_is_set): Likewise.
+ * loop-iv.c (mark_altered): Likewise.
+ * mode-switching.c (reg_becomes_live): Likewise.
+ * optabs.c (no_conflict_move_test): Likewise.
+ * postreload-gcse.c (record_last_set_info, find_mem_conflicts):
+ Likewise.
+ * postreload.c (reload_combine_note_store, move2add_note_store):
+ Likewise.
+ * regmove.c (flags_set_1): Likewise.
+ * regrename.c (note_sets, kill_clobbered_value, kill_set_value):
+ Likewise.
+ * reload1.c (mark_not_eliminable, forget_old_reloads_1):
+ Likewise.
+ * resource.c (update_live_status): Likewise.
+ * rtl.h (set_of, note_stores): Likewise.
+ * rtlanal.c (set_of_1, parms_set, struct set_of_data, set_of,
+ note_stores, parms_set): Likewise.
+ * sched-rgn.c (sets_likely_spilled_1): Likewise.
+ * stack-ptr-mod.c (notice_stack_pointer_modification_1):
+ Likewise.
+ * var-tracking.c (count_stores, add_stores): Likewise.
+
+2007-07-30 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
+
* alias.c (mems_in_disjoint_alias_sets_p,
fixed_scalar_and_varying_struct_p, aliases_everything_p,
nonoverlapping_component_refs_p, nonoverlapping_memrefs_p,
static int rtx_equal_for_memref_p (rtx, rtx);
static int memrefs_conflict_p (int, rtx, int, rtx, HOST_WIDE_INT);
-static void record_set (rtx, rtx, void *);
+static void record_set (rtx, const_rtx, void *);
static int base_alias_check (rtx, rtx, enum machine_mode,
enum machine_mode);
static rtx find_base_value (rtx);
static int nonoverlapping_memrefs_p (const_rtx, const_rtx);
static int write_dependence_p (const_rtx, const_rtx, int);
-static void memory_modified_1 (rtx, rtx, void *);
+static void memory_modified_1 (rtx, const_rtx, void *);
static void record_alias_subset (HOST_WIDE_INT, HOST_WIDE_INT);
/* Set up all info needed to perform alias analysis on memory references. */
static int unique_id;
static void
-record_set (rtx dest, rtx set, void *data ATTRIBUTE_UNUSED)
+record_set (rtx dest, const_rtx set, void *data ATTRIBUTE_UNUSED)
{
unsigned regno;
rtx src;
to be memory reference. */
static bool memory_modified;
static void
-memory_modified_1 (rtx x, rtx pat ATTRIBUTE_UNUSED, void *data)
+memory_modified_1 (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
{
if (MEM_P (x))
{
static int migrate_btr_def (btr_def, int);
static void migrate_btr_defs (enum reg_class, int);
static int can_move_up (basic_block, rtx, int);
-static void note_btr_set (rtx, rtx, void *);
+static void note_btr_set (rtx, const_rtx, void *);
\f
/* The following code performs code motion of target load instructions
(instructions that set branch target registers), to move them
straightforward definitions. DATA points to information about the
current basic block that needs updating. */
static void
-note_btr_set (rtx dest, rtx set ATTRIBUTE_UNUSED, void *data)
+note_btr_set (rtx dest, const_rtx set ATTRIBUTE_UNUSED, void *data)
{
defs_uses_info *info = data;
int regno, end_regno;
static HARD_REG_SET referenced_regs;
-static void mark_set_regs (rtx, rtx, void *);
+static void mark_set_regs (rtx, const_rtx, void *);
static void mark_referenced_regs (rtx);
static int insert_save (struct insn_chain *, int, int, HARD_REG_SET *,
enum machine_mode *);
enum machine_mode *);
static struct insn_chain *insert_one_insn (struct insn_chain *, int, int,
rtx);
-static void add_stored_regs (rtx, rtx, void *);
+static void add_stored_regs (rtx, const_rtx, void *);
\f
static GTY(()) rtx savepat;
static GTY(()) rtx restpat;
been assigned hard regs have had their register number changed already,
so we can ignore pseudos. */
static void
-mark_set_regs (rtx reg, rtx setter ATTRIBUTE_UNUSED, void *data)
+mark_set_regs (rtx reg, const_rtx setter ATTRIBUTE_UNUSED, void *data)
{
int regno, endregno, i;
HARD_REG_SET *this_insn_sets = data;
been assigned hard regs have had their register number changed already,
so we can ignore pseudos. */
static void
-add_stored_regs (rtx reg, rtx setter, void *data)
+add_stored_regs (rtx reg, const_rtx setter, void *data)
{
int regno, endregno, i;
enum machine_mode mode = GET_MODE (reg);
static void do_SUBST_INT (int *, int);
static void init_reg_last (void);
static void setup_incoming_promotions (rtx);
-static void set_nonzero_bits_and_sign_copies (rtx, rtx, void *);
+static void set_nonzero_bits_and_sign_copies (rtx, const_rtx, void *);
static int cant_combine_insn_p (rtx);
static int can_combine_p (rtx, rtx, rtx, rtx, rtx *, rtx *);
static int combinable_i3pat (rtx, rtx *, rtx, rtx, int, rtx *);
static rtx simplify_set (rtx);
static rtx simplify_logical (rtx);
static rtx expand_compound_operation (rtx);
-static rtx expand_field_assignment (rtx);
+static const_rtx expand_field_assignment (const_rtx);
static rtx make_extraction (enum machine_mode, rtx, HOST_WIDE_INT,
rtx, unsigned HOST_WIDE_INT, int, int, int);
static rtx extract_left_shift (rtx, int);
static void update_table_tick (rtx);
static void record_value_for_reg (rtx, rtx, rtx);
static void check_conversions (rtx, rtx);
-static void record_dead_and_set_regs_1 (rtx, rtx, void *);
+static void record_dead_and_set_regs_1 (rtx, const_rtx, void *);
static void record_dead_and_set_regs (rtx);
static int get_last_value_validate (rtx *, rtx, int, int);
static rtx get_last_value (const_rtx);
-static int use_crosses_set_p (rtx, int);
-static void reg_dead_at_p_1 (rtx, rtx, void *);
+static int use_crosses_set_p (const_rtx, int);
+static void reg_dead_at_p_1 (rtx, const_rtx, void *);
static int reg_dead_at_p (rtx, rtx);
static void move_deaths (rtx, rtx, int, rtx, rtx *);
static int reg_bitfield_target_p (rtx, rtx);
by any set of X. */
static void
-set_nonzero_bits_and_sign_copies (rtx x, rtx set, void *data)
+set_nonzero_bits_and_sign_copies (rtx x, const_rtx set, void *data)
{
rtx insn = (rtx) data;
unsigned int num;
rtx *pdest, rtx *psrc)
{
int i;
- rtx set = 0, src, dest;
+ const_rtx set = 0;
+ rtx src, dest;
rtx p;
#ifdef AUTO_INC_DEC
rtx link;
/* Called via note_stores by likely_spilled_retval_p. Remove from info->mask
hard registers that are known to be written to / clobbered in full. */
static void
-likely_spilled_retval_1 (rtx x, rtx set, void *data)
+likely_spilled_retval_1 (rtx x, const_rtx set, void *data)
{
struct likely_spilled_retval_info *info = data;
unsigned regno, nregs;
We half-heartedly support variable positions, but do not at all
support variable lengths. */
-static rtx
-expand_field_assignment (rtx x)
+static const_rtx
+expand_field_assignment (const_rtx x)
{
rtx inner;
rtx pos; /* Always counts from low bit. */
set is occurring. */
static void
-record_dead_and_set_regs_1 (rtx dest, rtx setter, void *data)
+record_dead_and_set_regs_1 (rtx dest, const_rtx setter, void *data)
{
rtx record_dead_insn = (rtx) data;
that is set in an instruction more recent than FROM_LUID. */
static int
-use_crosses_set_p (rtx x, int from_luid)
+use_crosses_set_p (const_rtx x, int from_luid)
{
const char *fmt;
int i;
reg_dead_flag to 1 if X is a CLOBBER and to -1 it is a SET. */
static void
-reg_dead_at_p_1 (rtx dest, rtx x, void *data ATTRIBUTE_UNUSED)
+reg_dead_at_p_1 (rtx dest, const_rtx x, void *data ATTRIBUTE_UNUSED)
{
unsigned int regno, endregno;
static bool frv_regstate_conflict_p (regstate_t, regstate_t);
static int frv_registers_conflict_p_1 (rtx *, void *);
static bool frv_registers_conflict_p (rtx);
-static void frv_registers_update_1 (rtx, rtx, void *);
+static void frv_registers_update_1 (rtx, const_rtx, void *);
static void frv_registers_update (rtx);
static void frv_start_packet (void);
static void frv_start_packet_block (void);
under which X is modified. Update FRV_PACKET accordingly. */
static void
-frv_registers_update_1 (rtx x, rtx pat ATTRIBUTE_UNUSED, void *data)
+frv_registers_update_1 (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
{
unsigned int regno;
if X is a register and *DATA depends on X. */
static void
-frv_io_check_address (rtx x, rtx pat ATTRIBUTE_UNUSED, void *data)
+frv_io_check_address (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
{
rtx *other = data;
Remove every modified register from the set. */
static void
-frv_io_handle_set (rtx x, rtx pat ATTRIBUTE_UNUSED, void *data)
+frv_io_handle_set (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
{
HARD_REG_SET *set = data;
unsigned int regno;
static void mips_sim_wait_regs (struct mips_sim *, rtx);
static void mips_sim_wait_units (struct mips_sim *, rtx);
static void mips_sim_wait_insn (struct mips_sim *, rtx);
-static void mips_sim_record_set (rtx, rtx, void *);
+static void mips_sim_record_set (rtx, const_rtx, void *);
static void mips_sim_issue_insn (struct mips_sim *, rtx);
static void mips_sim_issue_nop (struct mips_sim *);
static void mips_sim_finish_insn (struct mips_sim *, rtx);
static bool mips_strict_argument_naming (CUMULATIVE_ARGS *);
static void mips_macc_chains_record (rtx);
static void mips_macc_chains_reorder (rtx *, int);
-static void vr4130_true_reg_dependence_p_1 (rtx, rtx, void *);
+static void vr4130_true_reg_dependence_p_1 (rtx, const_rtx, void *);
static bool vr4130_true_reg_dependence_p (rtx);
static bool vr4130_swap_insns_p (rtx, rtx);
static void vr4130_reorder (rtx *, int);
in simulation state DATA. */
static void
-mips_sim_record_set (rtx x, rtx pat ATTRIBUTE_UNUSED, void *data)
+mips_sim_record_set (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
{
struct mips_sim *state;
unsigned int i;
if the instruction uses the value of register X. */
static void
-vr4130_true_reg_dependence_p_1 (rtx x, rtx pat ATTRIBUTE_UNUSED, void *data)
+vr4130_true_reg_dependence_p_1 (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
{
rtx *insn_ptr = data;
if (REG_P (x)
/* A helper routine for insn_dependent_p called through note_stores. */
static void
-insn_dependent_p_1 (rtx x, rtx pat ATTRIBUTE_UNUSED, void *data)
+insn_dependent_p_1 (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
{
rtx * pinsn = (rtx *) data;
clobbered hard regs in SETREG. */
static void
-s390_reg_clobbered_rtx (rtx setreg, rtx set_insn ATTRIBUTE_UNUSED, void *data)
+s390_reg_clobbered_rtx (rtx setreg, const_rtx set_insn ATTRIBUTE_UNUSED, void *data)
{
int *regs_ever_clobbered = (int *)data;
unsigned int i, regno;
static void sh_output_mi_thunk (FILE *, tree, HOST_WIDE_INT, HOST_WIDE_INT, tree);
static void sh_file_start (void);
static int flow_dependent_p (rtx, rtx);
-static void flow_dependent_p_1 (rtx, rtx, void *);
+static void flow_dependent_p_1 (rtx, const_rtx, void *);
static int shiftcosts (rtx);
static int andcosts (rtx);
static int addsubcosts (rtx);
/* A helper function for flow_dependent_p called through note_stores. */
static void
-flow_dependent_p_1 (rtx x, rtx pat ATTRIBUTE_UNUSED, void *data)
+flow_dependent_p_1 (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
{
rtx * pinsn = (rtx *) data;
/* A wrapper for cselib_invalidate_rtx to be called via note_stores. */
static void
-cselib_invalidate_rtx_note_stores (rtx dest, rtx ignore ATTRIBUTE_UNUSED,
+cselib_invalidate_rtx_note_stores (rtx dest, const_rtx ignore ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED)
{
cselib_invalidate_rtx (dest);
instruction containing DEST. */
static void
-mark_nonreg_stores_1 (rtx dest, rtx pattern, void *data)
+mark_nonreg_stores_1 (rtx dest, const_rtx pattern, void *data)
{
if (GET_CODE (pattern) != CLOBBER && !REG_P (dest))
mark_insn ((rtx) data, true);
instruction containing DEST. */
static void
-mark_nonreg_stores_2 (rtx dest, rtx pattern, void *data)
+mark_nonreg_stores_2 (rtx dest, const_rtx pattern, void *data)
{
if (GET_CODE (pattern) != CLOBBER && !REG_P (dest))
mark_insn ((rtx) data, false);
}
static void
-mark_mem_store (rtx loc, rtx setter ATTRIBUTE_UNUSED, void *data ATTRIBUTE_UNUSED)
+mark_mem_store (rtx loc, const_rtx setter ATTRIBUTE_UNUSED, void *data ATTRIBUTE_UNUSED)
{
if (MEM_P (loc))
mem_ref_p = true;
SETTER. DATA is used to pass the current basic block info. */
static void
-df_urec_mark_reg_change (rtx reg, rtx setter, void *data)
+df_urec_mark_reg_change (rtx reg, const_rtx setter, void *data)
{
int regno;
int endregno;
};
static void handle_epilogue_set (rtx, struct epi_info *);
-static void update_epilogue_consts (rtx, rtx, void *);
+static void update_epilogue_consts (rtx, const_rtx, void *);
static void emit_equiv_load (struct epi_info *);
/* Modify INSN, a list of one or more insns that is part of the epilogue, to
/* Update the tracking information for registers set to constants. */
static void
-update_epilogue_consts (rtx dest, rtx x, void *data)
+update_epilogue_consts (rtx dest, const_rtx x, void *data)
{
struct epi_info *p = (struct epi_info *) data;
rtx new;
static void alloc_reg_set_mem (int);
static void free_reg_set_mem (void);
static void record_one_set (int, rtx);
-static void record_set_info (rtx, rtx, void *);
+static void record_set_info (rtx, const_rtx, void *);
static void compute_sets (void);
static void hash_scan_insn (rtx, struct hash_table *, int);
static void hash_scan_set (rtx, rtx, struct hash_table *);
static int expr_equiv_p (rtx, rtx);
static void record_last_reg_set_info (rtx, int);
static void record_last_mem_set_info (rtx);
-static void record_last_set_info (rtx, rtx, void *);
+static void record_last_set_info (rtx, const_rtx, void *);
static void compute_hash_table (struct hash_table *);
static void alloc_hash_table (int, struct hash_table *, int);
static void free_hash_table (struct hash_table *);
static int try_replace_reg (rtx, rtx, rtx);
static struct expr *find_avail_set (int, rtx);
static int cprop_jump (basic_block, rtx, rtx, rtx, rtx);
-static void mems_conflict_for_gcse_p (rtx, rtx, void *);
+static void mems_conflict_for_gcse_p (rtx, const_rtx, void *);
static int load_killed_in_block_p (basic_block, int, rtx, int);
-static void canon_list_insert (rtx, rtx, void *);
+static void canon_list_insert (rtx, const_rtx, void *);
static int cprop_insn (rtx, int);
static int cprop (int);
static void find_implicit_sets (void);
static void compute_ld_motion_mems (void);
static void trim_ld_motion_mems (void);
static void update_ld_motion_stores (struct expr *);
-static void reg_set_info (rtx, rtx, void *);
-static void reg_clear_last_set (rtx, rtx, void *);
+static void reg_set_info (rtx, const_rtx, void *);
+static void reg_clear_last_set (rtx, const_rtx, void *);
static bool store_ops_ok (rtx, int *);
static rtx extract_mentioned_regs (rtx);
static rtx extract_mentioned_regs_helper (rtx, rtx);
occurring. */
static void
-record_set_info (rtx dest, rtx setter ATTRIBUTE_UNUSED, void *data)
+record_set_info (rtx dest, const_rtx setter ATTRIBUTE_UNUSED, void *data)
{
rtx record_set_insn = (rtx) data;
gcse_mems_conflict_p to a nonzero value. */
static void
-mems_conflict_for_gcse_p (rtx dest, rtx setter ATTRIBUTE_UNUSED,
+mems_conflict_for_gcse_p (rtx dest, const_rtx setter ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED)
{
while (GET_CODE (dest) == SUBREG
taken off pairwise. */
static void
-canon_list_insert (rtx dest ATTRIBUTE_UNUSED, rtx unused1 ATTRIBUTE_UNUSED,
+canon_list_insert (rtx dest ATTRIBUTE_UNUSED, const_rtx unused1 ATTRIBUTE_UNUSED,
void * v_insn)
{
rtx dest_addr, insn;
the SET is taking place. */
static void
-record_last_set_info (rtx dest, rtx setter ATTRIBUTE_UNUSED, void *data)
+record_last_set_info (rtx dest, const_rtx setter ATTRIBUTE_UNUSED, void *data)
{
rtx last_set_insn = (rtx) data;
note_stores. */
static void
-reg_set_info (rtx dest, rtx setter ATTRIBUTE_UNUSED,
+reg_set_info (rtx dest, const_rtx setter ATTRIBUTE_UNUSED,
void *data)
{
sbitmap bb_reg = data;
note_stores. */
static void
-reg_clear_last_set (rtx dest, rtx setter ATTRIBUTE_UNUSED,
+reg_clear_last_set (rtx dest, const_rtx setter ATTRIBUTE_UNUSED,
void *data)
{
int *dead_vec = data;
static void find_reg (int, HARD_REG_SET, int, int, int);
static void record_one_conflict (int);
static void record_conflicts (int *, int);
-static void mark_reg_store (rtx, rtx, void *);
-static void mark_reg_clobber (rtx, rtx, void *);
+static void mark_reg_store (rtx, const_rtx, void *);
+static void mark_reg_clobber (rtx, const_rtx, void *);
static void mark_reg_conflicts (rtx);
static void mark_reg_death (rtx);
static void set_preference (rtx, rtx);
static void dump_conflicts (FILE *);
-static void reg_becomes_live (rtx, rtx, void *);
+static void reg_becomes_live (rtx, const_rtx, void *);
static void reg_dies (int, enum machine_mode, struct insn_chain *);
a REG_INC note was found for it). */
static void
-mark_reg_store (rtx reg, rtx setter, void *data ATTRIBUTE_UNUSED)
+mark_reg_store (rtx reg, const_rtx setter, void *data ATTRIBUTE_UNUSED)
{
int regno;
/* Like mark_reg_store except notice just CLOBBERs; ignore SETs. */
static void
-mark_reg_clobber (rtx reg, rtx setter, void *data)
+mark_reg_clobber (rtx reg, const_rtx setter, void *data)
{
if (GET_CODE (setter) == CLOBBER)
mark_reg_store (reg, setter, data);
/* Record in live_relevant_regs and REGS_SET that register REG became live.
This is called via note_stores. */
static void
-reg_becomes_live (rtx reg, rtx setter ATTRIBUTE_UNUSED, void *regs_set)
+reg_becomes_live (rtx reg, const_rtx setter ATTRIBUTE_UNUSED, void *regs_set)
{
int regno;
prev != 0 && !LABEL_P (prev);
prev = prev_nonnote_insn (prev))
{
- rtx set = set_of (arg0, prev);
+ const_rtx set = set_of (arg0, prev);
if (set && GET_CODE (set) == SET
&& rtx_equal_p (SET_DEST (set), arg0))
{
static int recorded_label_ref;
static void alloc_qty (int, enum machine_mode, int, int);
-static void validate_equiv_mem_from_store (rtx, rtx, void *);
+static void validate_equiv_mem_from_store (rtx, const_rtx, void *);
static int validate_equiv_mem (rtx, rtx, rtx);
static int equiv_init_varies_p (rtx);
static int equiv_init_movable_p (rtx, int);
static int memref_referenced_p (rtx, rtx);
static int memref_used_between_p (rtx, rtx, rtx);
static void update_equiv_regs (void);
-static void no_equiv (rtx, rtx, void *);
+static void no_equiv (rtx, const_rtx, void *);
static void block_alloc (int);
static int qty_sugg_compare (int, int);
static int qty_sugg_compare_1 (const void *, const void *);
static int combine_regs (rtx, rtx, int, int, rtx, int);
static int reg_meets_class_p (int, enum reg_class);
static void update_qty_class (int, int);
-static void reg_is_set (rtx, rtx, void *);
+static void reg_is_set (rtx, const_rtx, void *);
static void reg_is_born (rtx, int);
static void wipe_dead_reg (rtx, int);
static int find_free_reg (enum reg_class, enum machine_mode, int, int, int,
Called via note_stores. */
static void
-validate_equiv_mem_from_store (rtx dest, rtx set ATTRIBUTE_UNUSED,
+validate_equiv_mem_from_store (rtx dest, const_rtx set ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED)
{
if ((REG_P (dest)
assignment - a SET, CLOBBER or REG_INC note. It is currently not used,
but needs to be there because this function is called from note_stores. */
static void
-no_equiv (rtx reg, rtx store ATTRIBUTE_UNUSED, void *data ATTRIBUTE_UNUSED)
+no_equiv (rtx reg, const_rtx store ATTRIBUTE_UNUSED, void *data ATTRIBUTE_UNUSED)
{
int regno;
rtx list;
carry info from `block_alloc'. */
static void
-reg_is_set (rtx reg, rtx setter, void *data ATTRIBUTE_UNUSED)
+reg_is_set (rtx reg, const_rtx setter, void *data ATTRIBUTE_UNUSED)
{
/* Note that note_stores will only pass us a SUBREG if it is a SUBREG of
a hard register. These may actually not exist any more. */
/* Marks registers altered by EXPR in set ALT. */
static void
-mark_altered (rtx expr, rtx by ATTRIBUTE_UNUSED, void *alt)
+mark_altered (rtx expr, const_rtx by ATTRIBUTE_UNUSED, void *alt)
{
if (GET_CODE (expr) == SUBREG)
expr = SUBREG_REG (expr);
static struct seginfo * new_seginfo (int, rtx, int, HARD_REG_SET);
static void add_seginfo (struct bb_info *, struct seginfo *);
static void reg_dies (rtx, HARD_REG_SET *);
-static void reg_becomes_live (rtx, rtx, void *);
+static void reg_becomes_live (rtx, const_rtx, void *);
static void make_preds_opaque (basic_block, int);
\f
This is called via note_stores. */
static void
-reg_becomes_live (rtx reg, rtx setter ATTRIBUTE_UNUSED, void *live)
+reg_becomes_live (rtx reg, const_rtx setter ATTRIBUTE_UNUSED, void *live)
{
int regno;
in the list of insns that constitute the actual no_conflict block /
libcall block. */
static void
-no_conflict_move_test (rtx dest, rtx set, void *p0)
+no_conflict_move_test (rtx dest, const_rtx set, void *p0)
{
struct no_conflict_data *p= p0;
static bool oprs_unchanged_p (rtx, rtx, bool);
static void record_last_reg_set_info (rtx, int);
static void record_last_mem_set_info (rtx);
-static void record_last_set_info (rtx, rtx, void *);
+static void record_last_set_info (rtx, const_rtx, void *);
static void record_opr_changes (rtx);
-static void find_mem_conflicts (rtx, rtx, void *);
+static void find_mem_conflicts (rtx, const_rtx, void *);
static int load_killed_in_block_p (int, rtx, bool);
static void reset_opr_set_tables (void);
to a nonzero value. */
static void
-find_mem_conflicts (rtx dest, rtx setter ATTRIBUTE_UNUSED,
+find_mem_conflicts (rtx dest, const_rtx setter ATTRIBUTE_UNUSED,
void *data)
{
rtx mem_op = (rtx) data;
the SET is taking place. */
static void
-record_last_set_info (rtx dest, rtx setter ATTRIBUTE_UNUSED, void *data)
+record_last_set_info (rtx dest, const_rtx setter ATTRIBUTE_UNUSED, void *data)
{
rtx last_set_insn = (rtx) data;
static void reload_combine (void);
static void reload_combine_note_use (rtx *, rtx);
-static void reload_combine_note_store (rtx, rtx, void *);
+static void reload_combine_note_store (rtx, const_rtx, void *);
static void reload_cse_move2add (rtx);
-static void move2add_note_store (rtx, rtx, void *);
+static void move2add_note_store (rtx, const_rtx, void *);
/* Call cse / combine like post-reload optimization phases.
FIRST is the first instruction. */
accordingly. Called via note_stores from reload_combine. */
static void
-reload_combine_note_store (rtx dst, rtx set, void *data ATTRIBUTE_UNUSED)
+reload_combine_note_store (rtx dst, const_rtx set, void *data ATTRIBUTE_UNUSED)
{
int regno = 0;
int i;
Called from reload_cse_move2add via note_stores. */
static void
-move2add_note_store (rtx dst, rtx set, void *data ATTRIBUTE_UNUSED)
+move2add_note_store (rtx dst, const_rtx set, void *data ATTRIBUTE_UNUSED)
{
unsigned int regno = 0;
unsigned int nregs = 0;
static rtx discover_flags_reg (void);
static void mark_flags_life_zones (rtx);
-static void flags_set_1 (rtx, rtx, void *);
+static void flags_set_1 (rtx, const_rtx, void *);
static int try_auto_increment (rtx, rtx, rtx, rtx, HOST_WIDE_INT, int);
static int find_matches (rtx, struct match *);
/* A subroutine of mark_flags_life_zones, called through note_stores. */
static void
-flags_set_1 (rtx x, rtx pat, void *data ATTRIBUTE_UNUSED)
+flags_set_1 (rtx x, const_rtx pat, void *data ATTRIBUTE_UNUSED)
{
if (GET_CODE (pat) == SET
&& reg_overlap_mentioned_p (x, flags_set_1_rtx))
enum op_type, int);
static struct du_chain *build_def_use (basic_block);
static void dump_def_use_chain (struct du_chain *);
-static void note_sets (rtx, rtx, void *);
+static void note_sets (rtx, const_rtx, void *);
static void clear_dead_regs (HARD_REG_SET *, enum machine_mode, rtx);
static void merge_overlapping_regs (basic_block, HARD_REG_SET *,
struct du_chain *);
record them in *DATA (which is actually a HARD_REG_SET *). */
static void
-note_sets (rtx x, rtx set ATTRIBUTE_UNUSED, void *data)
+note_sets (rtx x, const_rtx set ATTRIBUTE_UNUSED, void *data)
{
HARD_REG_SET *pset = (HARD_REG_SET *) data;
static void kill_value (rtx, struct value_data *);
static void set_value_regno (unsigned, enum machine_mode, struct value_data *);
static void init_value_data (struct value_data *);
-static void kill_clobbered_value (rtx, rtx, void *);
-static void kill_set_value (rtx, rtx, void *);
+static void kill_clobbered_value (rtx, const_rtx, void *);
+static void kill_set_value (rtx, const_rtx, void *);
static int kill_autoinc_value (rtx *, void *);
static void copy_value (rtx, rtx, struct value_data *);
static bool mode_change_ok (enum machine_mode, enum machine_mode,
/* Called through note_stores. If X is clobbered, kill its value. */
static void
-kill_clobbered_value (rtx x, rtx set, void *data)
+kill_clobbered_value (rtx x, const_rtx set, void *data)
{
struct value_data *vd = data;
if (GET_CODE (set) == CLOBBER)
current value and install it as the root of its own value list. */
static void
-kill_set_value (rtx x, rtx set, void *data)
+kill_set_value (rtx x, const_rtx set, void *data)
{
struct value_data *vd = data;
if (GET_CODE (set) != CLOBBER)
static void elimination_effects (rtx, enum machine_mode);
static int eliminate_regs_in_insn (rtx, int);
static void update_eliminable_offsets (void);
-static void mark_not_eliminable (rtx, rtx, void *);
+static void mark_not_eliminable (rtx, const_rtx, void *);
static void set_initial_elim_offsets (void);
static bool verify_initial_elim_offsets (void);
static void set_initial_label_offsets (void);
static void count_pseudo (int);
static void order_regs_for_reload (struct insn_chain *);
static void reload_as_needed (int);
-static void forget_old_reloads_1 (rtx, rtx, void *);
+static void forget_old_reloads_1 (rtx, const_rtx, void *);
static void forget_marked_reloads (regset);
static int reload_reg_class_lower (const void *, const void *);
static void mark_reload_reg_in_use (unsigned int, int, enum reload_type,
the insns of the function. */
static void
-mark_not_eliminable (rtx dest, rtx x, void *data ATTRIBUTE_UNUSED)
+mark_not_eliminable (rtx dest, const_rtx x, void *data ATTRIBUTE_UNUSED)
{
unsigned int i;
to be forgotten later. */
static void
-forget_old_reloads_1 (rtx x, rtx ignored ATTRIBUTE_UNUSED,
+forget_old_reloads_1 (rtx x, const_rtx ignored ATTRIBUTE_UNUSED,
void *data)
{
unsigned int regno;
static HARD_REG_SET pending_dead_regs;
\f
-static void update_live_status (rtx, rtx, void *);
+static void update_live_status (rtx, const_rtx, void *);
static int find_basic_block (rtx, int);
static rtx next_insn_no_annul (rtx);
static rtx find_dead_or_set_registers (rtx, struct resources*,
It deadens any CLOBBERed registers and livens any SET registers. */
static void
-update_live_status (rtx dest, rtx x, void *data ATTRIBUTE_UNUSED)
+update_live_status (rtx dest, const_rtx x, void *data ATTRIBUTE_UNUSED)
{
int first_regno, last_regno;
int i;
extern rtx find_last_value (rtx, rtx *, rtx, int);
extern int refers_to_regno_p (unsigned int, unsigned int, const_rtx, rtx *);
extern int reg_overlap_mentioned_p (const_rtx, const_rtx);
-extern rtx set_of (rtx, rtx);
-extern void note_stores (rtx, void (*) (rtx, rtx, void *), void *);
+extern const_rtx set_of (const_rtx, const_rtx);
+extern void note_stores (const_rtx, void (*) (rtx, const_rtx, void *), void *);
extern void note_uses (rtx *, void (*) (rtx *, void *), void *);
extern int dead_or_set_p (const_rtx, const_rtx);
extern int dead_or_set_regno_p (const_rtx, unsigned int);
};
/* Forward declarations */
-static void set_of_1 (rtx, rtx, void *);
+static void set_of_1 (rtx, const_rtx, void *);
static bool covers_regno_p (const_rtx, unsigned int);
static bool covers_regno_no_parallel_p (const_rtx, unsigned int);
static int rtx_referenced_p_1 (rtx *, void *);
static int computed_jump_p_1 (const_rtx);
-static void parms_set (rtx, rtx, void *);
+static void parms_set (rtx, const_rtx, void *);
static void subreg_get_info (unsigned int, enum machine_mode,
unsigned int, enum machine_mode,
struct subreg_info *);
/* Helper function for set_of. */
struct set_of_data
{
- rtx found;
- rtx pat;
+ const_rtx found;
+ const_rtx pat;
};
static void
-set_of_1 (rtx x, rtx pat, void *data1)
+set_of_1 (rtx x, const_rtx pat, void *data1)
{
- struct set_of_data *data = (struct set_of_data *) (data1);
- if (rtx_equal_p (x, data->pat)
- || (!MEM_P (x) && reg_overlap_mentioned_p (data->pat, x)))
- data->found = pat;
+ struct set_of_data *const data = (struct set_of_data *) (data1);
+ if (rtx_equal_p (x, data->pat)
+ || (!MEM_P (x) && reg_overlap_mentioned_p (data->pat, x)))
+ data->found = pat;
}
/* Give an INSN, return a SET or CLOBBER expression that does modify PAT
(either directly or via STRICT_LOW_PART and similar modifiers). */
-rtx
-set_of (rtx pat, rtx insn)
+const_rtx
+set_of (const_rtx pat, const_rtx insn)
{
struct set_of_data data;
data.found = NULL_RTX;
the SUBREG will be passed. */
void
-note_stores (rtx x, void (*fun) (rtx, rtx, void *), void *data)
+note_stores (const_rtx x, void (*fun) (rtx, const_rtx, void *), void *data)
{
int i;
/* Helper function for noticing stores to parameter registers. */
static void
-parms_set (rtx x, rtx pat ATTRIBUTE_UNUSED, void *data)
+parms_set (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
{
struct parms_set_data *d = data;
if (REG_P (x) && REGNO (x) < FIRST_PSEUDO_REGISTER
static int is_exception_free (rtx, int, int);
static bool sets_likely_spilled (rtx);
-static void sets_likely_spilled_1 (rtx, rtx, void *);
+static void sets_likely_spilled_1 (rtx, const_rtx, void *);
static void add_branch_dependences (rtx, rtx);
static void compute_block_backward_dependences (int);
}
static void
-sets_likely_spilled_1 (rtx x, rtx pat, void *data)
+sets_likely_spilled_1 (rtx x, const_rtx pat, void *data)
{
bool *ret = (bool *) data;
Only useful before prologues have been emitted. */
static void
-notice_stack_pointer_modification_1 (rtx x, rtx pat ATTRIBUTE_UNUSED,
+notice_stack_pointer_modification_1 (rtx x, const_rtx pat ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED)
{
if (x == stack_pointer_rtx
static bool same_variable_part_p (rtx, tree, HOST_WIDE_INT);
static int count_uses (rtx *, void *);
static void count_uses_1 (rtx *, void *);
-static void count_stores (rtx, rtx, void *);
+static void count_stores (rtx, const_rtx, void *);
static int add_uses (rtx *, void *);
static void add_uses_1 (rtx *, void *);
-static void add_stores (rtx, rtx, void *);
+static void add_stores (rtx, const_rtx, void *);
static bool compute_bb_dataflow (basic_block);
static void vt_find_locations (void);
INSN is instruction which the LOC is part of. */
static void
-count_stores (rtx loc, rtx expr ATTRIBUTE_UNUSED, void *insn)
+count_stores (rtx loc, const_rtx expr ATTRIBUTE_UNUSED, void *insn)
{
count_uses (&loc, insn);
}
INSN is instruction which the LOC is part of. */
static void
-add_stores (rtx loc, rtx expr, void *insn)
+add_stores (rtx loc, const_rtx expr, void *insn)
{
if (REG_P (loc))
{
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