#include "insn-config.h"
#include "recog.h"
#include "diagnostic-core.h"
-#include "toplev.h"
#include "params.h"
#include "df.h"
#include "sparseset.h"
allocno's conflict (can't go in the same hardware register).
Some arrays will be used as conflict bit vector of the
- corresponding allocnos see function build_allocno_conflicts. */
+ corresponding allocnos see function build_object_conflicts. */
static IRA_INT_TYPE **conflicts;
/* Macro to test a conflict of C1 and C2 in `conflicts'. */
-#define OBJECTS_CONFLICT_P(C1, C2) \
+#define OBJECTS_CONFLICT_P(C1, C2) \
(OBJECT_MIN (C1) <= OBJECT_CONFLICT_ID (C2) \
&& OBJECT_CONFLICT_ID (C2) <= OBJECT_MAX (C1) \
&& TEST_MINMAX_SET_BIT (conflicts[OBJECT_CONFLICT_ID (C1)], \
OBJECT_MIN (C1), OBJECT_MAX (C1)))
\f
+/* Record a conflict between objects OBJ1 and OBJ2. If necessary,
+ canonicalize the conflict by recording it for lower-order subobjects
+ of the corresponding allocnos. */
+static void
+record_object_conflict (ira_object_t obj1, ira_object_t obj2)
+{
+ ira_allocno_t a1 = OBJECT_ALLOCNO (obj1);
+ ira_allocno_t a2 = OBJECT_ALLOCNO (obj2);
+ int w1 = OBJECT_SUBWORD (obj1);
+ int w2 = OBJECT_SUBWORD (obj2);
+ int id1, id2;
+
+ /* Canonicalize the conflict. If two identically-numbered words
+ conflict, always record this as a conflict between words 0. That
+ is the only information we need, and it is easier to test for if
+ it is collected in each allocno's lowest-order object. */
+ if (w1 == w2 && w1 > 0)
+ {
+ obj1 = ALLOCNO_OBJECT (a1, 0);
+ obj2 = ALLOCNO_OBJECT (a2, 0);
+ }
+ id1 = OBJECT_CONFLICT_ID (obj1);
+ id2 = OBJECT_CONFLICT_ID (obj2);
+
+ SET_MINMAX_SET_BIT (conflicts[id1], id2, OBJECT_MIN (obj1),
+ OBJECT_MAX (obj1));
+ SET_MINMAX_SET_BIT (conflicts[id2], id1, OBJECT_MIN (obj2),
+ OBJECT_MAX (obj2));
+}
+
/* Build allocno conflict table by processing allocno live ranges.
Return true if the table was built. The table is not built if it
is too big. */
{
int i;
unsigned int j;
- enum reg_class cover_class;
+ enum reg_class aclass;
int object_set_words, allocated_words_num, conflict_bit_vec_words_num;
live_range_t r;
ira_allocno_t allocno;
ira_allocno_iterator ai;
sparseset objects_live;
+ ira_object_t obj;
+ ira_allocno_object_iterator aoi;
allocated_words_num = 0;
FOR_EACH_ALLOCNO (allocno, ai)
- {
- ira_object_t obj = ALLOCNO_OBJECT (allocno);
- if (OBJECT_MAX (obj) < OBJECT_MIN (obj))
+ FOR_EACH_ALLOCNO_OBJECT (allocno, obj, aoi)
+ {
+ if (OBJECT_MAX (obj) < OBJECT_MIN (obj))
continue;
- conflict_bit_vec_words_num
- = ((OBJECT_MAX (obj) - OBJECT_MIN (obj) + IRA_INT_BITS)
- / IRA_INT_BITS);
- allocated_words_num += conflict_bit_vec_words_num;
- if ((unsigned long long) allocated_words_num * sizeof (IRA_INT_TYPE)
- > (unsigned long long) IRA_MAX_CONFLICT_TABLE_SIZE * 1024 * 1024)
- {
- if (internal_flag_ira_verbose > 0 && ira_dump_file != NULL)
- fprintf
- (ira_dump_file,
- "+++Conflict table will be too big(>%dMB) -- don't use it\n",
- IRA_MAX_CONFLICT_TABLE_SIZE);
- return false;
- }
- }
+ conflict_bit_vec_words_num
+ = ((OBJECT_MAX (obj) - OBJECT_MIN (obj) + IRA_INT_BITS)
+ / IRA_INT_BITS);
+ allocated_words_num += conflict_bit_vec_words_num;
+ if ((unsigned long long) allocated_words_num * sizeof (IRA_INT_TYPE)
+ > (unsigned long long) IRA_MAX_CONFLICT_TABLE_SIZE * 1024 * 1024)
+ {
+ if (internal_flag_ira_verbose > 0 && ira_dump_file != NULL)
+ fprintf
+ (ira_dump_file,
+ "+++Conflict table will be too big(>%dMB) -- don't use it\n",
+ IRA_MAX_CONFLICT_TABLE_SIZE);
+ return false;
+ }
+ }
conflicts = (IRA_INT_TYPE **) ira_allocate (sizeof (IRA_INT_TYPE *)
* ira_objects_num);
allocated_words_num = 0;
FOR_EACH_ALLOCNO (allocno, ai)
- {
- ira_object_t obj = ALLOCNO_OBJECT (allocno);
- int id = OBJECT_CONFLICT_ID (obj);
- if (OBJECT_MAX (obj) < OBJECT_MIN (obj))
- {
- conflicts[id] = NULL;
- continue;
- }
- conflict_bit_vec_words_num
- = ((OBJECT_MAX (obj) - OBJECT_MIN (obj) + IRA_INT_BITS)
- / IRA_INT_BITS);
- allocated_words_num += conflict_bit_vec_words_num;
- conflicts[id]
- = (IRA_INT_TYPE *) ira_allocate (sizeof (IRA_INT_TYPE)
- * conflict_bit_vec_words_num);
- memset (conflicts[id], 0,
- sizeof (IRA_INT_TYPE) * conflict_bit_vec_words_num);
- }
+ FOR_EACH_ALLOCNO_OBJECT (allocno, obj, aoi)
+ {
+ int id = OBJECT_CONFLICT_ID (obj);
+ if (OBJECT_MAX (obj) < OBJECT_MIN (obj))
+ {
+ conflicts[id] = NULL;
+ continue;
+ }
+ conflict_bit_vec_words_num
+ = ((OBJECT_MAX (obj) - OBJECT_MIN (obj) + IRA_INT_BITS)
+ / IRA_INT_BITS);
+ allocated_words_num += conflict_bit_vec_words_num;
+ conflicts[id]
+ = (IRA_INT_TYPE *) ira_allocate (sizeof (IRA_INT_TYPE)
+ * conflict_bit_vec_words_num);
+ memset (conflicts[id], 0,
+ sizeof (IRA_INT_TYPE) * conflict_bit_vec_words_num);
+ }
object_set_words = (ira_objects_num + IRA_INT_BITS - 1) / IRA_INT_BITS;
if (internal_flag_ira_verbose > 0 && ira_dump_file != NULL)
{
for (r = ira_start_point_ranges[i]; r != NULL; r = r->start_next)
{
- ira_allocno_t allocno = r->allocno;
- ira_object_t obj = ALLOCNO_OBJECT (allocno);
+ ira_object_t obj = r->object;
+ ira_allocno_t allocno = OBJECT_ALLOCNO (obj);
int id = OBJECT_CONFLICT_ID (obj);
- cover_class = ALLOCNO_COVER_CLASS (allocno);
+ gcc_assert (id < ira_objects_num);
+
+ aclass = ALLOCNO_CLASS (allocno);
sparseset_set_bit (objects_live, id);
EXECUTE_IF_SET_IN_SPARSESET (objects_live, j)
{
- ira_object_t live_cr = ira_object_id_map[j];
- ira_allocno_t live_a = OBJECT_ALLOCNO (live_cr);
- enum reg_class live_cover_class = ALLOCNO_COVER_CLASS (live_a);
+ ira_object_t live_obj = ira_object_id_map[j];
+ ira_allocno_t live_a = OBJECT_ALLOCNO (live_obj);
+ enum reg_class live_aclass = ALLOCNO_CLASS (live_a);
- if (ira_reg_classes_intersect_p[cover_class][live_cover_class]
+ if (ira_reg_classes_intersect_p[aclass][live_aclass]
/* Don't set up conflict for the allocno with itself. */
- && id != (int) j)
+ && live_a != allocno)
{
- SET_MINMAX_SET_BIT (conflicts[id], j,
- OBJECT_MIN (obj),
- OBJECT_MAX (obj));
- SET_MINMAX_SET_BIT (conflicts[j], id,
- OBJECT_MIN (live_cr),
- OBJECT_MAX (live_cr));
+ record_object_conflict (obj, live_obj);
}
}
}
for (r = ira_finish_point_ranges[i]; r != NULL; r = r->finish_next)
- {
- ira_allocno_t allocno = r->allocno;
- ira_object_t obj = ALLOCNO_OBJECT (allocno);
- sparseset_clear_bit (objects_live, OBJECT_CONFLICT_ID (obj));
- }
+ sparseset_clear_bit (objects_live, OBJECT_CONFLICT_ID (r->object));
}
sparseset_free (objects_live);
return true;
register due to conflicts. */
static bool
-allocnos_conflict_p (ira_allocno_t a1, ira_allocno_t a2)
+allocnos_conflict_for_copy_p (ira_allocno_t a1, ira_allocno_t a2)
{
- ira_object_t obj1 = ALLOCNO_OBJECT (a1);
- ira_object_t obj2 = ALLOCNO_OBJECT (a2);
+ /* Due to the fact that we canonicalize conflicts (see
+ record_object_conflict), we only need to test for conflicts of
+ the lowest order words. */
+ ira_object_t obj1 = ALLOCNO_OBJECT (a1, 0);
+ ira_object_t obj2 = ALLOCNO_OBJECT (a2, 0);
+
return OBJECTS_CONFLICT_P (obj1, obj2);
}
static bool
commutative_constraint_p (const char *str)
{
+ int curr_alt, c;
bool ignore_p;
- int c;
- for (ignore_p = false;;)
+ for (ignore_p = false, curr_alt = 0;;)
{
c = *str;
if (c == '\0')
break;
str += CONSTRAINT_LEN (c, str);
- if (c == '#')
+ if (c == '#' || !recog_data.alternative_enabled_p[curr_alt])
ignore_p = true;
else if (c == ',')
- ignore_p = false;
+ {
+ curr_alt++;
+ ignore_p = false;
+ }
else if (! ignore_p)
{
/* Usually `%' is the first constraint character but the
c = *str;
if (c == '\0')
break;
- if (c == '#')
+ if (c == '#' || !recog_data.alternative_enabled_p[curr_alt])
ignore_p = true;
else if (c == ',')
{
int allocno_preferenced_hard_regno, cost, index, offset1, offset2;
bool only_regs_p;
ira_allocno_t a;
- enum reg_class rclass, cover_class;
+ enum reg_class rclass, aclass;
enum machine_mode mode;
ira_copy_t cp;
{
ira_allocno_t a1 = ira_curr_regno_allocno_map[REGNO (reg1)];
ira_allocno_t a2 = ira_curr_regno_allocno_map[REGNO (reg2)];
- if (!allocnos_conflict_p (a1, a2) && offset1 == offset2)
+ if (!allocnos_conflict_for_copy_p (a1, a2) && offset1 == offset2)
{
cp = ira_add_allocno_copy (a1, a2, freq, constraint_p, insn,
ira_curr_loop_tree_node);
return false;
}
- if (! IN_RANGE (allocno_preferenced_hard_regno, 0, FIRST_PSEUDO_REGISTER - 1))
+ if (! IN_RANGE (allocno_preferenced_hard_regno,
+ 0, FIRST_PSEUDO_REGISTER - 1))
/* Can not be tied. */
return false;
rclass = REGNO_REG_CLASS (allocno_preferenced_hard_regno);
mode = ALLOCNO_MODE (a);
- cover_class = ALLOCNO_COVER_CLASS (a);
+ aclass = ALLOCNO_CLASS (a);
if (only_regs_p && insn != NULL_RTX
&& reg_class_size[rclass] <= (unsigned) CLASS_MAX_NREGS (rclass, mode))
/* It is already taken into account in ira-costs.c. */
return false;
- index = ira_class_hard_reg_index[cover_class][allocno_preferenced_hard_regno];
+ index = ira_class_hard_reg_index[aclass][allocno_preferenced_hard_regno];
if (index < 0)
- /* Can not be tied. It is not in the cover class. */
+ /* Can not be tied. It is not in the allocno class. */
return false;
+ ira_init_register_move_cost_if_necessary (mode);
if (HARD_REGISTER_P (reg1))
- cost = ira_get_register_move_cost (mode, cover_class, rclass) * freq;
+ cost = ira_register_move_cost[mode][aclass][rclass] * freq;
else
- cost = ira_get_register_move_cost (mode, rclass, cover_class) * freq;
+ cost = ira_register_move_cost[mode][rclass][aclass] * freq;
do
{
ira_allocate_and_set_costs
- (&ALLOCNO_HARD_REG_COSTS (a), cover_class,
- ALLOCNO_COVER_CLASS_COST (a));
+ (&ALLOCNO_HARD_REG_COSTS (a), aclass,
+ ALLOCNO_CLASS_COST (a));
ira_allocate_and_set_costs
- (&ALLOCNO_CONFLICT_HARD_REG_COSTS (a), cover_class, 0);
+ (&ALLOCNO_CONFLICT_HARD_REG_COSTS (a), aclass, 0);
ALLOCNO_HARD_REG_COSTS (a)[index] -= cost;
ALLOCNO_CONFLICT_HARD_REG_COSTS (a)[index] -= cost;
- if (ALLOCNO_HARD_REG_COSTS (a)[index] < ALLOCNO_COVER_CLASS_COST (a))
- ALLOCNO_COVER_CLASS_COST (a) = ALLOCNO_HARD_REG_COSTS (a)[index];
+ if (ALLOCNO_HARD_REG_COSTS (a)[index] < ALLOCNO_CLASS_COST (a))
+ ALLOCNO_CLASS_COST (a) = ALLOCNO_HARD_REG_COSTS (a)[index];
a = ira_parent_or_cap_allocno (a);
}
while (a != NULL);
? SET_SRC (set)
: SUBREG_REG (SET_SRC (set))) != NULL_RTX)
{
- process_regs_for_copy (SET_DEST (set), SET_SRC (set), false, insn, freq);
+ process_regs_for_copy (SET_DEST (set), SET_SRC (set),
+ false, insn, freq);
return;
}
/* Fast check of possibility of constraint or shuffle copies. If
parent_a1 = ira_parent_or_cap_allocno (a1);
parent_a2 = ira_parent_or_cap_allocno (a2);
ira_assert (parent_a1 != NULL && parent_a2 != NULL);
- if (! allocnos_conflict_p (parent_a1, parent_a2))
+ if (! allocnos_conflict_for_copy_p (parent_a1, parent_a2))
ira_add_allocno_copy (parent_a1, parent_a2, cp->freq,
cp->constraint_p, cp->insn, cp->loop_tree_node);
}
static ira_object_t *collected_conflict_objects;
/* Build conflict vectors or bit conflict vectors (whatever is more
- profitable) for allocno A from the conflict table and propagate the
- conflicts to upper level allocno. */
+ profitable) for object OBJ from the conflict table. */
static void
-build_allocno_conflicts (ira_allocno_t a)
+build_object_conflicts (ira_object_t obj)
{
int i, px, parent_num;
- int conflict_bit_vec_words_num;
ira_allocno_t parent_a, another_parent_a;
- ira_object_t *vec;
- IRA_INT_TYPE *allocno_conflicts;
- ira_object_t obj, parent_obj;
+ ira_object_t parent_obj;
+ ira_allocno_t a = OBJECT_ALLOCNO (obj);
+ IRA_INT_TYPE *object_conflicts;
minmax_set_iterator asi;
+ int parent_min, parent_max ATTRIBUTE_UNUSED;
- obj = ALLOCNO_OBJECT (a);
- allocno_conflicts = conflicts[OBJECT_CONFLICT_ID (obj)];
+ object_conflicts = conflicts[OBJECT_CONFLICT_ID (obj)];
px = 0;
- FOR_EACH_BIT_IN_MINMAX_SET (allocno_conflicts,
+ FOR_EACH_BIT_IN_MINMAX_SET (object_conflicts,
OBJECT_MIN (obj), OBJECT_MAX (obj), i, asi)
{
ira_object_t another_obj = ira_object_id_map[i];
ira_allocno_t another_a = OBJECT_ALLOCNO (obj);
+
ira_assert (ira_reg_classes_intersect_p
- [ALLOCNO_COVER_CLASS (a)][ALLOCNO_COVER_CLASS (another_a)]);
+ [ALLOCNO_CLASS (a)][ALLOCNO_CLASS (another_a)]);
collected_conflict_objects[px++] = another_obj;
}
if (ira_conflict_vector_profitable_p (obj, px))
{
+ ira_object_t *vec;
ira_allocate_conflict_vec (obj, px);
vec = OBJECT_CONFLICT_VEC (obj);
memcpy (vec, collected_conflict_objects, sizeof (ira_object_t) * px);
}
else
{
- OBJECT_CONFLICT_ARRAY (obj) = allocno_conflicts;
+ int conflict_bit_vec_words_num;
+
+ OBJECT_CONFLICT_ARRAY (obj) = object_conflicts;
if (OBJECT_MAX (obj) < OBJECT_MIN (obj))
conflict_bit_vec_words_num = 0;
else
OBJECT_CONFLICT_ARRAY_SIZE (obj)
= conflict_bit_vec_words_num * sizeof (IRA_INT_TYPE);
}
+
parent_a = ira_parent_or_cap_allocno (a);
if (parent_a == NULL)
return;
- ira_assert (ALLOCNO_COVER_CLASS (a) == ALLOCNO_COVER_CLASS (parent_a));
- parent_obj = ALLOCNO_OBJECT (parent_a);
+ ira_assert (ALLOCNO_CLASS (a) == ALLOCNO_CLASS (parent_a));
+ ira_assert (ALLOCNO_NUM_OBJECTS (a) == ALLOCNO_NUM_OBJECTS (parent_a));
+ parent_obj = ALLOCNO_OBJECT (parent_a, OBJECT_SUBWORD (obj));
parent_num = OBJECT_CONFLICT_ID (parent_obj);
- FOR_EACH_BIT_IN_MINMAX_SET (allocno_conflicts,
+ parent_min = OBJECT_MIN (parent_obj);
+ parent_max = OBJECT_MAX (parent_obj);
+ FOR_EACH_BIT_IN_MINMAX_SET (object_conflicts,
OBJECT_MIN (obj), OBJECT_MAX (obj), i, asi)
{
ira_object_t another_obj = ira_object_id_map[i];
ira_allocno_t another_a = OBJECT_ALLOCNO (another_obj);
+ int another_word = OBJECT_SUBWORD (another_obj);
ira_assert (ira_reg_classes_intersect_p
- [ALLOCNO_COVER_CLASS (a)][ALLOCNO_COVER_CLASS (another_a)]);
+ [ALLOCNO_CLASS (a)][ALLOCNO_CLASS (another_a)]);
+
another_parent_a = ira_parent_or_cap_allocno (another_a);
if (another_parent_a == NULL)
continue;
ira_assert (ALLOCNO_NUM (another_parent_a) >= 0);
- ira_assert (ALLOCNO_COVER_CLASS (another_a)
- == ALLOCNO_COVER_CLASS (another_parent_a));
+ ira_assert (ALLOCNO_CLASS (another_a)
+ == ALLOCNO_CLASS (another_parent_a));
+ ira_assert (ALLOCNO_NUM_OBJECTS (another_a)
+ == ALLOCNO_NUM_OBJECTS (another_parent_a));
SET_MINMAX_SET_BIT (conflicts[parent_num],
- OBJECT_CONFLICT_ID (ALLOCNO_OBJECT (another_parent_a)),
- OBJECT_MIN (parent_obj),
- OBJECT_MAX (parent_obj));
+ OBJECT_CONFLICT_ID (ALLOCNO_OBJECT (another_parent_a,
+ another_word)),
+ parent_min, parent_max);
}
}
a != NULL;
a = ALLOCNO_NEXT_REGNO_ALLOCNO (a))
{
- build_allocno_conflicts (a);
- for (cap = ALLOCNO_CAP (a); cap != NULL; cap = ALLOCNO_CAP (cap))
- build_allocno_conflicts (cap);
+ int j, nregs = ALLOCNO_NUM_OBJECTS (a);
+ for (j = 0; j < nregs; j++)
+ {
+ ira_object_t obj = ALLOCNO_OBJECT (a, j);
+ build_object_conflicts (obj);
+ for (cap = ALLOCNO_CAP (a); cap != NULL; cap = ALLOCNO_CAP (cap))
+ {
+ ira_object_t cap_obj = ALLOCNO_OBJECT (cap, j);
+ gcc_assert (ALLOCNO_NUM_OBJECTS (cap) == ALLOCNO_NUM_OBJECTS (a));
+ build_object_conflicts (cap_obj);
+ }
+ }
}
ira_free (collected_conflict_objects);
}
print_allocno_conflicts (FILE * file, bool reg_p, ira_allocno_t a)
{
HARD_REG_SET conflicting_hard_regs;
- ira_object_t obj;
- ira_allocno_t conflict_a;
- ira_allocno_conflict_iterator aci;
basic_block bb;
+ int n, i;
if (reg_p)
fprintf (file, ";; r%d", ALLOCNO_REGNO (a));
}
fputs (" conflicts:", file);
- obj = ALLOCNO_OBJECT (a);
- if (OBJECT_CONFLICT_ARRAY (obj) != NULL)
- FOR_EACH_ALLOCNO_CONFLICT (a, conflict_a, aci)
- {
- if (reg_p)
- fprintf (file, " r%d,", ALLOCNO_REGNO (conflict_a));
- else
- {
- fprintf (file, " a%d(r%d,", ALLOCNO_NUM (conflict_a),
- ALLOCNO_REGNO (conflict_a));
- if ((bb = ALLOCNO_LOOP_TREE_NODE (conflict_a)->bb) != NULL)
- fprintf (file, "b%d)", bb->index);
- else
- fprintf (file, "l%d)",
- ALLOCNO_LOOP_TREE_NODE (conflict_a)->loop->num);
- }
- }
+ n = ALLOCNO_NUM_OBJECTS (a);
+ for (i = 0; i < n; i++)
+ {
+ ira_object_t obj = ALLOCNO_OBJECT (a, i);
+ ira_object_t conflict_obj;
+ ira_object_conflict_iterator oci;
+
+ if (OBJECT_CONFLICT_ARRAY (obj) == NULL)
+ continue;
+ if (n > 1)
+ fprintf (file, "\n;; subobject %d:", i);
+ FOR_EACH_OBJECT_CONFLICT (obj, conflict_obj, oci)
+ {
+ ira_allocno_t conflict_a = OBJECT_ALLOCNO (conflict_obj);
+ if (reg_p)
+ fprintf (file, " r%d,", ALLOCNO_REGNO (conflict_a));
+ else
+ {
+ fprintf (file, " a%d(r%d", ALLOCNO_NUM (conflict_a),
+ ALLOCNO_REGNO (conflict_a));
+ if (ALLOCNO_NUM_OBJECTS (conflict_a) > 1)
+ fprintf (file, ",w%d", OBJECT_SUBWORD (conflict_obj));
+ if ((bb = ALLOCNO_LOOP_TREE_NODE (conflict_a)->bb) != NULL)
+ fprintf (file, ",b%d", bb->index);
+ else
+ fprintf (file, ",l%d",
+ ALLOCNO_LOOP_TREE_NODE (conflict_a)->loop->num);
+ putc (')', file);
+ }
+ }
+ COPY_HARD_REG_SET (conflicting_hard_regs, OBJECT_TOTAL_CONFLICT_HARD_REGS (obj));
+ AND_COMPL_HARD_REG_SET (conflicting_hard_regs, ira_no_alloc_regs);
+ AND_HARD_REG_SET (conflicting_hard_regs,
+ reg_class_contents[ALLOCNO_CLASS (a)]);
+ print_hard_reg_set (file, "\n;; total conflict hard regs:",
+ conflicting_hard_regs);
+
+ COPY_HARD_REG_SET (conflicting_hard_regs, OBJECT_CONFLICT_HARD_REGS (obj));
+ AND_COMPL_HARD_REG_SET (conflicting_hard_regs, ira_no_alloc_regs);
+ AND_HARD_REG_SET (conflicting_hard_regs,
+ reg_class_contents[ALLOCNO_CLASS (a)]);
+ print_hard_reg_set (file, ";; conflict hard regs:",
+ conflicting_hard_regs);
+ putc ('\n', file);
+ }
- COPY_HARD_REG_SET (conflicting_hard_regs, OBJECT_TOTAL_CONFLICT_HARD_REGS (obj));
- AND_COMPL_HARD_REG_SET (conflicting_hard_regs, ira_no_alloc_regs);
- AND_HARD_REG_SET (conflicting_hard_regs,
- reg_class_contents[ALLOCNO_COVER_CLASS (a)]);
- print_hard_reg_set (file, "\n;; total conflict hard regs:",
- conflicting_hard_regs);
-
- COPY_HARD_REG_SET (conflicting_hard_regs, OBJECT_CONFLICT_HARD_REGS (obj));
- AND_COMPL_HARD_REG_SET (conflicting_hard_regs, ira_no_alloc_regs);
- AND_HARD_REG_SET (conflicting_hard_regs,
- reg_class_contents[ALLOCNO_COVER_CLASS (a)]);
- print_hard_reg_set (file, ";; conflict hard regs:",
- conflicting_hard_regs);
- putc ('\n', file);
}
/* Print information about allocno or only regno (if REG_P) conflicts
propagate_copies ();
/* Now we can free memory for the conflict table (see function
- build_allocno_conflicts for details). */
+ build_object_conflicts for details). */
FOR_EACH_OBJECT (obj, oi)
{
if (OBJECT_CONFLICT_ARRAY (obj) != conflicts[OBJECT_CONFLICT_ID (obj)])
ira_free (conflicts);
}
}
- if (! CLASS_LIKELY_SPILLED_P (base_reg_class (VOIDmode, ADDRESS, SCRATCH)))
+ if (! targetm.class_likely_spilled_p (base_reg_class (VOIDmode, ADDRESS,
+ SCRATCH)))
CLEAR_HARD_REG_SET (temp_hard_reg_set);
else
{
}
FOR_EACH_ALLOCNO (a, ai)
{
- ira_object_t obj = ALLOCNO_OBJECT (a);
- reg_attrs *attrs;
- tree decl;
-
- if ((! flag_caller_saves && ALLOCNO_CALLS_CROSSED_NUM (a) != 0)
- /* For debugging purposes don't put user defined variables in
- callee-clobbered registers. */
- || (optimize == 0
- && (attrs = REG_ATTRS (regno_reg_rtx [ALLOCNO_REGNO (a)])) != NULL
- && (decl = attrs->decl) != NULL
- && VAR_OR_FUNCTION_DECL_P (decl)
- && ! DECL_ARTIFICIAL (decl)))
- {
- IOR_HARD_REG_SET (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj), call_used_reg_set);
- IOR_HARD_REG_SET (OBJECT_CONFLICT_HARD_REGS (obj), call_used_reg_set);
- }
- else if (ALLOCNO_CALLS_CROSSED_NUM (a) != 0)
+ int i, n = ALLOCNO_NUM_OBJECTS (a);
+
+ for (i = 0; i < n; i++)
{
- IOR_HARD_REG_SET (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj),
- no_caller_save_reg_set);
- IOR_HARD_REG_SET (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj), temp_hard_reg_set);
- IOR_HARD_REG_SET (OBJECT_CONFLICT_HARD_REGS (obj), no_caller_save_reg_set);
- IOR_HARD_REG_SET (OBJECT_CONFLICT_HARD_REGS (obj), temp_hard_reg_set);
+ ira_object_t obj = ALLOCNO_OBJECT (a, i);
+ reg_attrs *attrs = REG_ATTRS (regno_reg_rtx [ALLOCNO_REGNO (a)]);
+ tree decl;
+
+ if ((! flag_caller_saves && ALLOCNO_CALLS_CROSSED_NUM (a) != 0)
+ /* For debugging purposes don't put user defined variables in
+ callee-clobbered registers. */
+ || (optimize == 0
+ && attrs != NULL
+ && (decl = attrs->decl) != NULL
+ && VAR_OR_FUNCTION_DECL_P (decl)
+ && ! DECL_ARTIFICIAL (decl)))
+ {
+ IOR_HARD_REG_SET (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj),
+ call_used_reg_set);
+ IOR_HARD_REG_SET (OBJECT_CONFLICT_HARD_REGS (obj),
+ call_used_reg_set);
+ }
+ else if (ALLOCNO_CALLS_CROSSED_NUM (a) != 0)
+ {
+ IOR_HARD_REG_SET (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj),
+ no_caller_save_reg_set);
+ IOR_HARD_REG_SET (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj),
+ temp_hard_reg_set);
+ IOR_HARD_REG_SET (OBJECT_CONFLICT_HARD_REGS (obj),
+ no_caller_save_reg_set);
+ IOR_HARD_REG_SET (OBJECT_CONFLICT_HARD_REGS (obj),
+ temp_hard_reg_set);
+ }
+
+ if (ALLOCNO_CALLS_CROSSED_NUM (a) != 0)
+ {
+ int regno;
+
+ /* Allocnos bigger than the saved part of call saved
+ regs must conflict with them. */
+ for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
+ if (!TEST_HARD_REG_BIT (call_used_reg_set, regno)
+ && HARD_REGNO_CALL_PART_CLOBBERED (regno,
+ obj->allocno->mode))
+ {
+ SET_HARD_REG_BIT (OBJECT_CONFLICT_HARD_REGS (obj), regno);
+ SET_HARD_REG_BIT (OBJECT_TOTAL_CONFLICT_HARD_REGS (obj),
+ regno);
+ }
+ }
}
}
if (optimize && ira_conflicts_p
OSDN Git Service
