/* IRA allocation based on graph coloring.
- Copyright (C) 2006, 2007, 2008
+ Copyright (C) 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by Vladimir Makarov <vmakarov@redhat.com>.
continue;
cost = (cp->second == allocno
- ? ira_register_move_cost[mode][rclass][cover_class]
- : ira_register_move_cost[mode][cover_class][rclass]);
+ ? ira_get_register_move_cost (mode, rclass, cover_class)
+ : ira_get_register_move_cost (mode, cover_class, rclass));
if (decr_p)
cost = -cost;
allocno_spill_priority (ira_allocno_t a)
{
return (ALLOCNO_TEMP (a)
- / (ALLOCNO_LEFT_CONFLICTS_NUM (a)
+ / (ALLOCNO_LEFT_CONFLICTS_SIZE (a)
* ira_reg_class_nregs[ALLOCNO_COVER_CLASS (a)][ALLOCNO_MODE (a)]
+ 1));
}
static void
push_allocno_to_stack (ira_allocno_t allocno)
{
- int conflicts_num, conflict_size, size;
+ int left_conflicts_size, conflict_size, size;
ira_allocno_t a, conflict_allocno;
enum reg_class cover_class;
ira_allocno_conflict_iterator aci;
if (ALLOCNO_IN_GRAPH_P (conflict_allocno)
&& ! ALLOCNO_ASSIGNED_P (conflict_allocno))
{
- conflicts_num = ALLOCNO_LEFT_CONFLICTS_NUM (conflict_allocno);
+ left_conflicts_size
+ = ALLOCNO_LEFT_CONFLICTS_SIZE (conflict_allocno);
conflict_size
= (ira_reg_class_nregs
[cover_class][ALLOCNO_MODE (conflict_allocno)]);
ira_assert
- (ALLOCNO_LEFT_CONFLICTS_NUM (conflict_allocno) >= size);
- if (conflicts_num + conflict_size
+ (ALLOCNO_LEFT_CONFLICTS_SIZE (conflict_allocno) >= size);
+ if (left_conflicts_size + conflict_size
<= ALLOCNO_AVAILABLE_REGS_NUM (conflict_allocno))
{
- ALLOCNO_LEFT_CONFLICTS_NUM (conflict_allocno) -= size;
+ ALLOCNO_LEFT_CONFLICTS_SIZE (conflict_allocno) -= size;
continue;
}
- conflicts_num
- = ALLOCNO_LEFT_CONFLICTS_NUM (conflict_allocno) - size;
+ left_conflicts_size
+ = ALLOCNO_LEFT_CONFLICTS_SIZE (conflict_allocno) - size;
if (uncolorable_allocnos_splay_tree[cover_class] != NULL
&& !ALLOCNO_SPLAY_REMOVED_P (conflict_allocno)
&& USE_SPLAY_P (cover_class))
removed_splay_allocno_vec,
conflict_allocno);
}
- ALLOCNO_LEFT_CONFLICTS_NUM (conflict_allocno) = conflicts_num;
- if (conflicts_num + conflict_size
+ ALLOCNO_LEFT_CONFLICTS_SIZE (conflict_allocno)
+ = left_conflicts_size;
+ if (left_conflicts_size + conflict_size
<= ALLOCNO_AVAILABLE_REGS_NUM (conflict_allocno))
{
delete_allocno_from_bucket
}
cover_class = ALLOCNO_COVER_CLASS (allocno);
ira_assert ((colorable_p
- && (ALLOCNO_LEFT_CONFLICTS_NUM (allocno)
+ && (ALLOCNO_LEFT_CONFLICTS_SIZE (allocno)
+ ira_reg_class_nregs[cover_class][ALLOCNO_MODE (allocno)]
<= ALLOCNO_AVAILABLE_REGS_NUM (allocno)))
|| (! colorable_p
- && (ALLOCNO_LEFT_CONFLICTS_NUM (allocno)
+ && (ALLOCNO_LEFT_CONFLICTS_SIZE (allocno)
+ ira_reg_class_nregs[cover_class][ALLOCNO_MODE
(allocno)]
> ALLOCNO_AVAILABLE_REGS_NUM (allocno))));
* ira_loop_edge_freq (loop_node, regno, true)
+ ira_memory_move_cost[mode][rclass][0]
* ira_loop_edge_freq (loop_node, regno, false))
- - (ira_register_move_cost[mode][rclass][rclass]
+ - (ira_get_register_move_cost (mode, rclass, rclass)
* (ira_loop_edge_freq (loop_node, regno, false)
+ ira_loop_edge_freq (loop_node, regno, true))));
return cost;
ira_allocno_t a1 = (ira_allocno_t) k1, a2 = (ira_allocno_t) k2;
pri1 = (ALLOCNO_TEMP (a1)
- / (ALLOCNO_LEFT_CONFLICTS_NUM (a1)
+ / (ALLOCNO_LEFT_CONFLICTS_SIZE (a1)
* ira_reg_class_nregs[ALLOCNO_COVER_CLASS (a1)][ALLOCNO_MODE (a1)]
+ 1));
pri2 = (ALLOCNO_TEMP (a2)
- / (ALLOCNO_LEFT_CONFLICTS_NUM (a2)
+ / (ALLOCNO_LEFT_CONFLICTS_SIZE (a2)
* ira_reg_class_nregs[ALLOCNO_COVER_CLASS (a2)][ALLOCNO_MODE (a2)]
+ 1));
if ((diff = pri1 - pri2) != 0)
allocno = VEC_pop (ira_allocno_t, removed_splay_allocno_vec);
ALLOCNO_SPLAY_REMOVED_P (allocno) = false;
rclass = ALLOCNO_COVER_CLASS (allocno);
- if (ALLOCNO_LEFT_CONFLICTS_NUM (allocno)
+ if (ALLOCNO_LEFT_CONFLICTS_SIZE (allocno)
+ ira_reg_class_nregs [rclass][ALLOCNO_MODE (allocno)]
> ALLOCNO_AVAILABLE_REGS_NUM (allocno))
splay_tree_insert
}
ira_assert (ALLOCNO_IN_GRAPH_P (allocno)
&& ALLOCNO_COVER_CLASS (allocno) == cover_class
- && (ALLOCNO_LEFT_CONFLICTS_NUM (allocno)
+ && (ALLOCNO_LEFT_CONFLICTS_SIZE (allocno)
+ ira_reg_class_nregs[cover_class][ALLOCNO_MODE
(allocno)]
> ALLOCNO_AVAILABLE_REGS_NUM (allocno)));
ALLOCNO_AVAILABLE_REGS_NUM (allocno) -= n;
}
-/* Set up ALLOCNO_LEFT_CONFLICTS_NUM for ALLOCNO. */
+/* Set up ALLOCNO_LEFT_CONFLICTS_SIZE for ALLOCNO. */
static void
-setup_allocno_left_conflicts_num (ira_allocno_t allocno)
+setup_allocno_left_conflicts_size (ira_allocno_t allocno)
{
int i, hard_regs_num, hard_regno, conflict_allocnos_size;
ira_allocno_t a, conflict_allocno;
if (a == allocno)
break;
}
- ALLOCNO_LEFT_CONFLICTS_NUM (allocno) = conflict_allocnos_size;
+ ALLOCNO_LEFT_CONFLICTS_SIZE (allocno) = conflict_allocnos_size;
}
/* Put ALLOCNO in a bucket corresponding to its number and size of its
if (ALLOCNO_FIRST_COALESCED_ALLOCNO (allocno) != allocno)
return;
ALLOCNO_IN_GRAPH_P (allocno) = true;
- setup_allocno_left_conflicts_num (allocno);
+ setup_allocno_left_conflicts_size (allocno);
setup_allocno_available_regs_num (allocno);
- if (ALLOCNO_LEFT_CONFLICTS_NUM (allocno)
+ if (ALLOCNO_LEFT_CONFLICTS_SIZE (allocno)
+ ira_reg_class_nregs[cover_class][ALLOCNO_MODE (allocno)]
<= ALLOCNO_AVAILABLE_REGS_NUM (allocno))
add_allocno_to_bucket (allocno, &colorable_allocno_bucket);
else
{
cover_class = ALLOCNO_COVER_CLASS (subloop_allocno);
- cost = (ira_register_move_cost[mode][rclass][rclass]
+ cost = (ira_get_register_move_cost (mode, rclass, rclass)
* (exit_freq + enter_freq));
ira_allocate_and_set_or_copy_costs
(&ALLOCNO_UPDATED_HARD_REG_COSTS (subloop_allocno), cover_class,
+= (ira_memory_move_cost[mode][rclass][0] * exit_freq
+ ira_memory_move_cost[mode][rclass][1] * enter_freq);
if (hard_regno2 != hard_regno)
- cost -= (ira_register_move_cost[mode][rclass][rclass]
+ cost -= (ira_get_register_move_cost (mode, rclass, rclass)
* (exit_freq + enter_freq));
}
}
+= (ira_memory_move_cost[mode][rclass][1] * exit_freq
+ ira_memory_move_cost[mode][rclass][0] * enter_freq);
if (hard_regno2 != hard_regno)
- cost -= (ira_register_move_cost[mode][rclass][rclass]
+ cost -= (ira_get_register_move_cost (mode, rclass, rclass)
* (exit_freq + enter_freq));
}
}
if (i < 0)
continue;
cost = (cp->first == a
- ? ira_register_move_cost[mode][rclass][cover_class]
- : ira_register_move_cost[mode][cover_class][rclass]);
+ ? ira_get_register_move_cost (mode, rclass, cover_class)
+ : ira_get_register_move_cost (mode, cover_class, rclass));
ira_allocate_and_set_or_copy_costs
(&ALLOCNO_UPDATED_HARD_REG_COSTS (a),
cover_class, ALLOCNO_COVER_CLASS_COST (a),
int i, j, n, last_coalesced_allocno_num;
ira_allocno_t allocno, a;
bool merged_p = false;
+ bitmap set_jump_crosses = regstat_get_setjmp_crosses ();
slot_coalesced_allocnos_live_ranges
= (allocno_live_range_t *) ira_allocate (sizeof (allocno_live_range_t)
{
allocno = spilled_coalesced_allocnos[i];
if (ALLOCNO_FIRST_COALESCED_ALLOCNO (allocno) != allocno
+ || bitmap_bit_p (set_jump_crosses, ALLOCNO_REGNO (allocno))
|| (ALLOCNO_REGNO (allocno) < ira_reg_equiv_len
&& (ira_reg_equiv_const[ALLOCNO_REGNO (allocno)] != NULL_RTX
|| ira_reg_equiv_invariant_p[ALLOCNO_REGNO (allocno)])))
a = spilled_coalesced_allocnos[j];
n = ALLOCNO_TEMP (a);
if (ALLOCNO_FIRST_COALESCED_ALLOCNO (a) == a
+ && ! bitmap_bit_p (set_jump_crosses, ALLOCNO_REGNO (a))
&& (ALLOCNO_REGNO (a) >= ira_reg_equiv_len
|| (! ira_reg_equiv_invariant_p[ALLOCNO_REGNO (a)]
&& ira_reg_equiv_const[ALLOCNO_REGNO (a)] == NULL_RTX))
}
/* Try to assign a hard register (except for FORBIDDEN_REGS) to
- allocno A and return TRUE in the case of success. That is an
- analog of retry_global_alloc for IRA. */
+ allocno A and return TRUE in the case of success. */
static bool
allocno_reload_assign (ira_allocno_t a, HARD_REG_SET forbidden_regs)
{
bitmap_iterator bi;
struct ira_spilled_reg_stack_slot *slot = NULL;
- ira_assert (flag_ira && inherent_size == PSEUDO_REGNO_BYTES (regno)
+ ira_assert (inherent_size == PSEUDO_REGNO_BYTES (regno)
&& inherent_size <= total_size
&& ALLOCNO_HARD_REGNO (allocno) < 0);
if (! flag_ira_share_spill_slots)
if (x != NULL_RTX)
{
ira_assert (slot->width >= total_size);
+#ifdef ENABLE_IRA_CHECKING
EXECUTE_IF_SET_IN_BITMAP (&slot->spilled_regs,
FIRST_PSEUDO_REGISTER, i, bi)
{
ira_assert (! pseudos_have_intersected_live_ranges_p (regno, i));
}
+#endif
SET_REGNO_REG_SET (&slot->spilled_regs, regno);
if (internal_flag_ira_verbose > 3 && ira_dump_file)
{
int slot_num;
ira_allocno_t allocno;
- ira_assert (flag_ira && PSEUDO_REGNO_BYTES (regno) <= total_size);
+ ira_assert (PSEUDO_REGNO_BYTES (regno) <= total_size);
allocno = ira_regno_allocno_map[regno];
slot_num = -ALLOCNO_HARD_REGNO (allocno) - 2;
if (slot_num == -1)
* ira_max_point);
for (i = 0; i < ira_max_point; i++)
CLEAR_HARD_REG_SET (used_hard_regs[i]);
- qsort (sorted_allocnos, ira_allocnos_num, sizeof (ira_allocno_t),
+ qsort (sorted_allocnos, num, sizeof (ira_allocno_t),
allocno_priority_compare_func);
for (i = 0; i < num; i++)
{
ALLOCNO_UPDATED_MEMORY_COST (a) = ALLOCNO_MEMORY_COST (a);
ALLOCNO_UPDATED_COVER_CLASS_COST (a) = ALLOCNO_COVER_CLASS_COST (a);
}
- if (optimize)
+ if (ira_conflicts_p)
color ();
else
fast_allocation ();
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