/* Mode of the allocno which is the mode of the corresponding
pseudo-register. */
enum machine_mode mode;
- /* Final rtx representation of the allocno. */
- rtx reg;
/* Hard register assigned to given allocno. Negative value means
that memory was allocated to the allocno. During the reload,
spilled allocno has value equal to the corresponding stack slot
reload (at this point pseudo-register has only one allocno) which
did not get stack slot yet. */
int hard_regno;
+ /* Final rtx representation of the allocno. */
+ rtx reg;
/* Allocnos with the same regno are linked by the following member.
Allocnos corresponding to inner loops are first in the list (it
corresponds to depth-first traverse of the loops). */
correspondingly minimal and maximal conflict ids of allocnos with
which given allocno can conflict. */
int min, max;
- /* The unique member value represents given allocno in conflict bit
- vectors. */
- int conflict_id;
/* Vector of accumulated conflicting allocnos with NULL end marker
(if CONFLICT_VEC_P is true) or conflict bit vector otherwise.
Only allocnos with the same cover class are in the vector or in
the bit vector. */
void *conflict_allocno_array;
+ /* The unique member value represents given allocno in conflict bit
+ vectors. */
+ int conflict_id;
/* Allocated size of the previous array. */
unsigned int conflict_allocno_array_size;
- /* Number of accumulated conflicts in the vector of conflicting
- allocnos. */
- int conflict_allocnos_num;
/* Initial and accumulated hard registers conflicting with this
allocno and as a consequences can not be assigned to the allocno.
All non-allocatable hard regs and hard regs of cover classes
different from given allocno one are included in the sets. */
HARD_REG_SET conflict_hard_regs, total_conflict_hard_regs;
+ /* Number of accumulated conflicts in the vector of conflicting
+ allocnos. */
+ int conflict_allocnos_num;
/* Accumulated frequency of calls which given allocno
intersects. */
int call_freq;
/* Accumulated number of the intersected calls. */
int calls_crossed_num;
- /* Non NULL if we remove restoring value from given allocno to
- MEM_OPTIMIZED_DEST at loop exit (see ira-emit.c) because the
- allocno value is not changed inside the loop. */
- ira_allocno_t mem_optimized_dest;
/* TRUE if the allocno assigned to memory was a destination of
removed move (see ira-emit.c) at loop exit because the value of
the corresponding pseudo-register is not changed inside the
vector where a bit with given index represents allocno with the
same number. */
unsigned int conflict_vec_p : 1;
+ /* Non NULL if we remove restoring value from given allocno to
+ MEM_OPTIMIZED_DEST at loop exit (see ira-emit.c) because the
+ allocno value is not changed inside the loop. */
+ ira_allocno_t mem_optimized_dest;
/* Array of usage costs (accumulated and the one updated during
coloring) for each hard register of the allocno cover class. The
member value can be NULL if all costs are the same and equal to
preferences of other allocnos not assigned yet during assigning
to given allocno. */
int *conflict_hard_reg_costs, *updated_conflict_hard_reg_costs;
- /* Number of the same cover class allocnos with TRUE in_graph_p
- value and conflicting with given allocno during each point of
- graph coloring. */
- int left_conflicts_num;
+ /* Size (in hard registers) of the same cover class allocnos with
+ TRUE in_graph_p value and conflicting with given allocno during
+ each point of graph coloring. */
+ int left_conflicts_size;
/* Number of hard registers of the allocno cover class really
available for the allocno allocation. */
int available_regs_num;
((A)->conflict_hard_reg_costs)
#define ALLOCNO_UPDATED_CONFLICT_HARD_REG_COSTS(A) \
((A)->updated_conflict_hard_reg_costs)
-#define ALLOCNO_LEFT_CONFLICTS_NUM(A) ((A)->left_conflicts_num)
+#define ALLOCNO_LEFT_CONFLICTS_SIZE(A) ((A)->left_conflicts_size)
#define ALLOCNO_COVER_CLASS(A) ((A)->cover_class)
#define ALLOCNO_COVER_CLASS_COST(A) ((A)->cover_class_cost)
#define ALLOCNO_UPDATED_COVER_CLASS_COST(A) ((A)->updated_cover_class_cost)
extern HARD_REG_SET ira_reg_mode_hard_regset
[FIRST_PSEUDO_REGISTER][NUM_MACHINE_MODES];
-/* Arrays analogous to macros MEMORY_MOVE_COST and
- REGISTER_MOVE_COST. */
+/* Arrays analogous to macros MEMORY_MOVE_COST and REGISTER_MOVE_COST.
+ Don't use ira_register_move_cost directly. Use function of
+ ira_get_may_move_cost instead. */
extern short ira_memory_move_cost[MAX_MACHINE_MODE][N_REG_CLASSES][2];
extern move_table *ira_register_move_cost[MAX_MACHINE_MODE];
/* Similar to may_move_in_cost but it is calculated in IRA instead of
regclass. Another difference we take only available hard registers
into account to figure out that one register class is a subset of
- the another one. */
+ the another one. Don't use it directly. Use function of
+ ira_get_may_move_cost instead. */
extern move_table *ira_may_move_in_cost[MAX_MACHINE_MODE];
/* Similar to may_move_out_cost but it is calculated in IRA instead of
regclass. Another difference we take only available hard registers
into account to figure out that one register class is a subset of
- the another one. */
+ the another one. Don't use it directly. Use function of
+ ira_get_may_move_cost instead. */
extern move_table *ira_may_move_out_cost[MAX_MACHINE_MODE];
/* Register class subset relation: TRUE if the first class is a subset
\f
+/* Return cost of moving value of MODE from register of class FROM to
+ register of class TO. */
+static inline int
+ira_get_register_move_cost (enum machine_mode mode,
+ enum reg_class from, enum reg_class to)
+{
+ if (ira_register_move_cost[mode] == NULL)
+ ira_init_register_move_cost (mode);
+ return ira_register_move_cost[mode][from][to];
+}
+
+/* Return cost of moving value of MODE from register of class FROM to
+ register of class TO. Return zero if IN_P is true and FROM is
+ subset of TO or if IN_P is false and FROM is superset of TO. */
+static inline int
+ira_get_may_move_cost (enum machine_mode mode,
+ enum reg_class from, enum reg_class to,
+ bool in_p)
+{
+ if (ira_register_move_cost[mode] == NULL)
+ ira_init_register_move_cost (mode);
+ return (in_p
+ ? ira_may_move_in_cost[mode][from][to]
+ : ira_may_move_out_cost[mode][from][to]);
+}
+
+\f
+
/* The iterator for all allocnos. */
typedef struct {
/* The number of the current element in IRA_ALLOCNOS. */
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