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regclass.c (contains_reg_of_mode): Make global.

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* regclass.c (contains_reg_of_mode): Make global.
	(init_reg_sets): Remove contains_reg_of_mode; take into account
	CLASS_MAX_NREGS when looking for the proper mode.
	(dump_regclass): Dump only classes considered for the pseudo.
	(regclass): Use contains_reg_of_mode.

From-SVN: r39891
This commit is contained in:
Jan Hubicka 2001-02-19 16:50:20 +01:00 committed by Jan Hubicka
parent 4a88a060b7
commit 6df26b8f23
2 changed files with 31 additions and 11 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
Mon Feb 19 16:47:39 CET 2001 Jan Hubicka <jh@suse.cz>
* regclass.c (contains_reg_of_mode): Make global.
(init_reg_sets): Remove contains_reg_of_mode; take into account
CLASS_MAX_NREGS when looking for the proper mode.
(dump_regclass): Dump only classes considered for the pseudo.
(regclass): Use contains_reg_of_mode.
Mon Feb 19 16:45:42 CET 2001 Jan Hubicka <jh@suse.cz>
* gcc.c (do_spec_1): 'n' for printing notices.

34
gcc/regclass.c
View File

@ -174,6 +174,10 @@ const char * reg_names[] = REGISTER_NAMES;
enum machine_mode reg_raw_mode[FIRST_PSEUDO_REGISTER];
/* 1 if class does contain register of given mode. */
static char contains_reg_of_mode [N_REG_CLASSES] [MAX_MACHINE_MODE];
/* Maximum cost of moving from a register in one class to a register in
another class. Based on REGISTER_MOVE_COST. */
@ -288,7 +292,6 @@ init_reg_sets_1 ()
{
register unsigned int i, j;
register unsigned int /* enum machine_mode */ m;
char contains_reg_of_mode [N_REG_CLASSES] [MAX_MACHINE_MODE];
char allocatable_regs_of_mode [MAX_MACHINE_MODE];
/* This macro allows the fixed or call-used registers
@ -429,14 +432,15 @@ init_reg_sets_1 ()
memset (allocatable_regs_of_mode, 0, sizeof (allocatable_regs_of_mode));
for (m = 0; m < MAX_MACHINE_MODE; m++)
for (i = 0; i < N_REG_CLASSES; i++)
for (j = 0; j < FIRST_PSEUDO_REGISTER; j++)
if (!fixed_regs [j] && TEST_HARD_REG_BIT (reg_class_contents[i], j)
&& HARD_REGNO_MODE_OK (j, m))
{
contains_reg_of_mode [i][m] = 1;
allocatable_regs_of_mode [m] = 1;
break;
}
if (CLASS_MAX_NREGS (i, m) <= reg_class_size[i])
for (j = 0; j < FIRST_PSEUDO_REGISTER; j++)
if (!fixed_regs [j] && TEST_HARD_REG_BIT (reg_class_contents[i], j)
&& HARD_REGNO_MODE_OK (j, m))
{
contains_reg_of_mode [i][m] = 1;
allocatable_regs_of_mode [m] = 1;
break;
}
/* Initialize the move cost table. Find every subset of each class
and take the maximum cost of moving any subset to any other. */
@ -860,6 +864,15 @@ dump_regclass (dump)
{
fprintf (dump, " Register %i costs:", i);
for (class = 0; class < N_REG_CLASSES; class++)
if (contains_reg_of_mode [class][PSEUDO_REGNO_MODE (i)]
#ifdef FORBIDDEN_INC_DEC_CLASSES
&& (!in_inc_dec[i] || !forbidden_inc_dec_class[class])
#endif
#ifdef CLASS_CANNOT_CHANGE_MODE
&& (!REGNO_REG_SET_P (reg_changes_mode, i)
|| class_can_change_mode [class])
#endif
)
fprintf (dump, " %s:%i", reg_class_names[(int) class],
costs[i].cost[class]);
fprintf (dump, " MEM:%i\n", costs[i].mem_cost);
@ -1224,8 +1237,7 @@ regclass (f, nregs, dump)
{
/* Ignore classes that are too small for this operand or
invalid for a operand that was auto-incremented. */
if (CLASS_MAX_NREGS (class, PSEUDO_REGNO_MODE (i))
> reg_class_size[class]
if (!contains_reg_of_mode [class][PSEUDO_REGNO_MODE (i)]
#ifdef FORBIDDEN_INC_DEC_CLASSES
|| (in_inc_dec[i] && forbidden_inc_dec_class[class])
#endif