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reginfo.c (cannot_change_mode_set_regs): Remove.

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* reginfo.c (cannot_change_mode_set_regs): Remove.
	* rtl.h: Remove the prototype for cannot_change_mode_set_regs.

From-SVN: r146310
This commit is contained in:
Kazu Hirata 2009-04-18 11:45:08 +00:00 committed by Kazu Hirata
parent ee7e3ad3d1
commit 579e694c11
3 changed files with 5 additions and 32 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2009-04-18 Kazu Hirata <kazu@codesourcery.com>
* reginfo.c (cannot_change_mode_set_regs): Remove.
* rtl.h: Remove the prototype for cannot_change_mode_set_regs.
2009-04-08 Anatoly Sokolov <aesok@post.ru> 2009-04-08 Anatoly Sokolov <aesok@post.ru>
* config/avr/avr.md (*rotlsi3_8, *rotlsi3_16, *rotlsi3_24 ): Check * config/avr/avr.md (*rotlsi3_8, *rotlsi3_16, *rotlsi3_24 ): Check

28
gcc/reginfo.c
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@ -1311,34 +1311,6 @@ init_subregs_of_mode (void)
return 0; return 0;
} }
/* Set bits in *USED which correspond to registers which can't change
their mode from FROM to any mode in which REGNO was
encountered. */
void
cannot_change_mode_set_regs (HARD_REG_SET *used, enum machine_mode from,
unsigned int regno)
{
struct subregs_of_mode_node dummy, *node;
enum machine_mode to;
unsigned char mask;
unsigned int i;
gcc_assert (subregs_of_mode);
dummy.block = regno & -8;
node = (struct subregs_of_mode_node *)
htab_find_with_hash (subregs_of_mode, &dummy, dummy.block);
if (node == NULL)
return;
mask = 1 << (regno & 7);
for (to = VOIDmode; to < NUM_MACHINE_MODES; to++)
if (node->modes[to] & mask)
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (!TEST_HARD_REG_BIT (*used, i)
&& REG_CANNOT_CHANGE_MODE_P (i, from, to))
SET_HARD_REG_BIT (*used, i);
}
/* Return 1 if REGNO has had an invalid mode change in CLASS from FROM /* Return 1 if REGNO has had an invalid mode change in CLASS from FROM
mode. */ mode. */
bool bool

4
gcc/rtl.h
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@ -2245,10 +2245,6 @@ extern void init_reg_sets (void);
extern void regclass (rtx, int); extern void regclass (rtx, int);
extern void reg_scan (rtx, unsigned int); extern void reg_scan (rtx, unsigned int);
extern void fix_register (const char *, int, int); extern void fix_register (const char *, int, int);
#ifdef HARD_CONST
extern void cannot_change_mode_set_regs (HARD_REG_SET *,
enum machine_mode, unsigned int);
#endif
extern bool invalid_mode_change_p (unsigned int, enum reg_class, extern bool invalid_mode_change_p (unsigned int, enum reg_class,
enum machine_mode); enum machine_mode);