diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/reginfo.c | 28 | ||||
| -rw-r--r-- | gcc/rtl.h | 4 |
3 files changed, 5 insertions, 32 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ab0c165e4d9..c96e331e283 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -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> * config/avr/avr.md (*rotlsi3_8, *rotlsi3_16, *rotlsi3_24 ): Check diff --git a/gcc/reginfo.c b/gcc/reginfo.c index 829ff2a4ffd..f31866602eb 100644 --- a/gcc/reginfo.c +++ b/gcc/reginfo.c @@ -1311,34 +1311,6 @@ init_subregs_of_mode (void) 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 mode. */ bool diff --git a/gcc/rtl.h b/gcc/rtl.h index cd0316018af..ff09d2aedb5 100644 --- a/gcc/rtl.h +++ b/gcc/rtl.h @@ -2245,10 +2245,6 @@ extern void init_reg_sets (void); extern void regclass (rtx, int); extern void reg_scan (rtx, unsigned 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, enum machine_mode); |