diff options
Diffstat (limited to 'gcc/reginfo.c')
| -rw-r--r-- | gcc/reginfo.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/gcc/reginfo.c b/gcc/reginfo.c index 829ff2a..f318666 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 |