diff options
Diffstat (limited to 'gcc/alias.c')
| -rw-r--r-- | gcc/alias.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/alias.c b/gcc/alias.c index 3802e67..912be48 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -278,6 +278,24 @@ alias_sets_conflict_p (set1, set2) return 0; } +/* Set the alias set of MEM to SET. */ + +void +set_mem_alias_set (mem, set) + rtx mem; + HOST_WIDE_INT set; +{ + /* We would like to do this test but can't yet since when converting a + REG to a MEM, the alias set field is undefined. */ +#if 0 + /* If the new and old alias sets don't conflict, something is wrong. */ + if (!alias_sets_conflict_p (set, MEM_ALIAS_SET (mem))) + abort (); +#endif + + MEM_ALIAS_SET (mem) = set; +} + /* Return 1 if TYPE is a RECORD_TYPE, UNION_TYPE, or QUAL_UNION_TYPE and has has any readonly fields. If any of the fields have types that contain readonly fields, return true as well. */ |