diff options
Diffstat (limited to 'gcc/alias.c')
| -rw-r--r-- | gcc/alias.c | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/gcc/alias.c b/gcc/alias.c index 24b4605822d..cc74ee8a187 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -342,13 +342,13 @@ objects_must_conflict_p (tree t1, tree t2) static tree find_base_decl (tree t) { - tree d0, d1, d2; + tree d0, d1; if (t == 0 || t == error_mark_node || ! POINTER_TYPE_P (TREE_TYPE (t))) return 0; /* If this is a declaration, return it. */ - if (TREE_CODE_CLASS (TREE_CODE (t)) == 'd') + if (DECL_P (t)) return t; /* Handle general expressions. It would be nice to deal with @@ -356,10 +356,10 @@ find_base_decl (tree t) same, then `a->f' and `b->f' are also the same. */ switch (TREE_CODE_CLASS (TREE_CODE (t))) { - case '1': + case tcc_unary: return find_base_decl (TREE_OPERAND (t, 0)); - case '2': + case tcc_binary: /* Return 0 if found in neither or both are the same. */ d0 = find_base_decl (TREE_OPERAND (t, 0)); d1 = find_base_decl (TREE_OPERAND (t, 1)); @@ -372,21 +372,6 @@ find_base_decl (tree t) else return 0; - case '3': - d0 = find_base_decl (TREE_OPERAND (t, 0)); - d1 = find_base_decl (TREE_OPERAND (t, 1)); - d2 = find_base_decl (TREE_OPERAND (t, 2)); - - /* Set any nonzero values from the last, then from the first. */ - if (d1 == 0) d1 = d2; - if (d0 == 0) d0 = d1; - if (d1 == 0) d1 = d0; - if (d2 == 0) d2 = d1; - - /* At this point all are nonzero or all are zero. If all three are the - same, return it. Otherwise, return zero. */ - return (d0 == d1 && d1 == d2) ? d0 : 0; - default: return 0; } |
