diff options
Diffstat (limited to 'gcc/ada/gcc-interface')
| -rw-r--r-- | gcc/ada/gcc-interface/decl.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/gcc/ada/gcc-interface/decl.c b/gcc/ada/gcc-interface/decl.c index ca48c5a..e6f1d3a 100644 --- a/gcc/ada/gcc-interface/decl.c +++ b/gcc/ada/gcc-interface/decl.c @@ -7391,11 +7391,18 @@ set_rm_size (Uint uint_size, tree gnu_type, Entity_Id gnat_entity) if (CONTAINS_PLACEHOLDER_P (old_size)) old_size = max_size (old_size, true); - /* If the size of the object is a constant, the new size must not be - smaller (the front-end checks this for scalar types). */ + /* If the size of the object is a constant, the new size must not be smaller + (the front-end has verified this for scalar and packed array types). */ if (TREE_CODE (old_size) != INTEGER_CST || TREE_OVERFLOW (old_size) - || (AGGREGATE_TYPE_P (gnu_type) && tree_int_cst_lt (size, old_size))) + || (AGGREGATE_TYPE_P (gnu_type) + && !(TREE_CODE (gnu_type) == ARRAY_TYPE + && TYPE_PACKED_ARRAY_TYPE_P (gnu_type)) + && !(TREE_CODE (gnu_type) == RECORD_TYPE + && TYPE_IS_PADDING_P (gnu_type) + && TREE_CODE (TREE_TYPE (TYPE_FIELDS (gnu_type))) == ARRAY_TYPE + && TYPE_PACKED_ARRAY_TYPE_P (TREE_TYPE (TYPE_FIELDS (gnu_type)))) + && tree_int_cst_lt (size, old_size))) { if (Present (gnat_attr_node)) post_error_ne_tree |