diff options
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index a649c43..48f9813 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -5760,6 +5760,7 @@ finish_enum (tree enumtype, tree values, tree attributes) unsign = (tree_int_cst_sgn (minnode) >= 0); precision = MAX (min_precision (minnode, unsign), min_precision (maxnode, unsign)); + if (TYPE_PACKED (enumtype) || precision > TYPE_PRECISION (integer_type_node)) { tem = c_common_type_for_size (precision, unsign); @@ -5774,9 +5775,19 @@ finish_enum (tree enumtype, tree values, tree attributes) TYPE_MIN_VALUE (enumtype) = TYPE_MIN_VALUE (tem); TYPE_MAX_VALUE (enumtype) = TYPE_MAX_VALUE (tem); - TYPE_PRECISION (enumtype) = TYPE_PRECISION (tem); TYPE_UNSIGNED (enumtype) = TYPE_UNSIGNED (tem); TYPE_SIZE (enumtype) = 0; + + /* If the precision of the type was specific with an attribute and it + was too small, give an error. Otherwise, use it. */ + if (TYPE_PRECISION (enumtype)) + { + if (precision > TYPE_PRECISION (enumtype)) + error ("specified mode too small for enumeral values"); + } + else + TYPE_PRECISION (enumtype) = TYPE_PRECISION (tem); + layout_type (enumtype); if (values != error_mark_node) |