diff options
Diffstat (limited to 'gcc/c-decl.c')
| -rw-r--r-- | gcc/c-decl.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/gcc/c-decl.c b/gcc/c-decl.c index 49a530c..0655197 100644 --- a/gcc/c-decl.c +++ b/gcc/c-decl.c @@ -4570,14 +4570,26 @@ check_bitfield_type_and_width (tree *type, tree *width, tree orig_name) /* Detect and ignore out of range field width and process valid field widths. */ - if (!INTEGRAL_TYPE_P (TREE_TYPE (*width)) - || TREE_CODE (*width) != INTEGER_CST) + if (!INTEGRAL_TYPE_P (TREE_TYPE (*width))) { error ("bit-field %qs width not an integer constant", name); *width = integer_one_node; } else { + if (TREE_CODE (*width) != INTEGER_CST) + { + *width = c_fully_fold (*width, false, NULL); + if (TREE_CODE (*width) == INTEGER_CST) + pedwarn (input_location, OPT_pedantic, + "bit-field %qs width not an integer constant expression", + name); + } + if (TREE_CODE (*width) != INTEGER_CST) + { + error ("bit-field %qs width not an integer constant", name); + *width = integer_one_node; + } constant_expression_warning (*width); if (tree_int_cst_sgn (*width) < 0) { |