diff options
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 17 |
1 files changed, 11 insertions, 6 deletions
@@ -11872,18 +11872,23 @@ build_alloca_call_expr (tree size, unsigned int align, HOST_WIDE_INT max_size) } } -/* Create a new constant string literal consisting of elements of type - ELTYPE and return a tree node representing char* pointer to it as - an ADDR_EXPR (ARRAY_REF (ELTYPE, ...)). The STRING_CST value is - the LEN bytes at STR (the representation of the string, which may +/* Create a new constant string literal of type ELTYPE[SIZE] (or LEN + if SIZE == -1) and return a tree node representing char* pointer to + it as an ADDR_EXPR (ARRAY_REF (ELTYPE, ...)). The STRING_CST value + is the LEN bytes at STR (the representation of the string, which may be wide). */ tree build_string_literal (int len, const char *str, - tree eltype /* = char_type_node */) + tree eltype /* = char_type_node */, + unsigned HOST_WIDE_INT size /* = -1 */) { tree t = build_string (len, str); - tree index = build_index_type (size_int (len - 1)); + /* Set the maximum valid index based on the string length or SIZE. */ + unsigned HOST_WIDE_INT maxidx + = (size == HOST_WIDE_INT_M1U ? len : size) - 1; + + tree index = build_index_type (size_int (maxidx)); eltype = build_type_variant (eltype, 1, 0); tree type = build_array_type (eltype, index); TREE_TYPE (t) = type; |