diff options
Diffstat (limited to 'gcc/cp/constexpr.c')
| -rw-r--r-- | gcc/cp/constexpr.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/cp/constexpr.c b/gcc/cp/constexpr.c index 4b1f92f..959f025 100644 --- a/gcc/cp/constexpr.c +++ b/gcc/cp/constexpr.c @@ -3299,6 +3299,22 @@ get_or_insert_ctor_field (tree ctor, tree index, int pos_hint = -1) } else if (TREE_CODE (type) == ARRAY_TYPE || TREE_CODE (type) == VECTOR_TYPE) { + if (TREE_CODE (index) == RANGE_EXPR) + { + /* Support for RANGE_EXPR index lookups is currently limited to + accessing an existing element via POS_HINT, or appending a new + element to the end of CTOR. ??? Support for other access + patterns may also be needed. */ + vec<constructor_elt, va_gc> *elts = CONSTRUCTOR_ELTS (ctor); + if (vec_safe_length (elts)) + { + tree lo = TREE_OPERAND (index, 0); + gcc_assert (array_index_cmp (elts->last().index, lo) < 0); + } + CONSTRUCTOR_APPEND_ELT (elts, index, NULL_TREE); + return &elts->last(); + } + HOST_WIDE_INT i = find_array_ctor_elt (ctor, index, /*insert*/true); gcc_assert (i >= 0); constructor_elt *cep = CONSTRUCTOR_ELT (ctor, i); |