diff options
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index e4efda0..66bcbbc 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -12470,7 +12470,8 @@ fold_ternary (enum tree_code code, tree type, tree op0, tree op1, tree op2) gcc_unreachable (); case BIT_FIELD_REF: - if (TREE_CODE (arg0) == VECTOR_CST + if ((TREE_CODE (arg0) == VECTOR_CST + || (TREE_CODE (arg0) == CONSTRUCTOR && TREE_CONSTANT (arg0))) && type == TREE_TYPE (TREE_TYPE (arg0)) && host_integerp (arg1, 1) && host_integerp (op2, 1)) @@ -12484,7 +12485,18 @@ fold_ternary (enum tree_code code, tree type, tree op0, tree op1, tree op2) && (idx = idx / width) < TYPE_VECTOR_SUBPARTS (TREE_TYPE (arg0))) { - tree elements = TREE_VECTOR_CST_ELTS (arg0); + tree elements = NULL_TREE; + + if (TREE_CODE (arg0) == VECTOR_CST) + elements = TREE_VECTOR_CST_ELTS (arg0); + else + { + unsigned HOST_WIDE_INT idx; + tree value; + + FOR_EACH_CONSTRUCTOR_VALUE (CONSTRUCTOR_ELTS (arg0), idx, value) + elements = tree_cons (NULL_TREE, value, elements); + } while (idx-- > 0 && elements) elements = TREE_CHAIN (elements); if (elements) |