diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/cp/tree.cc | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/cp/tree.cc b/gcc/cp/tree.cc index aa9c1b7..6d968a2 100644 --- a/gcc/cp/tree.cc +++ b/gcc/cp/tree.cc @@ -104,7 +104,17 @@ lvalue_kind (const_tree ref) case REALPART_EXPR: case IMAGPART_EXPR: case VIEW_CONVERT_EXPR: - return lvalue_kind (TREE_OPERAND (ref, 0)); + op1_lvalue_kind = lvalue_kind (TREE_OPERAND (ref, 0)); + /* As for ARRAY_REF and COMPONENT_REF, these codes turn a class prvalue + into an xvalue: we need to materialize the temporary before we mess + with it. Except VIEW_CONVERT_EXPR that doesn't actually change the + type, as in location wrapper and REF_PARENTHESIZED_P. */ + if (op1_lvalue_kind == clk_class + && !(TREE_CODE (ref) == VIEW_CONVERT_EXPR + && (same_type_ignoring_top_level_qualifiers_p + (TREE_TYPE (ref), TREE_TYPE (TREE_OPERAND (ref, 0)))))) + return clk_rvalueref; + return op1_lvalue_kind; case ARRAY_REF: { |