GCC modified for the FreeChainXenon project
86caab6c5d
As the following testcases shows, when adding static operator[] support I've missed that the 2 build_min_non_dep_op_overload functions need to be adjusted. The first one we only use for the single index case, but as cp_tree_code_length (ARRAY_REF) is 2, we were running into an assertion there which compared nargs and expected_nargs. For ARRAY_REF, the operator[] is either a non-static member or newly static member, never out of class and for the static member case if user uses single index the operator[] needs to have a single argument as well, but the function is called with 2 - the object it is invoked on and the index. We need to evaluate side-effects of the object and use just a single argument in the call - the index. The other build_min_non_dep_op_overload overload has been added solely for ARRAY_REF - CALL_EXPR is the other operator that accepts variable number of operands but that one goes through different routines. There we asserted it is a METHOD_TYPE, so again we shouldn't assert that but handle the case when it is not one by making sure object's side-effects are evaluated if needed and passing all the index arguments to the static operator[]. 2023-01-19 Jakub Jelinek <jakub@redhat.com> PR c++/108437 * cp-tree.h (keep_unused_object_arg): Declare. * call.cc (keep_unused_object_arg): No longer static. * tree.cc (build_min_non_dep_op_overload): Handle ARRAY_REF with overload being static member function. * g++.dg/cpp23/subscript12.C: New test. * g++.dg/cpp23/subscript13.C: New test. |
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