https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84578
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-02-27
CC| |msebor at gcc dot gnu.org
Known to work| |4.5.4, 5.4.0
Ever confirmed|0 |1
Known to fail| |6.4.0, 7.3.0, 8.0
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed. The ICE was introduced by my r231665 in GCC 6.0.0:
r231665 | msebor | 2015-12-15 16:04:08 -0500 (Tue, 15 Dec 2015) | 71 lines
gcc/cp/ChangeLog:
2015-12-15 Martin Sebor <[email protected]>
c++/42121
c++/68478
c++/68613
c++/68689
c++/68710
* class.c (walk_subobject_offsets): Avoid assuming type domain
is non-null or has an upper bound.
(layout_class_type): Include type size in error message.
(flexmems_t): New type.
(field_nonempty_p, find_flexarrays, diagnose_flexarrays)
(check_flexarrays): New functions.
(finish_struct_1): Call check_flexarrays.
* decl.c (compute_array_index_type): Distinguish flexible array
members from zero-length arrays.
(grokdeclarator): Reject flexible array members in unions. Avoid
rejecting members of incomplete types that are flexible array members.
* error.c (dump_type_suffix): Handle flexible array members with null
upper bound.
* init.c (perform_member_init): Same.
* pt.c (instantiate_class_template_1): Allow flexible array members.
(tsubst): Handle flexible array members with null upper bound.
* typeck2.c (digest_init_r): Warn for initialization of flexible
array members.
(process_init_constructor_record): Handle flexible array members.
gcc/ChangeLog:
2015-12-15 Martin Sebor <[email protected]>
c++/42121
* tree-chkp.c (chkp_find_bound_slots_1): Handle flexible array
members.
* tree.c (type_contains_placeholder_1): Avoid assuming type has
a non-null domain or an upper bound to handle flexible array
members.
* varasm.c (output_constructor_regular_field): Same.
(output_constructor): Set min_index to integer_zero_node rather
than null when a type has no domain to avoid crashing later.
