https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84449
Bug ID: 84449
Summary: [7/8 Regression] ICE with constexpr and deleted
destructor
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Keywords: error-recovery, ice-on-invalid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: reichelt at gcc dot gnu.org
Target Milestone: ---
The following invalid code snippet (compiled with "-std=c++1z")
triggers an ICE since GCC 7.1.0:
================================
struct A
{
constexpr A(int) {}
~A() = delete;
};
struct B
{
A a;
constexpr B() : a(0) {}
};
================================
bug.cc: In constructor 'constexpr B::B()':
bug.cc:10:22: error: use of deleted function 'A::~A()'
constexpr B() : a(0) {}
^
bug.cc:4:3: note: declared here
~A() = delete;
^
bug.cc:10:25: error: use of deleted function 'A::~A()'
constexpr B() : a(0) {}
^
bug.cc:4:3: note: declared here
~A() = delete;
^
bug.cc:10:25: internal compiler error: tree check: expected target_expr, have
error_mark in bot_manip, at cp/tree.c:2906
constexpr B() : a(0) {}
^
0x78a40a tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/gcc/tree.c:9335
0x668c3b tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/gcc/tree.h:3132
0x668c3b bot_manip
../../gcc/gcc/cp/tree.c:2906
0x115823b walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, default_hash_traits<tree_node*> >*, tree_node*
(*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*), void*,
hash_set<tree_node*, default_hash_traits<tree_node*> >*))
../../gcc/gcc/tree.c:11400
0x9bd869 break_out_target_exprs(tree_node*)
../../gcc/gcc/cp/tree.c:3028
0x84d8d1 build_data_member_initialization
../../gcc/gcc/cp/constexpr.c:341
0x84e3fd build_constexpr_constructor_member_initializers
../../gcc/gcc/cp/constexpr.c:592
0x84e3fd massage_constexpr_body
../../gcc/gcc/cp/constexpr.c:726
0x858696 register_constexpr_fundef(tree_node*, tree_node*)
../../gcc/gcc/cp/constexpr.c:848
0x897f7f maybe_save_function_definition
../../gcc/gcc/cp/decl.c:15544
0x897f7f finish_function(bool)
../../gcc/gcc/cp/decl.c:15675
0x933ec9 cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:26691
0x935b9c cp_parser_late_parsing_for_member
../../gcc/gcc/cp/parser.c:27568
0x927fac cp_parser_class_specifier_1
../../gcc/gcc/cp/parser.c:22716
0x929269 cp_parser_class_specifier
../../gcc/gcc/cp/parser.c:22742
0x929269 cp_parser_type_specifier
../../gcc/gcc/cp/parser.c:16748
0x936416 cp_parser_decl_specifier_seq
../../gcc/gcc/cp/parser.c:13606
0x93bae0 cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:12916
0x93ca88 cp_parser_block_declaration
../../gcc/gcc/cp/parser.c:12863
0x9409e2 cp_parser_declaration
../../gcc/gcc/cp/parser.c:12761
Please submit a full bug report, [etc.]
