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From: "reichelt at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/101903] New: [9/10/11/12 Regression] ICE with invalid constexpr constructor in template class
Date: Fri, 13 Aug 2021 20:15:56 +0000 [thread overview]
Message-ID: <bug-101903-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101903
Bug ID: 101903
Summary: [9/10/11/12 Regression] ICE with invalid constexpr
constructor in template class
Product: gcc
Version: 12.0
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 triggers an ICE since GCC 7.1.0:
===============================
template<int> struct A
{
int i{};
A();
constexpr A(int) : A() {}
};
constexpr A<0> a{0};
===============================
bug.cc:9:19: error: 'constexpr A<<anonymous> >::A(int) [with int <anonymous> =
0]' called in a constant expression
9 | constexpr A<0> a{0};
| ^
bug.cc:6:13: note: 'constexpr A<<anonymous> >::A(int) [with int <anonymous> =
0]' is not usable as a 'constexpr' function because:
6 | constexpr A(int) : A() {}
| ^
bug.cc:6:13: internal compiler error: in build_data_member_initialization, at
cp/constexpr.c:400
0x66cf30 build_data_member_initialization
../../gcc/gcc/cp/constexpr.c:400
0x960432 build_constexpr_constructor_member_initializers
../../gcc/gcc/cp/constexpr.c:612
0x960432 massage_constexpr_body
../../gcc/gcc/cp/constexpr.c:738
0x96ce3d explain_invalid_constexpr_fn(tree_node*)
../../gcc/gcc/cp/constexpr.c:982
0x9621e1 cxx_eval_call_expression
../../gcc/gcc/cp/constexpr.c:2594
0x96543c cxx_eval_constant_expression
../../gcc/gcc/cp/constexpr.c:6269
0x968cc4 cxx_eval_outermost_constant_expr
../../gcc/gcc/cp/constexpr.c:7301
0x96da7e maybe_constant_init_1
../../gcc/gcc/cp/constexpr.c:7756
0xb9902a store_init_value(tree_node*, tree_node*, vec<tree_node*, va_gc,
vl_embed>**, int)
../../gcc/gcc/cp/typeck2.c:777
0x9b4cc6 check_initializer
../../gcc/gcc/cp/decl.c:7185
0x9dab09 cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
../../gcc/gcc/cp/decl.c:8119
0xac5174 cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:22556
0xaa0773 cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:15088
0xacfdb5 cp_parser_declaration
../../gcc/gcc/cp/parser.c:14787
0xad078e cp_parser_toplevel_declaration
../../gcc/gcc/cp/parser.c:14808
0xad078e cp_parser_translation_unit
../../gcc/gcc/cp/parser.c:4978
0xad078e c_parse_file()
../../gcc/gcc/cp/parser.c:46558
0xbf924d c_common_parse_file()
../../gcc/gcc/c-family/c-opts.c:1223
Please submit a full bug report, [etc.]
next reply other threads:[~2021-08-13 20:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-13 20:15 reichelt at gcc dot gnu.org [this message]
2021-08-16 7:59 ` [Bug c++/101903] " marxin at gcc dot gnu.org
2021-08-16 9:00 ` rguenth at gcc dot gnu.org
2022-05-27 9:46 ` [Bug c++/101903] [10/11/12/13 " rguenth at gcc dot gnu.org
2022-06-28 10:46 ` jakub at gcc dot gnu.org
2023-07-07 10:40 ` [Bug c++/101903] [11/12/13/14 " rguenth at gcc dot gnu.org
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