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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++/101889] New: [11/12 Regression] ICE with template argument deduction of broken template
Date: Thu, 12 Aug 2021 18:08:42 +0000 [thread overview]
Message-ID: <bug-101889-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101889
Bug ID: 101889
Summary: [11/12 Regression] ICE with template argument
deduction of broken template
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 11:
==============================
template<int> struct A {};
template<T> struct B
{
enum { E = 0 };
B(A<E>) {}
};
B b = A<0>();
==============================
bug.cc:3:10: error: 'T' has not been declared
3 | template<T> struct B
| ^
bug.cc:9:12: internal compiler error: tree check: expected enumeral_type, have
error_mark in tsubst_copy, at cp/pt.c:16588
9 | B b = A<0>();
| ^
0x85a540 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/gcc/tree.c:8686
0x6e74ea tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/gcc/tree.h:3373
0x6e74ea tsubst_copy
../../gcc/gcc/cp/pt.c:16588
0xaf1eb4 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc/gcc/cp/pt.c:20870
0xafd357 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc/gcc/cp/pt.c:19092
0xb12264 tsubst_template_args(tree_node*, tree_node*, int, tree_node*)
../../gcc/gcc/cp/pt.c:13355
0xb1b763 tsubst_aggr_type
../../gcc/gcc/cp/pt.c:13559
0xb1be34 tsubst_arg_types
../../gcc/gcc/cp/pt.c:14958
0xb1ed5a tsubst_arg_types
../../gcc/gcc/cp/pt.c:14935
0xb1ed5a build_deduction_guide
../../gcc/gcc/cp/pt.c:28776
0xaec0b6 ctor_deduction_guides_for
../../gcc/gcc/cp/pt.c:29184
0xaec0b6 deduction_guides_for
../../gcc/gcc/cp/pt.c:29257
0xaec576 do_class_deduction
../../gcc/gcc/cp/pt.c:29378
0xaec576 do_auto_deduction(tree_node*, tree_node*, tree_node*, int,
auto_deduction_context, tree_node*, int)
../../gcc/gcc/cp/pt.c:29535
0x9d9608 cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
../../gcc/gcc/cp/decl.c:7856
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
Please submit a full bug report, [etc.]
next reply other threads:[~2021-08-12 18:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-12 18:08 reichelt at gcc dot gnu.org [this message]
2021-08-13 7:51 ` [Bug c++/101889] [11/12 Regression] ICE with template argument deduction of broken template since r11-2748-gb871301f09be7061 marxin at gcc dot gnu.org
2021-08-16 8:56 ` rguenth at gcc dot gnu.org
2022-04-21 7:50 ` rguenth at gcc dot gnu.org
2023-05-29 10:05 ` [Bug c++/101889] [11/12/13/14 " jakub at gcc dot gnu.org
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