https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79900
Bug ID: 79900
Summary: [5/6/7 Regression] ICE in strip_typedefs, at
cp/tree.c:1554
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
Target Milestone: ---
Starting from 4.7.0, we started to ICE on:
$ g++ /home/marxin/Programming/gcc/gcc/testsuite/g++.dg/eh/unwind2.C -Wpadded
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/eh/unwind2.C: In
instantiation of ‘class std::basic_filebuf<char, std::char_traits<char> >’:
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/eh/unwind2.C:93:18:
required from here
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/eh/unwind2.C:70:16: warning:
padding struct to align ‘std::basic_filebuf<char, std::char_traits<char>
>::_M_pback_cur_save’ [-Wpadded]
char_type *_M_pback_cur_save;
^~~~~~~~~~~~~~~~~
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/eh/unwind2.C:61:55: warning:
padding struct size to alignment boundary [-Wpadded]
template <typename _CharT, typename _Traits> struct basic_filebuf : public
basic_streambuf <_CharT, _Traits>
^~~~~~~~~~~~~
‘
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/eh/unwind2.C: In
instantiation of ‘struct std::fpos<mbstate_t>’:
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/eh/unwind2.C:83:3: in
strip_typedefs, at cp/tree.c:1554
template <typename _StateT> struct fpos
^~~~
0x86b7d9 strip_typedefs(tree_node*, bool*)
../../gcc/cp/tree.c:1554
0x783b81 dump_template_bindings
../../gcc/cp/error.c:357
0x783b81 dump_substitution
../../gcc/cp/error.c:1494
0x7847ab dump_substitution
../../gcc/cp/error.c:1528
0x7847ab dump_function_decl
../../gcc/cp/error.c:1649
0x790c02 decl_to_string
../../gcc/cp/error.c:3028
0x790c02 cp_printer
../../gcc/cp/error.c:3605
0x15fd79f pp_format(pretty_printer*, text_info*)
../../gcc/pretty-print.c:679
0x15fe780 pp_format_verbatim(pretty_printer*, text_info*)
../../gcc/pretty-print.c:738
0x15fe854 pp_verbatim(pretty_printer*, char const*, ...)
../../gcc/pretty-print.c:939
0x78256d print_instantiation_partial_context_line
../../gcc/cp/error.c:3405
0x78256d print_instantiation_partial_context
../../gcc/cp/error.c:3515
0x78256d print_instantiation_full_context
../../gcc/cp/error.c:3394
0x78256d maybe_print_instantiation_context
../../gcc/cp/error.c:3531
0x78c4af cp_diagnostic_starter
../../gcc/cp/error.c:3224
0x15f0b84 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
../../gcc/diagnostic.c:962
0x15f0ed3 diagnostic_impl
../../gcc/diagnostic.c:1084
0x15f124c warning(int, char const*, ...)
../../gcc/diagnostic.c:1172
0xde474d finalize_record_size
../../gcc/stor-layout.c:1583
0xde474d finish_record_layout(record_layout_info_s*, int)
../../gcc/stor-layout.c:2023
