[Bug c++/84733] New: internal compiler error: Segmentation fault (check_local_shadow())
vegard.nossum at gmail dot com
gcc-bugzilla@gcc.gnu.org
Tue Mar 6 13:46:00 GMT 2018
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84733
Bug ID: 84733
Summary: internal compiler error: Segmentation fault
(check_local_shadow())
Product: gcc
Version: 8.0.1
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: vegard.nossum at gmail dot com
CC: webrown.cpp at gmail dot com
Target Milestone: ---
Input:
struct c {
~c();
} b;
void f() {
try {
d:
;
} catch (int) {
}
decltype(b) a;
int e;
struct e f;
}
Output:
$ xgcc -x c++ -S -
<stdin>:14:10: internal compiler error: Segmentation fault
0x3152ce9 crash_signal
/home/vegard/git/gcc/gcc/toplev.c:325
0xe47760 check_local_shadow
/home/vegard/git/gcc/gcc/cp/name-lookup.c:2683
0xe5b1b7 do_pushdecl
/home/vegard/git/gcc/gcc/cp/name-lookup.c:3086
0xe6030f pushdecl(tree_node*, bool)
/home/vegard/git/gcc/gcc/cp/name-lookup.c:3154
0xe6030f do_pushdecl_with_scope
/home/vegard/git/gcc/gcc/cp/name-lookup.c:3982
0xe62f98 do_pushtag
/home/vegard/git/gcc/gcc/cp/name-lookup.c:6444
0xe62f98 pushtag(tree_node*, tree_node*, tag_scope)
/home/vegard/git/gcc/gcc/cp/name-lookup.c:6514
0xb5f965 xref_tag_1
/home/vegard/git/gcc/gcc/cp/decl.c:13726
0xb5f965 xref_tag(tag_types, tree_node*, tag_scope, bool)
/home/vegard/git/gcc/gcc/cp/decl.c:13783
0xf8396d cp_parser_elaborated_type_specifier
/home/vegard/git/gcc/gcc/cp/parser.c:17918
0xf2265c cp_parser_type_specifier
/home/vegard/git/gcc/gcc/cp/parser.c:16802
0xf8858a cp_parser_decl_specifier_seq
/home/vegard/git/gcc/gcc/cp/parser.c:13629
0xfa3a70 cp_parser_simple_declaration
/home/vegard/git/gcc/gcc/cp/parser.c:12938
0xfab998 cp_parser_block_declaration
/home/vegard/git/gcc/gcc/cp/parser.c:12883
0xfade64 cp_parser_declaration_statement
/home/vegard/git/gcc/gcc/cp/parser.c:12476
0xefab2b cp_parser_statement
/home/vegard/git/gcc/gcc/cp/parser.c:10925
0xefe5eb cp_parser_statement_seq_opt
/home/vegard/git/gcc/gcc/cp/parser.c:11274
0xeff08a cp_parser_compound_statement
/home/vegard/git/gcc/gcc/cp/parser.c:11228
0xf9283b cp_parser_function_body
/home/vegard/git/gcc/gcc/cp/parser.c:21778
0xf9283b cp_parser_ctor_initializer_opt_and_function_body
/home/vegard/git/gcc/gcc/cp/parser.c:21813
$ xgcc --version
xgcc (GCC) 8.0.1 20180306 (experimental)
Built from git 11a93d7a09b871b3b9a2eb108eb91ad83d94e070 (r258271).
5.5.0 says:
<source>: In function 'void f()':
<source>:12:13: error: 'decltype' was not declared in this scope
decltype(b) a;
^
<source>:14:12: error: aggregate 'f()::e f' has incomplete type and cannot be
defined
struct e f;
^
Compiler returned: 1
Test case was minimised by C-Reduce.
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