https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114634
Bug ID: 114634
Summary: Crash Issue Encountered in GCC Compilation of Template
Code with Aligned Attribute
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: iamanonymous.cs at gmail dot com
Target Milestone: ---
The following code snippet triggers a crash issue:
============================================
$ cat bug.cc
template <class> class A
{ enum { e __attribute__ ((aligned(16))) }; };
============================================
The error output is:
============================================
$ gcc bug.cc
internal compiler error: Segmentation fault
2 | { enum { e __attribute__ ((aligned(16))) }; };
| ^
0xedc273 crash_signal
../../gcc/toplev.cc:319
0x957dd7 diag_attr_exclusions
../../gcc/attribs.cc:471
0x95a5f7 decl_attributes(tree_node**, tree_node*, int, tree_node*)
../../gcc/attribs.cc:867
0x7ecc0e cplus_decl_attributes(tree_node**, tree_node*, int)
../../gcc/cp/decl2.cc:1880
0x7de1d1 build_enumerator(tree_node*, tree_node*, tree_node*, tree_node*,
unsigned int)
../../gcc/cp/decl.cc:17543
0x890bdc cp_parser_enumerator_definition
../../gcc/cp/parser.cc:21903
0x890bdc cp_parser_enumerator_list
../../gcc/cp/parser.cc:21823
0x890bdc cp_parser_enum_specifier
../../gcc/cp/parser.cc:21754
0x890bdc cp_parser_type_specifier
../../gcc/cp/parser.cc:20034
0x8916f1 cp_parser_decl_specifier_seq
../../gcc/cp/parser.cc:16590
0x8bfc4f cp_parser_member_declaration
../../gcc/cp/parser.cc:27984
0x88dec1 cp_parser_member_specification_opt
../../gcc/cp/parser.cc:27840
0x88dec1 cp_parser_class_specifier
../../gcc/cp/parser.cc:26845
0x890171 cp_parser_type_specifier
../../gcc/cp/parser.cc:20064
0x8916f1 cp_parser_decl_specifier_seq
../../gcc/cp/parser.cc:16590
0x8bd774 cp_parser_single_declaration
../../gcc/cp/parser.cc:33143
0x8bdbd3 cp_parser_template_declaration_after_parameters
../../gcc/cp/parser.cc:32799
0x8be4b9 cp_parser_explicit_template_declaration
../../gcc/cp/parser.cc:33072
0x8be4b9 cp_parser_template_declaration_after_export
../../gcc/cp/parser.cc:33091
0x8c1fad cp_parser_declaration
../../gcc/cp/parser.cc:15502
============================================
The GCC version:
============================================
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/cTest/gcc/myinstall/libexec/gcc/x86_64-linux-gnu/14.0.1/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../configure -v --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu --enable-checking=no
--enable-languages=c,c++ --disable-multilib --prefix=/home/cTest/gcc/myinstall
--disable-bootstrap
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 14.0.1 20240329 (experimental) (GCC)
============================================
