https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116320
Bug ID: 116320
Summary: ICE: Segmentation fault
(perform_or_defer_access_check)
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: iamanonymous.cs at gmail dot com
Target Milestone: ---
Target: x86_64
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The compiler produces a segfault during perform_or_defer_access_check when
compiling the provided code with the specified options.
The issue can also be reproduced on Compiler Explorer.
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OS and Platform:
# uname -a
Linux ubuntu 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023
x86_64 x86_64 x86_64 GNU/Linux
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# gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/gcc-set/gcc24-7-24/gccbin/libexec/gcc/x86_64-pc-linux-gnu/15.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /home/gcc-set/gcc24-7-24/configure
--prefix=/home/gcc-set/gcc24-7-24/gccbin --enable-languages=c,c++,fortran,go
--disable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 15.0.0 20240724 (experimental) (GCC)
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Program:
# cat 1.cpp
class b{ };
template<class Type> class c : public b{
c<Type>* A();
static c<Type>* d;
};
template<class Type> c<Type>* c<Type>::d;
template<class Type> c<Type>* c<Type>::A(){
if (d->b::State()) { }
return NULL;
}
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Command Lines:
# g++ 1.cpp -O3 -funroll-loops -fno-strict-aliasing -finline-functions
-fno-omit-frame-pointer -g3 -Wall -Wextra -Werror -Wconversion -Wformat
-Wmissing-declarations -Wshadow -Wstrict-prototypes -c
cc1plus: error: command-line option ‘-Wstrict-prototypes’ is valid for C/ObjC
but not for C++ [-Werror]
1.cpp: In member function ‘c<Type>* c<Type>::A()’:
1.cpp:10:13: internal compiler error: Segmentation fault
10 | if (d->b::State()) { }
| ^
0x27f432e internal_error(char const*, ...)
/home/gcc-set/gcc24-7-24/gcc/diagnostic-global-context.cc:491
0x1412bf6 crash_signal
/home/gcc-set/gcc24-7-24/gcc/toplev.cc:319
0xd2c40e perform_or_defer_access_check(tree_node*, tree_node*, tree_node*, int,
access_failure_info*)
/home/gcc-set/gcc24-7-24/gcc/cp/semantics.cc:489
0xc5e95d cp_parser_lookup_name
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:32367
0xc9ab27 cp_parser_class_name
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:26826
0xc946f0 cp_parser_qualifying_entity
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:7422
0xc946f0 cp_parser_nested_name_specifier_opt
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:7104
0xc97969 cp_parser_id_expression
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:6447
0xc9c6a9 cp_parser_postfix_dot_deref_expression
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:8684
0xc92051 cp_parser_postfix_expression
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:8221
0xc677d1 cp_parser_binary_expression
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:10415
0xc685a5 cp_parser_assignment_expression
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:10759
0xc68ae4 cp_parser_expression
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:10926
0xca6dac cp_parser_condition
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:14062
0xcb0376 cp_parser_selection_statement
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:13694
0xc76dba cp_parser_statement
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:12743
0xc79f8f cp_parser_statement_seq_opt
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:13451
0xc7a20f cp_parser_compound_statement
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:13298
0xca2585 cp_parser_function_body
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:26175
0xca2585 cp_parser_ctor_initializer_opt_and_function_body
/home/gcc-set/gcc24-7-24/gcc/cp/parser.cc:26226
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
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Also ICE on trunk, compiler explorer:https://godbolt.org/z/9jns9j8hz
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