https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102759
Bug ID: 102759
Summary: ICE: Segmentation fault,
contains_struct_check(tree_node*,
tree_node_structure_enum, char const*, int, char
const*), maybe_check_access_sizes
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: cnsun at uwaterloo dot ca
Target Milestone: ---
This might be a duplicate to PR 100784
$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/scratch/software/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /tmp/tmp.gzh6IUhxke-gcc-builder/gcc/configure
--enable-languages=c,c++,lto --enable-checking-yes --enable-multiarch
--prefix=/scratch/software/gcc-trunk --disable-bootstrap
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 12.0.0 20211014 (experimental) [master -gee9fa8a57] (GCC)
$ cat mutant.c
a4() { void fa4(int[]); }
void fa4();
call_fa4() { fa4(a4); }
$ gcc-trunk -w mutant.c
during GIMPLE pass: waccess
mutant.c: In function ‘call_fa4’:
mutant.c:3:1: internal compiler error: Segmentation fault
3 | call_fa4() { fa4(a4); }
| ^~~~~~~~
0xf8c8d3 crash_signal
/tmp/tmp.gzh6IUhxke-gcc-builder/gcc/gcc/toplev.c:326
0x72b653 contains_struct_check(tree_node*, tree_node_structure_enum, char
const*, int, char const*)
/tmp/tmp.gzh6IUhxke-gcc-builder/gcc/gcc/tree.h:3546
0x72b653 maybe_check_access_sizes
/tmp/tmp.gzh6IUhxke-gcc-builder/gcc/gcc/gimple-ssa-warn-access.cc:2880
0xc822f4 check_call
/tmp/tmp.gzh6IUhxke-gcc-builder/gcc/gcc/gimple-ssa-warn-access.cc:3151
0xc822f4 check
/tmp/tmp.gzh6IUhxke-gcc-builder/gcc/gcc/gimple-ssa-warn-access.cc:3310
0xc822f4 check
/tmp/tmp.gzh6IUhxke-gcc-builder/gcc/gcc/gimple-ssa-warn-access.cc:3326
0xc822f4 execute
/tmp/tmp.gzh6IUhxke-gcc-builder/gcc/gcc/gimple-ssa-warn-access.cc:3340
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
