https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117197
Bug ID: 117197
Summary: ICE: 'verify_gimple' failed with vector_size
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: ---
*******************************************************************************
OS and Platform:
$ uname -a:
Linux 65dac7c84719 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC
2023 x86_64 x86_64 x86_64 GNU/Linux
*******************************************************************************
gcc version:
Using built-in specs.
COLLECT_GCC=/home/software/gcc-trunk-3aa004f/bin/gcc
COLLECT_LTO_WRAPPER=/home/software/gcc-trunk-3aa004f/libexec/gcc/x86_64-pc-linux-gnu/15.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc/configure --disable-multilib --disable-bootstrap
--enable-languages=c,c++ --prefix=/home/software/gcc-trunk-3aa004f
--enable-coverage
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 15.0.0 20240630 (experimental) (GCC)
*******************************************************************************
Program:
$ cat mutant.c
struct b {
__attribute__((vector_size(4))) int a;
};
int c;
void d() { struct b e = {c, .a = 2}; }
*******************************************************************************
Command Lines:
$ gcc mutant.c
mutant.c: In function 'd':
mutant.c:5:6: error: incorrect number of vector 'constructor' elements
5 | void d() { struct b e = {c, .a = 2}; }
| ^
{c.0_1, 2}
_2 = {c.0_1, 2};
mutant.c:5:6: internal compiler error: 'verify_gimple' failed
0x5071bcf diagnostic_context::report_diagnostic(diagnostic_info*)
???:0
0x50724a1 diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, int, char const*, __va_list_tag (*) [1],
diagnostic_t)
???:0
0x50924c7 internal_error(char const*, ...)
???:0
0x1f8b6ad verify_gimple_in_seq(gimple*, bool)
???:0
0x17310df gimplify_body(tree_node*, bool)
???:0
0x17319cc gimplify_function_tree(tree_node*)
???:0
0x124b024 cgraph_node::analyze()
???:0
0x125521b symbol_table::finalize_compilation_unit()
???:0
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.
It can be compiled normally without vector_size attribute.
Clang does not encounter crash.
Also ICE on trunk.
Compiler Explorer: https://godbolt.org/z/WsrdrqWhY
