https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117145
Bug ID: 117145
Summary: ICE: in make_ssa_name_fn, at tree-ssanames.cc:355 at
-O1 and above with vector_size
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
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
int a;
void b();
int e(int *c, struct d{__attribute__((vector_size(4))) char an[*c]} *) {
sizeof(struct d);
}
void f() {
if (e(&a, 0))
b();
}
*******************************************************************************
Command Lines:
$ gcc -O1 mutant.c
mutant.c:3:67: warning: no semicolon at end of struct or union
3 | int e(int *c, struct d{__attribute__((vector_size(4))) char an[*c]} *)
{
| ^
mutant.c:3:22: warning: 'struct d' declared inside parameter list will not be
visible outside of this definition or declaration
3 | int e(int *c, struct d{__attribute__((vector_size(4))) char an[*c]} *)
{
| ^
during IPA pass: inline
In function 'e':
cc1: internal compiler error: in make_ssa_name_fn, at tree-ssanames.cc:355
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
0x50729e4 fancy_abort(char const*, int, char const*)
???:0
0x2499c77 make_ssa_name_fn(function*, tree_node*, gimple*, unsigned int)
???:0
0x11a4332 make_ssa_name(tree_node*, gimple*)
???:0
0x202beeb copy_tree_body_r(tree_node**, int*, void*)
???:0
0x2697510 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
???:0
0x2699036 walk_tree_1(tree_node**, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*,
tree_node* (*)(tree_node**, int*, tree_node* (*)(tree_node**, int*, void*),
void*, hash_set<tree_node*, false, default_hash_traits<tree_node*> >*))
???:0
0x2028ab8 remap_type(tree_node*, copy_body_data*)
???:0
0x20244c2 remap_decl(tree_node*, copy_body_data*)
???:0
0x2028ab8 remap_type(tree_node*, copy_body_data*)
???:0
0x2028ab8 remap_type(tree_node*, copy_body_data*)
???:0
0x20244c2 remap_decl(tree_node*, copy_body_data*)
???:0
0x204a890 tree_function_versioning(tree_node*, tree_node*,
vec<ipa_replace_map*, va_gc, vl_embed>*, ipa_param_adjustments*, bool,
bitmap_head*, basic_block_def*)
???:0
0x187c46c inline_transform(cgraph_node*)
???:0
0x1c23e63 execute_all_ipa_transforms(bool)
???:0
0x12524ae cgraph_node::expand()
???:0
0x12549cc symbol_table::compile()
???:0
0x1255373 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.
Also ICE on trunk.
Compiler Explorer: https://godbolt.org/z/T6bP3vzae
