https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113659
Bug ID: 113659
Summary: [14 Regression] ICE Segmentation fault since
r14-8355-g02e683894942da
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: mjires at suse dot cz
CC: rguenther at suse dot de
Target Milestone: ---
Compiling reduced testcase g++.dg/torture/predcom-1.C results in ICE since
r14-8355-g02e683894942da. Reintroduced PR113442.
$ cat predcom-1.C
struct Foo {
int *ptr;
};
bool Baz(Foo first) {
while (first.ptr)
if (*first.ptr++)
return false;
}
$ g++ predcom-1.C -O3 -fno-tree-sra -mavx512bf16
predcom-1.C: In function ‘bool Baz(Foo)’:
predcom-1.C:8:1: warning: control reaches end of non-void function
[-Wreturn-type]
8 | }
| ^
during GIMPLE pass: vect
predcom-1.C:4:6: internal compiler error: Segmentation fault
4 | bool Baz(Foo first) {
| ^~~
0x1b06530 crash_signal
/home/mjires/git/GCC/master/gcc/toplev.cc:317
0x13c5e6a gimple_phi_result(gphi const*)
/home/mjires/git/GCC/master/gcc/gimple.h:4608
0x1e6a0a4 slpeel_tree_duplicate_loop_to_edge_cfg(loop*, edge_def*, loop*,
edge_def*, edge_def*, edge_def**, bool, vec<basic_block_def*, va_heap,
vl_ptr>*)
/home/mjires/git/GCC/master/gcc/tree-vect-loop-manip.cc:1713
0x1e6f49e vect_do_peeling(_loop_vec_info*, tree_node*, tree_node*, tree_node**,
tree_node**, tree_node**, int, bool, bool, tree_node**)
/home/mjires/git/GCC/master/gcc/tree-vect-loop-manip.cc:3395
0x1e597a8 vect_transform_loop(_loop_vec_info*, gimple*)
/home/mjires/git/GCC/master/gcc/tree-vect-loop.cc:11914
0x1eb23de vect_transform_loops
/home/mjires/git/GCC/master/gcc/tree-vectorizer.cc:1006
0x1eb2b3e try_vectorize_loop_1
/home/mjires/git/GCC/master/gcc/tree-vectorizer.cc:1152
0x1eb2c77 try_vectorize_loop
/home/mjires/git/GCC/master/gcc/tree-vectorizer.cc:1182
0x1eb2f3e execute
/home/mjires/git/GCC/master/gcc/tree-vectorizer.cc:1298
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.
$ g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/home/mjires/built/master/libexec/gcc/x86_64-pc-linux-gnu/14.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /home/mjires/git/GCC/master/configure
--prefix=/home/mjires/built/master --disable-bootstrap
--enable-languages=c,c++,fortran,lto --disable-multilib --disable-libsanitizer
--enable-checking : (reconfigured) /home/mjires/git/GCC/master/configure
--prefix=/home/mjires/built/master --disable-bootstrap
--enable-languages=c,c++,fortran,lto --disable-multilib --disable-libsanitizer
--enable-checking
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240129 (experimental) (GCC)
