https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117050
Bug ID: 117050
Summary: ice in vect_build_slp_tree_2
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
This reduced C code:
typedef struct {
char *data
} song_sample_t;
typedef struct {
int right_ramp;
int left_ramp
} song_voice_t;
song_sample_t *csf_stop_sample_smp, *csf_stop_sample_v_3;
song_voice_t *csf_stop_sample_v;
void csf_stop_sample() {
for (int i; i; i++, csf_stop_sample_v++)
if (csf_stop_sample_v_3 || csf_stop_sample_smp->data)
csf_stop_sample_v->left_ramp = csf_stop_sample_v->right_ramp = 0;
}
does this
foundBugs $ /home/dcb40b/gcc/results.20241008.asan.ubsan/bin/gcc -c -w -O2
bug1052.c
foundBugs $ /home/dcb40b/gcc/results.20241009.asan.ubsan/bin/gcc -c -w -O2
-march=znver3 bug1052.c
during GIMPLE pass: vect
player/csndfile.c: In function ‘csf_stop_sample’:
player/csndfile.c:1256:6: internal compiler error: Segmentation fault
0x22d9add internal_error(char const*, ...)
/home/dcb40b/gcc/working/gcc/../../trunk/gcc/diagnostic-global-context.cc:517
0xf13b59 crash_signal(int)
/home/dcb40b/gcc/working/gcc/../../trunk/gcc/toplev.cc:321
0x12386e5 vect_build_slp_tree_2(vec_info*, _slp_tree*, vec<_stmt_vec_info*,
va_heap, vl_ptr>, unsigned int, poly_int<1u, unsigned long>*, bool*, unsigned
int*, unsigned int*, hash_map<vec<_stmt_vec_info*, va_heap, vl_ptr>,
_slp_tree*, simple_hashmap_traits<bst_traits, _slp_tree*> >*)
with recent gcc.
Git hashes are g:5f0a381801b754db and g:4f97411c0d45dc3d.
