https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97480
Bug ID: 97480
Summary: ice in vect_get_and_check_slp_defs, at
tree-vect-slp.c:538
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
For this C code:
typedef struct {
int a;
int b;
} c;
int d;
c e;
unsigned int f;
void g() {
e.a = f != 0;
e.b = d != 0;
}
compiled with flag -O3 on recent gcc trunk, does this:
during GIMPLE pass: slp
bug656.c: In function ‘g’:
bug656.c:8:6: internal compiler error: in vect_get_and_check_slp_defs, at
tree-vect-slp.c:538
8 | void g() {
| ^
0xf56852 vect_get_and_check_slp_defs(vec_info*, unsigned char,
vec<_stmt_vec_inf
o*, va_heap, vl_ptr>, unsigned int, vec<_slp_oprnd_info*, va_heap, vl_ptr>*)
../../trunk.git/gcc/tree-vect-slp.c:536
The bug first seems to occur sometime between 20201016 and 20201017.
