https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98535
--- Comment #1 from ktkachov at gcc dot gnu.org ---
This backtrace started with my commit 64432b680eab0bddbe9a4ad4798457cf6a14ad60
but before this it still ICEd with:
foo.c: In function 'i':
foo.c:12:1: error: type mismatch in 'vec_perm_expr'
12 | i() {
| ^
vector([4,4]) unsigned short
vector([4,4]) unsigned short
unsigned long
vector([4,4]) ssizetype
_112 = VEC_PERM_EXPR <_111, niters.19_72, { 0, POLY_INT_CST [4, 4], 1,
POLY_INT_CST [5, 4], 2, POLY_INT_CST [6, 4], ... }>;
during GIMPLE pass: vect
