[Bug tree-optimization/128225] vectorizer: ICE in build_truth_vector_type_for_mode on omp declare simd inbranch call with -m32 -mavx2

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128225

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
So the issue is that bestn_inbranch->simdclone->args[i].vector_type is
a BLKmode vector type.  I'm testing a patch.