[Bug tree-optimization/112661] [14] RISC-V ICE: in duplicate_and_interleave, at tree-vect-slp.cc:8025 with maxval_char_3.f90 vlen256b since r14-5101-g60034ecf25597b

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112661

--- Comment #13 from Richard Sandiford <rsandifo at gcc dot gnu.org> ---
In vect_create_constant_vectors, I think the uniform_elt needs
to come first, and needs to be used irrespective of whether the
number of elements is constant.  The general tree_vector_builder
has a more general pattern than 1 duplicated element.