[Bug tree-optimization/113281] Wrong code due to vectorization of shift reduction and missing promotions since r14-3027

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113281

--- Comment #24 from Richard Sandiford <rsandifo at gcc dot gnu.org> ---
Fixed on trunk so far, but it's latent on branches.  I'll see what
the trunk fallout is like before asking about backports.