On Tue, Sep 01, 2020 at 11:50:32AM +0200, Richard Biener wrote:
> While IMHO it makes very much sense to map V1{S,D,T}F types
> to {S,D,T}Fmode if there's no special vector mode for it the
> question is whether we can make this "change" for the sake
> of the ABIs? The alternative is to make vector lowering
> adjust this, inserting V_C_Es for example.
I'd fear about the ABI consequences, as well as anything in the FEs and
middle-end that cares about vector modes, so I think lowering this in
tree-vect-generic.c using V_C_Es looks much safer to me.
Jakub
