On June 17, 2019 11:59:30 AM GMT+02:00, Segher Boessenkool <seg...@kernel.crashing.org> wrote: >On Mon, Jun 17, 2019 at 10:51:49AM +0200, Richard Biener wrote: >> On Mon, 17 Jun 2019, Kewen.Lin wrote: >> >> > Hi Segher and Bill, >> > >> > Thanks a lot for your review comments! I've updated the patch >accordingly. >> > >> > The updated one attached. >> >> OK. I suppose all low-overhead loop instructions use a decrement to >zero >> style iterator? > >The documentation says decrement to 0, decrement to -1, and decrement >to >any negative are all supported. But all are decrement, yes.
Hmm, so I wonder if we should tell IVOPTS the kind because the IV generated has to match RTL doloops expectations? Thus return an enum value from the hook? Richard. > >Segher
