Re: Loop reversal

2017-07-17 Thread Segher Boessenkool
On Mon, Jul 17, 2017 at 11:56:50AM +0200, Richard Biener wrote: > On Thu, Jul 13, 2017 at 2:18 AM, Kugan Vivekanandarajah > wrote: > > I am looking into reversing loop to increased efficiency. There is > > already a PR22041 for this and an old patch > > https://gcc.gnu.org/ml/gcc-patches/2006-01/m

Re: Loop reversal

2017-07-17 Thread Richard Biener
On Thu, Jul 13, 2017 at 2:18 AM, Kugan Vivekanandarajah wrote: > I am looking into reversing loop to increased efficiency. There is > already a PR22041 for this and an old patch > https://gcc.gnu.org/ml/gcc-patches/2006-01/msg01851.html by Zdenek > which never made it to mainline. > > For constant