Re: [PATCH 3/4 v2] ivopts: Consider cost_step on different forms during unrolling

2020-08-21 Thread Bin.Cheng via Gcc-patches
On Tue, Aug 18, 2020 at 5:03 PM Kewen.Lin wrote: > > Hi Bin, > > > I see, it's similar to the auto-increment case where cost should be > > recorded only once. So this is okay given 1) fine predicting > > rtl-unroll is likely impossible here; 2) the patch has very limited > > impact. > > > Really

[PATCH 3/4 v2] ivopts: Consider cost_step on different forms during unrolling

2020-08-18 Thread Kewen.Lin via Gcc-patches
Hi Bin, > I see, it's similar to the auto-increment case where cost should be > recorded only once. So this is okay given 1) fine predicting > rtl-unroll is likely impossible here; 2) the patch has very limited > impact. > Really appreciate your time and patience! I extended the previous versio