Re: [PATCH PR83695]Fix ICE by resetting cached scev info after interchange.

2018-01-11 Thread Richard Biener
On Thu, Jan 11, 2018 at 1:49 PM, Bin Cheng wrote: > Hi, > As explained in comment of PR83695, outdated cached scev info could be > referred > by later interchange of outer loops in nest. This simple patch fixes ICE by > resetting cached scev info after interchange. It's expensive resetting all

[PATCH PR83695]Fix ICE by resetting cached scev info after interchange.

2018-01-11 Thread Bin Cheng
Hi, As explained in comment of PR83695, outdated cached scev info could be referred by later interchange of outer loops in nest. This simple patch fixes ICE by resetting cached scev info after interchange. It's expensive resetting all scev information but might not be a problem here given we only