Re: [PATCH] Add target hook to compute register pressure classes

2016-11-04 Thread Vladimir N Makarov
On 11/04/2016 12:18 PM, Pat Haugen wrote: While working to get -fsched-pressure profitable on PowerPC, one of the things I noticed causing problems was the selection of pressure classes. Understanding that getting the computation of pressure classes correct for all targets in the machine ind

[PATCH] Add target hook to compute register pressure classes

2016-11-04 Thread Pat Haugen
While working to get -fsched-pressure profitable on PowerPC, one of the things I noticed causing problems was the selection of pressure classes. Understanding that getting the computation of pressure classes correct for all targets in the machine independent code is going to be extremely hard (o