Re: [PATCH] ivopts costs debug

2015-08-19 Thread Segher Boessenkool
On Wed, Aug 19, 2015 at 10:45:42AM +0800, Bin.Cheng wrote: > I ran into back-end address cost issue before and this should be > useful in such cases. Though there are a lot of dumps, it would be > better to classify it into existing dump option (TDF_DETAILS?) and > discard the use of macro. But T

Re: [PATCH] ivopts costs debug

2015-08-18 Thread Bin.Cheng
On Wed, Aug 19, 2015 at 5:19 AM, Segher Boessenkool wrote: > Hi, > > I've used this patch in the past for another port, and now again for > rs6000, and I think it is generally useful. It prints very verbose > information to the dump file about how ivopts comes up with its costs > for various form