Re: Implement loop guard heuristics

2016-06-27 Thread Jan Hubicka
> Jan Hubicka writes: > > Hi, > > this patch implements loop guard heuristics predicting that if one loop is > > nested in another and controlled by a conditional that conditional is likely > > false. This helps to get more realistic predictionsin larger loop nests. > > Just curious: what's the b

Re: Implement loop guard heuristics

2016-06-27 Thread Richard Sandiford
Jan Hubicka writes: > Hi, > this patch implements loop guard heuristics predicting that if one loop is > nested in another and controlled by a conditional that conditional is likely > false. This helps to get more realistic predictionsin larger loop nests. Just curious: what's the basis for the c