Re: [RFC][AARCH64] Machine reorg pass for aarch64/Falkor to handle prefetcher tag collision

Hi, On 14 February 2018 at 09:47, Kugan Vivekanandarajah wrote: > Hi Kyrill, > > On 13 February 2018 at 20:47, Kyrill Tkachov > wrote: >> Hi Kugan, >> >> On 12/02/18 23:58, Kugan Vivekanandarajah wrote: >>> >>> Implements a machine reorg pass for aarch64/Falkor to handle >>> prefetcher tag coll

Re: [RFC][AARCH64] Machine reorg pass for aarch64/Falkor to handle prefetcher tag collision

Hi Kyrill, On 13 February 2018 at 20:47, Kyrill Tkachov wrote: > Hi Kugan, > > On 12/02/18 23:58, Kugan Vivekanandarajah wrote: >> >> Implements a machine reorg pass for aarch64/Falkor to handle >> prefetcher tag collision. This is strictly not part of the loop >> unroller but for Falkor, unroll

Re: [RFC][AARCH64] Machine reorg pass for aarch64/Falkor to handle prefetcher tag collision

Hi Kugan, On 12/02/18 23:58, Kugan Vivekanandarajah wrote: Implements a machine reorg pass for aarch64/Falkor to handle prefetcher tag collision. This is strictly not part of the loop unroller but for Falkor, unrolling can make h/w prefetcher performing badly if there are too much tag collisions

[RFC][AARCH64] Machine reorg pass for aarch64/Falkor to handle prefetcher tag collision

Implements a machine reorg pass for aarch64/Falkor to handle prefetcher tag collision. This is strictly not part of the loop unroller but for Falkor, unrolling can make h/w prefetcher performing badly if there are too much tag collisions based on the discussions in https://gcc.gnu.org/ml/gcc/2017-1