Re: ARM SVE issues with non "standard" vector lengths

2020-04-25 Thread Richard Henderson
On 4/23/20 9:24 AM, Laurent Desnogues wrote: > Looking at the code I think sve_punpk_p is affected too. Got it. Same issue as zip1. r~

Re: ARM SVE issues with non "standard" vector lengths

2020-04-25 Thread Richard Henderson
On 4/25/20 11:49 AM, Richard Henderson wrote: > On 4/23/20 6:59 AM, Laurent Desnogues wrote: >> 2. sve_zip_p >> >> This generates extraneous data in the higher part of the result. >> >> I hit this when I got a wrong result on an instruction that ends up >> using sve_cntp which counts all bits set i

Re: ARM SVE issues with non "standard" vector lengths

2020-04-25 Thread Richard Henderson
On 4/23/20 6:59 AM, Laurent Desnogues wrote: > 2. sve_zip_p > > This generates extraneous data in the higher part of the result. > > I hit this when I got a wrong result on an instruction that ends up > using sve_cntp which counts all bits set in each 64-bit chunk. There > might be some other ins

Re: ARM SVE issues with non "standard" vector lengths

2020-04-23 Thread Laurent Desnogues
On Thu, Apr 23, 2020 at 5:19 PM Richard Henderson wrote: > > On 4/23/20 6:59 AM, Laurent Desnogues wrote: > > 2. sve_zip_p > > > > This generates extraneous data in the higher part of the result. > > > > I hit this when I got a wrong result on an instruction that ends up > > using sve_cntp which c