On 06/26/2018 03:44 AM, Peter Maydell wrote: > A comment to the effect that the SVE fp-to-fp conversion > routines always use IEEE format halfprec (ie ignore FPCR.AHP) > would be helpful.
Ok. > Are you sure we have the FPCR.FZ16 handling right here? That > is, do we need the same "use the not-fp16 fpstatus pointer, > and temporarily clear the flush flag for the fp16 end of > the conversion" behaviour that we have in vfp_fcvt_f16_to_f32 > and friends ? The pseudocode FPConvertSVE() calls FPConvert(), > which is the "ignore FZ16" codepath I think. The test case would > be (eg) a conversion where the input f16 is denormal and > FPCR.FZ == 1: this should not do the flush-input-to-zero, right? Yes, I read it the same way. I guess both my and Alex's RISU test cases didn't exercise this? r~
