Re:“csinc”, the AArch64 instruction you didn’t know you wanted
by jeffreygoesto on Wednesday June 07, 2023 @05:45AM
(#36224805)
> However, developers often encounter problems with Arm NEON instructions being expensive to move to scalar code and back.
I remember talking to an ARM engineer easily 10 years ago and he told us in that nice british accent: "You know, NEON is like 'back in the yard'" :-D. This has changed a lot, but not enough from what you wrote... Bit sad that these SIMD optimizations are still hand written...
I remember talking to an ARM engineer easily 10 years ago and he told us in that nice british accent: "You know, NEON is like 'back in the yard'" :-D. This has changed a lot, but not enough from what you wrote... Bit sad that these SIMD optimizations are still hand written...