On Mon, Apr 20, 2020 at 11:23 AM Jeroen Vreeken <[email protected]> wrote:
> On Aarch64 you do not need to check for NEON since it is a mandatory > part. (The 'asimd' flag is always present) > Because of that a number of defines in gcc are no longer present. > I had the same issue with the LPCNet code on an 64bit raspberry pi. > You need to compile with '-mtune=native -mcpu=native' to enable the > correct optimizations. > And in places where the code checks for __ARM_NEON__ you need to modify it > to also allow __ARM_NEON (with trailing underscores) > Thanks for the tip! I'm working on updating the CMake config to do arch based decisions if the system based ones can't be relied on. Thanks, Richard
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