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This adds the neon instructions for lane-wise rounding without actually converting the lanes to integers.
Neon intrinsic code generator
A small tool that allows to quickly generate intrinsics for the NEON architecture.
The specification for the intrinsics can be found in neon.spec.
To run and re-generate the code run the following from the root of the stdarch crate.
OUT_DIR=`pwd`/crates/core_arch cargo run -p stdarch-gen -- crates/stdarch-gen/neon.spec