Getting build errors when compiling for ios in xcode

[rubiktubik]

Hi, @EricLBuehler first, thank you for the amazing library and your work.

I want to use mistral-rs on ios with flutter and https://cjycode.com/flutter_rust_bridge/ but getting the following build message:

Error (Xcode): instruction requires: fullfp16
Error (Xcode): could not compile `gemm-f16` (lib) due to 11 previous errors

I not sure if it is related to mistral-rs. But fp16 is mostly need for machine-learning i think.

I added mistral-rs like this to my cargo.toml:

mistralrs = { git = "https://github.com/EricLBuehler/mistral.rs.git", branch = "master", features = [
    "metal",
] }

I have also tried to use rust nightly with rustflags in the config.toml with (which is mentioned here sarah-quinones/gemm#31)

[build]
rustflags = [
    "-Ctarget-feature=+fp16,+fhm"
]

But still getting the same error

[EricLBuehler]

Hi @rubiktubik, thanks for the issue!

It appears that this issue is related to the upstream gemm crate. Could you please provide the full error/compilation log in pastebin or an equivalent? I haven't run into this error, it seems the issue you linked gemm contains the error.

[rubiktubik]

I seems this error is also related to using a debug build with xcode.
A release build works without problems.
I will try to figure out more.