Suspect `cc-rs` added extra instructions to `.wasm`

[StackOverflowExcept1on]

cc-rs/src/target/generated.rs

Line 255 in a928923

("wasm32v1-none", "wasm32-unknown-unknown"),

wasm32v1-none target should probably use -C target-cpu=mvp when compiling
https://doc.rust-lang.org/beta/rustc/platform-support/wasm32v1-none.html#enabled-webassembly-features

ref rust-lang/rust#140174

[StackOverflowExcept1on]

https://releases.llvm.org/20.1.0/docs/ReleaseNotes.html#changes-to-the-webassembly-backend
clang-20 enabled new WASM features, so need to pass -mcpu=mvp for wasm32v1-none target
this explains why I have additional instructions in my build that are not supported, but only when compiling with clang-20

[NobodyXu]

Thanks, I will accept a PR for fixing it