bors 2b5e239c6b Auto merge of #144225 - purplesyringa:unwinding-intrinsics, r=nikic
Don't special-case llvm.* as nounwind

Certain LLVM intrinsics, such as `llvm.wasm.throw`, can unwind. Marking them as nounwind causes us to skip cleanup of locals and optimize out `catch_unwind` under inlining or when `llvm.wasm.throw` is used directly by user code.

The motivation for forcibly marking llvm.* as nounwind is no longer present: most intrinsics are linked as `extern "C"` or other non-unwinding ABIs, so we won't codegen `invoke` for them anyway.

Closes rust-lang/rust#132416.

`@rustbot` label +T-compiler +A-panic
2025-07-27 23:05:48 +00:00
..
2025-07-22 20:22:16 +02:00

stdarch - Rust's standard library SIMD components

Actions Status

This repository contains the core_arch crate, which implements core::arch - Rust's core library architecture-specific intrinsics.

The std::simd component now lives in the packed_simd_2 crate.

Synchronizing josh subtree with rustc

This repository is linked to rust-lang/rust as a josh subtree. You can use the rustc-josh-sync tool to perform synchronization.

You can find a guide on how to perform the synchronization here.