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
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