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* Cranelift: use regalloc2 constraints on caller side of ABI code. This PR updates the shared ABI code and backends to use register-operand constraints rather than explicit pinned-vreg moves for register arguments and return values. The s390x backend was not updated, because it has its own implementation of ABI code. Ideally we could converge back to the code shared by x64 and aarch64 (which didn't exist when s390x ported calls to ISLE, so the current situation is underestandable, to be clear!). I'll leave this for future work. This PR exposed several places where regalloc2 needed to be a bit more flexible with constraints; it requires regalloc2#74 to be merged and pulled in. * Update to regalloc2 0.3.3. In addition to version bump, this required removing two asserts as `SpillSlot`s no longer carry their class (so we can't assert that they have the correct class). * Review comments. * Filetest updates. * Add cargo-vet audit for regalloc2 0.3.2 -> 0.3.3 upgrade. * Update to regalloc2 0.4.0.
This directory contains the state for cargo-vet, a tool to help projects ensure that third-party Rust dependencies have been audited by a trusted entity. More about the tool can be found here: https://mozilla.github.io/cargo-vet/ The audits.toml file may be imported by other projects, and therefore should be handled with care. Ask for help if you're not sure.