7b1af5b6f6
Bumps [cranelift](https://github.com/CraneStation/cranelift) from `606eee5` to `af045c1`.
- [Release notes](https://github.com/CraneStation/cranelift/releases)
- [Commits](606eee5a6c...af045c1c17)
Signed-off-by: dependabot[bot] <support@dependabot.com>
Work in progress cranelift codegen backend for rust
⚠⚠⚠ This doesn't do much useful yet ⚠⚠⚠
Building
$ git clone https://github.com/bjorn3/rustc_codegen_cranelift.git
$ cd rustc_codegen_cranelift
$ rustup override set nightly # This uses unstable api's which will never be stabilized
$ cargo install xargo # Used for building the sysroot
$ cargo install hyperfine # Used for benchmarking in build.sh
$ cargo build
Usage
$ rustc -Zcodegen-backend=$(pwd)/target/debug/librustc_codegen_cranelift.so my_crate.rs
Build sysroot and test
$ rustup component add rust-src # Make sure the sysroot source is availablr
$ ./prepare_libcore.sh # Patch the sysroot source for some not yet supported things
$ ./build.sh
Not yet supported
- Good non-rust abi support (non scalars are not yet supported for the "C" abi)
- Checked binops (some missing instructions in cranelift)
- Inline assembly (no cranelift support)
- Varargs (no cranelift support)
- libstd (needs varargs and some other stuff) (tracked here)
- u128 and i128 (no cranelift support)
- SIMD (huge amount of work to get all intrinsics implemented, so may never be supported)