| build_sysroot | ||
| example | ||
| patches | ||
| src | ||
| .gitignore | ||
| .travis.yml | ||
| abc.cpp | ||
| Cargo.lock | ||
| cargo.sh | ||
| Cargo.toml | ||
| clean_all.sh | ||
| config.sh | ||
| copy.clif | ||
| flamegraph.sh | ||
| LICENSE-APACHE | ||
| LICENSE-MIT | ||
| prepare.sh | ||
| Readme.md | ||
| rust-toolchain | ||
| rustup.sh | ||
| test.sh | ||
WIP Cranelift codegen backend for rust
⚠⚠⚠ Certain kinds of FFI don't work yet. ⚠⚠⚠
Building
$ git clone https://github.com/bjorn3/rustc_codegen_cranelift.git
$ cd rustc_codegen_cranelift
$ ./prepare.sh # download and patch sysroot src and install hyperfine for benchmarking
$ ./test.sh --release
Usage
$cg_clif_dir is the directory you cloned this repo into in the following instruction.
Cargo
$ CHANNEL="release" $cg_clif_dir/cargo.sh run
If you compiled cg_clif in debug mode you should use CHANNEL="debug" instead or omit CHANNEL="release" completely.
Rustc
$ rustc -Cpanic=abort -Zcodegen-backend=$cg_clif_dir/target/release/librustc_codegen_cranelift.so --sysroot $cg_clif_dir/build_sysroot/sysroot my_crate.rs
Env vars
- CG_CLIF_JIT
- Enable JIT mode to immediately run a program instead of writing an executable file.
- CG_CLIF_JIT_ARGS
- When JIT mode is enable pass these arguments to the program.
- CG_CLIF_INCR_CACHE_DISABLE
- Don't cache object files in the incremental cache. Useful during development of cg_clif to make it possible to use incremental mode for all analyses performed by rustc without caching object files when their content should have been changed by a change to cg_clif.
- CG_CLIF_DISPLAY_CG_TIME
- Display the time it took to perform codegen for a crate
Not yet supported
- Good non-rust abi support (several problems)
- Checked binops (some missing instructions in cranelift)
- Inline assembly (no cranelift support, not coming soon)
- SIMD (tracked here, some basic things work)