rust/compiler/rustc_codegen_cranelift
Gary Guo e3f2edc75b Rename Abort terminator to Terminate
Unify terminology used in unwind action and terminator, and reflect
the fact that a nounwind panic is triggered instead of an immediate
abort is triggered for this terminator.
2023-04-06 09:34:16 +01:00
..
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build_system Merge commit 'dec0daa8f6d0a0e1c702f169abb6bf3eee198c67' into sync_cg_clif-2023-03-15 2023-03-15 14:41:48 +00:00
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src Rename Abort terminator to Terminate 2023-04-06 09:34:16 +01:00
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.gitattributes
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Cargo.lock Update indexmap and rayon crates 2023-03-25 02:12:13 +01:00
Cargo.toml Update indexmap and rayon crates 2023-03-25 02:12:13 +01:00
clean_all.sh Merge commit '598f0909568a51de8a2d1148f55a644fd8dffad0' into sync_cg_clif-2023-01-24 2023-01-24 18:56:42 +01:00
config.txt Merge commit '7d53619064ab7045c383644cb445052d2a3d46db' into sync_cg_clif-2023-02-09 2023-02-09 12:38:16 +01:00
LICENSE-APACHE
LICENSE-MIT
Readme.md Merge commit '598f0909568a51de8a2d1148f55a644fd8dffad0' into sync_cg_clif-2023-01-24 2023-01-24 18:56:42 +01:00
rust-toolchain Merge commit 'dec0daa8f6d0a0e1c702f169abb6bf3eee198c67' into sync_cg_clif-2023-03-15 2023-03-15 14:41:48 +00:00
rustfmt.toml Merge commit '2bb3996244cf1b89878da9e39841e9f6bf061602' into sync_cg_clif-2022-12-14 2022-12-14 19:30:46 +01:00
test.sh Merge commit '2bb3996244cf1b89878da9e39841e9f6bf061602' into sync_cg_clif-2022-12-14 2022-12-14 19:30:46 +01:00
y.rs Merge commit '598f0909568a51de8a2d1148f55a644fd8dffad0' into sync_cg_clif-2023-01-24 2023-01-24 18:56:42 +01:00

Cranelift codegen backend for rust

The goal of this project is to create an alternative codegen backend for the rust compiler based on Cranelift. This has the potential to improve compilation times in debug mode. If your project doesn't use any of the things listed under "Not yet supported", it should work fine. If not please open an issue.

Building and testing

$ git clone https://github.com/bjorn3/rustc_codegen_cranelift
$ cd rustc_codegen_cranelift
$ ./y.rs prepare
$ ./y.rs build

To run the test suite replace the last command with:

$ ./test.sh

For more docs on how to build and test see build_system/usage.txt or the help message of ./y.rs.

Alternatively you can download a pre built version from Github Actions. It is listed in the artifacts section of workflow runs. Unfortunately due to GHA restrictions you need to be logged in to access it.

Usage

rustc_codegen_cranelift can be used as a near-drop-in replacement for cargo build or cargo run for existing projects.

Assuming $cg_clif_dir is the directory you cloned this repo into and you followed the instructions (y.rs prepare and y.rs build or test.sh).

In the directory with your project (where you can do the usual cargo build), run:

$ $cg_clif_dir/dist/cargo-clif build

This will build your project with rustc_codegen_cranelift instead of the usual LLVM backend.

For additional ways to use rustc_codegen_cranelift like the JIT mode see usage.md.

Configuration

See the documentation on the BackendConfig struct in config.rs for all configuration options.

Not yet supported

  • Inline assembly (no cranelift support)
    • On UNIX there is support for invoking an external assembler for global_asm! and asm!.
  • SIMD (tracked here, std::simd fully works, std::arch is partially supported)
  • Unwinding on panics (no cranelift support, -Cpanic=abort is enabled by default)

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you shall be dual licensed as above, without any additional terms or conditions.