mirror of https://github.com/rust-lang/rust.git synced 2024-12-03 04:04:06 +00:00

Empowering everyone to build reliable and efficient software.

Go to file

dependabot[bot] 8b3b6f0831 Merge pull request #486 from bjorn3/dependabot/cargo/cranelift-538a066		2019-04-19 17:31:39 +00:00
build_sysroot	Pass --sysroot in config.sh to prevent passing it	2019-04-10 16:53:23 +02:00
example	Fix and optimize init intrinsic	2019-04-10 17:25:57 +02:00
patches	Rustup to rustc 1.35.0-nightly (`aa99abeb2` 2019-04-14)	2019-04-15 16:34:16 +02:00
src	Rustup to rustc 1.36.0-nightly (`3c3d3c177` 2019-04-17)	2019-04-18 19:06:59 +02:00
.gitignore	Add rust to .gitignore	2019-02-26 11:17:47 +01:00
.travis.yml	Stop using xargo for building the sysroot	2018-12-15 16:18:03 +01:00
abc.cpp	Implement line debuginfo	2019-01-26 11:59:57 +01:00
Cargo.lock	Bump cranelift from `8456797` to `538a066`	2019-04-19 16:45:50 +00:00
Cargo.toml	Update cranelift, faerie and target-lexicon	2019-04-05 19:42:23 +02:00
clean_all.sh	Stop using xargo for building the sysroot	2018-12-15 16:18:03 +01:00
config.sh	Pass --sysroot in config.sh to prevent passing it	2019-04-10 16:53:23 +02:00
copy.clif	Fix some bugs	2018-08-08 10:26:25 +02:00
flamegraph.sh	Stop using xargo for building the sysroot	2018-12-15 16:18:03 +01:00
LICENSE-APACHE	Create LICENSE-APACHE	2018-06-22 19:33:35 +02:00
LICENSE-MIT	Add LICENSE-MIT	2018-06-22 19:34:27 +02:00
prepare.sh	Stop using xargo for building the sysroot	2018-12-15 16:18:03 +01:00
Readme.md	Some changes to README.md	2019-04-14 10:49:07 +02:00
rust-toolchain	Initial commit	2018-06-17 18:05:11 +02:00
test.sh	Pass --sysroot in config.sh to prevent passing it	2019-04-10 16:53:23 +02:00

Readme.md

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
$ ./prepare.sh # download and patch sysroot src and install hyperfine for benchmarking
$ ./test.sh

Usage

$cg_clif_dir is the directory you cloned this repo into in the following instruction.

Rustc

$ rustc -Cpanic=abort -Zcodegen-backend=$cg_clif_dir/target/debug/librustc_codegen_cranelift.so --sysroot $cg_clif_dir/build_sysroot/sysroot my_crate.rs

Cargo

$ RUSTFLAGS="-Cpanic=abort -Zcodegen-backend=$cg_clif_dir/target/debug/librustc_codegen_cranelift.dylib --sysroot $cg_clif_dir/build_sysroot/sysroot" cargo run

Not yet supported

Good non-rust abi support (scalar pair and vector are passed by-ref)
Checked binops (some missing instructions in cranelift)
Inline assembly (no cranelift support)
u128 and i128 (no cranelift support)
SIMD (tracked here)

Troubleshooting

Can't compile

Try updating your nightly compiler. You can try to use an nightly a day or two older if updating rustc doesn't fix it. If you still can't compile it, please fill an issue.