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bjorn3 e676998b61 Rustup to rustc 1.40.0-nightly (`084beb83e` 2019-09-27)		2019-10-03 16:24:06 +02:00
build_sysroot	Reenable debug assertions for libstd on macOS	2019-09-14 12:49:23 +02:00
crate_patches	Test rust-lang/regex example shootout-regex-dna	2019-07-30 13:37:54 +02:00
example	Add extern type pointer cast tests	2019-09-21 11:32:11 +02:00
patches	Rustup to rustc 1.40.0-nightly (`084beb83e` 2019-09-27)	2019-10-03 16:24:06 +02:00
src	Call cg_ssa::base::provide_both in provide{,_extern}	2019-09-28 17:01:17 +02:00
.gitignore	Libtest support	2019-08-09 12:46:24 +02:00
.travis.yml	Improve ci times	2019-08-10 14:22:22 +02:00
abc.cpp	Implement line debuginfo	2019-01-26 11:59:57 +01:00
Cargo.lock	Bump gimli from `1f1a9eb` to `7e76a9d` (#722 )	2019-09-24 12:00:04 +02:00
cargo.sh	Test rust-lang/regex example shootout-regex-dna	2019-07-30 13:37:54 +02:00
Cargo.toml	Reduce time required to build from scratch in dev mode	2019-09-21 14:27:45 +02:00
clean_all.sh	Remove simple-raytracer too in clean_all.sh	2019-09-12 20:22:09 +02:00
config.sh	Don't pass -Zalways-encode-mir to rustc	2019-08-19 16:27:33 +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	Add ebobby/simple-raytracer as benchmark	2019-08-30 17:31:37 +02:00
Readme.md	Update Readme.md	2019-09-20 09:54:23 +02:00
rust-toolchain
test.sh	Correctly align offset for dst field projections	2019-09-02 20:09:37 +02:00

Readme.md

WIP Cranelift codegen backend for rust

⚠⚠⚠ Threads and 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

Usage

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

Cargo

$ $cg_clif_dir/cargo.sh run

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

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)

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.