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bjorn3 a125b62536 [OPT] Don't force return value of call to stack Benchmark #1: ./simple_raytracer_before Time (mean ± σ): 14.420 s ± 0.568 s [User: 14.376 s, System: 0.026 s] Range (min … max): 13.730 s … 15.170 s 10 runs Benchmark #2: simple_raytracer_after Time (mean ± σ): 13.679 s ± 0.576 s [User: 13.628 s, System: 0.020 s] Range (min … max): 12.761 s … 14.552 s 10 runs Summary './simple_raytracer_after' ran 1.05 ± 0.06 times faster than './simple_raytracer_before'		2019-12-20 12:13:07 +01:00
build_sysroot	Run libcore tests	2019-11-24 15:44:39 +01:00
crate_patches	Test rust-lang/regex example shootout-regex-dna	2019-07-30 13:37:54 +02:00
example	Rustup to rustc 1.41.0-nightly (`6d77e45f0` 2019-12-04)	2019-12-05 21:00:57 +01:00
patches	Fix Linux libtest	2019-12-16 11:50:20 +01:00
src	[OPT] Don't force return value of call to stack	2019-12-20 12:13:07 +01:00
.gitignore	Libtest support	2019-08-09 12:46:24 +02:00
.travis.yml	Fix travis ci config	2019-10-19 11:25:01 +02:00
abc.cpp	Implement line debuginfo	2019-01-26 11:59:57 +01:00
Cargo.lock	Update dependencies	2019-12-16 12:03:58 +01:00
cargo.sh	Test rust-lang/regex example shootout-regex-dna	2019-07-30 13:37:54 +02:00
Cargo.toml	Update Cranelift	2019-12-08 11:51:18 +01:00
clean_all.sh	Remove simple-raytracer too in clean_all.sh	2019-09-12 20:22:09 +02:00
config.sh	Rustup to rustc 1.40.0-nightly (`2daa404e9` 2019-10-02)	2019-10-03 17:22:01 +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	Rustup to rustc 1.40.0-nightly (`10a52c25c` 2019-10-24)	2019-10-25 21:41:24 +02:00
Readme.md	Update Readme.md	2019-09-20 09:54:23 +02:00
rust-toolchain	Initial commit	2018-06-17 18:05:11 +02:00
test.sh	Third try to fix CI	2019-12-17 16:55:29 +01:00

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.