nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2024-11-26 00:34:06 +00:00
Code Issues Packages Projects Releases Wiki Activity
Empowering everyone to build reliable and efficient software.
269,774 Commits 7 Branches 139 Tags 1.9 GiB
Rust 96.1%
RenderScript 0.7%
JavaScript 0.6%
Shell 0.6%
Fluent 0.4%
Other 1.4%
a0d98ff0e5
Go to file
bors a0d98ff0e5 Auto merge of #132356 - jieyouxu:unsound-simplify_aggregate_to_copy, r=cjgillot,DianQK 
Mark `simplify_aggregate_to_copy` mir-opt as unsound

Mark the `simplify_aggregate_to_copy` mir-opt added in #128299 as unsound as it seems to miscompile the MCVE reported in https://github.com/rust-lang/rust/issues/132353. The mir-opt can be re-enabled once this case is fixed.

```rs
fn pop_min(mut score2head: Vec<Option<usize>>) -> Option<usize> {
    loop {
        if let Some(col) = score2head[0] {
            score2head[0] = None;
            return Some(col);
        }
    }
}

fn main() {
    let min = pop_min(vec![Some(1)]);
    println!("min: {:?}", min);
    // panic happens here on beta in release mode
    // but not in debug mode
    min.unwrap();
}
```

This MCVE is included as a `run-pass` ui regression test in the first commit. I built the ui test with a nightly manually, and can reproduce the behavioral difference with `-C opt-level=0` and `-C opt-level=1`. Locally, this ui test will fail unless it was run on a compiler built with the second commit marking the mir-opt as unsound thus disabling it by default.

This PR **partially reverts** commit e7386b3, reversing changes made to 02b1be1. The mir-opt implementation is just marked as unsound but **not** reverted to make reland reviews easier. Test changes are **reverted if they were not pure additions**. Tests added by the original PR received `-Z unsound-mir-opts` compile-flags.

cc `@DianQK` `@cjgillot` (PR author and reviewer of #128299)
2024-10-31 15:29:14 +00:00
.github Print how much disk space is left after CI build runs 2024-10-13 21:58:24 +02:00
compiler Auto merge of #132356 - jieyouxu:unsound-simplify_aggregate_to_copy, r=cjgillot,DianQK 2024-10-31 15:29:14 +00:00
library Remove do_not_const_check from Iterator methods 2024-10-30 19:24:34 +00:00
LICENSES Rename LICENSES/GPL-2.0.txt into LICENSES/GPL-2.0-only.txt 2024-09-06 16:01:46 +02:00
src Auto merge of #132401 - matthiaskrgr:rollup-599ieqr, r=matthiaskrgr 2024-10-31 12:57:11 +00:00
tests Auto merge of #132356 - jieyouxu:unsound-simplify_aggregate_to_copy, r=cjgillot,DianQK 2024-10-31 15:29:14 +00:00
.clang-format Add .clang-format 2024-06-26 05:56:00 +08:00
.editorconfig Only use max_line_length = 100 for *.rs 2023-07-10 15:18:36 -07:00
.git-blame-ignore-revs Add rustfmt 2024 reformatting to git blame ignore 2024-09-23 10:02:04 +02:00
.gitattributes Rename config.toml.example to config.example.toml 2023-03-11 14:10:00 -08:00
.gitignore Rollup merge of #129620 - WaffleLapkin:flake, r=Noratrieb 2024-10-17 20:47:29 +02:00
.gitmodules Update to LLVM 19.1.0 2024-09-20 14:41:36 -07:00
.ignore Add .ignore file to make config.toml searchable in vscode 2024-06-24 10:15:16 +02:00
.mailmap Add mailmap entry for kobzol 2024-10-17 19:43:13 +02:00
Cargo.lock compiletest: improve robustness of LLVM version handling 2024-10-30 12:54:44 +08:00
Cargo.toml Bump Clippy version -> 0.1.84 2024-10-18 13:25:50 +02:00
CODE_OF_CONDUCT.md Remove the code of conduct; instead link https://www.rust-lang.org/conduct.html 2019-10-05 22:55:19 +02:00
config.example.toml update download-rustc doc in config.example.toml 2024-10-28 18:59:37 +03:00
configure Ensure ./configure works when configure.py path contains spaces 2024-02-16 18:57:22 +00:00
CONTRIBUTING.md fix: Update CONTRIBUTING.md recommend -> recommended 2023-11-16 23:57:09 +05:30
COPYRIGHT Update COPYRIGHT file 2022-10-30 10:23:14 -04:00
INSTALL.md add clarity for custom path installation 2024-10-06 07:37:00 -05:00
LICENSE-APACHE Remove appendix from LICENCE-APACHE 2019-12-30 14:25:53 +00:00
LICENSE-MIT LICENSE-MIT: Remove inaccurate (misattributed) copyright notice 2017-07-26 16:51:58 -07:00
README.md Use SVG logos in the README.md. 2024-04-03 19:48:20 +02:00
RELEASES.md relnotes: fix stabilizations of assume_init 2024-10-22 10:47:42 -07:00
REUSE.toml Fix licensing information in REUSE.toml 2024-09-06 16:01:47 +02:00
rust-bors.toml Increase timeout for new bors bot 2024-03-13 08:31:07 +01:00
rustfmt.toml Use style_edition over version 2024-09-22 19:11:28 -04:00
triagebot.toml the unvacationer 2024-10-30 13:29:05 +00:00
x Make x capable of resolving symlinks 2023-10-14 17:53:33 +03:00
x.ps1 use & instead of start-process in x.ps1 2023-12-09 09:46:16 -05:00
x.py Fix recent python linting errors 2023-08-02 04:40:28 -04:00

README.md

This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.

Why Rust?

  • Performance: Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrate with other languages.

  • Reliability: Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.

  • Productivity: Comprehensive documentation, a compiler committed to providing great diagnostics, and advanced tooling including package manager and build tool (Cargo), auto-formatter (rustfmt), linter (Clippy) and editor support (rust-analyzer).

Quick Start

Read "Installation" from The Book.

Installing from Source

If you really want to install from source (though this is not recommended), see INSTALL.md.

Getting Help

See https://www.rust-lang.org/community for a list of chat platforms and forums.

Contributing

See CONTRIBUTING.md.

License

Rust is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses.

See LICENSE-APACHE, LICENSE-MIT, and COPYRIGHT for details.

Trademark

The Rust Foundation owns and protects the Rust and Cargo trademarks and logos (the "Rust Trademarks").

If you want to use these names or brands, please read the media guide.

Third-party logos may be subject to third-party copyrights and trademarks. See Licenses for details.