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Rollup of 6 pull requests #110191

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zhaixiaojuan and others added 24 commits April 4, 2023 17:05
… literals"

Reverts PR rust-lang#108031
Fixes (doesnt close until beta backported) rust-lang#109746

This reverts commit e3f9db5.
This reverts commit 98b82ae.
This reverts commit 380fa26.
Previously, we would never build the target std, only the host std.
Initial support for loongarch64-unknown-linux-gnu

Hi, We hope to add a new port in rust for LoongArch.

LoongArch intro
LoongArch is a RISC style ISA which is independently designed by Loongson
Technology in China. It is divided into two versions, the 32-bit version (LA32)
and the 64-bit version (LA64). LA64 applications have application-level
backward binary compatibility with LA32 applications. LoongArch is composed of
a basic part (Loongson Base) and an expanded part. The expansion part includes
Loongson Binary Translation (LBT), Loongson VirtualiZation (LVZ), Loongson SIMD
EXtension (LSX) and Loongson Advanced SIMD EXtension(LASX).

Currently the LA464 processor core supports LoongArch ISA and the Loongson
3A5000 processor integrates 4 64-bit LA464 cores. LA464 is a four-issue 64-bit
high-performance processor core. It can be used as a single core for high-end
embedded and desktop applications, or as a basic processor core to form an
on-chip multi-core system for server and high-performance machine applications.

Documentations:
ISA:
https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html
ABI:
https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-EN.html
More docs can be found at:
https://loongson.github.io/LoongArch-Documentation/README-EN.html

Since last year, we have locally adapted two versions of rust, rust1.41 and rust1.57, and completed the test locally.
I'm not sure if I'm submitting all the patches at once, so I split up the patches and here's one of the commits
Create "suggested tests" tool in `rustbuild`

Not the claimed person in rust-lang#97339 but:
I've done a very rough implementation of this feature in-tree. I'm very new to `rustc` development (outside of docs) so some help would be greatly appreciated. The UI of this new subcommand obviously will change and I need some mentoring with the `--run` flag.

r? ``@jyn514``
…ws, r=lcnr

Report overflows gracefully with new solver

avoid reporting overflows as ambiguity errors, so that the error message is clearer.

r? `@lcnr`
…ertlarsan68

Fix `x test ui --target foo` when download-rustc is enabled

Previously, we would never build the target std, only the host std:

```
; x t tests/ui/attributes --target wasm32-unknown-unknown
Building bootstrap
    Finished dev [unoptimized] target(s) in 0.02s
Building stage0 library artifacts (x86_64-unknown-linux-gnu)
    Finished release [optimized] target(s) in 0.08s
Building tool compiletest (stage0)
    Finished release [optimized] target(s) in 0.09s
Check compiletest suite=ui mode=ui (x86_64-unknown-linux-gnu -> wasm32-unknown-unknown)
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { depth: 0, inner: Io { path: Some("/home/jyn/src/rust2/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/wasm32-unknown-unknown/lib"), err: Os { code: 2, kind: NotFound, message: "No such file or directory" } } }', src/tools/compiletest/src/main.rs:842:31
```

Helps with rust-lang#81930.
…avidtwco

Revert "Don't recover lifetimes/labels containing emojis as character literals"

Reverts PR rust-lang#108031 per rust-lang#109754 (comment)

Fixes (doesnt close until beta backported) rust-lang#109746

This reverts commit e3f9db5.
This reverts commit 98b82ae.
This reverts commit 380fa26.
Fix typos in librustdoc, tools and config files

I used [`typos`](https://github.com/crate-ci/typos) to fix all typos, minus the ones present in rust-lang#110153 and in rust-lang#110154.

Refs rust-lang#110150
@rustbot rustbot added A-meta Area: Issues & PRs about the rust-lang/rust repository itself A-rustdoc-json Area: Rustdoc JSON backend S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Apr 11, 2023
@rustbot rustbot added T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. T-style Relevant to the style team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver) rollup A PR which is a rollup labels Apr 11, 2023
@Dylan-DPC Dylan-DPC closed this Apr 12, 2023
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A-meta Area: Issues & PRs about the rust-lang/rust repository itself A-rustdoc-json Area: Rustdoc JSON backend rollup A PR which is a rollup S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. T-style Relevant to the style team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
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7 participants