…iaskrgr

Rollup of 3 pull requests

Successful merges:

 - rust-lang#126140 (Rename `std::fs::try_exists` to  `std::fs::exists` and stabilize fs_try_exists)
 - rust-lang#126318 (Add a `x perf` command for integrating bootstrap with `rustc-perf`)
 - rust-lang#126552 (Remove use of const traits (and `feature(effects)`) from stdlib)

r? `@ghost`
`@rustbot` modify labels: rollup

Rollup merge of rust-lang#126318 - Kobzol:bootstrap-perf, r=onur-ozkan

Add a `x perf` command for integrating bootstrap with `rustc-perf`

This PR adds a new `x perf` command to bootstrap. The idea is to let rustc developers profile (`profile_local`) and benchmark (`bench_local`) a stage1/stage2 compiler directly from within `rust`.

Before, if you wanted to use `rustc-perf`, you had to clone it, set it up, copy the `rustc` sysroot after every change to `rust` etc. This is an attempt to automate that.

I opened this PR mostly for discussion. My idea is to offer an interface that looks something like this (a random sample of commands):
```bash
x perf --stage 2 profile eprintln
x perf --stage1 profile cachegrind
x perf benchmark --id baseline
x perf benchmark --id after-edit
x perf cmp baseline after-edit
```

In this PR, I'd like to only implement the simplest case (`profile_local (eprintln)`), because that only requires a single sysroot (you don't compare anything), and it's relatively easy to set up. Also, I'd like to avoid forcing developers to deal with the rustc-perf UI, so more complex use-cases (like benchmarking two sysroots and comparing the results) should probably wait for rust-lang/rustc-perf#1734 (which is hopefully coming along soon-ish).

I'm not sure if it's better to do this in bootstrap directly, or if I should create some shim tool that will receive a `rustc` sysroot, and offer a simplified CLI on top of `rustc-perf`.

## Why is a separate CLI needed?
We definitely need to add some support to bootstrap to automate preparing `rustc-perf` and the `rustc` sysroot, but in theory after that we could just let people invoke `rustc-perf` manually. While that is definitely possible, you'd need to manually figure out where is your sysroot located, which seems annoying to me. The `rustc-perf` CLI is also relatively complex, and for this use-case it makes sense to only use a subset of it. So I thought that it would be better to offer a simplified interface on top of it that would make life easier for contributors. But maybe it's not worth it.

CC `@onur-ozkan`

…-ozkan

Implement `x perf` as a separate tool

Continues work from rust-lang#126318, adds a CLI for running `rustc-perf` profiling commands through a new `rustc-perf-wrapper` tool. The CLI is in a separate tool to enable experimentation outside of `bootstrap`.

This is probably most of what we can do so far, I'll add support for benchmarking once `rustc-perf` gets a terminal output for comparing benchmark results.

r? `@onur-ozkan`

…-ozkan

Implement `x perf` as a separate tool

Continues work from rust-lang#126318, adds a CLI for running `rustc-perf` profiling commands through a new `rustc-perf-wrapper` tool. The CLI is in a separate tool to enable experimentation outside of `bootstrap`.

This is probably most of what we can do so far, I'll add support for benchmarking once `rustc-perf` gets a terminal output for comparing benchmark results.

r? ``@onur-ozkan``

Rollup merge of rust-lang#127002 - Kobzol:bootstrap-perf-tool, r=onur-ozkan

Implement `x perf` as a separate tool

Continues work from rust-lang#126318, adds a CLI for running `rustc-perf` profiling commands through a new `rustc-perf-wrapper` tool. The CLI is in a separate tool to enable experimentation outside of `bootstrap`.

This is probably most of what we can do so far, I'll add support for benchmarking once `rustc-perf` gets a terminal output for comparing benchmark results.

r? ``@onur-ozkan``

Update Rust toolchain from nightly-2024-06-22 to nightly-2024-06-23
without any other source changes.
This is an automatically generated pull request. If any of the CI checks
fail, manual intervention is required. In such a case, review the
changes at https://github.com/rust-lang/rust from
rust-lang@c1b336c
up to
rust-lang@3cb521a.
The log for this commit range is:
rust-lang@3cb521a434 Auto merge of
rust-lang#126761 - GuillaumeGomez:unsafe_extern_blocks, r=spastorino
rust-lang@a0f01c3c10 Auto merge of
rust-lang#126838 - matthiaskrgr:rollup-qkop22o, r=matthiaskrgr
rust-lang@dc9a08f535 Rollup merge of
rust-lang#126552 - fee1-dead-contrib:rmfx, r=compiler-errors
rust-lang@162120b4fa Rollup merge of
rust-lang#126318 - Kobzol:bootstrap-perf, r=onur-ozkan
rust-lang@f3ced9d540 Rollup merge of
rust-lang#126140 - eduardosm:stabilize-fs_try_exists, r=Amanieu
rust-lang@f944afe380 Auto merge of
rust-lang#116113 - kpreid:arcmut, r=dtolnay
rust-lang@88c3db57e4 Generalize
`{Rc,Arc}::make_mut()` to unsized types.
rust-lang@a9a4830d25 Replace
`WriteCloneIntoRaw` with `CloneToUninit`.
rust-lang@ec201b8650 Add
`core::clone::CloneToUninit`.
rust-lang@81da6a6d40 Make `effects` an
incomplete feature
rust-lang@ac47dbad50 Auto merge of
rust-lang#126824 - GuillaumeGomez:rollup-sybv8o7, r=GuillaumeGomez
rust-lang@d265538016 Rollup merge of
rust-lang#126823 - GuillaumeGomez:migrate-run-make-inline-always-many-cgu,
r=Kobzol
rust-lang@25bcc7d130 Rollup merge of
rust-lang#126731 - Kobzol:bootstrap-cmd-refactor, r=onur-ozkan
rust-lang@399c5cabdd Rollup merge of
rust-lang#126723 - estebank:dot-dot-dot, r=Nadrieril
rust-lang@3ed2cd74b5 Rollup merge of
rust-lang#126686 - fmease:dump-preds-n-item-bounds, r=compiler-errors
rust-lang@07e8b3ac01 Rollup merge of
rust-lang#126555 - beetrees:f16-inline-asm-arm, r=Amanieu
rust-lang@d03d6c0fea Auto merge of
rust-lang#126750 - scottmcm:less-unlikely, r=jhpratt
rust-lang@e7dfd4a913 Migrate
`run-make/inline-always-many-cgu` to `rmake.rs`
rust-lang@d9962bb4d8 Make `read_dir`
method take a mutable callback
rust-lang@f1b0d54ca9 Auto merge of
rust-lang#126816 - weihanglo:update-cargo, r=weihanglo
rust-lang@0bd58d8122 Apply review
comments.
rust-lang@250586cb2e Wrap std `Output` in
`CommandOutput`
rust-lang@f0aceed540 Auto merge of
rust-lang#126817 - workingjubilee:rollup-0rg0k55, r=workingjubilee
rust-lang@38bd7a0fcb Add
`#[rustc_dump_{predicates,item_bounds}]`
rust-lang@1916b3d57f Rollup merge of
rust-lang#126811 - compiler-errors:tidy-ftl, r=estebank
rust-lang@539090e5cd Rollup merge of
rust-lang#126809 - estebank:wording-tweak, r=oli-obk
rust-lang@b9ab6c3501 Rollup merge of
rust-lang#126798 - miguelfrde:master, r=tmandry
rust-lang@9498d5cf2f Rollup merge of
rust-lang#126787 - Strophox:get-bytes, r=RalfJung
rust-lang@1f9793f1aa Rollup merge of
rust-lang#126722 - adwinwhite:ptr_fn_abi, r=celinval
rust-lang@84b0922565 Rollup merge of
rust-lang#126712 - Oneirical:bootest-constestllation, r=jieyouxu
rust-lang@e7956cd994 Rollup merge of
rust-lang#126530 - beetrees:f16-inline-asm-riscv, r=Amanieu
rust-lang@10e1f5d212 Auto merge of
rust-lang#124101 - the8472:pidfd-methods, r=cuviper
rust-lang@2c65a24b8c Update cargo
rust-lang@fcae62649e Auto merge of
rust-lang#126758 - spastorino:avoid-safe-outside-unsafe-blocks, r=compiler-errors
rust-lang@ffd72b1700 Fix remaining cases
rust-lang@ea681ef281 Add a tidy rule to
make sure that diagnostics don't end in periods
rust-lang@8abf149bde to extract a pidfd
we must consume the child
rust-lang@0787c7308c Add PidFd::{kill,
wait, try_wait}
rust-lang@5d5892e966 Remove stray `.`
from error message
rust-lang@d94a40516e
[fuchsia-test-runner] Remove usage of kw_only
rust-lang@771e44ebd3 Add `f16` inline ASM
support for RISC-V
rust-lang@753fb070bb Add `f16` inline ASM
support for 32-bit ARM
rust-lang@22831ed117 Do not allow safe
usafe on static and fn items
rust-lang@a6a83d3d4e bless tests
rust-lang@b512bf6f77 add as_ptr to trait
AllocBytes, fix 2 impls; add pub fn get_bytes_unchecked_raw in
allocation.rs; add pub fn get_alloc_bytes_unchecked_raw[_mut] in
memory.rs
rust-lang@02aaea1803 update intrinsic
const param counting
rust-lang@3b14b756d8 Remove
`feature(effects)` from the standard library
rust-lang@a314f7363a Stop using
`unlikely` in `strict_*` methods
rust-lang@225796a2df Add method to get
`FnAbi` of function pointer
rust-lang@630c3adb14 Add regression test
for `unsafe_extern_blocks`
rust-lang@bb9a3ef90c Implement
`unsafe_extern_blocks` feature in rustdoc
rust-lang@3c0a4bc915 rewrite
crate-name-priority to rmake
rust-lang@bc12972bcd Slightly refactor
the dumping of HIR analysis data
rust-lang@3fe4d134dd Appease `clippy`
rust-lang@c15293407f Remove unused import
rust-lang@5c4318d02c Implement `run_cmd`
in terms of `run_tracked`
rust-lang@0de7b92cc6 Remove
`run_delaying_failure`
rust-lang@e933cfb13c Remove
`run_quiet_delaying_failure`
rust-lang@949e667d3f Remove `run_quiet`
rust-lang@a12f541a18 Implement new
command execution logic
rust-lang@9fd7784b97 Fix `...` in
multline code-skips in suggestions
rust-lang@f22b5afa6a rewrite
error-writing-dependencies to rmake
rust-lang@75ee1d74a9 rewrite
relocation-model to rmake
rust-lang@87d2e61428 Add `x perf` command
for profiling the compiler using `rustc-perf`
rust-lang@fd44aca2aa Copy `rustc-fake`
binary when building the `rustc-perf` tool
rust-lang@9e0b76201b Add `RustcPerf`
bootstrap tool
rust-lang@9ec178df0b Add `cargo_args` to
`ToolBuild`
rust-lang@6a04dfe78c Rename
`std::fs::try_exists` to `std::fs::exists` and stabilize fs_try_exists

Co-authored-by: celinval <35149715+celinval@users.noreply.github.com>