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Rollup of 8 pull requests #127653

Merged
merged 22 commits into from
Jul 12, 2024
Merged

Rollup of 8 pull requests #127653

merged 22 commits into from
Jul 12, 2024

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matthiaskrgr
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Successful merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

zachs18 and others added 22 commits May 10, 2024 13:44
we now distinguish between pidfd_spawn support, pidfd-via-fork/exec and not-supported
`Config::src` already contains the top-level path, so we don't need to
add git overhead just to reach this path.

Signed-off-by: onur-ozkan <work@onurozkan.dev>
binutils 2.40 is required by LLVM 19, as older versions do not
know about the zmmull extension.

I've had to backport some patches to glibc and gcc as well,
as they don't build with binutils 2.40. Alternatively, we could
also switch to glibc 2.35 and gcc 12 (I think). I figured we'd
want to avoid the glibc version change, but if that's fine for
riscv I can go with that instead.
A `rustc_const_stable` attribute by itself has nonintuitive purpose when
placed in a public module.

Separately, it would probably be okay to rename `const_strlen` to just
`strlen` to make it more clear this is our general-purpose
implementation of strlen now, not something specifically for const
(avoiding confusion like in PR 127444).
The previous value, 10 hours, is unnecessarily long, since most of our jobs finish within 2.5 hours currently.
fully move it into `rustc_type_ir` and make it
independent of `Interner`.
Generalize `fn allocator` for Rc/Arc.

Split out from rust-lang#119761

- For `Rc`/`Arc`, the existing associated `fn`s are changed to allow unsized pointees.
 - For `Weak`s, new methods are added.

`````@rustbot````` label +A-allocators
Add AMX target-features and `x86_amx_intrinsics` feature flag

This is an effort towards rust-lang#126622. This adds support for all 5 target-features for `AMX`, and introduces the feature flag `x86_amx_intrinsics`, which would gate these target-features and the yet-to-be-implemented amx intrinsics in stdarch.
Use pidfd_spawn for faster process spawning when a PidFd is requested

glibc 2.39 added `pidfd_spawnp` and `pidfd_getpid` which makes it possible to get pidfds while staying on the CLONE_VFORK path.

verified that vfork gets used with strace:

```
$  strace -ff -e pidfd_open,clone3,openat,execve,waitid,close ./x test std --no-doc -- pidfd
[...]
[pid 2820532] clone3({flags=CLONE_VM|CLONE_PIDFD|CLONE_VFORK|CLONE_CLEAR_SIGHAND, pidfd=0x7b7f885fec6c, exit_signal=SIGCHLD, stack=0x7b7f88aff000, stack_size=0x9000}strace: Process 2820533 attached
 <unfinished ...>
[pid 2820533] execve("/home/the8472/bin/sleep", ["sleep", "1000"], 0x7ffdd0e268d8 /* 107 vars */) = -1 ENOENT (No such file or directory)
[pid 2820533] execve("/home/the8472/.cargo/bin/sleep", ["sleep", "1000"], 0x7ffdd0e268d8 /* 107 vars */) = -1 ENOENT (No such file or directory)
[pid 2820533] execve("/usr/local/bin/sleep", ["sleep", "1000"], 0x7ffdd0e268d8 /* 107 vars */) = -1 ENOENT (No such file or directory)
[pid 2820533] execve("/usr/bin/sleep", ["sleep", "1000"], 0x7ffdd0e268d8 /* 107 vars */ <unfinished ...>
[pid 2820532] <... clone3 resumed> => {pidfd=[3]}, 88) = 2820533
[pid 2820533] <... execve resumed>)     = 0
[pid 2820532] openat(AT_FDCWD, "/proc/self/fdinfo/3", O_RDONLY|O_CLOEXEC) = 4
[pid 2820532] close(4)                  = 0
```

Tracking issue: rust-lang#82971
Stabilize const_cstr_from_ptr (CStr::from_ptr, CStr::count_bytes)

Completed the pair of FCPs rust-lang#113219 (comment) + rust-lang#114441 (comment).

`CStr::from_ptr` is covered by just the first FCP on its own. `CStr::count_bytes` requires the approval of both FCPs. The second paragraph of the first link and the last paragraph of the second link explain the relationship between the two FCPs. As both have been approved, we can proceed with stabilizing `const` on both of these already-stable functions.
…r=Kobzol

remove unnecessary `git` usages

`Config::src` already contains the top-level path, so we don't need to add git overhead just to reach this path.
Update dist-riscv64-linux to binutils 2.40

binutils 2.40 is required by LLVM 19, as older versions do not know about the zmmul extension.

I've had to backport some patches to glibc and gcc as well, as they don't build with binutils 2.40. Alternatively, we could also switch to glibc 2.35 and gcc 10 (I think). I figured we'd want to avoid the glibc version change, but if that's fine for riscv I can go with that instead.

r? `````@cuviper`````

try-job: dist-riscv64-linux
…r-errors

generalize search graph to enable fuzzing

I do not believe it to be feasible to correctly implement the search graph without fuzzing. This PR enables this by requiring a fuzzer to only implement three new traits:
- `Cx`: implemented by all `I: Interner`
- `ProofTreeBuilder`: implemented by `struct ProofTreeBuilder<D>` for all `D: SolverDelegate`
- `Delegate`: implemented for a new `struct SearchGraphDelegate<D>` for all `D: SolverDelegate`

It also moves the evaluation cache implementation into `rustc_type_ir`, requiring `Interner` to provide methods to create and access arbitrary `WithDepNode<T>` and to provide mutable access to a given `GlobalCache`. It otherwise does not change the API surface for users of the shared library.

This change should not impact behavior in any way.

r? ``@compiler-errors``
…lbini

Lower timeout of CI jobs to 4 hours

The previous value, 10 hours, is unnecessarily long, since most of our jobs finish within 2.5 hours currently. This could help us detect abnormally long CI runs.

r? ``@pietroalbini``
@rustbot rustbot added A-query-system Area: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html) A-testsuite Area: The testsuite used to check the correctness of rustc O-unix Operating system: Unix-like 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-infra Relevant to the infrastructure 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 Jul 12, 2024
@rustbot rustbot added WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver) rollup A PR which is a rollup labels Jul 12, 2024
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@bors r+ rollup=never p=8

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bors commented Jul 12, 2024

📌 Commit f11c2c8 has been approved by matthiaskrgr

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 12, 2024
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bors commented Jul 12, 2024

⌛ Testing commit f11c2c8 with merge 5d76a13...

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bors commented Jul 12, 2024

☀️ Test successful - checks-actions
Approved by: matthiaskrgr
Pushing 5d76a13 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Jul 12, 2024
@bors bors merged commit 5d76a13 into rust-lang:master Jul 12, 2024
7 checks passed
@rustbot rustbot added this to the 1.81.0 milestone Jul 12, 2024
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📌 Perf builds for each rolled up PR:

PR# Message Perf Build Sha
#124980 Generalize fn allocator for Rc/Arc. 49ea9c8d45eb099aa713f5edda7ad449a6eea046 (link)
#126639 Add AMX target-features and x86_amx_intrinsics feature fl… ff9115899d25d9f2341805c0262e82218303955e (link)
#126827 Use pidfd_spawn for faster process spawning when a PidFd is… 9f59e88ba564758183c767044599e9115e34c2ca (link)
#127433 Stabilize const_cstr_from_ptr (CStr::from_ptr, CStr::count_… 2b460bd1e82817cd188ac1c9d974de9d41b4819c (link)
#127552 remove unnecessary git usages 44102a23457178be9540f15470fe87c14df8148f (link)
#127613 Update dist-riscv64-linux to binutils 2.40 ca8d02b10ca63f6944672959492a5080aac3b946 (link)
#127627 generalize search graph to enable fuzzing 59e050730f38612dbb7a0d46a375e1aacaa4c75c (link)
#127648 Lower timeout of CI jobs to 4 hours 28b22b055b8a2f6075f0cc922f601ef85aee05be (link)

previous master: 05eac57ef6

In the case of a perf regression, run the following command for each PR you suspect might be the cause: @rust-timer build $SHA

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Finished benchmarking commit (5d76a13): comparison URL.

Overall result: ❌✅ regressions and improvements - no action needed

@rustbot label: -perf-regression

Instruction count

This is a highly reliable metric that was used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)
- - 0
Regressions ❌
(secondary)
1.9% [1.5%, 2.2%] 2
Improvements ✅
(primary)
- - 0
Improvements ✅
(secondary)
-0.3% [-0.3%, -0.3%] 1
All ❌✅ (primary) - - 0

Max RSS (memory usage)

This benchmark run did not return any relevant results for this metric.

Cycles

This benchmark run did not return any relevant results for this metric.

Binary size

Results (primary 0.0%, secondary 0.0%)

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)
0.0% [0.0%, 0.0%] 1
Regressions ❌
(secondary)
0.0% [0.0%, 0.1%] 14
Improvements ✅
(primary)
- - 0
Improvements ✅
(secondary)
- - 0
All ❌✅ (primary) 0.0% [0.0%, 0.0%] 1

Bootstrap: 706.879s -> 704.911s (-0.28%)
Artifact size: 328.72 MiB -> 328.85 MiB (0.04%)

jaisnan pushed a commit to jaisnan/rust-dev that referenced this pull request Jul 29, 2024
Update Rust toolchain from nightly-2024-07-12 to nightly-2024-07-13
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@5315cbe
up to
rust-lang@c6727fc.
The log for this commit range is:
rust-lang@c6727fc9b5 Auto merge of
rust-lang#123351 - beetrees:x86-ret-snan-rust, r=nikic,workingjubilee
rust-lang@62c068feea Auto merge of
rust-lang#127636 - nnethercote:fix-Parser-look_ahead, r=oli-obk
rust-lang@5d76a13bbe Auto merge of
rust-lang#127653 - matthiaskrgr:rollup-72bqgvp, r=matthiaskrgr
rust-lang@f11c2c8e95 Rollup merge of
rust-lang#127648 - Kobzol:ci-lower-timeout, r=pietroalbini
rust-lang@526da2366a Rollup merge of
rust-lang#127627 - lcnr:rustc_search_graph, r=compiler-errors
rust-lang@f5fa6fb602 Rollup merge of
rust-lang#127613 - nikic:riscv-update, r=cuviper
rust-lang@b4f002d2e5 Rollup merge of
rust-lang#127552 - onur-ozkan:unnecessary-git-usage, r=Kobzol
rust-lang@8ceb4e49ff Rollup merge of
rust-lang#127433 - dtolnay:conststrlen, r=workingjubilee
rust-lang@f9b3e8b387 Rollup merge of
rust-lang#126827 - the8472:pidfd-spawn, r=workingjubilee
rust-lang@18152d72a4 Rollup merge of
rust-lang#126639 - sayantn:amx, r=Amanieu
rust-lang@65ea92d4a1 Rollup merge of
rust-lang#124980 - zachs18:rc-allocator, r=Amanieu
rust-lang@05eac57ef6 Auto merge of
rust-lang#127479 - Urgau:rustc-stable-hash, r=michaelwoerister
rust-lang@15f770b143 enable fuzzing of
`SearchGraph`
rust-lang@cae9d480bf Adjust tests for x86
"Rust" ABI changes
rust-lang@3f4b9dd463 Lower timeout of CI
jobs to 4 hours
rust-lang@7f1518bddd Add instability
attribute on private const_strlen function
rust-lang@b286722878 Auto merge of
rust-lang#127635 - matthiaskrgr:rollup-foopajr, r=matthiaskrgr
rust-lang@100f3fd133 Add a new special
case to `Parser::look_ahead`.
rust-lang@ebe1305b1e Remove the bogus
special case from `Parser::look_ahead`.
rust-lang@dad95578b0 Add unit tests for
`Parser::look_ahead`.
rust-lang@ec05c4ea3f Add the feature gate
and target-features
rust-lang@c2b7842555 Rollup merge of
rust-lang#127625 - SkiFire13:revert-comment-deletion, r=workingjubilee
rust-lang@ca576eae4e Rollup merge of
rust-lang#127622 - compiler-errors:builtin-internal, r=lqd
rust-lang@fe564c10ab Rollup merge of
rust-lang#127607 - Zalathar:normalize-hint, r=wesleywiser
rust-lang@83d1a1b252 Rollup merge of
rust-lang#127596 - tesuji:help-unwrap-or, r=compiler-errors
rust-lang@1e7ad4c3ed Rollup merge of
rust-lang#127422 - greaka:master, r=workingjubilee
rust-lang@58fe37f2c3 Rollup merge of
rust-lang#127164 - Nadrieril:clean-lowering-loop, r=matthewjasper
rust-lang@4a31a6c32a Auto merge of
rust-lang#127382 - estebank:const-let, r=compiler-errors
rust-lang@5e311f933d Auto merge of
rust-lang#127614 - matthiaskrgr:rollup-8geziwi, r=matthiaskrgr
rust-lang@a776e5f922 Add doc for
deconstruct_option_or_result
rust-lang@872d7b82e1 Add suggestion for
`Option<&Vec<T>> -> Option<&[T]`
rust-lang@d9170dc666 Add regression test
for issue 127545
rust-lang@4df75140dd Fix aarch64 test
rust-lang@cbe75486f7 Account for `let foo
= expr`; to suggest `const foo: Ty = expr;`
rust-lang@b56dc8ee90 Use verbose style
when suggesting changing `const` with `let`
rust-lang@d9021791eb Revert accidental
comment deletion
rust-lang@b77d3ef7c4 Mark builtin syntax
as internal
rust-lang@fa3ce50f0b Rollup merge of
rust-lang#127605 - nikic:remove-extern-wasm, r=oli-obk
rust-lang@d433f176ef Rollup merge of
rust-lang#127601 - trevyn:issue-127600, r=compiler-errors
rust-lang@47ab86653e Rollup merge of
rust-lang#127599 - tgross35:lazy_cell_consume-rename, r=workingjubilee
rust-lang@a10b4d1463 Rollup merge of
rust-lang#127598 - weiznich:diagnostic_do_not_recommend_also_skips_help,
r=compiler-errors
rust-lang@73c500b3a7 Rollup merge of
rust-lang#127591 - compiler-errors:label-after-primary, r=lcnr
rust-lang@380c78741e Rollup merge of
rust-lang#127588 - uweigand:s390x-f16-doctests, r=tgross35
rust-lang@6fd955549a Rollup merge of
rust-lang#127572 - tbu-:pr_debug_event_nonpacked, r=jhpratt
rust-lang@8de487fdbd Rollup merge of
rust-lang#124599 - estebank:issue-41708, r=wesleywiser
rust-lang@55256c5a18 Update
dist-riscv64-linux to binutils 2.40
rust-lang@977439d9b8 Use uplifted
`rustc-stable-hash` crate in `rustc_data_structures`
rust-lang@f56b2074c6 solve -> solve/mod
rust-lang@08a2992d6b compiletest: Better
error message for bad `normalize-*` headers
rust-lang@8a50bcbdce Remove extern "wasm"
ABI
rust-lang@a01f49e7f3 check is_ident
before parse_ident
rust-lang@ab56fe2053 Rename
`lazy_cell_consume` to `lazy_cell_into_inner`
rust-lang@27d5db166e Allows
`#[diagnostic::do_not_recommend]` to supress trait impls in suggestions
as well
rust-lang@12ae282987 Fix diagnostic and
add a test for it
rust-lang@df72e478b0 Make sure that
labels are defined after the primary span in diagnostics
rust-lang@0065763950 core: Limit
remaining f16 doctests to x86_64 linux
rust-lang@45ad522e87 Don't mark
`DEBUG_EVENT` struct as `repr(packed)`
rust-lang@0134bd2e67 remove unnecessary
`git` usages
rust-lang@42772e98e0 Address review
comments
rust-lang@3e030b38ef Return the
`otherwise_block` instead of passing it as argument
rust-lang@fc40247c6b Factor out the
"process remaining candidates" cases
rust-lang@8a222ffd6b Don't try to save an
extra block
rust-lang@c5062f7318 Move or-pattern
expansion inside the main part of the algorithm
rust-lang@bff4d213fa Factor out the
special handling of or-patterns
rust-lang@5bf50e66f9 Move a function
rust-lang@53d3e6217b Stabilize
const_cstr_from_ptr (CStr::from_ptr, CStr::count_bytes)
rust-lang@585ca16e0b as_simd: fix comment
to be in line with 507583a (rust-lang#121201)
rust-lang@0f643c449a Ensure tests don't
fail on i586 in CI
rust-lang@ec0c755704 Check that we get
somewhat sane PIDs when spawning with pidfds
rust-lang@3e4e31b7bf more fine-grained
feature-detection for pidfd spawning
rust-lang@0ce361938e document safety
properties of the internal Process::new constructor
rust-lang@6687a3f7da use pidfd_spawn for
faster process creation when pidfds are requested
rust-lang@5c46acac04 document the cvt
methods
rust-lang@0e1c832dbd Update
`platform-support.md` to reflect improvements in returning floats on
32-bit x86
rust-lang@952becc0bd Ensure floats are
returned losslessly by the Rust ABI on 32-bit x86
rust-lang@a1ad6346d6 Add fn allocator
method to rc/sync::Weak. Relax Rc<T>/Arc<T>::allocator to allow unsized
T.
rust-lang@2df4f7dd8c Suggest borrowing on
fn argument that is `impl AsRef`

Co-authored-by: celinval <35149715+celinval@users.noreply.github.com>
@matthiaskrgr matthiaskrgr deleted the rollup-72bqgvp branch September 1, 2024 17:35
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A-query-system Area: The rustc query system (https://rustc-dev-guide.rust-lang.org/query.html) A-testsuite Area: The testsuite used to check the correctness of rustc merged-by-bors This PR was explicitly merged by bors. O-unix Operating system: Unix-like rollup A PR which is a rollup S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. 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-infra Relevant to the infrastructure 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. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)
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