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Rollup of 6 pull requests #110978

Merged
merged 13 commits into from
Apr 29, 2023
Merged

Rollup of 6 pull requests #110978

merged 13 commits into from
Apr 29, 2023

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Dylan-DPC
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Successful merges:

Failed merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

compiler-errors and others added 13 commits April 26, 2023 21:54
@compiler-errors
Clear response values for overflow in new solver
5fa8209
@compiler-errors
Split out make_ambiguous_response_no_constraints
ee89421
@heiher
Bump libffi-sys to 2.3.0
c7b7248
include source error for LoadLibraryExW
24adb1f
@compiler-errors
Make sure that signatures aren't accidental refinements
33871c9
@cjgillot
Make drop_flags an IndexVec.
7f26191
@compiler-errors
Don't duplicate anonymous lifetimes for async fn in traits
4e05cfb
@Dylan-DPC
Rollup merge of rust-lang#110614 - compiler-errors:new-solver-overflo…
6da62a4 
…w-response, r=lcnr

Clear response values for overflow in new solver

When we have an overflow, return a trivial query response. This fixes an ICE with the code described in rust-lang#110544:

```rust
trait Trait {}

struct W<T>(T);

impl<T, U> Trait for W<(W<T>, W<U>)>
where
    W<T>: Trait,
    W<U>: Trait,
{}

fn impls<T: Trait>() {}

fn main() {
    impls::<W<_>>()
}
```

Where, while proving `W<?0>: Trait`, we overflow but still apply the query response of `?0 = (W<?1>, W<?2>)`. Then while re-processing the query to validate that our evaluation result was stable, we get a different query response that looks like `?1 = (W<?3>, W<?4>), ?2 = (W<?5>, W<?6>)`, and so we trigger the ICE.

Also, by returning a trivial query response we also avoid the infinite-loop/OOM behavior of the old solver.

r? ``@lcnr``
@Dylan-DPC
Rollup merge of rust-lang#110894 - loongarch-rs:bump-libffi-sys, r=Ma…
55df5c8 
…rk-Simulacrum

Bump libffi-sys to 2.3.0

Bump libffi-sys to 2.3.0 that includes LoongArch support.

Thanks

Related: rust-lang/miri#2858
@Dylan-DPC
Rollup merge of rust-lang#110932 - sameer:master, r=michaelwoerister
650f8fd 
include source error for LoadLibraryExW

In rust-lang#107595, we added retry behavior for LoadLibraryExW on Windows. If it fails we do not print the underlying error that Windows returned. This made rust-lang#110889 a little harder to debug.

In this PR I am adding the source error in the message if it is available.
@Dylan-DPC
Rollup merge of rust-lang#110958 - compiler-errors:stdlib-refinement,…
339786e 
… r=cuviper

Make sure that some stdlib method signatures aren't accidental refinements

In the process of implementing https://rust-lang.github.io/rfcs/3245-refined-impls.html, I found a bunch of stdlib implementations that accidentally "refined" their method signatures by dropping  (unnecessary) bounds.

This isn't currently a problem, but may become one if/when method  signature refining is stabilized in the future. Shouldn't hurt to make these signatures a bit more accurate anyways.

NOTE (just to be clear lol): This does not affect behavior at all, since we don't actually take advantage of refined implementations yet!
@Dylan-DPC
Rollup merge of rust-lang#110962 - cjgillot:no-hash-drops, r=compiler…
7721c73 
…-errors

Make drop_flags an IndexVec.

Fixes rust-lang#91943
@Dylan-DPC
Rollup merge of rust-lang#110965 - compiler-errors:anon-lt-dupe-oops,…
81910a1 
… r=cjgillot

Don't duplicate anonymous lifetimes for async fn in traits

`record_lifetime_params_for_async` needs to be called outside of the scope of the function, or else it'll end up collecting anonymous lifetimes twice (those on the function and those within the `AnonymousCreateParameter` rib). This matches how `record_lifetime_params_for_async` is being used for functions with bodies below.

This fixes (partially) rust-lang#110963 when the lifetimes are late-bound, but does not do so when the lifetimes are early-bound (as seen from the known-bug that I added).
@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. 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. WG-trait-system-refactor The Rustc Trait System Refactor Initiative rollup A PR which is a rollup labels Apr 29, 2023
@Dylan-DPC
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@bors r+ rollup=never p=5

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bors commented Apr 29, 2023

📌 Commit 81910a1 has been approved by Dylan-DPC

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 Apr 29, 2023
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bors commented Apr 29, 2023

⌛ Testing commit 81910a1 with merge af2c7e0...

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bors commented Apr 29, 2023

☀️ Test successful - checks-actions
Approved by: Dylan-DPC
Pushing af2c7e0 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Apr 29, 2023
@bors bors merged commit af2c7e0 into rust-lang:master Apr 29, 2023
@rustbot rustbot added this to the 1.71.0 milestone Apr 29, 2023
@rust-timer
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📌 Perf builds for each rolled up PR:

PR# Perf Build Sha
#110965 6b89a7fea2bc1f52a85662752ec0252e09bbd93a
#110962 aa51bcb344cab8d55822fca30c259dd4a12eae3e
#110958 1daec5b35df1234d58660a402c3c6dc6aefb7c8c
#110932 cea335db121a63999f4ae0daf303a64e63ece963
#110894 0ea810d70c56e51eb6ca394fc6778c5c36dcfe76
#110614 edfe440d205b68769b066c44a7af7d94b1b47997

previous master: 572c0d553f

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

@rust-timer
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Finished benchmarking commit (af2c7e0): comparison URL.

Overall result: ❌✅ regressions and improvements - ACTION NEEDED

Next Steps: If you can justify the regressions found in this perf run, please indicate this with @rustbot label: +perf-regression-triaged along with sufficient written justification. If you cannot justify the regressions please open an issue or create a new PR that fixes the regressions, add a comment linking to the newly created issue or PR, and then add the perf-regression-triaged label to this PR.

@rustbot label: +perf-regression
cc @rust-lang/wg-compiler-performance

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)		 0.3% [0.3%, 0.3%] 2
Improvements ✅
(primary)		 -0.3% [-0.3%, -0.3%] 2
Improvements ✅
(secondary)		 -0.4% [-0.4%, -0.4%] 1
All ❌✅ (primary) -0.3% [-0.3%, -0.3%] 2

Max RSS (memory usage)

Results

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)		 3.2% [3.2%, 3.2%] 1
Regressions ❌
(secondary)		 - - 0
Improvements ✅
(primary)		 -0.7% [-0.7%, -0.7%] 1
Improvements ✅
(secondary)		 - - 0
All ❌✅ (primary) 1.2% [-0.7%, 3.2%] 2

Cycles

Results

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
Regressions ❌
(secondary)		 - - 0
Improvements ✅
(primary)		 -3.9% [-3.9%, -3.9%] 1
Improvements ✅
(secondary)		 - - 0
All ❌✅ (primary) -3.9% [-3.9%, -3.9%] 1

@rustbot rustbot added the perf-regression Performance regression. label Apr 29, 2023
@pnkfelix
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pnkfelix commented May 3, 2023

  • regressions are solely to secondary externs benchmark.
  • its so minor. marking as triaged.

@rustbot label: perf-regression-triaged

@rustbot rustbot added the perf-regression-triaged The performance regression has been triaged. label May 3, 2023
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merged-by-bors This PR was explicitly merged by bors. perf-regression Performance regression. perf-regression-triaged The performance regression has been triaged. 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-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. WG-trait-system-refactor The Rustc Trait System Refactor Initiative
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@Dylan-DPC @bors @rust-timer @pnkfelix @rustbot @compiler-errors @heiher @cjgillot