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Rollup of 7 pull requests #127956

Merged
merged 27 commits into from
Jul 19, 2024
Merged

Rollup of 7 pull requests #127956

merged 27 commits into from
Jul 19, 2024

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tgross35
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Successful merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

ratmice and others added 27 commits February 23, 2024 17:47
…teral

```
error[E0533]: expected value, found struct variant `E::Empty3`
  --> $DIR/empty-struct-braces-expr.rs:18:14
   |
LL |     let e3 = E::Empty3;
   |              ^^^^^^^^^ not a value
   |
help: you might have meant to create a new value of the struct
   |
LL |     let e3 = E::Empty3 {};
   |                        ++
```
```
error[E0533]: expected value, found struct variant `E::V`
  --> $DIR/struct-literal-variant-in-if.rs:10:13
   |
LL |     if x == E::V { field } {}
   |             ^^^^ not a value
   |
help: you might have meant to create a new value of the struct
   |
LL |     if x == (E::V { field }) {}
   |             +              +
```
```
error[E0618]: expected function, found enum variant `Enum::Unit`
  --> $DIR/suggestion-highlights.rs:15:5
   |
LL |     Unit,
   |     ---- enum variant `Enum::Unit` defined here
...
LL |     Enum::Unit();
   |     ^^^^^^^^^^--
   |     |
   |     call expression requires function
   |
help: `Enum::Unit` is a unit enum variant, and does not take parentheses to be constructed
   |
LL -     Enum::Unit();
LL +     Enum::Unit;
   |
```
```
error[E0599]: no variant or associated item named `tuple` found for enum `Enum` in the current scope
  --> $DIR/suggestion-highlights.rs:36:11
   |
LL | enum Enum {
   | --------- variant or associated item `tuple` not found for this enum
...
LL |     Enum::tuple;
   |           ^^^^^ variant or associated item not found in `Enum`
   |
help: there is a variant with a similar name
   |
LL |     Enum::Tuple(/* i32 */);
   |           ~~~~~~~~~~~~~~~~;
   |
```
…le struct type

```
error[E0560]: struct `S` has no field named `x`
  --> $DIR/nested-non-tuple-tuple-struct.rs:8:19
   |
LL | pub struct S(f32, f32);
   |            - `S` defined here
...
LL |     let _x = (S { x: 1.0, y: 2.0 }, S { x: 3.0, y: 4.0 });
   |                   ^ field does not exist
   |
help: `S` is a tuple struct, use the appropriate syntax
   |
LL |     let _x = (S(/* f32 */, /* f32 */), S { x: 3.0, y: 4.0 });
   |               ~~~~~~~~~~~~~~~~~~~~~~~
```
In <rust-lang#126922>, the
`binary_asm_labels` lint was added which flags labels such as `0:` and
`1:`. Before that change, LLVM was giving a confusing error on
x86/x86_64 because of an incorrect interpretation.

However, targets other than x86 and x86_64 never had the error message
and have not been a problem. This means that the lint was causing code
that previously worked to start failing (e.g. `compiler_builtins`),
rather than only providing a more clear messages where there has always
been an error.

Adjust the lint to only fire on x86 and x86_64 assembly to avoid this
regression.
The link pointed to a closed issue. Create a new one and point the link
to it.

Also add a help message to hint what change the user could make.

Fixes: rust-lang#127821
The `Option`s within the `ReplaceRange`s within the hashmap are always
`None`. This PR omits them and inserts them when they are extracted from
the hashmap.
It's no shorter than `ret.attrs()`, and `ret.attrs()` is used multiple
times earlier in the function.
This puts it just before the `replace_ranges` initialization, which
makes sense because the two variables are closely related.
Currently in `collect_tokens_trailing_token`, `start_pos` and `end_pos`
are 1-indexed by `replace_ranges` is 0-indexed, which is really
confusing. Making them both 0-indexed makes debugging much easier.
Adding details, clarifying lots of little things, etc. In particular,
the commit adds details of an example. I find this very helpful, because
it's taken me a long time to understand how this code works.
Disable a test that now only passes on x86 and make the link point to
the new (open) LLVM bug.
…ethercote

Handle .init_array link_section specially on wasm

Given that wasm-ld now has support for [.init_array](https://github.com/llvm/llvm-project/blob/8f2bd8ae68883592a333f4bdbed9798d66e68630/llvm/lib/MC/WasmObjectWriter.cpp#L1852), it appears we can easily implement that section by falling through to the normal path rather than taking the typical custom_section path for wasm.

The wasm-ld appears to have a bunch of limitations. Only one static with the `link_section` in a crate or else you hit the fatal error in the link above "only one .init_array section fragment supported". They do not get merged.

You can still call multiple constructors by setting it to an array.

```
unsafe extern "C" fn ctor() {
    println!("foo");
}
#[used]
#[link_section = ".init_array"]
static FOO: [unsafe extern "C" fn(); 2] = [ctor, ctor];
```

Another issue appears to be that if crate *A* depends on crate *B*, but *A* doesn't call any symbols from *B* and *B* doesn't `#[export_name = ...]` any symbols, then crate *B*'s constructor will not be called.  The workaround to this is to provide an exported symbol in crate *B*.
Migrate `macos-fat-archive`, `manual-link` and `archive-duplicate-names` `run-make` tests to rmake

Part of rust-lang#121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).

Please try:

try-job: x86_64-msvc
try-job: aarch64-apple
Tweak suggestions when using incorrect type of enum literal

More accurate suggestions when writing wrong style of enum variant literal:

```
error[E0533]: expected value, found struct variant `E::Empty3`
  --> $DIR/empty-struct-braces-expr.rs:18:14
   |
LL |     let e3 = E::Empty3;
   |              ^^^^^^^^^ not a value
   |
help: you might have meant to create a new value of the struct
   |
LL |     let e3 = E::Empty3 {};
   |                        ++
```
```
error[E0533]: expected value, found struct variant `E::V`
  --> $DIR/struct-literal-variant-in-if.rs:10:13
   |
LL |     if x == E::V { field } {}
   |             ^^^^ not a value
   |
help: you might have meant to create a new value of the struct
   |
LL |     if x == (E::V { field }) {}
   |             +              +
```
```
error[E0618]: expected function, found enum variant `Enum::Unit`
  --> $DIR/suggestion-highlights.rs:15:5
   |
LL |     Unit,
   |     ---- enum variant `Enum::Unit` defined here
...
LL |     Enum::Unit();
   |     ^^^^^^^^^^--
   |     |
   |     call expression requires function
   |
help: `Enum::Unit` is a unit enum variant, and does not take parentheses to be constructed
   |
LL -     Enum::Unit();
LL +     Enum::Unit;
   |
```
```
error[E0599]: no variant or associated item named `tuple` found for enum `Enum` in the current scope
  --> $DIR/suggestion-highlights.rs:36:11
   |
LL | enum Enum {
   | --------- variant or associated item `tuple` not found for this enum
...
LL |     Enum::tuple;
   |           ^^^^^ variant or associated item not found in `Enum`
   |
help: there is a variant with a similar name
   |
LL |     Enum::Tuple(/* i32 */);
   |           ~~~~~~~~~~~~~~~~;
   |
```

Tweak "field not found" suggestion when giving struct literal for tuple struct type:

```
error[E0560]: struct `S` has no field named `x`
  --> $DIR/nested-non-tuple-tuple-struct.rs:8:19
   |
LL | pub struct S(f32, f32);
   |            - `S` defined here
...
LL |     let _x = (S { x: 1.0, y: 2.0 }, S { x: 3.0, y: 4.0 });
   |                   ^ field does not exist
   |
help: `S` is a tuple struct, use the appropriate syntax
   |
LL |     let _x = (S(/* f32 */, /* f32 */), S { x: 3.0, y: 4.0 });
   |               ~~~~~~~~~~~~~~~~~~~~~~~
…g_token-cleanups, r=petrochenkov

`collect_tokens_trailing_token` cleanups

More cleanups I made while understanding the code for processing `cfg_attr`, to fix test failures in rust-lang#124141.

r? `@petrochenkov`
…bzol

Migrate `lto-smoke-c` and `link-path-order` `run-make` tests to rmake

Part of rust-lang#121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).
…y, r=estebank,Urgau

Change `binary_asm_labels` to only fire on x86 and x86_64

In <rust-lang#126922>, the `binary_asm_labels` lint was added which flags labels such as `0:` and `1:`. Before that change, LLVM was giving a confusing error on x86/x86_64 because of an incorrect interpretation.

However, targets other than x86 and x86_64 never had the error message and have not been a problem. This means that the lint was causing code that previously worked to start failing (e.g. `compiler_builtins`), rather than only providing a more clear messages where there has always been an error.

Adjust the lint to only fire on x86 and x86_64 assembly to avoid this regression.

Also update the help message.

Fixes: rust-lang#127821
… r=jieyouxu

[compiletest] Search *.a when getting dynamic libraries on AIX

AIX uses `.a` as dylib suffix. Support it in compiletest.
@rustbot rustbot added A-run-make Area: port run-make Makefiles to rmake.rs A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jul 19, 2024
@rustbot rustbot added 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. rollup A PR which is a rollup labels Jul 19, 2024
@tgross35
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@bors r+ rollup=never

There are a few rollup=never jobs waiting, I won't bump this rollup's priority until the next one gets picked up

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bors commented Jul 19, 2024

📌 Commit 314cf1f has been approved by tgross35

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 19, 2024
@tgross35
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tgross35 commented Jul 19, 2024

@bors p=10

@tgross35
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@bors p=7

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bors commented Jul 19, 2024

⌛ Testing commit 314cf1f with merge 11e5724...

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bors commented Jul 19, 2024

☀️ Test successful - checks-actions
Approved by: tgross35
Pushing 11e5724 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Jul 19, 2024
@bors bors merged commit 11e5724 into rust-lang:master Jul 19, 2024
7 checks passed
@rustbot rustbot added this to the 1.81.0 milestone Jul 19, 2024
@rust-timer
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📌 Perf builds for each rolled up PR:

PR# Message Perf Build Sha
#121533 Handle .init_array link_section specially on wasm 33c7988cd9e26a766fddddc324685431f6b7a64d (link)
#127825 Migrate macos-fat-archive, manual-link and `archive-dup… a239c5609dbd24826aa83820485b1baf31462164 (link)
#127891 Tweak suggestions when using incorrect type of enum literal d151569f34412724736a6e5efe67555b6dafedb5 (link)
#127902 collect_tokens_trailing_token cleanups ad8ee05246a1d768649d218c1803cff22238c78b (link)
#127928 Migrate lto-smoke-c and link-path-order run-make test… fb99d59e80c1e924214e6809567b0f8aa6d53f02 (link)
#127935 Change binary_asm_labels to only fire on x86 and x86_64 7716b9a0f952f4e183d5e4a21238698ca3fdcdb1 (link)
#127953 [compiletest] Search *.a when getting dynamic libraries on … 5606ade33729015d5878e88325c8f8bad3fbbfb1 (link)

previous master: 8c3a94a1c7

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 (11e5724): comparison URL.

Overall result: ❌ regressions - 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)
0.3% [0.3%, 0.3%] 1
Regressions ❌
(secondary)
- - 0
Improvements ✅
(primary)
- - 0
Improvements ✅
(secondary)
- - 0
All ❌✅ (primary) 0.3% [0.3%, 0.3%] 1

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

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

Bootstrap: 770.782s -> 769.908s (-0.11%)
Artifact size: 328.81 MiB -> 328.84 MiB (0.01%)

@tgross35 tgross35 deleted the rollup-8ten7pk branch July 19, 2024 19:05
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A-run-make Area: port run-make Makefiles to rmake.rs A-testsuite Area: The testsuite used to check the correctness of rustc merged-by-bors This PR was explicitly merged by bors. 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.
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9 participants