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Rollup of 9 pull requests #111297

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@rustbot modify labels: rollup

Create a similar rollup

Zalathar and others added 19 commits April 30, 2023 11:05
The tests that were in `src/test/` have been moved to `tests/`, so the paths
given by the suggestion tool should reflect this.
We've been relying on a custom patch to add `MCSubtargetInfo::getCPUTable`
for `rustc --print target-cpus`, and just printing that it's not supported
on external LLVM builds. LLVM `main` now has `getAllProcessorDescriptions`
that can replace ours, so now we try to use that. In addition, the fallback
path can at least print the native and default cpu options.

There were also some mismatches in the function signatures here between
`LLVM_RUSTLLVM` and otherwise; this is now mitigated by sharing these
functions and only using cpp to adjust the function bodies.
…mulacrum

Fix the test directories suggested by `./x.py suggest`

It seems that these paths were correct when rust-lang#106249 was being written, but since then rust-lang#106458 has been merged (moving `src/test/` to `tests/`), making the tool's suggestions incorrect.
…imulacrum

Make more ConstProp tests unit.
…p-scripts, r=Mark-Simulacrum

check bootstrap scripts syntax

Fails bootstrapping if `x`/`x.ps1` scripts are not valid. Currently, it keeps executing lines until the invalid one.
…henkov

Diagnostic args are still args if they're documented

Fixes https://rust-lang.zulipchat.com/#narrow/stream/336883-i18n/topic/.60.23.5Bderive.28Diagnostic.29.5D.60.20works.20badly.20with.20docs/near/355597997

There's a lot of really strange code incongruencies between `Diagnostic` and `Subdiagnostic` derive. Perhaps those macros need some more overhaul, but I didn't really want to do it today.
…acrum

Fix instrument-coverage tests by using Python to sort instantiation groups

rust-lang#110942 was intended to fix a set of `-Cinstrument-coverage` tests, but it ended up silently *breaking* those tests on Linux, for annoying reasons detailed at rust-lang#111171.

Dealing with `diff --ignore-matching-lines` across multiple platforms has been such a hassle that I've instead written a simple Python script that can detect instantiation groups in the output of `llvm-cov show`, and sort them in a predictable order so that they can be used as snapshots for an ordinary invocation of `diff`.

This approach should be much less error-prone, because it can't accidentally ignore the wrong lines, and any unforeseen problems will tend to result in a Python exception or a failing diff.
Output LLVM optimization remark kind in `-Cremark` output

Since rust-lang#90833, the optimization remark kind has not been printed. Therefore it wasn't possible to easily determine from the log (in a programmatic way) which remark kind was produced. I think that the most interesting remarks are the missed ones, which can lead users to some code optimization.

Maybe we could also change the format closer to the "old" one:
```
note: optimization remark for tailcallelim at /checkout/src/libcore/num/mod.rs:1:0: marked this call a tail call candidate
```

I wanted to programatically parse the remarks so that they could work e.g. with https://github.com/OfekShilon/optview2. However, now that I think about it, probably the proper solution is to tell rustc to output them to YAML and then use the YAML as input for the opt remark visualization tools. The flag for enabling this does not seem to work though (rust-lang#96705 (comment)).

Still I think that it's good to output the remark kind anyway, it's an important piece of information.

r? `@tmiasko`
asm: loongarch64: Implementation of clobber_abi

r? `@Amanieu`
…Simulacrum

Expand the LLVM coverage of `--print target-cpus`

We've been relying on a custom patch to add `MCSubtargetInfo::getCPUTable`
for `rustc --print target-cpus`, and just printing that it's not supported
on external LLVM builds. LLVM `main` now has `getAllProcessorDescriptions`
that can replace ours, so now we try to use that. In addition, the fallback
path can at least print the native and default cpu options.

There were also some mismatches in the function signatures here between
`LLVM_RUSTLLVM` and otherwise; this is now mitigated by sharing these
functions and only using cpp to adjust the function bodies.
Check arguments length in trivial diagnostic lint

Fixes rust-lang#111280
@rustbot rustbot added A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic 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. rollup A PR which is a rollup labels May 6, 2023
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@bors r rollup=never p=9

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bors commented May 6, 2023

📌 Commit c56f165 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 May 6, 2023
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The job x86_64-gnu-llvm-14 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)
diff of stderr:

18              Cow<'a, str>
19            and 42 others
20 note: required by a bound in `DiagnosticBuilder::<'a, G>::set_arg`
-   --> $COMPILER_DIR/rustc_errors/src/diagnostic_builder.rs:747:5
    --> $COMPILER_DIR/rustc_errors/src/diagnostic_builder.rs:748:5
22    = note: this error originates in the macro `forward` (in Nightly builds, run with -Z macro-backtrace for more info)
23 
24 error[E0277]: the trait bound `NotIntoDiagnosticArg: IntoDiagnosticArg` is not satisfied

The actual stderr differed from the expected stderr.
Actual stderr saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field/diagnostic-derive-doc-comment-field.stderr
To update references, rerun the tests and pass the `--bless` flag
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args session-diagnostic/diagnostic-derive-doc-comment-field.rs`

error: 1 errors occurred comparing output.
status: exit status: 1
Build completed unsuccessfully in 0:11:46
command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field.rs" "-Zthreads=1" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui-fulldeps=fake-test-src-base" "--emit" "metadata" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui-fulldeps/session-diagnostic/diagnostic-derive-doc-comment-field/auxiliary"
stdout: none
--- stderr -------------------------------
error[E0277]: the trait bound `NotIntoDiagnosticArg: IntoDiagnosticArg` is not satisfied
  --> fake-test-src-base/session-diagnostic/diagnostic-derive-doc-comment-field.rs:35:10
LL | #[derive(Diagnostic)]
   |          ---------- required by a bound introduced by this call
...
...
LL |     arg: NotIntoDiagnosticArg,
   |          ^^^^^^^^^^^^^^^^^^^^ the trait `IntoDiagnosticArg` is not implemented for `NotIntoDiagnosticArg`
   |
   = help: the following other types implement trait `IntoDiagnosticArg`:
             &'a T
             &'a std::path::Path
             &'a str
             &rustc_target::spec::TargetTriple
             Box<(dyn std::error::Error   'static)>
             CString
             CguReuse
             Cow<'a, str>
           and 42 others
note: required by a bound in `DiagnosticBuilder::<'a, G>::set_arg`
  --> /rustc/FAKE_PREFIX/compiler/rustc_errors/src/diagnostic_builder.rs:748:5
   = note: this error originates in the macro `forward` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0277]: the trait bound `NotIntoDiagnosticArg: IntoDiagnosticArg` is not satisfied
  --> fake-test-src-base/session-diagnostic/diagnostic-derive-doc-comment-field.rs:45:10
LL | #[derive(Subdiagnostic)]
   |          ------------- required by a bound introduced by this call
...
...
LL |     arg: NotIntoDiagnosticArg,
   |          ^^^^^^^^^^^^^^^^^^^^ the trait `IntoDiagnosticArg` is not implemented for `NotIntoDiagnosticArg`
   |
   = help: the following other types implement trait `IntoDiagnosticArg`:
             &'a T
             &'a std::path::Path
             &'a str
             &rustc_target::spec::TargetTriple
             Box<(dyn std::error::Error   'static)>
             CString
             CguReuse
             Cow<'a, str>
note: required by a bound in `Diagnostic::set_arg`
  --> /rustc/FAKE_PREFIX/compiler/rustc_errors/src/diagnostic.rs:964:5

error: aborting due to 2 previous errors

@matthiaskrgr matthiaskrgr deleted the rollup-fiyzboj branch March 16, 2024 18:19
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