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Migrate `run-make/rustdoc-error-lines` to new `rmake.rs`
Part of https://github.com/rust-lang/rust/issues/121876.
There was a weird naming inconsistency with `input`/`output`. A few tests write `.arg("-o").arg(path)` and the `output` method was actually the command output. So instead, I renamed the original `output` into `command_output` so that I could create the `output` method with the expected effect (and updated the tests to use it too).
EDIT: The first two commits come from https://github.com/rust-lang/rust/pull/124711. Some weird things happened recently pparently. ^^'
r? `@jieyouxu`
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Move some stdlib tests from `tests/ui` to `library/std/tests`
Related to #99417
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Rewrite `rustdoc-determinism` test in Rust
Rewrite the `rustdoc-determinism` test from #121876.
r? `@jieyouxu`
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rustc: document the jobserver
Explicitly document that the jobserver may be used by `rustc`, as well as recommend the `+` indicator for integration of `rustc` into GNU Make.
In particular, show the warning to increase the chances that this document is found when searching for solutions online.
In addition, add a note about the issue with GNU Make 4.3 since it is important that users realize they should do this even if they do not expect parallelism from `rustc`.
Finally, show how to workaround the issue of `$(shell ...)` calls in recursive Make (which e.g. was needed for the Linux kernel).
The GNU Make 4.4 case under `--jobserver-style=pipe` is not added since it got fixed after Rust 1.76.0 already (i.e. `rustc` will not warn if it finds the negative file descriptors).
From: https://github.com/rust-lang/rust/issues/120515
Cc: `@petrochenkov` `@belovdv` `@weihanglo` `@bjorn3`
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v2: To be able to use tab characters for the Make examples, add `<!-- ignore-tidy-{check} -->` support to `tidy`.
v3: Added "Integration with build systems" section to hold the GNU Make one. Added "by clearing the `MAKEFLAGS` variable". Added "aforementioned" so that it is clear we are talking about the warning above.
v4: Added CMake subsection. Added a note that `rustc` may be affected by other flags, e.g. `CARGO_MAKEFLAGS`.
v5: Added that `rustc` will choose the number of jobs if a jobserver is not passed.
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Port repr128-dwarf run-make test to rmake
This PR ports the repr128-dwarf run-make test to rmake, using the `gimli` crate instead of the `llvm-dwarfdump` command.
Note that this PR changes `rmake.rs` files to be compiled with the 2021 edition (previously no edition was passed to `rustc`, meaning they were compiled with the 2015 edition). This means that `panic!("{variable}")` will now work as expected in `rmake.rs` files (there's already a usage in the [wasm-symbols-not-exported test](https://github.com/rust-lang/rust/blob/aca749eefceaed0cda19a7ec5e472fce9387bc00/tests/run-make/wasm-symbols-not-exported/rmake.rs#L34) that this will fix).
Tracking issue: #121876
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Remove direct dependencies on lazy_static, once_cell and byteorder
The relevant functionality of all three crates is now available and stable in the standard library, i.e. `std::sync::OnceLock` and `{integer}::to_le_bytes`. I think waiting for `LazyLock` (#109736) would give marginally more concise code, but not by much.
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The functionality of all three crates is now available in the standard library.
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Port run-make `--print=native-static-libs` to rmake.rs
This PR port the run-make `--print=native-static-libs` test to rmake.rs
The dedup was really awful in the `Makefile`, I'm glad to finally have a proper dedup detection for this.
Related to https://github.com/rust-lang/rust/issues/121876
r? `@jieyouxu`
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uses a `ProofTreeVisitor` to look into nested
goals when looking at the pending obligations
during hir typeck. Used by closure signature
inference, coercion, and for async functions.
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Rewrite the `no-input-file.stderr` test in Rust and support diff
Rewrite the `no-input-file.stderr` test from #121876.
Use the `similar` lib to replace the `diff` command.
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Improve diagnostic for unknown `--print` request
This PR improves the diagnostic when encountering a unknown `--print` request.
It also moves the run-make test to a simple UI test.
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Implement `PROBLEMATIC_CONSTS` generalization
You forgot that `A≈4`, `B≈8`, and `E≈3` and some more constants.
The new `PROBLEMATIC_CONSTS` was generated using this code:
```py
from functools import reduce
def generate_problems(consts: list, letter_digit: dict):
for const in consts:
problem = reduce(lambda string, rep: string.replace(*reversed(rep)), ['%X' % const, *letter_digit.items()])
indexes = [index for index, c in enumerate(problem) if c in letter_digit.keys()]
for i in range(1 << len(indexes)):
yield int(''.join(letter_digit[c] if index in indexes and (i >> indexes.index(index)) & 1 else c for index, c in enumerate(problem)), 0x10)
problems = generate_problems(
[
# Old PROBLEMATIC_CONSTS:
184594741, 2880289470, 2881141438, 2965027518, 2976579765, 3203381950, 3405691582, 3405697037,
3735927486, 3735932941, 4027431614, 4276992702,
# More of my own:
195934910, 252707358, 762133, 179681982, 173390526
],
{
'A': '4',
'B': '8',
'E': '3',
}
)
# print(list(problems)) # won't use that to print formatted
from itertools import islice
while len(cur_problems := list(islice(problems, 8))):
print(' ', end='')
print(*cur_problems, sep=', ', end='')
print(',')
```
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mainly for testing
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* add `rustc-hash` to cargo manifest
* use `FxHashMap`
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Co-authored-by: David Tolnay <dtolnay@gmail.com>
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also make sure that rust-lld can be disabled via linker features, even
when enabled by default by the target spec
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also check that turning off the linker feature does not use lld
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compiletest ice tracking
see https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/where.20to.20mass-add.20known.20ices.20.2F.20merging.20glacier.20into.20rust/near/429082963
This will allow us to sunset most of https://github.com/rust-lang/glacier
The rustc ices will be tracked directly inside the rust testsuite
There are a couple of .sh tests remaining that I have not ported over yet.
This adds `tests/crashes`, a file inside this directory MUST ice, otherwise it is considered test-fail.
This will be used to track ICEs from glacier and the bugtracker.
When someones pr accidentally fixes one of these ICEs, they can move the test from `crashes` into `ui` for example.
I also added a new tidy lint that warns when a test inside `tests/crashes` does not have a `//@ known-bug: ` line
the env var `COMPILETEST_VERBOSE_CRASHES` can be set to get exit code, stderr and stdout of a crash-test to aid debugging/adding tests.
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"//@ known-bug: "
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reduce tidy overheads in run-make checks
This change makes tidy to handle run-make checks with a single iteration, avoiding the need for multiple iterations and copying.
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