Alex Crichton [Mon, 11 Feb 2019 15:46:04 +0000 (07:46 -0800)]
rustc: Implement incremental "fat" LTO
Currently the compiler will produce an error if both incremental
compilation and full fat LTO is requested. With recent changes and the
advent of incremental ThinLTO, however, all the hard work is already
done for us and it's actually not too bad to remove this error!
This commit updates the codegen backend to allow incremental full fat
LTO. The semantics are that the input modules to LTO are all produce
incrementally, but the final LTO step is always done unconditionally
regardless of whether the inputs changed or not. The only real
incremental win we could have here is if zero of the input modules
changed, but that's so rare it's unlikely to be worthwhile to implement
such a code path.
bors [Tue, 12 Feb 2019 00:44:24 +0000 (00:44 +0000)]
Auto merge of #58180 - davidtwco:issue-58053, r=estebank
Fix span for closure return type when annotated.
Fixes #58053.
This PR adjusts the span used to label closure return types so that
if the user specifies the return type, i.e. `|_| -> X {}` instead of
`|_| {}`, we correctly highlight all of it and not just the last
character.
David Wood [Mon, 11 Feb 2019 18:29:10 +0000 (19:29 +0100)]
Only suggest imports if not imported.
This commit modifies name resolution error reporting so that if a name
is in scope and has been imported then we do not suggest importing it.
This can occur when we add a label about constructors not being visible
due to private fields. In these cases, we know that the struct/variant
has been imported and we should silence any suggestions to import the
struct/variant.
Oliver Scherer [Sun, 3 Feb 2019 12:57:03 +0000 (13:57 +0100)]
Ease the transition to requiring features by just warning if there's no feature list
while we could make this change (it's all unstable after all), there are crates.io crates that use the feature and that the compiler depends upon. We can instead roll out this feature while still supporting the old way.
Mark Rousskov [Wed, 6 Feb 2019 10:37:43 +0000 (11:37 +0100)]
Never build rustdoc in stage 0
When a request for rustdoc is passed for stage 0, x.py build --stage 0
src/tools/rustdoc or ensure(tool::Rustdoc { .. }) with top_stage = 0, we
return the rustdoc for that compiler (i.e., the beta rustdoc).
bors [Mon, 11 Feb 2019 10:34:09 +0000 (10:34 +0000)]
Auto merge of #56645 - pietroalbini:fix-unused-imports, r=estebank
Initial implementation of rustfixable unused_imports lint
This PR adds the initial implementation of rustfixable `unused_imports` lint. The implementation works, but rustfix is not able to apply all the suggestions until https://github.com/rust-lang/rust/issues/53934 is fixed. It also needs https://github.com/rust-lang/rust/pull/58296 to hide the suggested note since it's really useless.
cc https://github.com/rust-lang/rust/issues/47888
<details><summary><code>cargo fix</code> in action on the <code>unused_imports</code> lint</summary>
* Replace util::without_prefix with Path::strip_prefix rust-lang/cargo#6620
* keep track of crates that are whitelisted to be used even if yanked rust-lang/cargo#6611
* Fix default DYLD_FALLBACK_LIBRARY_PATH on MacOS. rust-lang/cargo#6625
* Bail when trying to run "test --doc --no-run" rust-lang/cargo#6628
* In cargo test's help, add that examples are built rust-lang/cargo#6619
* Extract & re-use filter_targets in cargo_compile rust-lang/cargo#6621
* Test cleanup: remove unnecessary with_status(0) rust-lang/cargo#6630
* Fix run's help message rust-lang/cargo#6631
* Some updates to bash completion. rust-lang/cargo#6644
* Introduce Source::download_now rust-lang/cargo#6637
* Switch from unused_imports to deprecated to test unfixable warnings rust-lang/cargo#6649
bors [Sun, 10 Feb 2019 22:35:36 +0000 (22:35 +0000)]
Auto merge of #58361 - GuillaumeGomez:rollup, r=GuillaumeGomez
Rollup of 16 pull requests
Successful merges:
- #57259 (Update reference of rlibc crate to compiler-builtins crate)
- #57740 (Use `to_ne_bytes` for converting IPv4Addr to octets)
- #57926 (Tiny expansion to docs for `core::convert`.)
- #58157 (Add Cargo.lock automatically adding message)
- #58203 (rustdoc: display sugared return types for async functions)
- #58243 (Add trait alias support in rustdoc)
- #58262 (Add #[must_use] message to Fn* traits)
- #58295 (std::sys::unix::stdio: explain why we do into_raw)
- #58297 (Cleanup JS a bit)
- #58317 (Some writing improvement, conciseness of intro)
- #58324 (miri: give non-generic functions a stable address)
- #58332 (operand-to-place copies should never be overlapping)
- #58345 (When there are multiple filenames, print what got interpreted as filenames)
- #58346 (rpath computation: explain why we pop())
- #58350 (Fix failing tidy (line endings on Windows))
- #58352 (miri value visitor: use `?` in macro)
Guillaume Gomez [Sun, 10 Feb 2019 20:45:22 +0000 (21:45 +0100)]
Rollup merge of #58345 - RalfJung:2nd-filename, r=matthewjasper
When there are multiple filenames, print what got interpreted as filenames
I have written code that crafts command lines for rustc, and when I get "multiple input filenames provided" it can be quite hard to figure out where in this long list of arguments the mistake is hiding. Probably I passed an argument to a flag that does not expect an argument, but which flag would that be?
This changes the error message to print the first two filenames, to make it easier to debug what is going on.
Guillaume Gomez [Sun, 10 Feb 2019 20:45:09 +0000 (21:45 +0100)]
Rollup merge of #57926 - icefoxen:test-doc-pr, r=frewsxcv
Tiny expansion to docs for `core::convert`.
This is not really significant, accept or reject as you wish. I just want to make sure I understand how the PR process works and that I'm doing it right before doing a bigger one for #33417.
Guillaume Gomez [Sun, 10 Feb 2019 20:45:08 +0000 (21:45 +0100)]
Rollup merge of #57740 - JakubOnderka:ipv4addr-to_ne_bytes, r=scottmcm
Use `to_ne_bytes` for converting IPv4Addr to octets
It is easier and it should be also faster, because [`to_ne_bytes`](https://doc.rust-lang.org/std/primitive.u32.html#method.to_ne_bytes) just calls `mem::transmute`.
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