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Rebase LLVM onto 11.0.0 final
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r=nikomatsakis
Replace tuple of infer vars for upvar_tys with single infer var
This commit allows us to decide the number of captures required after
completing capture ananysis, which is required as part of implementing
RFC-2229.
closes https://github.com/rust-lang/project-rfc-2229/issues/4
r? `@nikomatsakis`
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Detect configuration for LLVM during setup
This is a first draft to address #77579, setting `download-ci-llvm` to true on Linux, but I could also implement the `if-available` setting mentioned in the issue.
On other platforms I was thinking about using [the which crate](https://crates.io/crates/which), if adding a dependency on it is considered okay of course, to detect the presence of `llvm-config` in the path, and use it if found. Still a work in progress of course.
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Update books
## reference
5 commits in 56a13c082ee90736c08d6abdcd90462517b703d3..1b78182e71709169dc0f1c3acdc4541b6860e1c4
2020-09-14 23:20:16 -0700 to 2020-10-11 13:53:47 -0700
- Specify that SSE4.1 includes SSSE3 instead of SSE3 (rust-lang-nursery/reference#892)
- Fix mutable expressions that can be dereferenced (rust-lang-nursery/reference#890)
- Fix grammar in memory model (rust-lang-nursery/reference#889)
- Add style checks. (rust-lang-nursery/reference#886)
- Add description for LUB Coercion (rust-lang-nursery/reference#808)
## book
1 commits in cb28dee95e5e50b793e6ba9291c5d1568d3ad72e..451a1e30f2dd137aa04e142414eafb8d05f87f84
2020-09-09 10:06:00 -0500 to 2020-10-05 09:11:18 -0500
- clarify description of when ? can be used (rust-lang/book#2471)
## rust-by-example
1 commits in 7d3ff1c12db08a847a57a054be4a7951ce532d2d..152475937a8d8a1f508d8eeb57db79139bc803d9
2020-09-28 15:54:25 -0300 to 2020-10-09 09:29:50 -0300
- Add 1.45.0 cast documentation (rust-lang/rust-by-example#1384)
## embedded-book
2 commits in dd310616308e01f6cf227f46347b744aa56b77d9..79ab7776929c66db83203397958fa7037d5d9a30
2020-09-26 08:54:08 +0000 to 2020-10-12 08:00:05 +0000
- llvm-objdump: Use two hyphens in flags to objdump (rust-embedded/book#270)
- Start/hardware: clarify which file needs tweaking (rust-embedded/book#266)
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Document -Z codegen-backend in the unstable book
### [Rendered](https://github.com/XAMPPRocky/rust/blob/codegen-backend-docs/src/doc/unstable-book/src/compiler-flags/codegen-backend.md)
Companion PR to #77933 tracking issue.
cc @bjorn3
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Include aarch64-pc-windows-msvc in the dist manifests
r? @ehuss
/cc @pietroalbini @Mark-Simulacrum
#72881
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Provide better documentation and help messages for x.py setup
Closes: #77861
I have split this up into tiny comments because I find it clearer this way. Feel free to squash it.
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Check html comments
Part of #67799.
cc @ollie27
r? @jyn514
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Allow ascii whitespace char for doc aliases
Fixes issue from https://github.com/rust-lang/rust/issues/76705#issuecomment-703123847
cc @lopopolo @ollie27
r? @jyn514
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EOF is not an error; it just causes read_line to produce "".
Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
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We need a fresh input buffer each time, or we reuse the previous
data (since `read_line` appends).
Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
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We understand these profile names because we use .to_str().
Mention them in the question.
Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
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Co-authored-by: Joshua Nelson <joshua@yottadb.com>
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Put all()'s otuput in the order we want to print things in, and add a
comment about why they are in this order. Provide purpose() and
all_for_help(). Use these things everywhere.
Move all the abbrev character ("a", "b", etc.) processing into
interactive_path.
No functional change.
Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
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Add some regression tests
They're fixed since nightly-2020-10-07:
Closes #52843
Closes #53448
Closes #54108
Closes #65581
Closes #65934
Closes #70292
Closes #71443
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Rollup of 8 pull requests
Successful merges:
- #77765 (Add LLVM flags to limit DWARF version to 2 on BSD)
- #77788 (BTreeMap: fix gdb provider on BTreeMap with ZST keys or values)
- #77795 (Codegen backend interface refactor)
- #77808 (Moved the main `impl` for FnCtxt to its own file.)
- #77817 (Switch rustdoc from `clean::Stability` to `rustc_attr::Stability`)
- #77829 (bootstrap: only use compiler-builtins-c if they exist)
- #77870 (Use intra-doc links for links to module-level docs)
- #77897 (Move `Strip` into a separate rustdoc pass)
Failed merges:
- #77879 (Provide better documentation and help messages for x.py setup)
- #77902 (Include aarch64-pc-windows-msvc in the dist manifests)
r? `@ghost`
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Move `Strip` into a separate rustdoc pass
Just something which was bothering me lately. :)
r? @jyn514
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bootstrap: only use compiler-builtins-c if they exist
The assignment of `features` above was added in rust-lang#60981, but
never used. Presumably the intent was to replace the string literal here
with it.
While I'm in the area, `compiler_builtins_c_feature` doesn't need to be
a `String`.
I'm not entirely sure of a great way to locally test this -- `./x.py test`
passed on my machine, but 🤷♂️.
r? @alexcrichton
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Switch rustdoc from `clean::Stability` to `rustc_attr::Stability`
This gives greater type safety and is less work to maintain on the rustdoc end. It also makes rustdoc more consistent with rustc.
Noticed this while working on https://github.com/rust-lang/rust/issues/76998.
- Remove `clean::Stability` in favor of `rustc_attr::Stability`
- Remove `impl Clean for Stability`; it's no longer necessary
r? @GuillaumeGomez
cc @petrochenkov
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Codegen backend interface refactor
This moves several things away from the codegen backend to rustc_interface. There are a few behavioral changes where previously the incremental cache (incorrectly) wouldn't get finalized, but now it does. See the individual commit messages.
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BTreeMap: fix gdb provider on BTreeMap with ZST keys or values
Avoid error when gdb is asked to inspect a BTreeMap or BTreeSet with a zero-sized type as key or value. And clean up.
r? @Mark-Simulacrum
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Refactor AST pretty-printing to allow skipping insertion of extra parens
Fixes #75734
Makes progress towards #43081
Unblocks PR #76130
When pretty-printing an AST node, we may insert additional parenthesis
to ensure that precedence is properly preserved in code we output.
However, the proc macro implementation relies on comparing a
pretty-printed AST node to the captured `TokenStream`. Inserting extra
parenthesis changes the structure of the reparsed `TokenStream`, making
the comparison fail.
This PR refactors the AST pretty-printing code to allow skipping the
insertion of additional parenthesis. Several freestanding methods are
moved to trait methods on `PrintState`, which keep track of an internal
`insert_extra_parens` flag. This flag is normally `true`, but we expose
a public method which allows pretty-printing a nonterminal with
`insert_extra_parens = false`.
To avoid changing the public interface of `rustc_ast_pretty`, the
freestanding `_to_string` methods are changed to delegate to a
newly-crated `State`. The main pretty-printing code is moved to a new
`state` module to ensure that it does not accidentally call any of these
public helper functions (instead, the internal functions with the same
name should be used).
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Rollup of 14 pull requests
Successful merges:
- #77239 (Enable building Cargo for aarch64-apple-darwin)
- #77569 (BTreeMap: type-specific variants of node_as_mut and cast_unchecked)
- #77719 (Remove unnecessary rustc_const_stable attributes.)
- #77722 (Remove unsafety from sys/unsupported and add deny(unsafe_op_in_unsafe_fn).)
- #77725 (Add regression issue template)
- #77776 ( Give an error when running `x.py test --stage 0 src/test/ui`)
- #77786 (Mention rustdoc in `x.py setup`)
- #77825 (`min_const_generics` diagnostics improvements)
- #77868 (Include `llvm-dis`, `llc` and `opt` in `llvm-tools-preview` component)
- #77884 (Use Option::unwrap_or instead of open-coding it)
- #77886 (Replace trivial bool matches with the `matches!` macro)
- #77892 (Replace absolute paths with relative ones)
- #77895 (Include aarch64-apple-darwin in the dist manifests)
- #77909 (bootstrap: set correct path for the build-manifest binary)
Failed merges:
- #77902 (Include aarch64-pc-windows-msvc in the dist manifests)
r? `@ghost`
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bootstrap: set correct path for the build-manifest binary
This changes the path of the binary inside the tarball to be:
```
build-manifest-{release}-{target}/build-manifest/bin/build-manifest
```
...instead of:
```
build-manifest-{release}-{target}/build-manifest/bin/build-manifest/build-manifest
```
r? @Mark-Simulacrum
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Include aarch64-apple-darwin in the dist manifests
r? @ehuss
/cc @pietroalbini @Mark-Simulacrum
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Include `llvm-dis`, `llc` and `opt` in `llvm-tools-preview` component
Fixes #55890
It's useful to have `llc` and `opt` available when debugging an LLVM
miscompilation,.
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`min_const_generics` diagnostics improvements
As disscussed in [zulip/project-const-generics/non-trivial anonymous constant](https://rust-lang.zulipchat.com/#narrow/stream/260443-project-const-generics/topic/non-trivial.20anonymous.20constants).
This is my first PR on the compiler.
@lcnr is mentoring me on this PR.
Related to #60551.
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Mention rustdoc in `x.py setup`
This lets new contributors know which option they should pick; previously it wasn't clear 'compiler' also included rustdoc.
Unresolved questions: should this say 'compiler and tools' instead? I don't know of any tools that are modified in-tree other than rustdoc, though.
r? @Mark-Simulacrum
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Give an error when running `x.py test --stage 0 src/test/ui`
The error can be overridden with `COMPILETEST_FORCE_STAGE0=1`. In practice I don't know why anyone would do this.
r? @Mark-Simulacrum
Closes https://github.com/rust-lang/rust/issues/77711
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Enable building Cargo for aarch64-apple-darwin
r? @ghost
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Dist build manifest
This PR makes two changes that should remove a significant chunk of the time spent in our release process: cloning the `rust-lang/rust` monorepo, all its submodules, and building `bootstrap` to then invoke `build-manifest`:
* `build-manifest` doesn't rely on a clone of the monorepo being present anymore. The only remaining bit of information it fetched from it (the Rust version) is instead bundled in the binary.
* A new "component" is added, `build-manifest`. That component includes a prebuilt version of the tool, and it's *not* included in the Rustup manifest. This will allow `promote-release` to directly invoke the tool without interacting with our build system.
* The Linux x86_64 CI is changed to also build the component mentioned above. It's the only CI builder tasked to do so, and to cleanly support this a new `--include-default-paths` flag was added to `./x.py`.
* The `BUILD_MANIFEST_NUM_THREADS` environment variable is added to configure the number of threads at runtime.
This PR is best reviewed commit-by-commit.
r? `@Mark-Simulacrum`
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