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This commit prepares the 1.27.0 beta release by doing:
* Update the release channel to `beta`
* Update Cargo's submodule
* Update `stdsimd`'s submodule
* Update the bootstrap compiler to the freshly minted 1.26.0 stable release
* Don't attempt to verify clippy/miri build
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Add some groundwork for cross-language LTO.
Implements part of #49879:
- Adds a `-Z cross-lang-lto` flag to rustc
- Makes sure that bitcode is embedded in object files if the flag is set.
This should already allow for using cross language LTO for staticlibs (where one has to invoke the linker manually anyway). However, `rustc` will not try to enable LTO for its own linker invocations yet.
r? @alexcrichton
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Pass a test directory to rustfmt
Another attempt to fix the rustfmt tests. `RUSTFMT_TEST_DIR` is consumed by Rustfmt in the latext commit (thus the Rustfmt update) because we need a place to create temp files that won't be read-only.
r? @alexcrichton
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rustbuild: Allow quick testing of libstd and libcore at stage0
This PR implemented two features:
1. Added a `--no-doc` flag to allow testing a crate *without* doc tests. In this mode, we don't need to build rustdoc, and thus we can skip building the stage2 compiler. (Ideally stage0 test should use the bootstrap rustdoc, but I don't want to mess up the core builder logic here)
2. Moved all libcore tests externally and added a tidy test to ensure we don't accidentally add `#[test]` into libcore.
After this PR, one could run `./x.py test --stage 0 --no-doc src/libstd` to test `libstd` without building the compiler, thus enables us to quickly test new library features.
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Misc tweaks
This:
- ~~Add explicit dependencies on `getops`~~
- Fixes the libtest-json test when `RUST_BACKTRACE=1` is set
- ~~Sets `opt-level` to `3`~~
- Removes the use of `staged_api` from `rustc_plugin`
- ~~Enables the Windows Error Reporting dialog when running rustc during bootstrapping~~
- Disables Windows Error Reporting dialog when running compiletest tests
- Enables backtraces when running rustc during bootstrapping
- ~~Removes the `librustc` dependency on `libtest`~~
- Triggers JIT debugging on Windows if rustc panics during bootstrapping
r? @alexcrichton
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This enables `./x.py test --stage 0 src/libstd --no-doc` and ensures the
stage2-rustc and rustdoc need to be built.
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Fixes #49785
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Add "the Rustc book"
This PR introduces a new book into the documentation, "The rustc book". We already have books for Cargo, and for Rustdoc, rustc should have some too. This book is focused on *users* of rustc, and provides a nice place to write documentation for users.
I haven't put content here, but plan on scaffolding it out very soon, and wanted this PR open for a few discussions first. One of those is "what exactly should said TOC be?" I plan on having a proposed one up tomorrow, but figured I'd let people know to start thinking about it now.
The big one is that we also will want to put https://github.com/rust-lang-nursery/rustc-guide in-tree as well, and the naming is... tough. I'm proposing:
* doc.rust-lang.org/rustc is "The Rustc book", to mirror the other tools' books.
* doc.rust-lang.org/rustc-contribution is "The Rustc contribution guide", and contains that book
@nikomatsakis et al, any thoughts on this? I'm not attached to it in particular, but had to put something together to get this discussion going. I think mirroring the other tools is a good idea for this work, but am not sure where exactly that leaves yours.
Fixes https://github.com/rust-docs/team/issues/11
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Do not test RLS/Rustfmt if build failed
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Update the Cargo submodule
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Avoid a tool being simultaneously test-pass and build-fail.
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Disable auto-detection of libxml2 when compiling llvm.
This broke cross-compiling rustc with internal llvm (with both the host and target being executable on the machine), because llvm's build system detected libxml2 on the host, therefore auto-enabled libxml2 support, but wouldn't compile as the target didn't have libxml2 installed.
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This can often encounter errors after modifying rustc, so it's useful to include it in the steps that are checked.
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Add src/test/ui regression testing for NLL
This PR changes `x.py test` so that when you are running the `ui` test suite, it will also always run `compiletest` in the new `--compare-mode=nll`, which just double-checks that when running under the experimental NLL mode, the output matches the `<source-name>.nll.stderr` file, if present.
In order to reduce the chance of a developer revolt in response to this change, this PR also includes some changes to make the `--compare-mode=nll` more user-friendly:
1. It now generates nll-specific .stamp files, and uses them (so that repeated runs can reuse previously cached results).
2. Each line of terminal output distinguishes whether we are running under `--compare-mode=nll` by printing with the prefix `[ui (nll)]` instead of just the prefix `[ui]`.
Subtask of rust-lang/rust#48879
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Add rustc_trans to x.py check
r? @Mark-Simulacrum
I looked at `bootstrap/compile.rs` and `bootstrap/check.rs` to try to work out which steps were appropriate, but I'm sure I've overlooked some details here, so it's worth checking carefully I've got all the steps right (e.g. I wasn't sure whether we want to build LLVM if necessary with `x.py check`, though I thought it was probably better to than to not).
From a quick test, it seems to be working, though.
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Only emit save-analysis data for `cargo build` tasks
Previously, we were emittinng analysis data for all tasks, including `doc`. That meant we got two sets of save-analysis data, one from the normal build and one from the docs. That means indexing with the RLS took twice as long and made downloads larger and build times longer.
cc https://github.com/rust-lang-nursery/rls/issues/826
r? @Mark-Simulacrum
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This deduplicates the LLVM building functionality from compile.rs and check.rs.
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Previously, we were emittinng analysis data for all tasks, including `doc`. That meant we got two sets of save-analysis data, one from the normal build and one from the docs. That means indexing with the RLS took twice as long and made downloads larger and build times longer.
cc https://github.com/rust-lang-nursery/rls/issues/826
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r=GuillaumeGomez
Add warning if a resolution failed
r? @QuietMisdreavus
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Don't look for cc/cxx when testing with bogus targets
This fixes test builds on Windows.
r? @Mark-Simulacrum
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rustbuild: allow building tools with debuginfo
Debugging information for the extended tools is currently disabled for
concerns about the size. This patch adds `--enable-debuginfo-tools` to
let one opt into having that debuginfo.
This is useful for debugging the tools in distro packages. We always
strip debuginfo into separate packages anyway, so the extra size is not
a concern in regular use.
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Remove -Zmiri debugging option
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chrisccoulson:fix-rustdoc-themes-test-without-rpath, r=Mark-Simulacrum
Fix test failure in src/tools/rustdoc-themes when rust.rpath = false
See https://github.com/rust-lang/rust/issues/49907
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r=steveklabnik,QuietMisdreavus,frewsxcv,GuillaumeGomez
Add docs for the test crate with the std docs
If the compiler docs aren't going to include the test crate then it may as well be included with std.
Fixes #49388
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Don't inject clippy into rls on stable/beta
as discussed at the all-hands
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