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Update Miri
Fixes #85946.
r? `@RalfJung`
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Rollup of 13 pull requests
Successful merges:
- #83362 (Stabilize `vecdeque_binary_search`)
- #85706 (Turn off frame pointer elimination on all Apple platforms. )
- #85724 (Fix issue 85435 by restricting Fake Read precision)
- #85852 (Clarify meaning of MachineApplicable suggestions.)
- #85877 (Intra doc link-ify a reference to a function)
- #85880 (convert assertion on rvalue::threadlocalref to delay bug)
- #85896 (Add test for forward declared const param defaults)
- #85897 (Update I-unsound label for triagebot)
- #85900 (Use pattern matching instead of checking lengths explicitly)
- #85911 (Avoid a clone of output_filenames.)
- #85926 (Update cargo)
- #85934 (Add `Ty::is_union` predicate)
- #85935 (Validate type of locals used as indices)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Update cargo
10 commits in e931e4796b61de593aa1097649445e535c9c7ee0..0cecbd67323ca14a7eb6505900d0d7307b00355b
2021-05-24 16:17:27 +0000 to 2021-06-01 20:09:13 +0000
- Configure hosts separately from targets when --target is specified. (rust-lang/cargo#9322)
- Add some validation to rustc-link-arg (rust-lang/cargo#9523)
- Implement suggestions for unknown features in workspace (rust-lang/cargo#9420)
- Extract common `make_dep_path` to cargo_util (rust-lang/cargo#9529)
- Add a note about rustflags compatibility. (rust-lang/cargo#9524)
- Consolidate doc collision detection. (rust-lang/cargo#9526)
- Add `--depth` option for `cargo-tree` (rust-lang/cargo#9499)
- `cargo tree -e no-proc-macro` to hide procedural macro dependencies (rust-lang/cargo#9488)
- Update to semver 1.0.0 (rust-lang/cargo#9508)
- Update tar dependency to 0.4.35 (rust-lang/cargo#9517)
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r=petrochenkov
Add test for forward declared const param defaults
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convert assertion on rvalue::threadlocalref to delay bug
Closes #85768
r? ``@oli-obk``
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rustc: Allow safe #[target_feature] on wasm
This commit updates the compiler's handling of the `#[target_feature]`
attribute when applied to functions on WebAssembly-based targets. The
compiler in general requires that any functions with `#[target_feature]`
are marked as `unsafe` as well, but this commit relaxes the restriction
for WebAssembly targets where the attribute can be applied to safe
functions as well.
The reason this is done is that the motivation for this feature of the
compiler is not applicable for WebAssembly targets. In general the
`#[target_feature]` attribute is used to enhance target CPU features
enabled beyond the basic level for the rest of the compilation. If done
improperly this means that your program could execute an instruction
that the CPU you happen to be running on does not understand. This is
considered undefined behavior where it is unknown what will happen (e.g.
it's not a deterministic `SIGILL`).
For WebAssembly, however, the target is different. It is not possible
for a running WebAssembly program to execute an instruction that the
engine does not understand. If this were the case then the program would
not have validated in the first place and would not run at all. Even if
this were allowed in some hypothetical future where engines have some
form of runtime feature detection (which they do not right now) any
implementation of such a feature would generate a trap if a module
attempts to execute an instruction the module does not understand. This
deterministic trap behavior would still not fall into the category of
undefined behavior because the trap is deterministic.
For these reasons the `#[target_feature]` attribute is now allowed on
safe functions, but only for WebAssembly targets. This notably enables
the wasm-SIMD intrinsics proposed for stabilization in #74372 to be
marked as safe generally instead of today where they're all `unsafe` due
to the historical implementation of `#[target_feature]` in the compiler.
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Sidebar unification
This PR does a few things:
* Put crates list at all levels (before, it was only on the "top" items)
* Fix bug in module sidebar: the list of items was from the parent module.
The other changes (on bootstrap mostly) were to allow to generate multiple crates in a same folder so that we can ensure that clicking on the crates in the sidebar works as expected.
I added a rustdoc-gui test to ensure everything is where it should be.
r? `@jyn514`
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Clean up dom
The commits come from #84480.
They were errors reported by the `tidy` script that we will use to ensure that the HTML generated by rustdoc is valid.
I checked carefully that there were no difference so in principle it should be exactly the same rendering but a double-check would be very appreciated in case I missed something.
Extra note: `<h4>` and some `<h3>` tags were replaced by `<div>` because they're not supposed to contain tags as they currently do.
r? `@jsha`
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Also remove original_crate_name, which had the exact same implementation
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New prelude
RFC: rust-lang/rfcs#3114
Tracking issue: https://github.com/rust-lang/rust/issues/85684
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Make rustc_dirty/clean annotations exhaustive by default
Fixes #45009
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Remove CrateNum::ReservedForIncrCompCache
It's only use is easily replaceable with `Option<CrateNum>`.
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Rollup of 4 pull requests
Successful merges:
- #85473 (fix split-debuginfo error message)
- #85622 (Remove toggle for "undocumented items.")
- #85826 (Mention "null pointer optimization" in option docs.)
- #85860 (Fix details rustdoc toggle for blanket impl)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Fix details rustdoc toggle for blanket impl
In the meantime, allow all of the details to have the same top.
Before
After
I stumbled across this while wanting to do a details button for the layout.
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Remove toggle for "undocumented items."
Per discussion in #84326. For trait implementations, this was
misleading: the items actually do have documentation (but it comes from
the trait definition).
For both trait implementations and trait implementors, this was
redundant: in both of those cases, the items are default-hidden by
different toggle at the level above.
Update tests: Remove XPath selectors that over-specified on details tag,
in cases that weren't testing toggles. Add an explicit test for toggles
on methods. Rename item-hide-threshold to toggle-item-contents for
consistency.
Demo:
https://hoffman-andrews.com/rust/untoggle-undocumented/std/string/struct.String.html
https://hoffman-andrews.com/rust/untoggle-undocumented/std/io/trait.Read.html
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Revert "Reduce the amount of untracked state in TyCtxt"
Reverts rust-lang/rust#85153
Fixes https://github.com/rust-lang/rust/issues/85878
The performance hit is massive, and was not visible in the in-review perf run.
r? `@Aaron1011`
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Add title for copy to clipboard button in rustdoc
This button
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:arrow_up: rust-analyzer
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Reduce the amount of untracked state in TyCtxt
Access to untracked global state may generate instances of #84970.
The GlobalCtxt contains the lowered HIR, the resolver outputs and interners.
By wrapping the resolver inside a query, we make sure those accesses are properly tracked.
As a no_hash query, all dependent queries essentially become `eval_always`,
what they should have been from the beginning.
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Bump Miri for const_err changes
Fixes https://github.com/rust-lang/rust/issues/85861
r? `@RalfJung`
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Don't sort a `Vec` before computing its `DepTrackingHash`
Previously, we sorted the vec prior to hashing, making the hash
independent of the original (command-line argument) order. However, the
original vec was still always kept in the original order, so we were
relying on the rest of the compiler always working with it in an
'order-independent' way.
This assumption was not being upheld by the `native_libraries` query -
the order of the entires in its result depends on the order of entries
in `Options.libs`. This lead to an 'unstable fingerprint' ICE when the
`-l` arguments were re-ordered.
This PR removes the sorting logic entirely. Re-ordering command-line
arguments (without adding/removing/changing any arguments) seems like a
really niche use case, and correctly optimizing for it would require
additional work. By always hashing arguments in their original order, we
can entirely avoid a cause of 'unstable fingerprint' errors.
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r? @RalfJung
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In the meantime, allow all of the details to have the same top.
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Emit a hard error when a panic occurs during const-eval
Previous, a panic during const evaluation would go through the
`const_err` lint. This PR ensures that such a panic always causes
compilation to fail.
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rustdoc-gui tool
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* Fix bug in module sidebar: the list of items was from the parent module
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Build crtbegin.o/crtend.o from source code
Build crtbengin.o/crtend.o from source code instead of copying from gcc.
The crtbegin and crtend implementation from llvm don't need `crtbeginS.o` for PIC. `crtbegin{,S,T}.o` is unified into one generic `crtbegin.o`. See the comments in https://reviews.llvm.org/D28791#1419436 and https://reviews.llvm.org/D28791#1420914
fix: https://github.com/rust-lang/rust/issues/85310 , fix: https://github.com/rust-lang/rust/issues/47551 , fix: https://github.com/rust-lang/rust/issues/84033
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Per discussion in #84326. For trait implementations, this was
misleading: the items actually do have documentation (but it comes from
the trait definition).
For both trait implementations and trait implementors, this was
redundant: in both of those cases, the items are default-hidden by
different toggle at the level above.
Update tests: Remove XPath selectors that over-specified on details tag,
in cases that weren't testing toggles. Add an explicit test for toggles
on methods. Rename item-hide-threshold to toggle-item-contents for
consistency.
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