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I think this code is getting L0, not L1 cache size, if I'm reading the Intel manual right. (I might not be.) Either way, the code comment and the printed message should match, whichever way is right. :)
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Remove border-bottom from most docblocks.
Headings in the top-doc docblock still get a border-bottom due to a rule
that covers all h2, h3, and h4. Method docblocks are generally h5, and
so don't get a border-bottom anymore.
This fixes a problem where a sub-sub-heading within a method would have
a line that went all the way across the page, creating a division that
made that sub-sub-heading look much more important than it really is.
Fixes #90033
Demo at https://jacob.hoffman-andrews.com/rust/less-rule/std/string/struct.String.html
r? ``@GuillaumeGomez``
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Revert #86011 to fix an incorrect bound check
This reverts commit 36a1076d24697621a3bb67ef654b4eb79647aa54, reversing
changes made to e1e9319d93aea755c444c8f8ff863b0936d7a4b6.
Fixes #89935
r? ``@estebank``
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Fix rustdoc UI for very long type names
Fixes #89972.
While working on it, I also discovered that when the item name is too long, it also breaks the flow of the page.
To make things right, I also renamed the `type-decl` CSS class into `item-decl` (because this PR also generates it for more than type declarations).
So here are the before/after screenshots:
r? ``@jsha``
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Deduplicate panic_fmt
std's begin_panic_fmt and core's panic_fmt are duplicates. Merge them to declutter code and remove a lang item.
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Update cargo
6 commits in c7957a74bdcf3b11e7154c1a9401735f23ebd484..7fbbf4e8f23e3c24b8afff541dcb17e53eb5ff88
2021-10-11 20:17:07 +0000 to 2021-10-19 02:16:48 +0000
- Make future-incompat-report output more user-friendly (rust-lang/cargo#9953)
- Fix fetching git repos after a force push. (rust-lang/cargo#9979)
- Add rustc-link-args to doctest build (rust-lang/cargo#9916)
- Add the start of a basic benchmarking suite. (rust-lang/cargo#9955)
- Use forms for issue templates. (rust-lang/cargo#9970)
- Add rust_metadata to SerializedPackage (rust-lang/cargo#9967)
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Fix wrong niche calculation when 2+ niches are placed at the start
When the niche is at the start, existing code incorrectly uses 1 instead of count for subtraction.
Fix #90038
`@rustbot` label: T-compiler
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:arrow_up: rust-analyzer
r? ``@ghost``
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Add test for issue #84957 - `str.as_bytes()` in a `const` expression
Hi, this PR adds a test for issue #84957 . I'm quite new to rustc so let me know if there's anything else that needs doing 😄
Closes #84957
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Do not promote values with const drop that need to be dropped
Changes from #88558 allowed using `~const Drop` in constants by
introducing a new `NeedsNonConstDrop` qualif.
The new qualif was also used for promotion purposes, and allowed
promotion to happen for values that needs to be dropped but which
do have a const drop impl.
Since for promoted the drop implementation is never executed,
this lead to observable change in behaviour. For example:
```rust
struct Panic();
impl const Drop for Panic {
fn drop(&mut self) {
panic!();
}
}
fn main() {
let _ = &Panic();
}
```
Restore the use of `NeedsDrop` qualif during promotion to avoid the issue.
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r=estebank
Suggest a case insensitive match name regardless of levenshtein distance
Fixes #86170
Currently, `find_best_match_for_name` only returns a case insensitive match name depending on a Levenshtein distance. It's a bit unfortunate that that hides some suggestions for typos like `Bar` -> `BAR`. That idea is from https://github.com/rust-lang/rust/pull/46347#discussion_r153701834, but I think it still makes some sense to show a candidate when we find a case insensitive match name as it's more like a typo.
Skipped the `candidate != lookup` check because the current (i.e, `levenshtein_match`) returns the exact same `Symbol` anyway but it doesn't seem to confuse anything on UI tests.
r? ``@estebank``
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Fix macro_rules! duplication when reexported in the same module
This can append if within the same module a `#[macro_export] macro_rules!`
is declared but also a reexport of itself producing two export of the same
macro in the same module. In that case we only want to document it once.
Before:
```
Module {
is_crate: true,
items: [
Id("0:4"), // pub use crate::repro as repro2;
Id("0:3"), // macro_rules! repro
Id("0:3"), // duplicate, same as above
],
}
```
After:
```
Module {
is_crate: true,
items: [
Id("0:4"), // pub use crate::repro as repro2;
Id("0:3"), // macro_rules! repro
],
}
```
Fixes https://github.com/rust-lang/rust/issues/89852
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Headings in the top-doc docblock still get a border-bottom due to a rule
that covers all h2, h3, and h4. Method docblocks are generally h5, and
so don't get a border-bottom anymore.
This fixes a problem where a sub-sub-heading within a method would have
a line that went all the way across the page, creating a division that
made that sub-sub-heading look much more important than it really is.
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Remove redundant member-constraint check
impl trait will, for each lifetime in the hidden type, register a "member constraint" that says the lifetime must be equal or outlive one of the lifetimes of the impl trait. These member constraints will be solved by borrowck
But, as you can see in the big red block of removed code, there was an ad-hoc check for member constraints happening at the site where they get registered. This check had some minor effects on diagnostics, but will fall down on its feet with my big type alias impl trait refactor. So we removed it and I pulled the removal out into a (hopefully) reviewable PR that works on master directly.
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Changes from #88558 allowed using `~const Drop` in constants by
introducing a new `NeedsNonConstDrop` qualif.
The new qualif was also used for promotion purposes, and allowed
promotion to happen for values that needs to be dropped but which
do have a const drop impl.
Since for promoted the drop implementation is never executed,
this lead to observable change in behaviour. For example:
```rust
struct Panic();
impl const Drop for Panic {
fn drop(&mut self) {
panic!();
}
}
fn main() {
let _ = &Panic();
}
```
Restore the use of `NeedsDrop` qualif during promotion to avoid the issue.
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Index and hash HIR as part of lowering
Part of https://github.com/rust-lang/rust/pull/88186
~Based on https://github.com/rust-lang/rust/pull/88880 (see merge commit).~
Once HIR is lowered, it is later indexed by the `index_hir` query and hashed for `crate_hash`. This PR moves those post-processing steps to lowering itself. As a side objective, the HIR crate data structure is refactored as an `IndexVec<LocalDefId, Option<OwnerInfo<'hir>>>` where `OwnerInfo` stores all the relevant information for an HIR owner.
r? `@michaelwoerister`
cc `@petrochenkov`
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This reverts commit 36a1076d24697621a3bb67ef654b4eb79647aa54, reversing
changes made to e1e9319d93aea755c444c8f8ff863b0936d7a4b6.
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* Rename "type-decl" into "item-decl" to reflect the change of usage
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Remove dead code from `compiletest::json`
Currently getting a dead code warning on master. Might make sense to remove.
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rustc_span: `Ident::invalid` -> `Ident::empty`
The equivalent for `Symbol`s was renamed some time ago (`kw::Invalid` -> `kw::Empty`), and it makes sense to do the same thing for `Ident`s as well.
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rustdoc: Add static size assertion for `clean::Type`
r? `@jyn514`
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Check implementing type for `#[doc(hidden)]`
Closes #85526.
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Nicer error message if the user attempts to do let...else if
Gives a nice "conditional `else if` is not supported for `let...else`" error when encountering a `let...else if` pattern, as suggested in the [let...else tracking issue](https://github.com/rust-lang/rust/issues/87335#issuecomment-944846205).
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Fix ICE with `let...else` and `ref mut`
Fixes #89960, opened for review.
I'm not satisfied with the current diagnostics, any ideas?
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bootstrap: tweak verbosity settings
Currently the verbosity settings are:
- 2: RUSTC-SHIM envvars get spammed on every invocation, O(30) lines
cargo is passed -v which outputs CLI invocations, O(5) lines
- 3: cargo is passed -vv which outputs build script output, O(0-10) lines
This commit changes it to:
- 1: cargo is passed -v, O(5) lines
- 2: cargo is passed -vv, O(10) lines
- 3: RUSTC-SHIM envvars get spammed, O(30) lines
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Split out LLVM PGO step and use clang 13 to compile LLVM
We're seeing a PGO version mismatch error in CI logs:
LLVM Profile Error: Runtime and instrumentation version mismatch : expected 5, but get 7
which is likely due to the version bumped here differing from that used by
rustc.
This PR fixes this by splitting out the PGO step for LLVM into a separate phase of the pgo.sh script, which nets no change to performance (see [these results](https://perf.rust-lang.org/compare.html?start=c34ac8747ca96d09cb08b8f5adddead826e77c06&end=e272c2af45f40c74dab83948235903ffbe3ad57f)). Then, it follows that up with an upgrade to LLVM/clang version 13 as our bootstrap compiler, which yields the performance improvements for this PR -- around 5%. This depends on the first step here, because otherwise we end up somehow clobbering or otherwise hurting our ability to effectively collect performance data, yielding reductions in performance for a subset of benchmarks -- it is not clear what the cause here was precisely, but the split only costs ~10 minutes and seems worthwhile.
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Closes #85526.
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The equivalent for `Symbol`s was renamed some time ago (`kw::Invalid` -> `kw::Empty`), and it makes sense to do the same thing for `Ident`s.
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Rollup of 7 pull requests
Successful merges:
- #89738 (ty::pretty: prevent infinite recursion for `extern crate` paths.)
- #89888 (Make `llvm.download-ci-llvm="if-available"` work for tier 2 targets with host tools)
- #89945 (Remove a mention to `copy_from_slice` from `clone_from_slice` doc)
- #89946 (Fix an ICE with TAITs and Future)
- #89963 (Some "parenthesis" and "parentheses" fixes)
- #89975 (Add a regression test for #85921)
- #89977 (Make Result::as_mut const)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
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Add a regression test for #85921
Closes #85921
r? `@jackh726`
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Some "parenthesis" and "parentheses" fixes
"Parenthesis" is the singular (e.g. one `(` or one `)`) and "parentheses" is the plural (multiple `(` or `)`s) and this is not hard to mix up so here are some fixes for that.
Inspired by #89958
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Fix an ICE with TAITs and Future
Fixes #89686
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r=Mark-Simulacrum
Make `llvm.download-ci-llvm="if-available"` work for tier 2 targets with host tools
`llvm.download-ci-llvm="if-available"` is used for most profiles configured via `x.py setup`. It allows downloading prebuilt LLVM tarballs from the CI artifacts for a configured list of platforms. Currently this list is restricted to tier 1 targets but it makes sense for all tier 2 targets with host tools.
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ty::pretty: prevent infinite recursion for `extern crate` paths.
Fixes #55779, fixes #87932.
This fix is based on `@estebank's` idea in https://github.com/rust-lang/rust/issues/55779#issuecomment-614758510 - but instead of trying to get `try_print_visible_def_path_recur`'s cycle detection to work in this case, this PR "just" disables the "visible path" feature when printing the path to an `extern crate`, so that the old recursion chain of `try_print_visible_def_path -> print_def_path -> try_print_visible_def_path`, is now impossible.
Both tests have been confirmed to crash `rustc` because of a stack overflow, without the fix.
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Bump version to Rust 1.58.0
cc `@Mark-Simulacrum`
r? `@ghost`
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