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This reverts commit 16ac85ce4dce1e185f2e6ce27df3833e07a9e502.
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Make CrateMetadata and CStore thread-safe
r? @michaelwoerister
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Checks for unknown attributes before aborting due to unresolved macros
Fixes #49074
The ``attribute `...` is currently unknown to the compiler`` error was not shown if there are any unresolved macros, which might be caused by mistyped `macro_use`.
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add intrinsics for portable packed simd vector reductions
Adds the following portable vector reduction intrinsics:
* fn simd_reduce_add<T, U>(x: T) -> U;
* fn simd_reduce_mul<T, U>(x: T) -> U;
* fn simd_reduce_min<T, U>(x: T) -> U;
* fn simd_reduce_max<T, U>(x: T) -> U;
* fn simd_reduce_and<T, U>(x: T) -> U;
* fn simd_reduce_or<T, U>(x: T) -> U;
* fn simd_reduce_xor<T, U>(x: T) -> U;
I've also added:
* fn simd_reduce_all<T>(x: T) -> bool;
* fn simd_reduce_any<T>(x: T) -> bool;
These produce better code that what we are currently producing in `stdsimd`, but the code is still not optimal due to this LLVM bug: https://bugs.llvm.org/show_bug.cgi?id=36702
r? @alexcrichton
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resolve `'_` in `dyn Trait` just like ordinary elision
r? @cramertj
Fixes #48468
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Properly handle collecting default impls of methods with lifetime parameters.
r? @eddyb
Fixes #47309.
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Make `assert` a built-in procedural macro
Makes `assert` macro a built-in one without touching its functionality. This is a prerequisite for RFC 2011 (#44838).
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...due to unresolved macros.
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check stability of macro invocations
I haven't implemented tests yet but this should be a pretty solid prototype. I think as-implemented it will also stability-check macro invocations in the same crate, dunno if we want that or not.
I don't know if we want this to go through `rustc::middle::stability` or not, considering the information there wouldn't be available at the time of macro expansion (even for external crates, right?).
r? @nrc
closes #34079
cc @petrochenkov @durka @jseyfried #38356
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Rollup of 17 pull requests
- Successful merges: #48706, #48875, #48892, #48922, #48957, #48959, #48961, #48965, #49007, #49024, #49042, #49050, #48853, #48990, #49037, #49049, #48972
- Failed merges:
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Coherence diagnostic tweaks
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Fix ICE on malformed plugin attributes
See #48941 for some discussion.
This bug had several duplicate reports which were never closed as dupes:
Fixes #47612
Fixes #48387
Fixes #48941
Fixes #48982
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Remove unnecessary "`" in error message E0307 (invalid self type).
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Some tweaks to "type parameters from outer function" diagnostic
Follow up to #47574.
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Implement import renaming with `_` (RFC 2166)
cc https://github.com/rust-lang/rust/issues/48216
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MIPS testsuite fixes
This PR adjusts various bits in the testsuite so that more stuff passes on mips*.
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Add crate name to "main function not found" error message.
Fixes #44798 and rust-lang/cargo#4948.
I was wondering if it might be cleaner to update the ui tests to add a simple `fn main() {}` for the unrelated tests. Let me know if you would prefer that.
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Stabilize inclusive range (`..=`)
Stabilize the followings:
* `inclusive_range` — The `std::ops::RangeInclusive` and `std::ops::RangeInclusiveTo` types, except its fields (tracked by #49022 separately).
* `inclusive_range_syntax` — The `a..=b` and `..=b` expression syntax
* `dotdoteq_in_patterns` — Using `a..=b` in a pattern
cc #28237
r? @rust-lang/lang
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Reword E0044 and message for `!Send` types
- Reword E0044 help.
- Change error message for types that don't implement `Send`
CC #45092, #46678, #24909, #33307.
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They are disallowed because they have different precedence than
expressions. I assume parenthesis in pattern will be soon stabilized and
thus write that as suggestion directly.
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Stabilize `match 2 { 1..=3 => {} }`.
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Stabilize the syntax `a..=b` and `..=b`.
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Stabilize std::ops::RangeInclusive and std::ops::RangeInclusiveTo.
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Fallible allocation
Implementing RFC#2116 [Fallible Allocation](https://github.com/rust-lang/rust/issues/48043) .
Work in progress. Initially adding @Gankro's try_reserve for Vec.
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Extend `rustc_on_unimplemented` to match on ADT without evaluating type
arguments.
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- Reword E0044 help.
- Change error message for types that don't implement `Send`
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Stabilise feature(never_type). Introduce feature(exhaustive_patterns)
This stabilizes `!`, removing the feature gate as well as the old defaulting-to-`()` behavior. The pattern exhaustiveness checks which were covered by `feature(never_type)` have been moved behind a new `feature(exhaustive_patterns)` gate.
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cc #48468
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Follow up to #47574.
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Fixes #44798 and rust-lang/cargo#4948.
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Add a test for #48070
Resolves #48070.
The bug itself was fixed by #48770, but that PR didn't add a test for it.
r? @nikomatsakis
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