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clarify that unchecked indexing is UB even if the reference is never used
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relative links do not work because this is included in several places
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Fix rustc-guide toolstate tracking.
The rustc-guide is still not saving its toolstate. It needs to be done explicitly.
Note: There are some confusing bits here, like without `--no-fail-fast`, it saves the wrong value in `toolstates.json`. Also, "rustbook" is always added as "test-fail". Presumably [this code](https://github.com/rust-lang/rust/blame/63c1f17d950bfefc8f356777f124f304f0575c76/src/bootstrap/tool.rs#L201-L205) assumes everything fails until it passes tests, which is a bit confusing for things that don't run tests.
cc @mark-i-m
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Update Rustfmt and RLS
Closes #63195
cc @topecongiro
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Make `#![feature(bind_by_move_pattern_guards)]` sound without `#[feature(nll)]`
Implements https://github.com/rust-lang/rust/issues/15287#issuecomment-507054617 making `#![feature(bind_by_move_pattern_guards)]]` sound without also having `#![feature(nll)]`. The logic here is that if we see a `match` guard, we will refuse to downgrade NLL errors to warnings. This is in preparation for hopefully stabilizing the former feature in https://github.com/rust-lang/rust/pull/63118.
As fall out from the implementation we also:
Fixes https://github.com/rust-lang/rust/issues/31287
Fixes https://github.com/rust-lang/rust/issues/27282
r? @matthewjasper
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Rollup of 5 pull requests
Successful merges:
- #62954 (Fix typo in Delimited::open_tt)
- #63146 (Cleanup syntax::attr)
- #63218 (rustbuild: RISC-V is no longer an experimental LLVM target)
- #63227 (dead_code: Properly inspect fields in struct patterns with type relative paths)
- #63229 (A bit of Miri error cleanup)
Failed merges:
r? @ghost
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Co-Authored-By: Mazdak Farrokhzad <twingoow@gmail.com>
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A bit of Miri error cleanup
Some cleanup after https://github.com/rust-lang/rust/pull/62969.
r? @oli-obk
Cc @saleemjaffer
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dead_code: Properly inspect fields in struct patterns with type relative paths
Closes #63151.
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rustbuild: RISC-V is no longer an experimental LLVM target
This moves RISC-V from the experimental LLVM targets to the
regular LLVM targets. RISC-V was made non-experimental in
https://reviews.llvm.org/rL366399
I have also sorted the list of LLVM targets, and changed the code
around setting llvm_exp_targets (and its default) to match the code
setting llvm_targets (and its default), ensuring future changes to
the defaults, as LLVM targets become stable, affect as few places as
possible.
Given WebAssembly is in `LLVM_ALL_TARGETS` and is therefore built by default (and has been since October 2018), I'm not sure why rust still has it in `experimental-targets`. I'm happy to update this PR to move it into the main list of LLVM targets.
r? @alexcrichton
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Cleanup syntax::attr
Mostly removing needless arguments to constructors
r? @petrochenkov
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Fix typo in Delimited::open_tt
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Miri: dispatch first on the type
Based on the fact that Miri now always has intptrcast available, we can change binops and casts to first check the type of the source operand and then decide based on that what to do, instead of considering the value (pointer vs bits) first.
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Change opaque type syntax from `existential type` to type alias `impl Trait`
This implements a new feature gate `type_alias_impl_trait` (this is slightly different from the originally proposed feature name, but matches what has been used in discussion since), deprecating the old `existential_types` feature.
The syntax for opaque types has been changed. In addition, the "existential" terminology has been replaced with "opaque", as per previous discussion and the RFC.
This makes partial progress towards implementing https://github.com/rust-lang/rust/issues/63063.
r? @Centril
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Rollup of 7 pull requests
Successful merges:
- #63107 (Added support for armv7-unknown-linux-gnueabi/musleabi)
- #63121 (On `format!()` arg count mismatch provide extra info)
- #63196 (build_helper: try less confusing method names)
- #63206 (remove unsupported test case)
- #63208 (Round generator sizes to a multiple of their alignment)
- #63212 (Pretty print attributes in `print_arg`)
- #63215 (Clarify semantics of mem::zeroed)
Failed merges:
r? @ghost
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Clarify semantics of mem::zeroed
Clarifies the semantics of `mem::zeroed`.
r? @Centril
cc @RalfJung
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Pretty print attributes in `print_arg`
Fixes https://github.com/rust-lang/rust/issues/63210.
cc https://github.com/rust-lang/rust/issues/60406
r? @petrochenkov
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Round generator sizes to a multiple of their alignment
Fixes #62658.
r? @cramertj
cc @eddyb
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remove unsupported test case
r? @alexcrichton
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build_helper: try less confusing method names
build_helper's `*_silent` methods were likely called that way because they do not print the command being run to stdout. [In the original file this all makes sense](https://github.com/rust-lang/rust/commit/046e6874c47ec55e23b7a566bca51d2920562485#diff-5c3d6537a43ecae03014e118a7fe3321). But later it also gained `*_suppressed` methods and the difference between `silent` and `suppressed` is far from clear.
So rename `run` (which prints the command being run) to `run_verbose`. Then we can call the methods that just run a command and show its output but nothing extra `run` and `try_run`.
`run_verbose` (formerly `run`) is unused from what I can tell. Should I remove it?
r? @alexcrichton
Cc @Mark-Simulacrum
Also see https://github.com/rust-lang/rust/pull/63089#discussion_r308018890.
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On `format!()` arg count mismatch provide extra info
When positional width and precision formatting flags are present in a
formatting string that has an argument count mismatch, provide extra
information pointing at them making it easiser to understand where the
problem may lay:
```
error: 4 positional arguments in format string, but there are 3 arguments
--> $DIR/ifmt-bad-arg.rs:78:15
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LL | println!("{} {:.*} {}", 1, 3.2, 4);
| ^^ ^^--^ ^^ --- this parameter corresponds to the precision flag
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| this precision flag adds an extra required argument at position 1, which is why there are 4 arguments expected
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= note: positional arguments are zero-based
= note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html
error: 4 positional arguments in format string, but there are 3 arguments
--> $DIR/ifmt-bad-arg.rs:81:15
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LL | println!("{} {:07$.*} {}", 1, 3.2, 4);
| ^^ ^^-----^ ^^ --- this parameter corresponds to the precision flag
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| | this precision flag adds an extra required argument at position 1, which is why there are 4 arguments expected
| this width flag expects an `usize` argument at position 7, but there are 3 arguments
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= note: positional arguments are zero-based
= note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html
error: invalid reference to positional argument 7 (there are 3 arguments)
--> $DIR/ifmt-bad-arg.rs:84:18
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LL | println!("{} {:07$} {}", 1, 3.2, 4);
| ^^^--^
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| this width flag expects an `usize` argument at position 7, but there are 3 arguments
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= note: positional arguments are zero-based
= note: for information about formatting flags, visit https://doc.rust-lang.org/std/fmt/index.html
```
Fix #49384.
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Added support for armv7-unknown-linux-gnueabi/musleabi
Fixes #63101
Some things that are not done and I hope someone can help me with:
* During the ci build of `armv7-unknown-linux-gnueabi` `openssl` must be built (to build cargo) but `openssl` does not yet support this target. This feels slightly like a chicken-and-egg problem, any feedback is welcome.
* Should I add any tests for any of these targets?
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Unsupported cases
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Co-Authored-By: Mazdak Farrokhzad <twingoow@gmail.com>
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dispatching further; call ptr_op machine hook only for pointer types
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provide thread name to OS for Solarish systems
Fixes #62302
Passes a Linux bootstrap build. python x.py test src/tools/tidy happy.
I tested this with a small test binary that spawns a few threads, and verified
that:
- on an illumos system lacking the libc function, the binary runs but no OS-level
thread names are set
- on an illumos system with the feature, the binary runs, and the thread names are
visible and correct under tools like MDB, pstack, core dump, etc.
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Support for the targets in the compiler and std build in the CI.
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