Commit Graph

91 Commits

Author SHA1 Message Date
Manish Goregaokar
6d18c9912f Rollup merge of #88963 - fee1-dead:const-iterator, r=oli-obk
Coerce const FnDefs to implement const Fn traits

You can now pass a FnDef to a function expecting `F` where `F: ~const FnTrait`.

r? ``@oli-obk``

``@rustbot`` label T-compiler F-const_trait_impl
2021-10-01 14:46:48 -07:00
flip1995
23d5457e6d Merge commit 'cb7915b00c235e9b5861564f3be78dba330980ee' into clippyup 2021-09-28 18:03:12 +01:00
bors
aef45770f8 Auto merge of #89030 - nbdd0121:box2, r=jonas-schievink
Introduce `Rvalue::ShallowInitBox`

Polished version of #88700.

Implements MCP rust-lang/compiler-team#460, and should allow #43596 to go forward.

In short, creating an empty box is split from a nullary-op `NullOp::Box` into two steps, first a call to `exchange_malloc`, then a `Rvalue::ShallowInitBox` which transmutes `*mut u8` to a shallow-initialized `Box<T>`. This allows the `exchange_malloc` call to unwind. Details can be found in the MCP.

`NullOp::Box` is not yet removed, purely to make reverting easier in case anything goes wrong as the result of this PR. If revert is needed a reversion of "Use Rvalue::ShallowInitBox for box expression" commit followed by a test bless should be sufficient.

Experiments in #88700 showed a very slight compile-time perf regression due to (supposedly) slightly more time spent in LLVM. We could omit unwind edge generation (in non-`oom=panic` case) in box expression MIR construction to restore perf; but I don't think it's necessary since runtime perf isn't affected and perf difference is rather small.
2021-09-25 11:01:13 +00:00
Gary Guo
fc8edf12cd Introduce Rvalue::ShallowInitBox 2021-09-25 01:08:41 +01:00
bors
edaeacfbbb Auto merge of #89139 - camsteffen:write-perf, r=Mark-Simulacrum
Use ZST for fmt unsafety

as suggested here - https://github.com/rust-lang/rust/pull/83302#issuecomment-923529151.
2021-09-23 02:10:26 +00:00
Cameron Steffen
4873ebee4c Use ZST for fmt unsafety
This allows the format_args! macro to keep the pre-expansion code out of
the unsafe block without doing gymnastics with nested `match`
expressions. This reduces codegen.
2021-09-21 10:04:44 -05:00
Cameron Steffen
19a3116feb Remove needless hir Map ref 2021-09-18 15:55:34 -05:00
Deadbeef
3e5f80f009 Move is_const_fn to under TyCtxt 2021-09-15 11:27:34 +00:00
Guillaume Gomez
d37f1091e8 Update permissions path for clippy lint 2021-09-13 21:27:53 +02:00
bors
1add837c91 Auto merge of #88517 - smoelius:without-patch-versions, r=flip1995
Update Clippy dependencies without patch versions

Trial run for https://github.com/rust-lang/rust-clippy/pull/7606
2021-09-13 02:45:18 +00:00
bors
00d45fe5b7 Auto merge of #88839 - nbdd0121:alignof, r=nagisa
Introduce NullOp::AlignOf

This PR introduces `Rvalue::NullaryOp(NullOp::AlignOf, ty)`, which will be lowered from `align_of`, similar to `size_of` lowering to `Rvalue::NullaryOp(NullOp::SizeOf, ty)`.

The changes are originally part of #88700 but since it's not dependent on other changes and could have performance impact on its own, it's separated into its own PR.
2021-09-12 23:49:24 +00:00
Gary Guo
5d93d9d040 Introduce NullOp::AlignOf 2021-09-13 00:08:35 +01:00
Vadim Petrochenkov
9163ac9595 rustc: Remove local variable IDs from Exports
Local variables can never be exported.
2021-09-10 23:41:48 +03:00
Samuel E. Moelius III
43ed2065cc Update dependencies 2021-09-09 07:47:16 -04:00
bors
261e34d534 Auto merge of #88615 - flip1995:clippyup, r=Manishearth
Update Clippy

r? `@Manishearth`
2021-09-08 23:52:31 +00:00
flip1995
091ed44b50 Merge commit '27afd6ade4bb1123a8bf82001629b69d23d62aff' into clippyup 2021-09-08 16:31:47 +02:00
Camille GILLOT
98e8682cb4 Rename rustc_mir to rustc_const_eval. 2021-09-07 20:46:26 +02:00
Cameron Steffen
78bf4acc3a Fix clippy for let-else 2021-08-30 20:18:41 -05:00
lcnr
afd892a549 update TypeFlags to deal with missing ct substs 2021-08-26 11:00:30 +02:00
lcnr
b1786f62ed add tcx to fn walk 2021-08-26 11:00:30 +02:00
lcnr
19d1fe21c7 make unevaluated const substs optional 2021-08-26 11:00:30 +02:00
bors
72df99a49b Auto merge of #83302 - camsteffen:write-piece-unchecked, r=dtolnay
Get piece unchecked in `write`

We already use specialized `zip`, but it seems like we can do a little better by not checking `pieces` length at all.

`Arguments` constructors are now unsafe. So the `format_args!` expansion now includes an `unsafe` block.

<details>
<summary>Local Bench Diff</summary>

```text
 name                        before ns/iter  after ns/iter  diff ns/iter   diff %  speedup
 fmt::write_str_macro1       22,967          19,718               -3,249  -14.15%   x 1.16
 fmt::write_str_macro2       35,527          32,654               -2,873   -8.09%   x 1.09
 fmt::write_str_macro_debug  571,953         575,973               4,020    0.70%   x 0.99
 fmt::write_str_ref          9,579           9,459                  -120   -1.25%   x 1.01
 fmt::write_str_value        9,573           9,572                    -1   -0.01%   x 1.00
 fmt::write_u128_max         176             173                      -3   -1.70%   x 1.02
 fmt::write_u128_min         138             134                      -4   -2.90%   x 1.03
 fmt::write_u64_max          139             136                      -3   -2.16%   x 1.02
 fmt::write_u64_min          129             135                       6    4.65%   x 0.96
 fmt::write_vec_macro1       24,401          22,273               -2,128   -8.72%   x 1.10
 fmt::write_vec_macro2       37,096          35,602               -1,494   -4.03%   x 1.04
 fmt::write_vec_macro_debug  588,291         589,575               1,284    0.22%   x 1.00
 fmt::write_vec_ref          9,568           9,732                   164    1.71%   x 0.98
 fmt::write_vec_value        9,516           9,625                   109    1.15%   x 0.99
```
</details>
2021-08-23 22:55:19 +00:00
Mara Bos
4c847c0dbd Rollup merge of #88230 - steffahn:a_an, r=oli-obk
Fix typos “a”→“an”

Fix typos in comments; found using a regex to find some easy instance of incorrect usage of a vs. an.

While automation was used to find these, every change was checked manually.

Changes in submodules get separate PRs:
* https://github.com/rust-lang/stdarch/pull/1201
* https://github.com/rust-lang/cargo/pull/9821
* https://github.com/rust-lang/miri/pull/1874
* https://github.com/rust-lang/rls/pull/1746
* https://github.com/rust-analyzer/rust-analyzer/pull/9984
  _folks @ rust-analyzer are fast at merging…_
  * https://github.com/rust-analyzer/rust-analyzer/pull/9985
  * https://github.com/rust-analyzer/rust-analyzer/pull/9987
  * https://github.com/rust-analyzer/rust-analyzer/pull/9989

_For `clippy`, I don’t know if the changes should better better be moved to a PR to the original repo._

<hr>

This has some overlap with #88226, but neither is a strict superset of the other.

If you want multiple commits, I can split it up; in that case, make sure to suggest a criterion for splitting.
2021-08-23 20:45:49 +02:00
Guillaume Gomez
5868e28537 Rollup merge of #88211 - petrochenkov:withhilo, r=jyn514
cleanup: `Span::new` -> `Span::with_lo`

Extracted from https://github.com/rust-lang/rust/pull/84373 as suggested in https://github.com/rust-lang/rust/pull/84373#issuecomment-857773867.
It turned out less useful then I expected, but anyway.
r? `@cjgillot`
`@bors` rollup
2021-08-22 20:52:54 +02:00
Frank Steffahn
c86071898f Fix typos “a”→“an” 2021-08-22 15:35:11 +02:00
bors
e5fe4625ff Auto merge of #88163 - camsteffen:collapsible-match-fix, r=Manishearth
Fix clippy::collapsible_match with let expressions

This fixes rust-lang/rust-clippy#7575 which is a regression from #80357. I am fixing the bug here instead of in the clippy repo (if that's okay) because a) the regression has not been synced yet and b) I would like to land the fix on nightly asap.

The fix is basically to re-generalize `match` and `if let` for the lint implementation (they were split because `if let` no longer desugars to `match` in the HIR).

Also fixes rust-lang/rust-clippy#7586 and fixes rust-lang/rust-clippy#7591
cc `@rust-lang/clippy`
`@xFrednet` do you want to review this?
2021-08-22 13:26:32 +00:00
Vadim Petrochenkov
cd4bf7fb8e cleanup: Span::new -> Span::with_lo 2021-08-21 18:07:21 +03:00
Niko Matsakis
5fec618d2e introduce a Coerce predicate 2021-08-19 17:28:24 -04:00
Cameron Steffen
ae02282ad0 Fix clippy let expressions fallout 2021-08-19 14:17:05 -05:00
Cameron Steffen
d5e51dbf10 clippy: Fix format_args expansion parsing 2021-08-16 16:29:23 +00:00
Caio
b97d4c062b Introduce hir::ExprKind::Let - Take 2 2021-08-15 16:18:26 -03:00
Deadbeef
80bff87c6f move Constness into TraitPredicate 2021-08-13 09:26:33 +00:00
flip1995
1ad5464200 Merge commit '7bfc26ec8e7a454786668e7e52ffe527fc649735' into clippyup 2021-08-12 11:16:25 +02:00
Jade
6c2199ea9f rfc3052: Remove authors field from Cargo manifests
Since RFC 3052 soft deprecated the authors field anyway, hiding it from
crates.io, docs.rs, and making Cargo not add it by default, and it is
not generally up to date/useful information, we should remove it from
crates in this repo.
2021-07-29 14:56:05 -07:00
flip1995
2b20f49841 Merge commit '0cce3f643bfcbb92d5a1bb71858c9cbaff749d6b' into clippyup 2021-07-29 12:16:06 +02:00
kadmin
74379d4d85 Actually infer args in visitors 2021-07-26 21:15:18 +00:00
kadmin
8286824ab2 Add inferred args to typeck 2021-07-25 07:28:51 +00:00
kadmin
00faed9f0c Add generic arg infer 2021-07-25 07:28:51 +00:00
flip1995
884ef4c287 Merge commit '4c41a222ca5d1325fb4b6709395bd06e766cc042' into clippyup 2021-07-19 11:52:05 +02:00
bors
1b0e57800c Auto merge of #87140 - camsteffen:pat-slice-refs, r=oli-obk
Remove refs from Pat slices

Changes `PatKind::Or(&'hir [&'hir Pat<'hir>])` to `PatKind::Or(&'hir [Pat<'hir>])` and others. This is more consistent with `ExprKind`, saves a little memory, and is a little easier to use.
2021-07-16 13:35:48 +00:00
Guillaume Gomez
5c54d04ef6 Rollup merge of #87069 - sexxi-goose:copy_ref_always, r=nikomatsakis
ExprUseVisitor: Treat ByValue use of Copy types as ImmBorrow

r? ```@nikomatsakis```
2021-07-16 10:08:05 +02:00
Cameron Steffen
81904a413e Remove refs from pat slices 2021-07-15 16:09:57 -05:00
flip1995
1d084b13a5 Merge commit '54a20a02ecd0e1352a871aa0990bcc8b8b03173e' into clippyup 2021-07-15 10:44:10 +02:00
Aman Arora
a9e9b7f9b2 ExprUseVisitor::Delegate consume only when moving 2021-07-14 02:21:08 -04:00
Vadim Petrochenkov
075a28996c rustc_span: Revert addition of proc_macro field to ExpnKind::Macro
The flag has a vague meaning and is used for a single diagnostic change that is low benefit and appears only under `-Z macro_backtrace`.
2021-07-10 23:03:35 +03:00
Aman Arora
f0f3b3acf8 Make type_implements_trait not a query 2021-07-06 14:38:10 -04:00
Niko Matsakis
26e57f05cc revert broken formatting 2021-07-04 12:50:41 -04:00
Niko Matsakis
89f6c4cfe2 allow inference vars in type_implements_trait 2021-07-04 11:28:20 -04:00
bors
7cd0643eb2 Auto merge of #86782 - flip1995:clippyup, r=Manishearth
Update Clippy

Biweekly Clippy Update

r? `@Manishearth`
2021-07-02 02:56:45 +00:00
flip1995
ebe52869a3 Merge commit '61eb38aeda6cb54b93b872bf503d70084c4d621c' into clippyup 2021-07-01 18:17:38 +02:00