Commit Graph

2355 Commits

Author SHA1 Message Date
Matthew Jasper
7f3e8551dd Use record_operands_moved more aggresively 2020-12-04 22:22:52 +00:00
Matthew Jasper
b766abc88f Simplify unscheduling of drops after moves 2020-12-04 22:19:28 +00:00
bors
2218520b8a Auto merge of #79680 - Nadrieril:fix-regression-79284, r=jonas-schievink
Fix perf regression caused by #79284

https://github.com/rust-lang/rust/pull/79284 only moved code around but this changed inlining and caused a large perf regression. This fixes it for me, though I'm less confident than usual because the regression was not observable with my usual (i.e. incremental) compilation settings.

r? `@Mark-Simulacrum`
2020-12-04 11:21:35 +00:00
bors
e6225434ff Auto merge of #78177 - benjaminp:cleanups, r=jyn514
A few miscellaneous comment fixes and a tiny code clarification.
2020-12-04 07:11:41 +00:00
Benjamin Peterson
504f136c74 Writeback walks the HIR not the AST. 2020-12-03 23:38:36 -06:00
Benjamin Peterson
76ff0f408a The details of higher-rank sub are in the rustc book not a doc module. 2020-12-03 23:38:36 -06:00
Benjamin Peterson
4d8a7c2829 Unnest some .chain calls, so it's clearer what's going on. 2020-12-03 23:37:26 -06:00
Benjamin Peterson
cb56b1a7e9 Fix comment that refers to dead enforce_object_limitations function. 2020-12-03 23:37:26 -06:00
bors
e9dd18ca74 Auto merge of #79686 - Dylan-DPC:rollup-leama5f, r=Dylan-DPC
Rollup of 11 pull requests

Successful merges:

 - #77686 (Render Markdown in search results)
 - #79541 (Doc keyword lint pass)
 - #79602 (Fix SGX CI)
 - #79611 (Use more std:: instead of core:: in docs for consistency)
 - #79623 (Pass around Symbols instead of Idents in doctree)
 - #79627 (Update cargo)
 - #79631 (disable a ptr equality test on Miri)
 - #79638 (Use `item_name` instead of pretty printing for resolving `Self` on intra-doc links)
 - #79646 (rustc_metadata: Remove some dead code)
 - #79664 (move interpret::MemoryKind::Heap to const eval)
 - #79678 (Fix some clippy lints)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2020-12-04 04:51:49 +00:00
bors
6513f50291 Auto merge of #79109 - richkadel:llvm-coverage-counters-2.0.5, r=tmandry
Coverage tests for remaining TerminatorKinds and async, improve Assert

Tested and validate results for panic unwind, panic abort, assert!()
macro, TerminatorKind::Assert (for example, numeric overflow), and
async/await.

Implemented a previous documented idea to change Assert handling to be
the same as FalseUnwind and Goto, so it doesn't get its own
BasicCoverageBlock anymore. This changed a couple of coverage regions,
but I validated those changes are not any worse than the prior results,
and probably help assure some consistency (even if some people might
disagree with how the code region is consistently computed).

Fixed issue with async/await. AggregateKind::Generator needs to be
handled like AggregateKind::Closure; coverage span for the outer async
function should not "cover" the async body, which is actually executed
in a separate "closure" MIR.
2020-12-04 02:31:11 +00:00
Dylan DPC
5cebbaa6a1
Rollup merge of #79678 - jyn514:THE-PAPERCLIP-COMETH, r=varkor
Fix some clippy lints

Happy to revert these if you think they're less readable, but personally I like them better now (especially the `else { if { ... } }` to `else if { ... }` change).
2020-12-04 03:30:39 +01:00
Dylan DPC
a2aa3d6e49
Rollup merge of #79664 - vn-ki:move-memkind-heap, r=oli-obk
move interpret::MemoryKind::Heap to const eval

r? ``@oli-obk``
2020-12-04 03:30:37 +01:00
Dylan DPC
0fbbe94662
Rollup merge of #79646 - petrochenkov:inclean, r=davidtwco
rustc_metadata: Remove some dead code

Follow up to https://github.com/rust-lang/rust/pull/74967
2020-12-04 03:30:36 +01:00
Dylan DPC
f4060521a9
Rollup merge of #79541 - GuillaumeGomez:doc-keyword-lint-pass, r=lcnr
Doc keyword lint pass

`x.py test` doesn't seem to work locally for multiple reasons so simpler to just run CI...
2020-12-04 03:30:19 +01:00
Nadrieril
793c40e0bd Inline is_covered_by 2020-12-04 01:45:34 +00:00
Joshua Nelson
0ad3dce83a Fix some clippy lints 2020-12-03 17:08:19 -05:00
bors
5be3f9f10e Auto merge of #79620 - JohnTitor:label-name-sugg, r=davidtwco
Tweak diagnostics on shadowing lifetimes/labels

Fixes #79610

Skip adding a new test assuming we have already sufficient tests.
2020-12-03 18:55:01 +00:00
Rich Kadel
d96f351fa3 Addressed feedback from 2020-12-01
Added one more test (two files) showing coverage of generics and unused
functions across crates.

Created and referenced new Issues, as requested.

Added comments.

Added a note about the possible effects of compiler options on LLVM
coverage maps.
2020-12-03 09:50:10 -08:00
Rich Kadel
def932ca86 Combination of commits
Fixes multiple issue with counters, with simplification

  Includes a change to the implicit else span in ast_lowering, so coverage
  of the implicit else no longer spans the `then` block.

  Adds coverage for unused closures and async function bodies.

  Fixes: #78542

Adding unreachable regions for known MIR missing from coverage map

Cleaned up PR commits, and removed link-dead-code requirement and tests

  Coverage no longer depends on Issue #76038 (`-C link-dead-code` is
  no longer needed or enforced, so MSVC can use the same tests as
  Linux and MacOS now)

Restrict adding unreachable regions to covered files

  Improved the code that adds coverage for uncalled functions (with MIR
  but not-codegenned) to avoid generating coverage in files not already
  included in the files with covered functions.

Resolved last known issue requiring --emit llvm-ir workaround

  Fixed bugs in how unreachable code spans were added.
2020-12-03 09:50:10 -08:00
Rich Kadel
c45ee4bb29 Coverage tests for remaining TerminatorKinds and async, improve Assert
Tested and validate results for panic unwind, panic abort, assert!()
macro, TerminatorKind::Assert (for example, numeric overflow), and
async/await.

Implemented a previous documented idea to change Assert handling to be
the same as FalseUnwind and Goto, so it doesn't get its own
BasicCoverageBlock anymore. This changed a couple of coverage regions,
but I validated those changes are not any worse than the prior results,
and probably help assure some consistency (even if some people might
disagree with how the code region is consistently computed).

Fixed issue with async/await. AggregateKind::Generator needs to be
handled like AggregateKind::Closure; coverage span for the outer async
function should not "cover" the async body, which is actually executed
in a separate "closure" MIR.
2020-12-03 09:50:09 -08:00
Vishnunarayan K I
ff0ebd27a4 move interpret::MemoryKind::Heap to const eval 2020-12-03 21:42:11 +05:30
Guillaume Gomez
50eb3a89f8 Only deny doc_keyword in std and set it as "allow" by default 2020-12-03 16:48:17 +01:00
bors
1f95c91c88 Auto merge of #79613 - GuillaumeGomez:doc-keyword-checks, r=oli-obk
Add checks for #[doc(keyword = "...")] attribute

The goal here is to extend check for `#[doc(keyword = "...")]`.

cc `@jyn514`
r? `@oli-obk`
2020-12-03 14:34:20 +00:00
bors
220352781c Auto merge of #79586 - jyn514:crate-name, r=davidtwco
Fix `unknown-crate` when using -Z self-profile with rustdoc

... by removing a duplicate `crate_name` field in `interface::Config`,
making it clear that rustdoc should be passing it to `config::Options` instead.

Unblocks https://github.com/rust-lang/rustc-perf/issues/797.
2020-12-03 12:14:29 +00:00
bors
d015f0d921 Auto merge of #79594 - vn-ki:const-eval-intrinsic, r=oli-obk
add const_allocate intrinsic

r? `@oli-obk`

fixes #75390
2020-12-03 09:44:07 +00:00
Guillaume Gomez
56c64f871e Add lint pass for doc keyword 2020-12-03 10:42:15 +01:00
Vishnunarayan K I
bc6eb6fa5d move intrinsic to CTFE, add FIXME 2020-12-03 12:21:47 +05:30
bors
c7cff213e9 Auto merge of #79533 - sasurau4:feature/add-long-explanation-E0546, r=GuillaumeGomez
Add long explanation of E0546

Helps with #61137
2020-12-03 05:18:36 +00:00
bors
b4def89d76 Auto merge of #79637 - spastorino:revert-trait-inheritance-self, r=Mark-Simulacrum
Revert "Auto merge of #79209

r? `@nikomatsakis`

This has caused some issues (#79560) so better to revert and try to come up with a proper fix without rush.
2020-12-03 02:00:46 +00:00
Vadim Petrochenkov
908bf5a310 rustc_metadata: Remove some dead code 2020-12-03 00:05:24 +03:00
bors
f4db9ffb22 Auto merge of #79364 - nico-abram:unstable-or-pat-suggestion, r=matthewjasper
Fixes #79357 unstable or-pat suggestions

Fixes #79357
2020-12-02 20:33:55 +00:00
Santiago Pastorino
37354ebc97
Revert "Auto merge of #79209 - spastorino:trait-inheritance-self, r=nikomatsakis"
This reverts commit 349b3b324d, reversing
changes made to b776d1c3e3.
2020-12-02 12:19:38 -03:00
bors
a094ff9590 Auto merge of #79547 - erikdesjardins:byval, r=nagisa
Pass arguments up to 2*usize by value

In https://github.com/rust-lang/rust/pull/77434#discussion_r498719533, `@eddyb` said:

> I wonder if it makes sense to limit this to returns [...]

Let's do a perf run and find out.

It seems the `extern "C"` ABI will pass arguments up to 2*usize in registers: https://godbolt.org/z/n8E6zc. (modified from https://github.com/rust-lang/rust/issues/26494#issuecomment-619506345)

r? `@nagisa`
2020-12-02 15:17:32 +00:00
Vishnunarayan K I
899a59e7ca rename MemoryKind::Heap to ConstHeap; bless test 2020-12-02 17:45:11 +05:30
Vishnunarayan K I
1b7fe09025 add comment and bless some tests 2020-12-02 17:19:11 +05:30
Guillaume Gomez
8a35b93c4d Add rustc_lexer as dependency to rustc_passes 2020-12-02 10:42:50 +01:00
Guillaume Gomez
dc10ccfe89 Add checks for #[doc(keyword = "...")] and move them into rustc_passes 2020-12-02 10:42:50 +01:00
Guillaume Gomez
5a228263b8 Clean up doc attributes check before adding more 2020-12-02 10:42:50 +01:00
bors
d37afad0cc Auto merge of #79606 - ThePuzzlemaker:issue-79458-fix, r=scottmcm
Do not show negative polarity trait implementations in diagnostic messages for similar implementations

This fixes #79458.

Previously, this code:
```rust
#[derive(Clone)]
struct Foo<'a, T> {
    x: &'a mut T,
}
```
would have suggested that `<&mut T as Clone>` was an implementation that was found. This is due to the fact that the standard library now has `impl<'_, T> !Clone for &'_ mut T`, and explicit negative polarity implementations were not filtered out in diagnostic output when suggesting similar implementations.

This PR fixes this issue by filtering out negative polarity trait implementations in `find_similar_impl_candidates` within `rustc_trait_selection::traits::error_reporting::InferCtxtPrivExt<'tcx>`. It also adds a UI regression test for this issue and fixes UI tests that had incorrectly been modified to expect the invalid output.

r? `@scottmcm`
2020-12-02 07:37:40 +00:00
Yuki Okushi
cdcce11504 Tweak diagnostics on shadowing lifetimes/labels 2020-12-02 11:39:42 +09:00
bors
eb4860c7e1 Auto merge of #78864 - Mark-Simulacrum:warn-on-forbids, r=pnkfelix
Use true previous lint level when detecting overriden forbids

Previously, cap-lints was ignored when checking the previous forbid level, which
meant that it was a hard error to do so. This is different from the normal
behavior of lints, which are silenced by cap-lints; if the forbid would not take
effect regardless, there is not much point in complaining about the fact that we
are reducing its level.

It might be considered a bug that even `--cap-lints deny` would suffice to
silence the error on overriding forbid, depending on if one cares about failing
the build or precisely forbid being set. But setting cap-lints to deny is quite
odd and not really done in practice, so we don't try to handle it specially.

This also unifies the code paths for nested and same-level scopes. However, the
special case for CLI lint flags is left in place (introduced by #70918) to fix
the regression noted in #70819. That means that CLI flags do not lint on forbid
being overridden by a non-forbid level. It is unclear whether this is a bug or a
desirable feature, but it is certainly inconsistent. CLI flags are a
sufficiently different "type" of place though that this is deemed out of scope
for this commit.

r? `@pnkfelix` perhaps?

cc #77713 -- not marking as "Fixes" because of the lack of proper unused attribute handling in this PR
2020-12-02 02:07:45 +00:00
bors
18aa5ee209 Auto merge of #79614 - GuillaumeGomez:rollup-15usd7e, r=GuillaumeGomez
Rollup of 3 pull requests

Successful merges:

 - #79508 (Warn if `dsymutil` returns an error code)
 - #79509 (Improve attribute message error spans)
 - #79600 (std::io: Use sendfile for UnixStream)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2020-12-01 23:44:25 +00:00
Guillaume Gomez
3d631b094b
Rollup merge of #79509 - GuillaumeGomez:improve-attr-spans, r=oli-obk
Improve attribute message error spans

I got the idea while working on https://github.com/rust-lang/rust/pull/79464
2020-12-01 23:46:11 +01:00
Guillaume Gomez
8b0c31d492
Rollup merge of #79508 - jryans:check-dsymutil-result, r=nagisa
Warn if `dsymutil` returns an error code

This checks the error code returned by `dsymutil` and warns if it failed. It
also provides the stdout and stderr logs from `dsymutil`, similar to the native
linker step.

I tried to think of ways to test this change, but so far I haven't found a good way, as you'd likely need to inject some nonsensical args into `dsymutil` to induce failure, which feels too artificial to me. Also, https://github.com/rust-lang/rust/issues/79361 suggests Rust is on the verge of disabling `dsymutil` by default, so perhaps it's okay for this change to be untested. In any case, I'm happy to add a test if someone sees a good approach.

Fixes https://github.com/rust-lang/rust/issues/78770
2020-12-01 23:46:09 +01:00
bors
6645da366e Auto merge of #78684 - devsnek:inline-asm-wasm, r=Amanieu
Add wasm32 support to inline asm

There is some contention around inline asm and wasm, and I really only made this to figure out the process of hacking on rustc, but I figured as long as the code existed, it was worth uploading.

cc `@Amanieu`
2020-12-01 20:23:06 +00:00
ThePuzzlemaker
3c4bc8c8ad
Ignore trait implementations with negative polarity when suggesting trait implementations in diagnostics 2020-12-01 13:30:08 -06:00
Gus Caplan
d9f237caa6
Add wasm32 support to inline asm 2020-12-01 12:18:21 -06:00
Joshua Nelson
878cfb5a4a Fix unknown-crate when using self-profile with rustdoc
... by removing a duplicate `crate_name` field in `interface::Config`,
making it clear that rustdoc should be passing it to `config::Options`
instead.
2020-12-01 12:54:03 -05:00
Guillaume Gomez
a2d1254e22 Add documentation for name_value_literal_span methods 2020-12-01 17:32:14 +01:00
Guillaume Gomez
63816da5ed Improve some attributes error spans 2020-12-01 16:26:51 +01:00