Commit graph

151203 commits

Author SHA1 Message Date
Ralf Jung 5f0dd6db94 remove const_raw_ptr_to_usize_cast feature 2021-07-10 12:08:58 +02:00
bors a84d1b21ae Auto merge of #86987 - lcnr:const-default-eval-bound, r=oli-obk
only check cg defaults wf once instantiated

the previous fixmes here didn't make too much sense as I didn't yet fully understand the code further below.
That code only runs if the predicates using our generic param default are fully concrete after substituting our default, which never happens if our default is generic.

r? `@oli-obk` `@BoxyUwU`
2021-07-10 06:01:04 +00:00
bors 8eae2eb1d3 Auto merge of #86968 - inquisitivecrystal:missing-docs-v2, r=oli-obk
Remove `missing_docs` lint on private 2.0 macros

798baebde1/compiler/rustc_lint/src/builtin.rs (L573-L584)

This code is the source of #57569. The problem is subtle, so let me point it out. This code makes the mistake of assuming that all of the macros in `krate.exported_macros` are exported.

...Yeah. For some historical reason, all `macro` macros are marked as exported, regardless of whether they actually are, which is dreadfully confusing. It would be more accurate to say that `exported_macros` currently contains only macros that have paths.

This PR renames `exported_macros` to `importable_macros`, since these macros can be imported with `use` while others cannot. It also fixes the code above to no longer lint on private `macro` macros, since the `missing_docs` lint should only appear on exported items.

Fixes #57569.
2021-07-10 03:32:42 +00:00
bors 8d9d4c87d6 Auto merge of #86419 - ricobbe:raw-dylib-stdcall, r=petrochenkov
Add support for raw-dylib with stdcall, fastcall functions

Next stage of work for #58713: allow `extern "stdcall"` and `extern "fastcall"` with `#[link(kind = "raw-dylib")]`.

I've deliberately omitted support for vectorcall, as that doesn't currently work, and I wanted to get this out for review.  (I haven't really investigated the vectorcall failure much yet, but at first (very cursory) glance it appears that the problem is elsewhere.)
2021-07-09 23:24:21 +00:00
bors 240ff4c4a0 Auto merge of #85263 - Smittyvb:thir-unsafeck-union-field, r=oli-obk
Check for union field accesses in THIR unsafeck

see also #85259, #83129, https://github.com/rust-lang/project-thir-unsafeck/issues/7

r? `@LeSeulArtichaut`
2021-07-09 20:56:07 +00:00
Smitty b86ed4a425 panic when trying to destructure union as enum 2021-07-09 15:22:12 -04:00
Richard Cobbe a867dd4c7e Add support for raw-dylib with stdcall, fastcall functions on i686-pc-windows-msvc. 2021-07-09 12:04:54 -07:00
bors 3eff244fc7 Auto merge of #85832 - kornelski:raw_arg, r=yaahc
Unescaped command-line arguments for Windows

Some Windows commands, expecially `cmd.exe /c`, have unusual quoting requirements which are incompatible with default rules assumed for `.arg()`.

This adds `.unquoted_arg()` to `Command` via Windows `CommandExt` trait.

Fixes #29494
2021-07-09 18:15:20 +00:00
Smitty df3e003378 Don't stub out part of test 2021-07-09 13:51:30 -04:00
Smitty 74d0d74dae Check for union field accesses in THIR unsafeck 2021-07-09 13:51:28 -04:00
bors 619c27a539 Auto merge of #87003 - m-ou-se:rollup-x7mhv3v, r=m-ou-se
Rollup of 5 pull requests

Successful merges:

 - #86855 (Fix comments about unique borrows)
 - #86881 (Inline implementation of lookup_line)
 - #86937 (Change linked tracking issue for more_qualified_paths)
 - #86994 (Update the comment on `lower_expr_try`)
 - #87000 (Use #[track_caller] in const panic diagnostics.)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2021-07-09 15:34:16 +00:00
Mara Bos 2152c145d3
Rollup merge of #87000 - m-ou-se:const-panic-track-caller, r=oli-obk
Use #[track_caller] in const panic diagnostics.

This change stops const panic diagnostics from reporting inside #[track_caller] functions by skipping over them.
2021-07-09 16:20:36 +02:00
Mara Bos 98f35589f7
Rollup merge of #86994 - scottmcm:fix_expr_try_comment, r=petrochenkov
Update the comment on `lower_expr_try`

I'd updated the ones inside the method, but not its doc comment.
2021-07-09 16:20:35 +02:00
Mara Bos 07b9dae6a2
Rollup merge of #86937 - rylev:tracking-more-qualified-paths, r=nagisa
Change linked tracking issue for more_qualified_paths

This updates the linked tracking issue for the `more_qualified_paths` feature from the implementation PR #80080 to an actual tracking issue #86935.
2021-07-09 16:20:33 +02:00
Mara Bos ad10107600
Rollup merge of #86881 - tmiasko:lookup-line, r=nagisa
Inline implementation of lookup_line

to avoid unnecessary conversions from `Option<usize>` to `isize` and back.
2021-07-09 16:20:32 +02:00
Mara Bos e920ef8785
Rollup merge of #86855 - LeSeulArtichaut:patch-1, r=davidtwco
Fix comments about unique borrows
2021-07-09 16:20:32 +02:00
Kornel bc67f6bc95 Debug formatting of raw_arg() 2021-07-09 14:24:34 +01:00
Mara Bos 0a4b53f57d Use #[track_caller] in const panic diagnostics.
It was already used for the message. This also uses it for the spans
used for the error and backtrace.
2021-07-09 15:23:27 +02:00
Kornel 8f9d0f12eb Use AsRef in CommandExt for raw_arg 2021-07-09 14:09:48 +01:00
Kornel d868da7796 Unescaped command-line arguments for Windows
Fixes #29494
2021-07-09 14:09:48 +01:00
Kornel fcd5cecdcf Test escaping of trialing slashes in Windows command-line args 2021-07-09 14:09:48 +01:00
bors e916b7cb77 Auto merge of #86888 - FabianWolff:issue-86600, r=davidtwco
Fix double warning about illegal floating-point literal pattern

This PR fixes #86600. The problem is that the `ConstToPat` struct contains a field `include_lint_checks`, which determines whether lints should be emitted or not, but this field is currently not obeyed at one point, leading to a warning being emitted more than once. I have fixed this behavior here.
2021-07-09 12:51:02 +00:00
bors ee86f96ba1 Auto merge of #85828 - scottmcm:raw-eq, r=oli-obk
Stop generating `alloca`s & `memcmp` for simple short array equality

Example:
```rust
pub fn demo(x: [u16; 6], y: [u16; 6]) -> bool { x == y }
```

Before:
```llvm
define zeroext i1 `@_ZN10playground4demo17h48537f7eac23948fE(i96` %0, i96 %1) unnamed_addr #0 {
start:
  %y = alloca [6 x i16], align 8
  %x = alloca [6 x i16], align 8
  %.0..sroa_cast = bitcast [6 x i16]* %x to i96*
  store i96 %0, i96* %.0..sroa_cast, align 8
  %.0..sroa_cast3 = bitcast [6 x i16]* %y to i96*
  store i96 %1, i96* %.0..sroa_cast3, align 8
  %_11.i.i.i = bitcast [6 x i16]* %x to i8*
  %_14.i.i.i = bitcast [6 x i16]* %y to i8*
  %bcmp.i.i.i = call i32 `@bcmp(i8*` nonnull dereferenceable(12) %_11.i.i.i, i8* nonnull dereferenceable(12) %_14.i.i.i, i64 12) #2, !alias.scope !2
  %2 = icmp eq i32 %bcmp.i.i.i, 0
  ret i1 %2
}
```
```x86
playground::demo: # `@playground::demo`
	sub	rsp, 32
	mov	qword ptr [rsp], rdi
	mov	dword ptr [rsp + 8], esi
	mov	qword ptr [rsp + 16], rdx
	mov	dword ptr [rsp + 24], ecx
	xor	rdi, rdx
	xor	esi, ecx
	or	rsi, rdi
	sete	al
	add	rsp, 32
	ret
```

After:
```llvm
define zeroext i1 `@_ZN4mini4demo17h7a8994aaa314c981E(i96` %0, i96 %1) unnamed_addr #0 {
start:
  %2 = icmp eq i96 %0, %1
  ret i1 %2
}
```
```x86
_ZN4mini4demo17h7a8994aaa314c981E:
	xor	rcx, r8
	xor	edx, r9d
	or	rdx, rcx
	sete	al
	ret
```
2021-07-09 09:16:27 +00:00
Scott McMurray 099a357e5c Update the comment on lower_expr_try
I'd updated the ones inside the method, but not its doc comment.
2021-07-09 00:13:44 -07:00
bors 95fb131521 Auto merge of #86904 - m-ou-se:prelude-collision-check-trait, r=nikomatsakis
Check FromIterator trait impl in prelude collision check.

Fixes #86902.
2021-07-09 06:35:42 +00:00
inquisitivecrystal b49936c0bf Improve handing of missing_docs for macros 2021-07-08 22:55:04 -07:00
inquisitivecrystal 88fd46e129 Add regression test 2021-07-08 22:54:05 -07:00
inquisitivecrystal 2bcbb25cb5 Remove missing_docs lint on private 2.0 macros 2021-07-08 22:54:01 -07:00
bors b090cd1ea6 Auto merge of #86869 - sexxi-goose:rfc2229-migration-capture-kind, r=nikomatsakis
Account for capture kind in auto traits migration

Modifies the current auto traits migration for RFC2229 so it takes into account capture kind

Closes https://github.com/rust-lang/project-rfc-2229/issues/51

r? `@nikomatsakis`
2021-07-09 03:54:41 +00:00
bors fdfe819580 Auto merge of #86701 - sexxi-goose:optimization, r=nikomatsakis
2229: Reduce the size of closures with `capture_disjoint_fields`

One key observation while going over the closure size profile of rustc
was that we are disjointly capturing one or more fields starting at an
immutable reference.

Disjoint capture over immutable reference doesn't add too much value
because the fields can either be borrowed immutably or copied.

One possible edge case of the optimization is when a fields of a struct
have a longer lifetime than the structure, therefore we can't completely
get rid of all the accesses on top of sharef refs, only the rightmost
one. Here is a possible example:

```rust
struct MyStruct<'a> {
   a: &'static A,
   b: B,
   c: C<'a>,
}

fn foo<'a, 'b>(m: &'a MyStruct<'b>) -> impl FnMut() + 'static {
    let c = || drop(&*m.a.field_of_a);
    // Here we really do want to capture `*m.a` because that outlives `'static`

    // If we capture `m`, then the closure no longer outlives `'static'
    // it is constrained to `'a`
}
```

r? `@nikomatsakis`
2021-07-09 01:13:49 +00:00
Scott McMurray d0644947a3 Bless a UI test 2021-07-08 15:16:37 -07:00
Scott McMurray 07fb5ee78f Adjust the threshold to look at the ABI, not just the size 2021-07-08 14:55:59 -07:00
Scott McMurray 6444f24a29 Use cranelift's Type::int instead of doing the match myself
<https://docs.rs/cranelift-codegen/0.74.0/cranelift_codegen/ir/types/struct.Type.html#method.int>
2021-07-08 14:55:58 -07:00
Scott McMurray 3d2869c6ff PR Feedback: Don't put SSA-only types in CValues 2021-07-08 14:55:58 -07:00
Scott McMurray 039a3bafec Add another codegen test, array_eq_zero
Showing that this avoids an alloca and private constant.
2021-07-08 14:55:58 -07:00
Scott McMurray 12163534a9 Implement the raw_eq intrinsic in codegen_cranelift 2021-07-08 14:55:57 -07:00
Scott McMurray b63b2f1e42 PR feedback
- Add `:Sized` assertion in interpreter impl
- Use `Scalar::from_bool` instead of `ScalarInt: From<bool>`
- Remove unneeded comparison in intrinsic typeck
- Make this UB to call with undef, not just return undef in that case
2021-07-08 14:55:57 -07:00
Scott McMurray 2456495a26 Stop generating allocas+memcmp for simple array equality 2021-07-08 14:55:54 -07:00
Scott McMurray d05eafae2f Move the PartialEq and Eq impls for arrays to a separate file 2021-07-08 14:53:37 -07:00
Tomasz Miąsko 1719d45013 Inline implementation of lookup_line
to simplify the implementation and avoid unnecessary
conversions from `Option<usize>` to `isize` and back.
2021-07-08 23:30:53 +02:00
Roxane 7c15fc16f4 Consider capture kind for auto traits migration 2021-07-08 17:07:53 -04:00
Roxane f5e8a7d398 Add new test case 2021-07-08 17:06:40 -04:00
lcnr 4a53b11518 only check cg defaults wf once instantiated 2021-07-08 22:57:10 +02:00
bors 8b87e85394 Auto merge of #86930 - tspiteri:int_log10, r=kennytm
special case for integer log10

Now that #80918 has been merged, this PR provides a faster version of `log10`.

The PR also adds some tests for values close to all powers of 10.
2021-07-08 20:19:00 +00:00
bors aa65b08b1d Auto merge of #86982 - GuillaumeGomez:rollup-7sbye3c, r=GuillaumeGomez
Rollup of 8 pull requests

Successful merges:

 - #84961 (Rework SESSION_GLOBALS API)
 - #86726 (Use diagnostic items instead of lang items for rfc2229 migrations)
 - #86789 (Update BTreeSet::drain_filter documentation)
 - #86838 (Checking that function is const if marked with rustc_const_unstable)
 - #86903 (Fix small headers display)
 - #86913 (Document rustdoc with `--document-private-items`)
 - #86957 (Update .mailmap file)
 - #86971 (mailmap: Add alternative addresses for myself)

Failed merges:

 - #86869 (Account for capture kind in auto traits migration)

r? `@ghost`
`@rustbot` modify labels: rollup
2021-07-08 17:51:10 +00:00
Niko Matsakis 2083207536
Update src/test/ui/rust-2021/future-prelude-collision-unneeded.rs 2021-07-08 12:31:56 -04:00
Guillaume Gomez 60566820b3
Rollup merge of #86971 - ijackson:mailmap, r=Mark-Simulacrum
mailmap: Add alternative addresses for myself

At least one of these is already in-tree; it seems plausible that the others might appear too.
2021-07-08 18:30:41 +02:00
Guillaume Gomez 58be639142
Rollup merge of #86957 - jhpratt:update-mailmap, r=jyn514
Update .mailmap file
2021-07-08 18:30:40 +02:00
Guillaume Gomez e30eb4d1a2
Rollup merge of #86913 - Stupremee:document-rustdoc-private-items, r=jyn514
Document rustdoc with `--document-private-items`

The `tool_doc` macro introduced in #86737 did not use `false` as the default value for `binary` when it is not provided, so the `if` is not even expanded and thus the argument is never provided if the `binary` argument isn't.

Resolves #86900

r? ```@Mark-Simulacrum```
2021-07-08 18:30:39 +02:00
Guillaume Gomez 46314f7d85
Rollup merge of #86903 - GuillaumeGomez:small-header-display, r=Nemo157
Fix small headers display

You can see it on the `IoSlice` or on the `ErrorKind` pages.

Before:

![Screenshot from 2021-07-06 15-26-33](https://user-images.githubusercontent.com/3050060/124610344-b50a8100-de70-11eb-8ab4-ac5de8adf18f.png)
![Screenshot from 2021-07-08 17-51-43](https://user-images.githubusercontent.com/3050060/124953436-7235de00-e015-11eb-9f99-b361c7eb41a9.png)

After:

![Screenshot from 2021-07-08 17-48-42](https://user-images.githubusercontent.com/3050060/124953042-12d7ce00-e015-11eb-8132-1ae4552dd969.png)
![Screenshot from 2021-07-08 17-48-47](https://user-images.githubusercontent.com/3050060/124953052-13706480-e015-11eb-89f8-dab96c2f0f63.png)

r? `@Nemo157`
2021-07-08 18:30:38 +02:00