Commit Graph

21783 Commits

Author SHA1 Message Date
Matthias Krüger d8e4d99001 Rollup merge of #107839 - RalfJung:rustc-log, r=oli-obk
avoid duplicating the RUSTC_LOG env var name

We also have the env var name here:
https://github.com/rust-lang/rust/blob/c40919b7a75f93ed7ef040361e82c656d246d41e/compiler/rustc_driver_impl/src/lib.rs#L1247-L1251
Redundantly having this name twice doesn't seem great. Looks like `rustc_log::init_rustc_env_logger` is dead code anyway.

r? `@oli-obk`
2023-02-10 15:28:48 +01:00
Matthias Krüger d494cd3eab Rollup merge of #107836 - chenyukang:yukang/fix-107822, r=oli-obk
Handle properly when there is no crate attrs

Fixes #107822

r? `@oli-obk`
2023-02-10 15:28:47 +01:00
Matthias Krüger dc7559b599 Rollup merge of #107789 - jieyouxu:issue-107745, r=lcnr
Avoid exposing type parameters and implementation details sourced from macro expansions

Fixes #107745.

~~I would like to **request some guidance** for this issue, because I don't think this is a good fix (a band-aid at best).~~

### The Problem

The code

```rust
fn main() {
    println!("{:?}", []);
}
```

gets desugared into (`rustc +nightly --edition=2018 issue-107745.rs -Z unpretty=hir`):

```rust
#[prelude_import]
use std::prelude::rust_2018::*;
#[macro_use]
extern crate std;
fn main() {
        {
                ::std::io::_print(<#[lang = "format_arguments"]>::new_v1(&["",
                                    "\n"], &[<#[lang = "format_argument"]>::new_debug(&[])]));
            };
    }
```

so the diagnostics code tries to be as specific and helpful as possible, and I think it finds that `[]` needs a type parameter and so does `new_debug`. But since `[]` doesn't have an origin for the type parameter definition, it points to `new_debug` instead and leaks the internal implementation detail since all `[]` has is an type inference variable.

### ~~The Bad Fix~~

~~This PR currently tries to fix the problem by bypassing the generated function `<#[lang = "format_argument"]>::new_debug` to avoid its generic parameter (I think it is auto-generated from the argument `[_; 0]`?) from getting collected as an `InsertableGenericArg`. This is problematic because it also prevents the help from getting displayed.~~

~~I think this fix is not ideal and hard-codes the format generated code pattern, but I can't think of a better fix. I have tried asking on Zulip but no responses there yet.~~
2023-02-10 15:28:47 +01:00
Ralf Jung 623ed8e481 fix rustc_log doctest 2023-02-10 15:07:55 +01:00
bors d1ac43a9b9 Auto merge of #107652 - estebank:re_error, r=oli-obk
Introduce `ReError`

CC #69314

r? `@nagisa`
2023-02-10 10:10:12 +00:00
yukang 257389882d add test for no input file 2023-02-10 08:02:56 +00:00
bors 9b8dbd558c Auto merge of #107870 - matthiaskrgr:rollup-3z1q4rm, r=matthiaskrgr
Rollup of 6 pull requests

Successful merges:

 - #107043 (Support `true` and `false` as boolean flag params)
 - #107831 (Query refactoring)
 - #107841 (Handled snap curl issue inside Rust)
 - #107852 (rustdoc: remove unused fn parameter `tab`)
 - #107861 (Sync release notes for 1.67.1)
 - #107863 (Allow multiple candidates with same response in new solver)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2023-02-10 06:20:01 +00:00
Matthias Krüger 9300617dab Rollup merge of #107863 - compiler-errors:new-solver-multiple-candidates, r=jackh726
Allow multiple candidates with same response in new solver

Treat >1 candidates as *not* ambiguous if they return the same response.
2023-02-10 06:09:59 +01:00
Matthias Krüger 11e128025a Rollup merge of #107831 - nnethercote:query-refactoring, r=oli-obk
Query refactoring

Just some cleanups I found when learning about the query system.

Best reviewed one commit at a time.

r? `@oli-obk`
2023-02-10 06:09:57 +01:00
Matthias Krüger 8fc9ed51f0 Rollup merge of #107043 - Nilstrieb:true-and-false-is-false, r=wesleywiser
Support `true` and `false` as boolean flag params

Implements [MCP 577](https://github.com/rust-lang/compiler-team/issues/577).
2023-02-10 06:09:56 +01:00
bors a697573463 Auto merge of #101680 - jackh726:implied-cleanup, r=lcnr
Fix implied outlives bounds logic for projections

The logic here is subtly wrong. I put a bit of an explanation in a767d7b5165cea8ee5cbe494a4a636c50ef67c9c.

TL;DR: we register outlives predicates to be proved, because wf code normalizes projections (from the unnormalized types) to type variables. This causes us to register those as constraints instead of implied. This was "fine", because we later added that implied bound in the normalized type, and delayed registering constraints. When I went to cleanup `free_region_relations` to *not* delay adding constraints, this bug was uncovered.

cc. `@aliemjay` because this caused your test failure in #99832 (I only realized as I was writing this)

r? `@nikomatsakis`
2023-02-10 03:21:39 +00:00
Jack Huey 0637b6b471 Update implied_outlives_bounds to properly register implied bounds behind normalization 2023-02-09 21:08:11 -05:00
Jack Huey 1a663c0f53 Cleanup free_region_relations a bit 2023-02-09 20:38:27 -05:00
Michael Goulet 3c4e1f85cb Multiple candidates with same response is not ambiguous 2023-02-10 00:35:25 +00:00
bors a12d31d5a6 Auto merge of #102963 - ilammy:xray-basic, r=estebank
Add `-Z instrument-xray` flag

Implement MCP https://github.com/rust-lang/compiler-team/issues/561, adding `-Z instrument-xray` flag which enables XRay instrumentation in LLVM.
2023-02-10 00:02:43 +00:00
Dylan DPC b080a1a4fc Rollup merge of #107815 - compiler-errors:new-solver-no-auto-if-impl, r=lcnr
Disqualify `auto trait` built-in impl in new solver if explicit `impl` exists
2023-02-09 23:18:37 +05:30
Dylan DPC 16a4138387 Rollup merge of #107803 - eggyal:do_not_bring_trait_alias_supertraits_into_scope, r=compiler-errors
Do not bring trait alias supertraits into scope

Fixes #107747
cc #41517
2023-02-09 23:18:36 +05:30
Dylan DPC 39ba11036a Rollup merge of #107786 - compiler-errors:new-solver-some-tweaks, r=lcnr
Implement some tweaks in the new solver

I've been testing the new solver on some small codebases, and these are a few small changes I've needed to make.

The most "controversial" here is implementing `trait_candidate_should_be_dropped_in_favor_of`, which I just implemented to always return false. This surprisingly allows some code to compile, without us having to actually decide on any semantics yet.

r? `@rust-lang/initiative-trait-system-refactor`
2023-02-09 23:18:35 +05:30
Dylan DPC 5aa062e249 Rollup merge of #107659 - bvanjoi:issue-107649, r=estebank
test: snapshot for derive suggestion in diff files

fixed #107649
2023-02-09 23:18:35 +05:30
Dylan DPC be1789a56d Rollup merge of #107648 - matthiaskrgr:unused_lifetime_104432_fix, r=cjgillot
unused-lifetimes: don't warn about lifetimes originating from expanded code

previously, we would warn like this:

````
warning: lifetime parameter `'s` never used
 --> /tmp/unusedlif/code.rs:6:62
  |
5 | #[derive(Clone)]
  |          - help: elide the unused lifetime
6 | struct ShimMethod4<T: Trait2 + 'static>(pub &'static dyn for<'s> Fn(&'s mut T::As));
  |                                                              ^^
  |
  = note: requested on the command line with `-W unused-lifetimes`
````

Fixes #104432
2023-02-09 23:18:34 +05:30
Michael Goulet 68e27b3052 Disqualify auto-trait builtin impl in new solver if impl exists 2023-02-09 17:23:50 +00:00
Michael Goulet 654f43f34e Move winnowing to assembly 2023-02-09 17:22:39 +00:00
Michael Goulet 8987e68247 Implement a dummy drop-in-favor-of for the new solver 2023-02-09 17:22:37 +00:00
Michael Goulet 8c67ecd124 Use elaborated item bounds for alias types 2023-02-09 17:16:47 +00:00
Michael Goulet 8dadd54f52 Fix subst issue with object_ty_for_trait 2023-02-09 17:16:47 +00:00
bohan 7615045ebd test: snapshot for derive suggestion in diff files 2023-02-09 22:28:53 +08:00
bors 8cca42a47f Auto merge of #107843 - bjorn3:sync_cg_clif-2023-02-09, r=bjorn3
Sync rustc_codegen_cranelift

* Couple of bugfixes
* A significant runtime perf improvement
* Implemented sym and const support for inline asm
* Improved self profile integration

r? `@ghost`

`@rustbot` label +A-codegen +A-cranelift +T-compiler
2023-02-09 14:12:59 +00:00
bjorn3 e25566e20b Merge commit '7d53619064ab7045c383644cb445052d2a3d46db' into sync_cg_clif-2023-02-09 2023-02-09 12:38:16 +01:00
Esteban Küber 3689295a6b Use ErrorGuaranteed more in ReError 2023-02-09 10:38:45 +00:00
Esteban Küber 3222725538 Fix RegionKind: PartialEq to account for ReError 2023-02-09 10:26:50 +00:00
Esteban Küber ed8651c7b8 Use 'static RegionVid for ReError 2023-02-09 10:26:50 +00:00
Esteban Küber 861f451235 Change to ReError(ErrorGuaranteed) 2023-02-09 10:26:49 +00:00
Esteban Küber ffaf2a5c27 review comments 2023-02-09 10:26:49 +00:00
Esteban Küber 30cf7a3f51 Introduce ReError
CC #69314
2023-02-09 10:26:49 +00:00
Matthias Krüger f2a2e298ba Rollup merge of #107835 - tshepang:fmt, r=WaffleLapkin
use idiomatic formatting

Also, remove needless `else`
2023-02-09 11:21:59 +01:00
Matthias Krüger a621769881 Rollup merge of #107752 - riverar:rafael/gnu_dlltool_temp_prefix, r=petrochenkov
Specify dlltool prefix when generating import libs

Ref: https://github.com/rust-lang/rust/pull/106610#issuecomment-1418221274

tl;dr: This PR adds an explicit dlltool temporary filename prefix. The prefix resolves a race condition by ensuring dlltool temporary files are siloed in an appropriate/unique Rust temporary directory.

---

GNU dlltool, as part of its import library generation logic, uses a bunch of temporary files on disk. In the interest of deterministic build runs, dlltool supports deterministic temporary filenames. The temporary filename prefix is automatically generated internally or can be explicitly specified via a `--temp-prefix` argument.

GNU dlltool **2.38** (that ships with `x86_64-12.2.0-release-posix-seh-rt_v10-rev0` [installed during CI](https://github.com/rust-lang/rust/blob/master/src/ci/scripts/install-mingw.sh)) generates a prefix based on the target library name ([source](https://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=binutils/dlltool.c;h=d95bf3f5470b999fa3b30bc887791859f48d81d1;hb=20756b0fbe065a84710aa38f2457563b57546440#l3992)). The tool writes to files such as `target_dll_h.s` and `target_dll_s00203.o` in the current working directory.

This presents a problem when multiple instances of rustc_codegen_llvm are running to generate an import library (as part of the raw_dylib feature) for the same target library (e.g. kernel32) ([source](https://github.com/rust-lang/rust/blob/master/compiler/rustc_codegen_llvm/src/back/archive.rs#L185-L196)). That is, dlltool instances race and may overwrite or delete files belonging to each other.

GNU dlltool **2.39**+ (not used in Rust CI) generates a prefix based on the output library path ([source](https://sourceware.org/git/?p=binutils-gdb.git;a=blob;f=binutils/dlltool.c;h=e2af20847009945b4c61a6fef08268fbb4429715;hb=b51c2fec1da205ea3e7354cbb3e253018d64873c#l3992)). The tool, when invoked as part of rustc_codegen_llvm, writes to files at paths such as `C_Users_Foo_AppData_Local_Temp_rustcOFqhXZ_target_lib_h.s`. (The output library path is normalized and non-alphanumeric characters are replaced with underscores.)
2023-02-09 11:21:58 +01:00
Matthias Krüger 3b9543c89d Rollup merge of #107446 - clubby789:rustc-parse-diag-migrate, r=compiler-errors
Migrate some of `rustc_parse` to derive diagnostics

`@rustbot` label +A-translation
r? rust-lang/diagnostics
cc #100717
2023-02-09 11:21:57 +01:00
Ralf Jung 569c2fe54b avoid duplicating the RUSTC_LOG env var name 2023-02-09 11:18:21 +01:00
yukang b940f5088e fix #107822, handle properly when there is no crate attrs 2023-02-09 09:11:25 +00:00
Tshepang Mbambo b651679d90 use idiomatic formatting
Also, remove needless else
2023-02-09 10:57:52 +02:00
许杰友 Jieyou Xu (Joe) b58347a9c6 Don't expose type parameters and implementation details from macro expansion 2023-02-09 15:15:15 +08:00
bors c40919b7a7 Auto merge of #106938 - GuillaumeGomez:normalize-projection-field-ty, r=oli-obk
Add missing normalization for union fields types

Overshadows https://github.com/rust-lang/rust/pull/106808.
From the experiment https://github.com/rust-lang/rust/pull/103985.

In short, it allows to use projections as a type for union's fields.

cc `@compiler-errors`
r? `@oli-obk`
2023-02-09 07:08:19 +00:00
Nicholas Nethercote 243944c653 Remove QueryContext.
There is a type `QueryCtxt`, which impls the trait `QueryContext`.
Confusingly, there is another type `QueryContext`. The latter is (like
`TyCtxt`) just a pointer to a `GlobalContext`. It's not used much, e.g.
its `impl` block has a single method.

This commit removes `QueryContext`, replacing its use with direct
`GlobalCtxt` use.
2023-02-09 16:14:51 +11:00
Nicholas Nethercote afbe167fbb Avoid some tls::with calls.
These are in places where a `tcx` is easily obtained.
2023-02-09 15:28:04 +11:00
Nicholas Nethercote 18f751df6a Simplify with_tlv. 2023-02-09 15:26:37 +11:00
Nicholas Nethercote f7b3e39502 Simplify tls::enter_context. 2023-02-09 15:25:45 +11:00
Michael Goulet ab09405e99 Rollup merge of #107813 - compiler-errors:bad-impl-trait-in-macro-is-ok, r=estebank
Do not eagerly recover for bad `impl Trait` types in macros

Fixes #107796

cc #106712, ```@estebank``` and ```@Ezrashaw``` please make sure to use [`Parser::may_recover`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_parse/parser/struct.Parser.html#method.may_recover) for all eager-token-consuming parser recoveries.

This also fixes a separate regression from #99915, that was introduced before we added `may_recover` though.
2023-02-08 20:01:26 -08:00
Michael Goulet 46c7c91ce7 Rollup merge of #107799 - lcnr:update-provisional-result, r=oli-obk
correctly update goals in the cache

we may want to actually write the response for our goal into the provisional or global cache instead of simply using the result from the last iteration '^^

r? ```@rust-lang/initiative-trait-system-refactor```
2023-02-08 20:01:26 -08:00
Michael Goulet 32bb73eede Rollup merge of #107761 - oli-obk:miri_🪵, r=TaKO8Ki
Replace a command line flag with an env var to allow tools to initialize the tracing loggers at their own discretion

fixes https://github.com/rust-lang/miri/issues/2778

this was introduced in https://github.com/rust-lang/rust/pull/104645, so this PR reverts the flag-part and uses an env var instead.
2023-02-08 20:01:25 -08:00
Michael Goulet 04f770839d Rollup merge of #107713 - nnethercote:extend-BYTE_SLICE_IN_PACKED_STRUCT_WITH_DERIVE, r=RalfJung
Extend `BYTE_SLICE_IN_PACKED_STRUCT_WITH_DERIVE`.

To temporarily allow a `str` field in a packed struct using `derive`, along with `[u8]`.

r? ``@RalfJung``
2023-02-08 20:01:25 -08:00