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Print artifact sizes in `opt-dist`
The Python PGO script printed a nice table of artifact sizes (`librustc_driver.so`, `libLLVM.so`, ...) at the end of the CI run, which was useful to quickly see the sizes of important files. I forgot to port this functionality into the Rust (`opt-dist`) version in https://github.com/rust-lang/rust/pull/112235. This PR fixes that.
r? bootstrap
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Bump bootstrap to 1.72 beta
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Allow to have `-` in rustdoc-json test file name
I extracted this commit from https://github.com/rust-lang/rust/pull/113574.
When I added the test, it kept saying that the JSON file couldn't be found. After investigating for a while, I discovered that we were expecting files to always use `_`, which is quite bad. So I added support for `-` in file names.
r? ``@notriddle``
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Test simd-wide-sum for codegen error
This adds the necessary test infrastructure to "build-pass" codegen tests, for the purpose of doing that for a single revision of a codegen test. When mir-opts are tested, the output may vary from the usual, and maybe for positive reasons... but we don't necessarily want to output such bad LLVMIR that LLVM starts crashing on it.
Currently when enabling MIR opts at higher levels this LLVMIR is still emitted, but it was previously disabled for getting in mir-opt's way and as this new revision without `// [mir-opt3]build-pass` would make it more likely to, I would like to not see the testing for the actual results regress again just because it was bundled with an ICE check as well.
This fixes https://github.com/rust-lang/rust/issues/98016
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Update cargo
10 commits in 45782b6b8afd1da042d45c2daeec9c0744f72cc7..694a579566a9a1482b20aff8a68f0e4edd99bd28
2023-07-05 16:54:51 +0000 to 2023-07-11 22:28:29 +0000
- fix(embedded): Always generate valid package names (rust-lang/cargo#12349)
- fix(embedded): Error on unsupported commands (rust-lang/cargo#12350)
- chore(ci): Automatically test new packages by using `--workspace` (rust-lang/cargo#12342)
- contrib docs: Add some more detail about how publishing works (rust-lang/cargo#12344)
- docs: Put cargo-add change under nightly (rust-lang/cargo#12343)
- Minor: Use "number" instead of "digit" when explaining Cargo's use of semver (rust-lang/cargo#12340)
- Update criterion (rust-lang/cargo#12338)
- Add profile strip to config docs. (rust-lang/cargo#12337)
- update re: multiple versions that differ only in the metadata tag (rust-lang/cargo#12335)
- doc: state `PackageId`/`SourceId` string is opaque (rust-lang/cargo#12313)
r? ``@ghost``
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Implement selection for `Unsize` for better coercion behavior
In order for much of coercion to succeed, we need to be able to deal with partial ambiguity of `Unsize` traits during selection. However, I pessimistically implemented selection in the new trait solver to just bail out with ambiguity if it was a built-in impl:
https://github.com/rust-lang/rust/blob/9227ff28aff55b252314076fcf21c9a66f10ac1e/compiler/rustc_trait_selection/src/solve/eval_ctxt/select.rs#L126
This implements a proper "rematch" procedure for dealing with built-in `Unsize` goals, so that even if the goal is ambiguous, we are able to get nested obligations which are used in the coercion selection-like loop:
https://github.com/rust-lang/rust/blob/9227ff28aff55b252314076fcf21c9a66f10ac1e/compiler/rustc_hir_typeck/src/coercion.rs#L702
Second commit just moves a `resolve_vars_if_possible` call to fix a bug where we weren't detecting a trait upcasting to occur.
r? ``@lcnr``
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Ignore flaky clippy tests.
These tests are frequently failing due to an issue in ui_test. ui_test doesn't appear to have a blanket ignore instruction that I could find, so I just approximated it with ignoring both 32 and 64 bit.
Fixes #113585
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r=oli-obk
(re-)tighten sourceinfo span of adjustments in MIR
Diagnostics rely on the spans of MIR statements being (approximately) correct in order to give suggestions relative to that span (i.e. `shrink_to_hi` and `shrink_to_lo`).
I discovered that we're *intentionally* lowering THIR exprs with their parent expr's span if they come from adjustments that are due to a parent expression. While I understand why that may be desirable to demonstrate the relationship of an adjustment and the expression that requires it, it leads to
1. very verbose borrowck output
2. incorrect spans for suggestions
Some diagnostics get around that by giving suggestions relative to other spans we've collected during MIR lowering, such as the span of the method's identifier (e.g. `name` in `.name()`), but this doesn't work too well when things come from desugaring.
I assume it also has lead to numerous tweaks and complications to diagnostics code down the road, which this PR doesn't necessarily aim to fix but may open the gates to fixing later... The last three commits are simplifications due to the fact that we can assume that the move span actually points to what is being moved (and a test).
This regressed in #89110, which was debated somewhat in #90286. cc `@Aaron1011` who originally made this change.
r? diagnostics
Fixes #113547
Fixes #111016
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miri: protect Move() function arguments during the call
This gives `Move` operands a meaning specific to function calls:
- for the duration of the call, the place the operand comes from is protected, making all read and write accesses insta-UB.
- the contents of that place are reset to `Uninit`, so looking at them again after the function returns, we cannot observe their contents
Turns out we can replace the existing "retag return place" hack with the exact same sort of protection on the return place, which is nicely symmetric.
Fixes https://github.com/rust-lang/rust/issues/112564
Fixes https://github.com/rust-lang/miri/issues/2927
This starts with a Miri rustc-push, since we'd otherwise conflict with a PR that recently landed in Miri.
(The "miri tree borrows" commit is an unrelated cleanup I noticed while doing the PR. I can remove it if you prefer.)
r? `@oli-obk`
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various download-rustc fixes
separated out from https://github.com/rust-lang/rust/pull/112143 because it keeps getting stuck in limbo.
best reviewed commit-by-commit
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This was not the correct fix. The problem was two-fold:
- `download-rustc` didn't respect `llvm.assertions`
- `rust-dev` was missing a bump to `download-ci-llvm-stamp`
The first is fixed in this PR and the latter was fixed a while ago. Revert this change to avoid breaking `rpath = false`.
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Uplift `clippy::fn_null_check` lint
This PR aims at uplifting the `clippy::fn_null_check` lint into rustc.
## `incorrect_fn_null_checks`
(warn-by-default)
The `incorrect_fn_null_checks` lint checks for expression that checks if a function pointer is null.
### Example
```rust
let fn_ptr: fn() = /* somehow obtained nullable function pointer */
if (fn_ptr as *const ()).is_null() { /* ... */ }
```
### Explanation
Function pointers are assumed to be non-null, checking for their nullity is incorrect.
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Mostly followed the instructions for uplifting a clippy lint described here: https://github.com/rust-lang/rust/pull/99696#pullrequestreview-1134072751
`@rustbot` label: +I-lang-nominated
r? compiler
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The already-small RLS shim can get a little smaller, and faster to
build, if we drop the serde-derive dependency and decode the one
"method" field it needs manually from `serde_json::Value`.
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This crate doesn't exist anymore.
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move personality to sys
this moves `personality` to sys, removing another PAL exception
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move pal cfgs in f32 and f64 to sys
I'd like to push forward on `sys` being a separate crate. To start with, most of these PAL exception cases are very simple little bits of code like this, so I thought I would try tidying them up.
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update Miri
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Update debuginfo test runner to provide more useful output
This change makes debuginfo tests more user friendly. Changes:
- Print all lines that fail to match the patterns instead of just the first
- Provide better error messages that also say what did match
- Strip leading whitespace from directives so they are not skipped if indented
- Improve documentation and improve nesting on some related items
As an example, given the following intentional fail (and a few not shown):
```rust
// from tests/debuginfo/rc_arc.rs
// cdb-command:dx rc,d
// cdb-check:rc,d : 111 [Type: alloc::rc::Rc<i32>]
// cdb-check: [Reference count] : 11 [Type: core::cell FAIL::Cell<usize>]
// cdb-check: [Weak reference count] : 2 [Type: core::cell FAIL::Cell<usize>]
```
The current output (tested in #113313) will show:
```
2023-07-04T08:10:00.1939267Z ---- [debuginfo-cdb] tests\debuginfo\rc_arc.rs stdout ----
2023-07-04T08:10:00.1942182Z
2023-07-04T08:10:00.1957463Z error: line not found in debugger output: [Reference count] : 11 [Type: core:: cell FAIL::Cell<usize>]
2023-07-04T08:10:00.1958272Z status: exit code: 0
```
With this chane, you are able to see all failures in that check group, as well as what parts were successful. The output is now:
```
2023-07-04T09:45:57.2514224Z error: check directive(s) from `C:\a\rust\rust\tests\debuginfo\rc_arc.rs` not found in debugger output. errors:
2023-07-04T09:45:57.2514631Z (rc_arc.rs:31) ` [Reference count] : 11 [Type: core::cell FAIL::Cell<usize>]`
2023-07-04T09:45:57.2514908Z (rc_arc.rs:32) ` [Weak reference count] : 2 [Type: core::cell FAIL::Cell<usize>]`
2023-07-04T09:45:57.2515181Z (rc_arc.rs:41) ` [Reference count] : 21 [Type: core::sync::atomic FAIL::AtomicUsize]`
2023-07-04T09:45:57.2515452Z (rc_arc.rs:50) `dyn_rc,d [Type: alloc::rc::Rc<dyn$<core::fmt FAIL::Debug> >]`
2023-07-04T09:45:57.2515695Z the following subset of check directive(s) was found successfully::
2023-07-04T09:45:57.2516080Z (rc_arc.rs:30) `rc,d : 111 [Type: alloc::rc::Rc<i32>]`
2023-07-04T09:45:57.2516312Z (rc_arc.rs:35) `weak_rc,d : 111 [Type: alloc::rc::Weak<i32>]`
2023-07-04T09:45:57.2516555Z (rc_arc.rs:36) ` [Reference count] : 11 [Type: core::cell::Cell<usize>]`
2023-07-04T09:45:57.2516881Z (rc_arc.rs:37) ` [Weak reference count] : 2 [Type: core::cell::Cell<usize>]`
...
```
Which makes it easier to see what did and didn't succeed without manual comparison against the source test file.
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Port PGO/LTO/BOLT optimized build pipeline to Rust
This PR ports the `stage-build.py` PGO/LTO/BOLT optimization script from Python to Rust, to make it easier to use dependencies, and make it a bit more robust. The PR switches both the Linux and Windows dist runners to the Rust script and removes the old Python script.
Funnily enough, the Rust port has less lines of code than the Python script :) I think that clearly shows that the Python script really lacked dependencies.
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Update rustix
The issue has been fixed.
https://github.com/bytecodealliance/rustix/issues/716
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Fail the build if clippy tests don't pass
This was removed in
https://github.com/rust-lang/rust/pull/113260/commits/de69d556eb5006a21f868b8c12d48f0ef1308a5a#diff-8479eab02701e686aedb15b567dc8fc31220c6e4efb9565ccc9d662b7fee2214 which caused CI to ignore clippy failures. This adds back the exit, which should cause CI to fail again if a test is broken (like right now, as clippy tests are broken on master).
Also see https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler/topic/CI.20doesn't.20care.20about.20clippy.20test.20failures.20but.20only.20sometime
r? flip1995
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It fails CI and passes locally. It passes random directores in
`-Cincremental` so maybe something's up. It shouldn't block us here.
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Nilstrieb:pointer-coercions-are-not-casts-because-that-sounds-way-to-general-aaaa, r=oli-obk
Rename `adjustment::PointerCast` and variants using it to `PointerCoercion`
It makes it sounds like the `ExprKind` and `Rvalue` are supposed to represent all pointer related casts, when in reality their just used to share a little enum variants. Make it clear there these are only coercions and that people who see this and think "why are so many pointer related casts not in these variants" aren't insane.
This enum was added in #59987. I'm not sure whether the variant sharing is actually worth it, but this at least makes it less confusing.
r? oli-obk
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Update cargo
1 commits in 5b377cece0e0dd0af686cf53ce4637d5d85c2a10..45782b6b8afd1da042d45c2daeec9c0744f72cc7
2023-06-30 00:01:00 +0000 to 2023-07-05 16:54:51 +0000
- docs(ref): Provide guidance on version requirements (rust-lang/cargo#12323)
r? ``@ghost``
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miri: check that assignments do not self-overlap
r? `````@oli-obk`````
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Comments out the C string literals due to https://github.com/rust-lang/rust/pull/113334
Fixes https://github.com/rust-lang/rust-clippy/issues/11121
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It makes it sound like the `ExprKind` and `Rvalue` are supposed to represent all pointer related
casts, when in reality their just used to share a some enum variants. Make it clear there these
are only coercion to make it clear why only some pointer related "casts" are in the enum.
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