rename 'try' intrinsic to 'catch_unwind'
The intrinsic has nothing to do with `try` blocks, and corresponds to the stable `catch_unwind` function, so this makes a lot more sense IMO.
Also rename Miri's special function while we are at it, to reflect the level of abstraction it works on: it's an unwinding mechanism, on which Rust implements panics.
Rollup of 6 pull requests
Successful merges:
- #121389 (llvm-wrapper: fix few warnings)
- #121493 (By changing some attributes to only_local, reducing encoding attributes in the crate metadate.)
- #121615 (Move `emit_stashed_diagnostic` call in rustfmt.)
- #121617 (Actually use the right closure kind when checking async Fn goals)
- #121628 (Do not const prop unions)
- #121629 (fix some references to no-longer-existing ReprOptions.layout_seed)
r? `@ghost`
`@rustbot` modify labels: rollup
Move `emit_stashed_diagnostic` call in rustfmt.
This call was added to `parse_crate_mod` in #121487, to fix a case where a stashed diagnostic wasn't emitted. But there is another path where a stashed diagnostic might fail to be emitted if there's a parse error, if the `build` call in `parse_crate_inner` fails before `parse_crate_mod` is reached.
So this commit moves the `emit_stashed_diagnostic` call outwards, from `parse_crate_mod` to `format_project`, just after the `Parser::parse_crate` call. This should be far out enough to catch any parsing errors.
Fixes#121517.
r? `@oli-obk`
cc `@ytmimi`
Correctly handle if rustdoc JS script hash changed
It's something that annoyed me for quite some time: I have nightly docs open (for both std and compiler). And often, I don't look at the page for some days. Then when I come back to it, I make a search... except nothing happens. Took me a while to figure out that it was because the hash of one of the JS files we load for the search (either `search.js` or `search-index.js`) was updated in the meantime, preventing the search to be done. To go around it, I added to press `ENTER` to make the form submitted (which would reload the same page but with the correct hashes this time and the search being run).
r? `@notriddle`
Allow tests to specify a `//@ filecheck-flags:` header
This allows individual codegen/assembly/mir-opt tests to pass extra flags to the LLVM `filecheck` tool as needed.
---
The original motivation was noticing that `tests/run-make/instrument-coverage` was very close to being an ordinary codegen test, except that it needs some extra logic to set up platform-specific variables to be passed into filecheck.
I then saw the comment in `verify_with_filecheck` indicating that a `filecheck-flags` header might be useful for other purposes as well.
This call was added to `parse_crate_mod` in #121487, to fix a case where
a stashed diagnostic wasn't emitted. But there is another path where a
stashed diagnostic might fail to be emitted if there's a parse error, if
the `build` call in `parse_crate_inner` fails before `parse_crate_mod`
is reached.
So this commit moves the `emit_stashed_diagnostic` call outwards, from
`parse_crate_mod` to `format_project`, just after the
`Parser::parse_crate` call. This should be far out enough to catch any
parsing errors.
Fixes#121517.
Improvements to building and CI for mingw/msys
I was getting error messages when trying to follow the build instructions the mingw build for Rust, and managed to track the issue down to an incomparability of Rust's bootstrap program with MSYS2's version of git. Essentially, the problem is that MSYS2's git works in emulated unix-y paths, but bootstrap expects a Windows path. I found a workaround for this by using relative paths instead of absolute paths.
Along with that fix, this PR also updates the build instructions for MinGW to be compatible with modern versions of MSYS2, and some changes to CI to make sure that MSYS2's version of git is tested. In particular, I'm suggesting using the [MSYS2 github action](https://github.com/marketplace/actions/setup-msys2) specially made for this purpose, which is much less hacky than the old approach and gives us more control of what packages are installed. I also cleaned up as many alternate versions of key tools as I could find from PATH, to avoid accidental usage, and cleaned up some abuses of the `CUSTOM_MINGW` environment variable.
This fixes https://github.com/rust-lang/rust/issues/105696 and fixes https://github.com/rust-lang/rust/issues/117567
Make most bootstrap step types !Copy
This makes all bootstrap types except for `Compiler` and `TargetSelection` `!Copy`. This makes it easier to modify them by adding !Copy types in the future, something that `@saethlin` has complained about before, and comes at no cost of code clarity, the impls were completely unused.
Making `Compiler` and `TargetSelection` `!Copy` (which would allow getting rid of interning) is highly nontrivial as they are used and copied **all over the place**. This should hopefully get most of the benefits.
Add newtypes for bool fields/params/return types
Fixed all the cases of this found with some simple searches for `*/ bool` and `bool /*`; probably many more
Windows: Use ProcessPrng for random keys
Windows 10 introduced [`ProcessPrng`](https://learn.microsoft.com/en-us/windows/win32/seccng/processprng) for random number generation. This allows us to replace the overly complicated (and prone to failure) `BCryptGenRandom` with a documented function.
For the tier 3 Windows 7 target, we simply use the older `RtlGenRandom`, which is undocumented. It should be fine even on modern systems (for comparability reasons) as it's just a wrapper for `ProcessPrng`. However, it does require loading an extra intermediary DLL which we can avoid when we know we have Windows 10+.
speed up `x install` by skipping archiving and compression
Performing archiving and compression on `x install` is nothing more than a waste of time and resources. Additionally, for systems like gentoo(which uses `x install`) this should be highly beneficial.
[benchmark report](https://github.com/rust-lang/rust/pull/118724#issuecomment-1848964908)
Resolves#109308
r? Mark-Simulacrum (I think you want to review this, feel free to change it if otherwise.)
This makes all bootstrap types except for `Compiler` and
`TargetSelection` `!Copy`. This makes it easier to modify them by adding
!Copy types in the future and comes at no cost of code clarity, the
impls were completely unused.
