Dylan DPC
3ad81e0dd8
Rollup merge of #93628 - est31:stabilize_let_else, r=joshtriplett
...
Stabilize `let else`
🎉 **Stabilizes the `let else` feature, added by [RFC 3137](https://github.com/rust-lang/rfcs/pull/3137 ).** 🎉
Reference PR: https://github.com/rust-lang/reference/pull/1156
closes #87335 (`let else` tracking issue)
FCP: https://github.com/rust-lang/rust/pull/93628#issuecomment-1029383585
----------
## Stabilization report
### Summary
The feature allows refutable patterns in `let` statements if the expression is
followed by a diverging `else`:
```Rust
fn get_count_item(s: &str) -> (u64, &str) {
let mut it = s.split(' ');
let (Some(count_str), Some(item)) = (it.next(), it.next()) else {
panic!("Can't segment count item pair: '{s}'");
};
let Ok(count) = u64::from_str(count_str) else {
panic!("Can't parse integer: '{count_str}'");
};
(count, item)
}
assert_eq!(get_count_item("3 chairs"), (3, "chairs"));
```
### Differences from the RFC / Desugaring
Outside of desugaring I'm not aware of any differences between the implementation and the RFC. The chosen desugaring has been changed from the RFC's [original](https://rust-lang.github.io/rfcs/3137-let-else.html#reference-level-explanations ). You can read a detailed discussion of the implementation history of it in `@cormacrelf` 's [summary](https://github.com/rust-lang/rust/pull/93628#issuecomment-1041143670 ) in this thread, as well as the [followup](https://github.com/rust-lang/rust/pull/93628#issuecomment-1046598419 ). Since that followup, further changes have happened to the desugaring, in #98574 , #99518 , #99954 . The later changes were mostly about the drop order: On match, temporaries drop in the same order as they would for a `let` declaration. On mismatch, temporaries drop before the `else` block.
### Test cases
In chronological order as they were merged.
Added by df9a2e0687#87688 ):
* [`ui/pattern/usefulness/top-level-alternation.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/pattern/usefulness/top-level-alternation.rs ) to ensure the unreachable pattern lint visits patterns inside `let else`.
Added by 5b95df4bdc#87688 ):
* [`ui/let-else/let-else-bool-binop-init.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/let-else/let-else-bool-binop-init.rs ) to ensure that no lazy boolean expressions (using `&&` or `||`) are allowed in the expression, as the RFC mandates.
* [`ui/let-else/let-else-brace-before-else.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/let-else/let-else-brace-before-else.rs ) to ensure that no `}` directly preceding the `else` is allowed in the expression, as the RFC mandates.
* [`ui/let-else/let-else-check.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/let-else/let-else-check.rs ) to ensure that `#[allow(...)]` attributes added to the entire `let` statement apply for the `else` block.
* [`ui/let-else/let-else-irrefutable.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/let-else/let-else-irrefutable.rs ) to ensure that the `irrefutable_let_patterns` lint fires.
* [`ui/let-else/let-else-missing-semicolon.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/let-else/let-else-missing-semicolon.rs ) to ensure the presence of semicolons at the end of the `let` statement.
* [`ui/let-else/let-else-non-diverging.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/let-else/let-else-non-diverging.rs ) to ensure the `else` block diverges.
* [`ui/let-else/let-else-run-pass.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/let-else/let-else-run-pass.rs ) to ensure the feature works in some simple test case settings.
* [`ui/let-else/let-else-scope.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/let-else/let-else-scope.rs ) to ensure the bindings created by the outer `let` expression are not available in the `else` block of it.
Added by bf7c32a447#89965 ):
* [`ui/let-else/issue-89960.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/let-else/issue-89960.rs ) as a regression test for the ICE-on-error bug #89960 . Later in 102b9125e1856541963c#89974 ):
* [`ui/let-else/let-else-if.rs`](https://github.com/rust-lang/rust/blob/1.58.1/src/test/ui/let-else/let-else-if.rs ) to test for the improved error message that points out that `let else if` is not possible.
Added by 9b45713b6chttps://github.com/rust-lang/rust/blob/1.61.0/src/test/ui/let-else/let-else-allow-unused.rs ) as a regression test for #89807 , to ensure that `#[allow(...)]` attributes added to the entire `let` statement apply for bindings created by the `let else` pattern.
Added by 61bcd8d307#89841 ):
* [`ui/let-else/let-else-non-copy.rs`](https://github.com/rust-lang/rust/blob/1.61.0/src/test/ui/let-else/let-else-non-copy.rs ) to ensure that a copy is performed out of non-copy wrapper types. This mirrors `if let` behaviour. The test case bases on rustc internal changes originally meant for #89933 but then removed from the PR due to the error prior to the improvements of #89841 .
* [`ui/let-else/let-else-source-expr-nomove-pass.rs `](https://github.com/rust-lang/rust/blob/1.61.0/src/test/ui/let-else/let-else-source-expr-nomove-pass.rs ) to ensure that while there is a move of the binding in the successful case, the `else` case can still access the non-matching value. This mirrors `if let` behaviour.
Added by 102b9125e1#89841 ):
* [`ui/let-else/let-else-ref-bindings.rs`](https://github.com/rust-lang/rust/blob/1.61.0/src/test/ui/let-else/let-else-ref-bindings.rs ) and [`ui/let-else/let-else-ref-bindings-pass.rs `](https://github.com/rust-lang/rust/blob/1.61.0/src/test/ui/let-else/let-else-ref-bindings-pass.rs ) to check `ref` and `ref mut` keywords in the pattern work correctly and error when needed.
Added by 2715c5f984#89841 ):
* Match ergonomic tests adapted from the `rfc2005` test suite.
Added by fec8a507a2#89841 ):
* [`ui/let-else/let-else-deref-coercion-annotated.rs`](https://github.com/rust-lang/rust/blob/1.61.0/src/test/ui/let-else/let-else-deref-coercion-annotated.rs ) and [`ui/let-else/let-else-deref-coercion.rs`](https://github.com/rust-lang/rust/blob/1.61.0/src/test/ui/let-else/let-else-deref-coercion.rs ) to check deref coercions.
#### Added since this stabilization report was originally written (2022-02-09)
Added by 76ea566677#94211 ):
* [`ui/let-else/let-else-destructuring.rs`](https://github.com/rust-lang/rust/blob/1.63.0/src/test/ui/let-else/let-else-destructuring.rs ) to give a nice error message if an user tries to do an assignment with a (possibly refutable) pattern and an `else` block, like asked for in #93995 .
Added by e7730dcb7e#94208 ):
* [`ui/let-else/let-else-allow-in-expr.rs`](https://github.com/rust-lang/rust/blob/1.61.0/src/test/ui/let-else/let-else-allow-in-expr.rs ) to test whether `#[allow(unused_variables)]` works in the expr, as well as its non presence, as well as putting it on the entire `let else` *affects* the expr, too. This was adding a missing test as pointed out by the stabilization report.
* Expansion of `ui/let-else/let-else-allow-unused.rs` and `ui/let-else/let-else-check.rs` to ensure that non-presence of `#[allow(unused)]` does issue the unused lint. This was adding a missing test case as pointed out by the stabilization report.
Added by 5bd71063b3#94208 ):
* [`ui/let-else/let-else-slicing-error.rs`](https://github.com/rust-lang/rust/blob/1.61.0/src/test/ui/let-else/let-else-slicing-error.rs ), a regression test for #92069 , which got fixed without addition of a regression test. This resolves a missing test as pointed out by the stabilization report.
Added by 5374688e1d#98574 ):
* [`src/test/ui/async-await/async-await-let-else.rs`](https://github.com/rust-lang/rust/blob/master/src/test/ui/async-await/async-await-let-else.rs ) to test the interaction of async/await with `let else`
Added by 6c529ded86#98574 ):
* [`src/test/ui/let-else/let-else-temporary-lifetime.rs`](https://github.com/rust-lang/rust/blob/master/src/test/ui/let-else/let-else-temporary-lifetime.rs ) as a (partial) regression test for #98672
Added by 9b56640106#99518 ):
* [`src/test/ui/let-else/let-else-temp-borrowck.rs`](https://github.com/rust-lang/rust/blob/master/src/test/ui/let-else/let-else-temporary-lifetime.rs ) as a regression test for #93951
* Extension of `src/test/ui/let-else/let-else-temporary-lifetime.rs` to include a partial regression test for #98672 (especially regarding `else` drop order)
Added by baf9a7cb57#99518 ):
* Extension of `src/test/ui/let-else/let-else-temporary-lifetime.rs` to include a partial regression test for #93951 , similar to `let-else-temp-borrowck.rs`
Added by 60be2de8b7#99518 ):
* Extension of `src/test/ui/let-else/let-else-temporary-lifetime.rs` to include a program that can now be compiled thanks to borrow checker implications of #99518
Added by 47a7a91c96#100132 ):
* [`src/test/ui/let-else/issue-100103.rs`](https://github.com/rust-lang/rust/blob/master/src/test/ui/let-else/issue-100103.rs ), as a regression test for #100103 , to ensure that there is no ICE when doing `Err(...)?` inside else blocks.
Added by e3c5bd617d#100443 ):
* [`src/test/ui/let-else/let-else-then-diverge.rs`](https://github.com/rust-lang/rust/blob/master/src/test/ui/let-else/let-else-then-diverge.rs ), to verify that there is no unreachable code error with the current desugaring.
Added by 981852677c#100443 ):
* [`src/test/ui/let-else/issue-94176.rs`](https://github.com/rust-lang/rust/blob/master/src/test/ui/let-else/issue-94176.rs ), to make sure that a correct span is emitted for a missing trailing expression error. Regression test for #94176 .
Added by e182d12a84#100434 ):
* [src/test/ui/unpretty/pretty-let-else.rs](https://github.com/rust-lang/rust/blob/master/src/test/ui/unpretty/pretty-let-else.rs ), as a regression test to ensure pretty printing works for `let else` (this bug surfaced in many different ways)
Added by e26285603c#99954 ):
* [`src/test/ui/let-else/let-else-temporary-lifetime.rs`](https://github.com/rust-lang/rust/blob/master/src/test/ui/let-else/let-else-temporary-lifetime.rs ) extended to contain & borrows as well, as this was identified as an earlier issue with the desugaring: https://github.com/rust-lang/rust/issues/98672#issuecomment-1200196921
Added by 2d8460ef43#99291 ):
* [`src/test/ui/let-else/let-else-drop-order.rs`](https://github.com/rust-lang/rust/blob/master/src/test/ui/let-else/let-else-drop-order.rs ) a matrix based test for various drop order behaviour of `let else`. Especially, it verifies equality of `let` and `let else` drop orders, [resolving](https://github.com/rust-lang/rust/pull/93628#issuecomment-1238498468 ) a [stabilization blocker](https://github.com/rust-lang/rust/pull/93628#issuecomment-1055738523 ).
Added by 1b87ce0d40#101410 ):
* Edit to `src/test/ui/let-else/let-else-temporary-lifetime.rs` to add the `-Zvalidate-mir` flag, as a regression test for #99228
Added by af591ebe4d#101410 ):
* [`src/test/ui/let-else/issue-99975.rs`](https://github.com/rust-lang/rust/blob/master/src/test/ui/let-else/issue-99975.rs ) as a regression test for the ICE #99975 .
Added by this PR:
* `ui/let-else/let-else.rs`, a simple run-pass check, similar to `ui/let-else/let-else-run-pass.rs`.
### Things not currently tested
* ~~The `#[allow(...)]` tests check whether allow works, but they don't check whether the non-presence of allow causes a lint to fire.~~ → *test added by e7730dcb7eb29a10ee73f269f4dc6e9d606db0da*
* ~~There is no `#[allow(...)]` test for the expression, as there are tests for the pattern and the else block.~~ → *test added by e7730dcb7eb29a10ee73f269f4dc6e9d606db0da*
* ~~`let-else-brace-before-else.rs` forbids the `let ... = {} else {}` pattern and there is a rustfix to obtain `let ... = ({}) else {}`. I'm not sure whether the `.fixed` files are checked by the tooling that they compile. But if there is no such check, it would be neat to make sure that `let ... = ({}) else {}` compiles.~~ → *test added by e7730dcb7eb29a10ee73f269f4dc6e9d606db0da*
* ~~#92069 got closed as fixed, but no regression test was added. Not sure it's worth to add one.~~ → *test added by 5bd71063b3810d977aa376d1e6dd7cec359330cc*
* ~~consistency between `let else` and `if let` regarding lifetimes and drop order: https://github.com/rust-lang/rust/pull/93628#issuecomment-1055738523~~ → *test added by 2d8460ef43d902f34ba2133fe38f66ee8d2fdafc*
Edit: they are all tested now.
### Possible future work / Refutable destructuring assignments
[RFC 2909](https://rust-lang.github.io/rfcs/2909-destructuring-assignment.html ) specifies destructuring assignment, allowing statements like `FooBar { a, b, c } = foo();`.
As it was stabilized, destructuring assignment only allows *irrefutable* patterns, which before the advent of `let else` were the only patterns that `let` supported.
So the combination of `let else` and destructuring assignments gives reason to think about extensions of the destructuring assignments feature that allow refutable patterns, discussed in #93995 .
A naive mapping of `let else` to destructuring assignments in the form of `Some(v) = foo() else { ... };` might not be the ideal way. `let else` needs a diverging `else` clause as it introduces new bindings, while assignments have a default behaviour to fall back to if the pattern does not match, in the form of not performing the assignment. Thus, there is no good case to require divergence, or even an `else` clause at all, beyond the need for having *some* introducer syntax so that it is clear to readers that the assignment is not a given (enums and structs look similar). There are better candidates for introducer syntax however than an empty `else {}` clause, like `maybe` which could be added as a keyword on an edition boundary:
```Rust
let mut v = 0;
maybe Some(v) = foo(&v);
maybe Some(v) = foo(&v) else { bar() };
```
Further design discussion is left to an RFC, or the linked issue.
2022-09-17 15:31:06 +05:30
bors
95a992a686
Auto merge of #97800 - pnkfelix:issue-97463-fix-aarch64-call-abi-does-not-zeroext, r=wesleywiser
...
Aarch64 call abi does not zeroext (and one cannot assume it does so)
Fix #97463
2022-09-16 20:08:05 +00:00
est31
173eb6f407
Only enable the let_else feature on bootstrap
...
On later stages, the feature is already stable.
Result of running:
rg -l "feature.let_else" compiler/ src/librustdoc/ library/ | xargs sed -s -i "s#\\[feature.let_else#\\[cfg_attr\\(bootstrap, feature\\(let_else\\)#"
2022-09-15 21:06:45 +02:00
Your Name
73d6dd5098
Changes to rename target and update docs
2022-09-14 18:38:01 +01:00
Your Name
9025ab7a1f
Add BE8 support
2022-09-13 08:27:48 +01:00
Nicholas Bishop
54d9ba8239
Use RelocModel::Pic for UEFI targets
...
In https://github.com/rust-lang/rust/pull/100537 , the relocation model
for UEFI targets was changed from PIC (the default value) to
static. There was some dicussion of this change here:
https://github.com/rust-lang/rust/pull/100537#discussion_r952363012
It turns out that this can cause compilation to fail as described in
https://github.com/rust-lang/rust/issues/101377 , so switch back to PIC.
Fixes https://github.com/rust-lang/rust/issues/101377
2022-09-09 15:26:19 -04:00
Luis Cardoso
0f06320c24
translations(rustc_session): migrate TargetDataLayout::parse
2022-09-08 08:30:57 +02:00
Michael Benfield
1a08b96a0b
Change name of "dataful" variant to "untagged"
...
This is in anticipation of a new enum layout, in which the niche
optimization may be applied even when multiple variants have data.
2022-09-07 20:12:45 +00:00
Vadim Petrochenkov
a0e21ff105
rustc_target: Refactor internal linker flavors slightly
...
Remove one unstable user-facing linker flavor (l4-bender)
2022-09-01 16:54:52 +03:00
Vadim Petrochenkov
7dc186ff7e
rustc_target: Add a compatibility layer to separate internal and user-facing linker flavors
2022-09-01 16:54:52 +03:00
bors
b32223fec1
Auto merge of #100707 - dzvon:fix-typo, r=davidtwco
...
Fix a bunch of typo
This PR will fix some typos detected by [typos].
I only picked the ones I was sure were spelling errors to fix, mostly in
the comments.
[typos]: https://github.com/crate-ci/typos
2022-09-01 05:39:58 +00:00
bors
aa857eb953
Auto merge of #100537 - petrochenkov:piccheck, r=oli-obk
...
rustc_target: Add some more target spec sanity checking
2022-09-01 03:13:46 +00:00
Dezhi Wu
b1430fb7ca
Fix a bunch of typo
...
This PR will fix some typos detected by [typos].
I only picked the ones I was sure were spelling errors to fix, mostly in
the comments.
[typos]: https://github.com/crate-ci/typos
2022-08-31 18:24:55 +08:00
Matthias Krüger
0fee731a95
Rollup merge of #101025 - semarie:openbsd-archs, r=petrochenkov
...
Add tier-3 support for powerpc64 and riscv64 openbsd
# powerpc64
- MCP for [powerpc64-unknown-openbsd tier-3 support](https://github.com/rust-lang/compiler-team/issues/551 )
- only need to add spec definition in rustc_target
# riscv64
- MCP for [riscv64-unknown-openbsd tier-3 support](https://github.com/rust-lang/compiler-team/issues/552 )
- add spec definition in rustc_target
- follow freebsd about avoiding linking with `libatomic`
2022-08-31 07:57:58 +02:00
Yuki Okushi
9642e4840b
Rollup merge of #101088 - nicholasbishop:bishop-uefi-pdb, r=davidtwco
...
Set DebuginfoKind::Pdb in msvc_base
This PDB setting was added to `windows_msvc_base` in
https://github.com/rust-lang/rust/pull/98051 . It's also needed for the
UEFI targets, and since `uefi_msvc_base` and `windows_msvc_base` are the
only things that inherit from `msvc_base`, just move the PDB setting up
to `mscv_base` to cover both.
Fixes https://github.com/rust-lang/rust/issues/101071
2022-08-31 08:47:18 +09:00
Sébastien Marie
1de5b22678
add riscv64gc-unknown-openbsd support (target riscv64-unknown-openbsd on OpenBSD)
...
- add platform-support documentation
- add riscv64gc-unknown-openbsd spec
- do not try to link with -latomic on openbsd
2022-08-28 05:22:21 +00:00
Sébastien Marie
dacb6ee7b0
add powerpc64-unknown-openbsd support
2022-08-28 05:16:02 +00:00
Nicholas Bishop
1dd47b04c0
Set DebuginfoKind::Pdb in msvc_base
...
This PDB setting was added to `windows_msvc_base` in
https://github.com/rust-lang/rust/pull/98051 . It's also needed for the
UEFI targets, and since `uefi_msvc_base` and `windows_msvc_base` are the
only things that inherit from `msvc_base`, just move the PDB setting up
to `mscv_base` to cover both.
Fixes https://github.com/rust-lang/rust/issues/101071
2022-08-27 11:44:35 -04:00
bors
332cc8fb75
Auto merge of #100999 - nnethercote:shrink-FnAbi, r=bjorn3
...
Shrink `FnAbi`
Because they can take up a lot of memory in debug and release builds.
r? `@bjorn3`
2022-08-27 14:00:53 +00:00
Vadim Petrochenkov
f4b5954764
rustc_target: Use Cow and link args helpers in apple_base
2022-08-27 15:30:05 +03:00
Vadim Petrochenkov
f0d0573db1
rustc_target: Do not specify some target options redundantly
...
These values are already inherited
2022-08-27 15:30:05 +03:00
Vadim Petrochenkov
2e83c22154
rustc_target: Add some more target spec sanity checking
2022-08-27 15:30:05 +03:00
bors
450e99f937
Auto merge of #98051 - davidtwco:split-dwarf-stabilization, r=wesleywiser
...
session: stabilize split debuginfo on linux
Stabilize the `-Csplit-debuginfo` flag...
- ...on Linux for all values of the flag. Split DWARF has been implemented for a few months, hasn't had any bug reports and has had some promising benchmarking for incremental debug build performance.
- ..on other platforms for the default value. It doesn't make any sense that `-Csplit-debuginfo=packed` is unstable on Windows MSVC when that's the default behaviour, but keep the other values unstable.
2022-08-26 15:47:26 +00:00
Sébastien Marie
908ac84662
openbsd: rustc_target: reorder spec by name
2022-08-26 06:15:54 +00:00
Nicholas Nethercote
f974617bda
Move ArgAbi::pad_i32 into PassMode::Cast.
...
Because it's only needed for that variant. This shrinks the types and
clarifies the logic.
2022-08-26 11:12:36 +10:00
Nicholas Nethercote
b853e8a619
Turn ArgAbi::pad into a bool.
...
Because it's only ever set to `None` or `Some(Reg::i32())`.
2022-08-26 10:53:41 +10:00
Nicholas Nethercote
b75b3b3afe
Change FnAbi::args to a boxed slice.
2022-08-26 10:30:36 +10:00
Nicholas Nethercote
4df7bffa95
Change FnAbi::fixed_count to a u32.
2022-08-26 10:29:40 +10:00
Nicholas Nethercote
e4bf113027
Box CastTarget within PassMode.
...
Because `PassMode::Cast` is by far the largest variant, but is
relatively rare.
This requires making `PassMode` not impl `Copy`, and `Clone` is no
longer necessary. This causes lots of sigil adjusting, but nothing very
notable.
2022-08-26 09:35:28 +10:00
Nicholas Nethercote
263c426bfd
Add size assertions for FnAbi and ArgAbi.
2022-08-26 09:30:30 +10:00
Matthias Krüger
44aa866488
Rollup merge of #100641 - corwinkuiper:add-armv4t-target, r=oli-obk
...
Add the armv4t-none-eabi target to the supported_targets
This target was added in #100244 but forgot to add it to the macro in the `mod.rs` file.
``@Lokathor``
2022-08-23 06:55:25 +02:00
Wesley Wiser
ed9b12d7fd
rustdoc doesn't like bare urls
2022-08-22 11:00:54 -04:00
Matthias Krüger
e81b994868
Rollup merge of #100636 - cutsoy:revert-77716, r=davidtwco
...
Revert "Revert "Allow dynamic linking for iOS/tvOS targets.""
This reverts commit 16e10bf81e#77716 ).
The original original PR enabled `cdylib` builds for iOS. However this caused problems because:
> This new feature in Rust 1.46 added a lot of headache for iOS builds with cdylib targets. cdylib target is near impossible to build if you are using any crate with native dependencies (ex. openssl, libsodium, zmq). You can't just find .so files for all architectures to perform correct linking. Usual workflow is the following:
>
> 1. You build staticlib and rely that native dependencies will be linked as frameworks later
> 2. You setup right cocoapods in ObjectiveC/Swift wrapper.
>
> As cargo doesn't support platform-dependent crate types https://github.com/rust-lang/rust/pull/4881 as a result a lot of projects now broken on Rust 1.46
However, this will be soon a thing of the past since 1.64 brings us the long awaited much anticipated `--crate-type` flag.
> I see that this got merged recently: https://github.com/rust-lang/cargo/issues/10083 . The --crate-type flag will get stabilized in 1.64. In 1.64, you could still get a successful iOS staticlib with cargo build --crate-type=statclib even if the crate has cdylib targets too. If I'm not mistaken, this solves the problem too so this PR could be reverted in 1.64 with relatively little headache.
So summing up, I think this PR can be reverted in 1.64. 🤞
2022-08-20 19:45:13 +02:00
5225225
09ea9f0a87
Add diagnostic translation lints to crates that don't emit them
2022-08-18 19:29:02 +01:00
David Wood
cf2c492ef8
session: stabilize split debuginfo on linux
...
Stabilize the `-Csplit-debuginfo` flag...
- ...on Linux for all values of the flag. Split DWARF has been
implemented for a few months, hasn't had any bug reports and has had
some promising benchmarking for incremental debug build performance.
- ..on other platforms for the default value. It doesn't make any sense
that `-Csplit-debuginfo=packed` is unstable on Windows MSVC when
that's the default behaviour, but keep the other values unstable.
Signed-off-by: David Wood <david.wood@huawei.com>
2022-08-18 15:19:40 +01:00
Matthias Krüger
64cd65758c
Rollup merge of #100621 - taiki-e:armv4t-atomics-32, r=cuviper
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Pass +atomics-32 feature for {arm,thumb}v4t-none-eabi
Similar to 89582e8193https://github.com/taiki-e/portable-atomic/pull/28#discussion_r946604136 )
Closes #100619
r? ``@nikic``
cc ``@Lokathor``
2022-08-17 12:32:55 +02:00
Corwin
ed27a4c516
add the armv4t-none-eabi target
2022-08-16 20:10:31 +01:00
Tim van Elsloo
9233298e71
Revert "Revert "Allow dynamic linking for iOS/tvOS targets.""
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This reverts commit 16e10bf81e
2022-08-16 17:36:25 +02:00
Taiki Endo
5bb04f30cb
Support 128-bit atomics on all aarch64 targets
2022-08-16 19:52:19 +09:00
Taiki Endo
8439080f27
Pass +atomics-32 feature for {arm,thumb}v4t-none-eabi
2022-08-16 19:24:12 +09:00
Vadim Petrochenkov
8fa707ab41
rustc_target: Update some old naming around self contained linking
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The "fallback" naming pre-dates introduction of `-Clink-self-contained`
2022-08-12 18:47:13 +03:00
bors
e2b52ff73e
Auto merge of #99464 - nikic:llvm-15, r=cuviper
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Update to LLVM 15
For preliminary testing. Some LLVM 15 compatibility fixes were applied separately in #99512 .
Release timeline:
* LLVM 15 branched on Jul 26.
* The final LLVM 15.0.0 release is scheduled for Sep 6.
* Current nightly (1.65.0) is scheduled for Nov 3.
Changes in this PR (apart from the LLVM update):
* Pass `--set llvm.allow-old-toolchain` for many Docker images. LLVM 16 will require GCC >= 7.1, while LLVM 15 still allows older compilers with an option. Specify the option for builders still using GCC 5.4. #95026 updated some of the used toolchains, but not all.
* Use the `+atomics-32` target feature for thumbv6m.
* Explicitly link libatomic when cross-compiling LLVM to 32-bit target.
* Explicitly disable zstd support, to avoid libzstd.so dependency.
New LLVM patches ([commits](https://github.com/rust-lang/llvm-project/commits/rustc/15.0-2022-08-09 )):
* [rust-only] Fix ICE with GCC 5.4 (15be58d7f0774edc10fa1a6069a7bb493081f2900fc5979d7357bdd9892d9c68b43915639388a05fhttps://github.com/llvm/llvm-project/issues/57021 )
Tested images: dist-x86_64-linux, armhf-gnu, arm-android, dist-s390x-linux, dist-x86_64-illumos, dist-x86_64-freebsd, wasm32, dist-x86_64-musl, dist-various-1, dist-riscv64-linux, dist-mips-linux, dist-mipsel-linux, dist-powerpc-linux, dist-aarch64-linux, dist-x86_64-apple, x86_64-msvc-1, x86_64-msvc-2, dist-various-2, dist-arm-linux
Tested up to the usual ipv6 error: test-various, i686-gnu, x86_64-gnu-nopt
r? `@ghost`
2022-08-12 02:58:51 +00:00
Matthias Krüger
92b32e307c
Rollup merge of #99500 - tmandry:fuchsia-flags, r=petrochenkov
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Fix flags when using clang as linker for Fuchsia
Don't add C runtime or set dynamic linker when linking with clang for
Fuchsia. Clang already does this for us.
2022-08-11 22:52:59 +02:00
Matthias Krüger
6737549aaf
Rollup merge of #99421 - Bryanskiy:android-crt-static, r=petrochenkov
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add crt-static for android
2022-08-11 22:52:58 +02:00
Tyler Mandry
55d5dcb1aa
Fix flags when using clang as linker for Fuchsia
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Don't add C runtime or set dynamic linker when linking with clang for
Fuchsia. Clang already does this for us.
2022-08-10 16:35:27 -07:00
Bryanskiy
874ee5bede
add crt-static for android
2022-08-10 19:42:24 +03:00
Michael Goulet
eae824d5bb
Rollup merge of #100317 - kjetilkjeka:remove-nvptx32-logic, r=eddyb
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Remove logic related to deprecated nvptx-nvidia-cuda (32-bit) target
As described in the MCP https://github.com/rust-lang/compiler-team/issues/496#issuecomment-1196328748
r? ``@eddyb``
2022-08-10 09:28:19 -07:00
Kjetil Kjeka
22930b7b25
Remove logic related to deprecated nvptx-nvidia-cuda (32-bit) target
2022-08-09 13:29:18 +02:00
Nikita Popov
89582e8193
Pass +atomics-32 feature for thumbv6m target
...
https://reviews.llvm.org/D120026 changed atomics on thumbv6m to
use libatomic, to ensure that atomic load/store are compatible with
atomic RMW/CAS. However, Rust wants to expose only load/store
without libcalls.
https://reviews.llvm.org/D130480 added support for this behind
the +atomics-32 target feature, so enable that feature.
2022-08-09 12:39:59 +02:00
Mary
a725250806
Add support for link-flavor rust-lld for macOS
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Also refactor iOS, watchOS and tvOS common code.
2022-08-09 11:04:48 +02:00
