Enable LSX feature for LoongArch Linux targets by heiher · Pull Request #132140 · rust-lang/rust (original) (raw)

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Enable 128-bit vector (LSX) feature for loongarch64-unknown-linux-{gnu, musl} targets.

try-job: dist-loongarch64-linux
try-job: dist-loongarch64-musl

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rustbot added S-waiting-on-review

Status: Awaiting review from the assignee but also interested parties.

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Oct 25, 2024

Some questions:

• What is the availability of the lsx target feature in LLVM?
  • Is it available with all of our LLVM supported versions?
• Does this target feature impacts ABI?
• Do we want to "announce" the change in the relnotes?

Some questions:

* What is the availability of the `lsx` target feature in LLVM?

The lsx target feature is fully available in LLVM, and Clang has it enabled by default.

 * Is it available with all of our LLVM supported versions?

Yes, it is available in all supported versions of LLVM. It was first supported in LLVM 16, which is the version that introduced support for LoongArch.

* Does this target feature impacts ABI?

No, it does not impact the ABI. (Argument passing for SIMD types does not rely on the lsx registers.)

* Do we want to "announce" the change in the relnotes?

Yes.

Thanks for those answers.

Looks go to me, in particular since Clang does indeed enable it by default, I see no reason not to do the same.

r? @Urgau
@rustbot label +relnotes

rustbot added the relnotes

Marks issues that should be documented in the release notes of the next release.

label

Oct 26, 2024

Let's do a try build of the LoongArch builder, in case some of the assembly/codegen changes.
r=me when CI/try is green

@bors try
@bors delegate+

✌️ @heiher, you can now approve this pull request!

If @Urgau told you to "r=me" after making some further change, please make that change, then do @bors r=@Urgau

bors added a commit to rust-lang-ci/rust that referenced this pull request

Oct 26, 2024

Enable LSX feature for LoongArch Linux targets

Enable 128-bit vector (LSX) feature for loongarch64-unknown-linux-{gnu, musl} targets.

try-job: dist-loongarch64-linux try-job: dist-loongarch64-musl

☀️ Try build successful - checks-actions
Build commit: 37fc544 (37fc544de7d0e5ea686cc38150fcc95755c880f3)

📌 Commit baa3b6d has been approved by Urgau

It is now in the queue for this repository.

bors added S-waiting-on-bors

Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

and removed S-waiting-on-review

Status: Awaiting review from the assignee but also interested parties.

labels

Oct 26, 2024

bors added a commit to rust-lang-ci/rust that referenced this pull request

Oct 26, 2024

Rollup of 5 pull requests

Successful merges:

• rust-lang#132124 (coverage: Consolidate creation of covmap/covfun records)
• rust-lang#132140 (Enable LSX feature for LoongArch Linux targets)
• rust-lang#132169 (Deny calls to non-#[const_trait] methods in MIR constck)
• rust-lang#132174 (x86 target features: make pclmulqdq imply sse2)
• rust-lang#132180 (Print unsafety of attribute in AST pretty print)

r? @ghost @rustbot modify labels: rollup

rust-timer added a commit to rust-lang-ci/rust that referenced this pull request

Oct 26, 2024

Rollup merge of rust-lang#132140 - heiher:loong-lsx, r=Urgau

Enable LSX feature for LoongArch Linux targets

Enable 128-bit vector (LSX) feature for loongarch64-unknown-linux-{gnu, musl} targets.

try-job: dist-loongarch64-linux try-job: dist-loongarch64-musl

tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request

Jan 22, 2025

This MR contains the following updates:

MR created with the help of el-capitano/tools/renovate-bot.

Proposed changes to behavior should be submitted there as MRs.

Release Notes

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wip-sync pushed a commit to NetBSD/pkgsrc-wip that referenced this pull request

Feb 2, 2025

Pkgsrc changes:

• Adapt patches, one of the patched files were restructured upstream.
• Checksum changes.

Upstream changes:

Version 1.84.1 (2025-01-30)

• [Fix ICE 132920 in duplicate-crate diagnostics.] (rust-lang/rust#133304)
• [Fix errors for overlapping impls in incremental rebuilds.] (rust-lang/rust#133828)
• [Fix slow compilation related to the next-generation trait solver.] (rust-lang/rust#135618)
• [Fix debuginfo when LLVM's location discriminator value limit is exceeded.] (rust-lang/rust#135643)
• Fixes for building Rust from source:
  • [Only try to distribute llvm-objcopy if llvm tools are enabled.] (rust-lang/rust#134240)
  • [Add Profile Override for Non-Git Sources.] (rust-lang/rust#135433)
  • [Resolve symlinks of LLVM tool binaries before copying them.] (rust-lang/rust#135585)
  • [Make it possible to use ci-rustc on tarball sources.] (rust-lang/rust#135722)

Version 1.84.0 (2025-01-09)

Language

• [Allow #[deny] inside #[forbid] as a no-op] (rust-lang/rust#121560)
• [Show a warning when -Ctarget-feature is used to toggle features that can lead to unsoundness due to ABI mismatches] (rust-lang/rust#129884)
• [Use the next-generation trait solver in coherence] (rust-lang/rust#130654)
• [Allow coercions to drop the principal of trait objects] (rust-lang/rust#131857)
• [Support / as the path separator for include!() in all cases on Windows] (rust-lang/rust#125205)
• [Taking a raw ref (raw (const|mut)) of a deref of a pointer (*ptr) is now safe] (rust-lang/rust#129248)
• [Stabilize s390x inline assembly] (rust-lang/rust#131258)
• [Stabilize Arm64EC inline assembly] (rust-lang/rust#131781)
• [Lint against creating pointers to immediately dropped temporaries] (rust-lang/rust#128985)
• [Execute drop glue when unwinding in an extern "C" function] (rust-lang/rust#129582)

Compiler

• [Add --print host-tuple flag to print the host target tuple and affirm the "target tuple" terminology over "target triple"] (rust-lang/rust#125579)
• [Declaring functions with a calling convention not supported on the current target now triggers a hard error] (rust-lang/rust#129935)
• [Set up indirect access to external data for loongarch64-unknown-linux-{musl,ohos}] (rust-lang/rust#131583)
• [Enable XRay instrumentation for LoongArch Linux targets] (rust-lang/rust#131818)
• [Extend the unexpected_cfgs lint to also warn in external macros] (rust-lang/rust#132577)
• [Stabilize WebAssembly multivalue, reference-types, and tail-call target features] (rust-lang/rust#131080)
• [Added Tier 2 support for the wasm32v1-none target] (rust-lang/rust#131487)

Libraries

• [Implement From<&mut {slice}> for Box/Rc/Arc<{slice}>] (rust-lang/rust#129329)
• [Move <float>::copysign, <float>::abs, <float>::signum to core] (rust-lang/rust#131304)
• [Add LowerExp and UpperExp implementations to NonZero] (rust-lang/rust#131377)
• [Implement FromStr for CString and TryFrom<CString> for String] (rust-lang/rust#130608)
• [std::os::darwin has been made public] (rust-lang/rust#130635)

Stabilized APIs

• [Ipv6Addr::is_unique_local] (https://doc.rust-lang.org/stable/core/net/struct.Ipv6Addr.html#method.is_unique_local)
• [Ipv6Addr::is_unicast_link_local] (https://doc.rust-lang.org/stable/core/net/struct.Ipv6Addr.html#method.is_unicast_link_local)
• [core::ptr::with_exposed_provenance] (https://doc.rust-lang.org/stable/core/ptr/fn.with_exposed_provenance.html)
• [core::ptr::with_exposed_provenance_mut] (https://doc.rust-lang.org/stable/core/ptr/fn.with_exposed_provenance_mut.html)
• [<ptr>::addr] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.addr)
• [<ptr>::expose_provenance] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.expose_provenance)
• [<ptr>::with_addr] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.with_addr)
• [<ptr>::map_addr] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.map_addr)
• [<int>::isqrt] (https://doc.rust-lang.org/stable/core/primitive.i32.html#method.isqrt)
• [<int>::checked_isqrt] (https://doc.rust-lang.org/stable/core/primitive.i32.html#method.checked_isqrt)
• [<uint>::isqrt] (https://doc.rust-lang.org/stable/core/primitive.u32.html#method.isqrt)
• [NonZero::isqrt] (https://doc.rust-lang.org/stable/core/num/struct.NonZero.html#impl-NonZero%3Cu128%3E/method.isqrt)
• [core::ptr::without_provenance] (https://doc.rust-lang.org/stable/core/ptr/fn.without_provenance.html)
• [core::ptr::without_provenance_mut] (https://doc.rust-lang.org/stable/core/ptr/fn.without_provenance_mut.html)
• [core::ptr::dangling] (https://doc.rust-lang.org/stable/core/ptr/fn.dangling.html)
• [core::ptr::dangling_mut] (https://doc.rust-lang.org/stable/core/ptr/fn.dangling_mut.html)

These APIs are now stable in const contexts

• [AtomicBool::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicBool.html#method.from_ptr)
• [AtomicPtr::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicPtr.html#method.from_ptr)
• [AtomicU8::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicU8.html#method.from_ptr)
• [AtomicU16::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicU16.html#method.from_ptr)
• [AtomicU32::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicU32.html#method.from_ptr)
• [AtomicU64::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicU64.html#method.from_ptr)
• [AtomicUsize::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicUsize.html#method.from_ptr)
• [AtomicI8::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicI8.html#method.from_ptr)
• [AtomicI16::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicI16.html#method.from_ptr)
• [AtomicI32::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicI32.html#method.from_ptr)
• [AtomicI64::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicI64.html#method.from_ptr)
• [AtomicIsize::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicIsize.html#method.from_ptr)
• [<ptr>::is_null] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.is_null-1)
• [<ptr>::as_ref] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.as_ref-1)
• [<ptr>::as_mut] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.as_mut)
• [Pin::new] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.new)
• [Pin::new_unchecked] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.new_unchecked)
• [Pin::get_ref] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.get_ref)
• [Pin::into_ref] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.into_ref)
• [Pin::get_mut] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.get_mut)
• [Pin::get_unchecked_mut] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.get_unchecked_mut)
• [Pin::static_ref] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.static_ref)
• [Pin::static_mut] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.static_mut)

Cargo

• [Stabilize MSRV-aware resolver config] (rust-lang/cargo#14639)
• [Stabilize resolver v3] (rust-lang/cargo#14754)

Rustdoc

• [rustdoc-search: improve type-driven search] (rust-lang/rust#127589)

Compatibility Notes

• [Enable by default the LSX target feature for LoongArch Linux targets] (rust-lang/rust#132140)
• The unstable -Zprofile flag ("gcov-style" coverage instrumentation) has been removed. This does not affect the stable flags for coverage instrumentation (-Cinstrument-coverage) and profile-guided optimization (-Cprofile-generate, -Cprofile-use), which are unrelated and remain available.
• Support for the target named wasm32-wasi has been removed as the target is now named wasm32-wasip1. This completes the [transition] (rust-lang/compiler-team#607) plan for this target following [the introduction of wasm32-wasip1] (rust-lang/rust#120468) in Rust 1.78. Compiler warnings on [use of wasm32-wasi] (rust-lang/rust#126662) introduced in Rust 1.81 are now gone as well as the target is removed.
• [The syntax &pin (mut|const) T is now parsed as a type which in theory could affect macro expansion results in some edge cases] (rust-lang/rust#130635 (comment))
• [Legacy syntax for calling std::arch functions is no longer permitted to declare items or bodies (such as closures, inline consts, or async blocks).] (rust-lang/rust#130443 (comment))
• The wasm32-unknown-emscripten target's binary release of the standard library is now [built with the latest emsdk 3.1.68] (rust-lang/rust#131533), which fixes an ABI-incompatibility with Emscripten >= 3.1.42. If you are locally using a version of emsdk with an incompatible ABI (e.g. before 3.1.42 or a future one), you should build your code with -Zbuild-std to ensure that std uses the correct ABI.
• [Declaring functions with a calling convention not supported on the current target now triggers a hard error] (rust-lang/rust#129935)
• [The next-generation trait solver is now enabled for coherence, fixing multiple soundness issues] (rust-lang/rust#130654)

Labels

relnotes

Marks issues that should be documented in the release notes of the next release.

S-waiting-on-bors

Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

T-compiler

Relevant to the compiler team, which will review and decide on the PR/issue.