stdarch subtree update#159517
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rust-bors[bot] merged 26 commits intoJul 19, 2026
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The `is::`, `cs::`, and `ls::` prefixes were originally used to clearly
distinguish helper intrinsics from different namespaces at call sites.
However, due to limitations in Rust macro expansion, `prefix::simd_xxx`
cannot always be used. Some macro expansions only accept an identifier,
causing errors such as:
```
($ft:literal, $name:ident, $op:path, $oty:ty, $ity:ident) => {
let r: $ity = $op::<IMM, _>(a);
^^ expected one of `.`, `;`, `?`, `else`, or an operator
```
Instead of relying on namespace prefixes, rename the LoongArch-specific
`simd_xxx` helpers to `simd_ext_xxx` and remove the `is::`, `cs::`, and
`ls::` prefixes from macro invocations. This preserves the distinction
between helper intrinsics while avoiding the macro expansion limitation.
Update itertools to 0.15
loongarch: Rename SIMD helper intrinsics to avoid macro path issues
Port stdarch-gen-loongarch to stdarch-gen-common harness
add better test for `permutexvar`
document differences from pure hardware behavior
loongarch: Use `intrinsics::simd` for vldi
Re-enable ICX run
This updates the rust-version file to fcbe791.
Pull recent changes from https://github.com/rust-lang/rust via Josh. Upstream ref: rust-lang/rust@fcbe791 Filtered ref: rust-lang/stdarch@4742894 Upstream diff: rust-lang/rust@8e15021...fcbe791 This merge was created using https://github.com/rust-lang/josh-sync.
Rustc pull update
loongarch: Use `intrinsics::simd` for vbs{l,r}l
the upper quadword is undefined
…-quad for sse4a functions compare only the lower quadword
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…uwer Rollup of 6 pull requests Successful merges: - #159517 (stdarch subtree update) - #159010 (Simplify the unwind crate) - #156650 (Stop using prefix_tys) - #159152 (triagebot: cc miri on any special-casing of miri in the standard library) - #159522 (Apply `#[diagnostic::opaque]` to macros expanding to built-in syntax) - #159528 (implement `const_binary_search`)
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Rollup merge of #159517 - folkertdev:stdarch-sync-2026-07-18, r=folkertdev stdarch subtree update Subtree update of `stdarch` to rust-lang/stdarch@50afa9f. Created using https://github.com/rust-lang/josh-sync. r? @ghost
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…uwer Rollup of 6 pull requests Successful merges: - rust-lang/rust#159517 (stdarch subtree update) - rust-lang/rust#159010 (Simplify the unwind crate) - rust-lang/rust#156650 (Stop using prefix_tys) - rust-lang/rust#159152 (triagebot: cc miri on any special-casing of miri in the standard library) - rust-lang/rust#159522 (Apply `#[diagnostic::opaque]` to macros expanding to built-in syntax) - rust-lang/rust#159528 (implement `const_binary_search`)
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Update to LLVM 23 Changes in this PR (apart from the LLVM update): * Updated cov-map tests due to minor ordering changes introduced in llvm/llvm-project@5931034. The affected tests are limited to LLVM >= 23 now. * Set `LLVM_VERSIONED_DYLIB_NAME_ON_DARWIN=OFF`, which restores the previous unversioned naming of the LLVM dylib on Darwin. I expect we'll want to change this for consistency with Linux, but given the amount of trouble Darwin dylibs have caused in the past, I'm not trying to do it in this PR. * Distribute the llvm-project/libc subproject, which is now a build dependency of LLVM. * Pull in f128 Windows ABI changes from #158778. These need to land in sync with the LLVM update (as ABI of libcalls is controlled by LLVM, not our ABI lowering). * Disable RISCV backend on dist-i686-mingw, because the build OOMs on a large generated file. This is a temporary measure until host tools are removed by rust-lang/compiler-team#1020. * The llvm-project fork includes a new downstream patch for mingw: rust-lang/llvm-project@b89cd8e It works around mingw having broken TLS prior to GCC 16. (We're currently on GCC 14.) Issues: * [x] llvm/llvm-project#209512 * [x] llvm/llvm-project#209714 * [x] llvm/llvm-project#209718 * [x] rust-lang/stdarch#2190 (synced in #159517) * [x] llvm/llvm-project#210025 * [x] #159391 * [x] EnzymeAD/Enzyme#2951 * [x] #159301 * [x] llvm/llvm-project#210300
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Update to LLVM 23 Changes in this PR (apart from the LLVM update): * Updated cov-map tests due to minor ordering changes introduced in llvm/llvm-project@5931034. The affected tests are limited to LLVM >= 23 now. * Set `LLVM_VERSIONED_DYLIB_NAME_ON_DARWIN=OFF`, which restores the previous unversioned naming of the LLVM dylib on Darwin. I expect we'll want to change this for consistency with Linux, but given the amount of trouble Darwin dylibs have caused in the past, I'm not trying to do it in this PR. * Distribute the llvm-project/libc subproject, which is now a build dependency of LLVM. * Pull in f128 Windows ABI changes from #158778. These need to land in sync with the LLVM update (as ABI of libcalls is controlled by LLVM, not our ABI lowering). * Disable RISCV backend on dist-i686-mingw, because the build OOMs on a large generated file. This is a temporary measure until host tools are removed by rust-lang/compiler-team#1020. * The llvm-project fork includes a new downstream patch for mingw: rust-lang/llvm-project@b89cd8e It works around mingw having broken TLS prior to GCC 16. (We're currently on GCC 14.) Issues: * [x] llvm/llvm-project#209512 * [x] llvm/llvm-project#209714 * [x] llvm/llvm-project#209718 * [x] rust-lang/stdarch#2190 (synced in #159517) * [x] llvm/llvm-project#210025 * [x] #159391 * [x] EnzymeAD/Enzyme#2951 * [x] #159301 * [x] llvm/llvm-project#210300
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Jul 25, 2026
Update to LLVM 23 Changes in this PR (apart from the LLVM update): * Updated cov-map tests due to minor ordering changes introduced in llvm/llvm-project@5931034. The affected tests are limited to LLVM >= 23 now. * Set `LLVM_VERSIONED_DYLIB_NAME_ON_DARWIN=OFF`, which restores the previous unversioned naming of the LLVM dylib on Darwin. I expect we'll want to change this for consistency with Linux, but given the amount of trouble Darwin dylibs have caused in the past, I'm not trying to do it in this PR. * Distribute the llvm-project/libc subproject, which is now a build dependency of LLVM. * Pull in f128 Windows ABI changes from #158778. These need to land in sync with the LLVM update (as ABI of libcalls is controlled by LLVM, not our ABI lowering). * Disable RISCV backend on dist-i686-mingw, because the build OOMs on a large generated file. This is a temporary measure until host tools are removed by rust-lang/compiler-team#1020. * The llvm-project fork includes a new downstream patch for mingw: rust-lang/llvm-project@b89cd8e It works around mingw having broken TLS prior to GCC 16. (We're currently on GCC 14.) Issues: * [x] llvm/llvm-project#209512 * [x] llvm/llvm-project#209714 * [x] llvm/llvm-project#209718 * [x] rust-lang/stdarch#2190 (synced in #159517) * [x] llvm/llvm-project#210025 * [x] #159391 * [x] EnzymeAD/Enzyme#2951 * [x] #159301 * [x] llvm/llvm-project#210300
rust-bors Bot
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Jul 25, 2026
Update to LLVM 23 Changes in this PR (apart from the LLVM update): * Updated cov-map tests due to minor ordering changes introduced in llvm/llvm-project@5931034. The affected tests are limited to LLVM >= 23 now. * Set `LLVM_VERSIONED_DYLIB_NAME_ON_DARWIN=OFF`, which restores the previous unversioned naming of the LLVM dylib on Darwin. I expect we'll want to change this for consistency with Linux, but given the amount of trouble Darwin dylibs have caused in the past, I'm not trying to do it in this PR. * Distribute the llvm-project/libc subproject, which is now a build dependency of LLVM. * Pull in f128 Windows ABI changes from #158778. These need to land in sync with the LLVM update (as ABI of libcalls is controlled by LLVM, not our ABI lowering). * Disable RISCV backend on dist-i686-mingw, because the build OOMs on a large generated file. This is a temporary measure until host tools are removed by rust-lang/compiler-team#1020. * The llvm-project fork includes a new downstream patch for mingw: rust-lang/llvm-project@b89cd8e It works around mingw having broken TLS prior to GCC 16. (We're currently on GCC 14.) Issues: * [x] llvm/llvm-project#209512 * [x] llvm/llvm-project#209714 * [x] llvm/llvm-project#209718 * [x] rust-lang/stdarch#2190 (synced in #159517) * [x] llvm/llvm-project#210025 * [x] #159391 * [x] EnzymeAD/Enzyme#2951 * [x] #159301 * [x] llvm/llvm-project#210300
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Subtree update of
stdarchto rust-lang/stdarch@50afa9f.Created using https://github.com/rust-lang/josh-sync.
r? @ghost