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Run CI after LLVM upgrade #1897

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943ebe0
Dummy change
nikic Aug 7, 2025
37ecc87
Try directly using intrinsics
nikic Aug 14, 2025
99f91be
Disable fail-fast
nikic Aug 14, 2025
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1 change: 1 addition & 0 deletions .github/workflows/main.yml
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Expand Up @@ -40,6 +40,7 @@ jobs:
name: Test
runs-on: ${{ matrix.target.os }}
strategy:
fail-fast: false
matrix:
profile:
- dev
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1 change: 1 addition & 0 deletions README.md
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Expand Up @@ -14,3 +14,4 @@ The `std::simd` component now lives in the
This repository is linked to `rust-lang/rust` as a [josh](https://josh-project.github.io/josh/intro.html) subtree. You can use the [rustc-josh-sync](https://github.com/rust-lang/josh-sync) tool to perform synchronization.

You can find a guide on how to perform the synchronization [here](https://rustc-dev-guide.rust-lang.org/external-repos.html#synchronizing-a-josh-subtree).

13 changes: 10 additions & 3 deletions crates/core_arch/src/s390x/vector.rs
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Expand Up @@ -114,6 +114,9 @@ unsafe extern "unadjusted" {
#[link_name = "llvm.s390.vsumqf"] fn vsumqf(a: vector_unsigned_int, b: vector_unsigned_int) -> u128;
#[link_name = "llvm.s390.vsumqg"] fn vsumqg(a: vector_unsigned_long_long, b: vector_unsigned_long_long) -> u128;

#[link_name = "llvm.s390.vaccq"] fn vaccq(a: u128, b: u128) -> u128;
#[link_name = "llvm.s390.vacccq"] fn vacccq(a: u128, b: u128, c: u128) -> u128;

#[link_name = "llvm.s390.vscbiq"] fn vscbiq(a: u128, b: u128) -> u128;
#[link_name = "llvm.s390.vsbiq"] fn vsbiq(a: u128, b: u128, c: u128) -> u128;
#[link_name = "llvm.s390.vsbcbiq"] fn vsbcbiq(a: u128, b: u128, c: u128) -> u128;
Expand Down Expand Up @@ -4694,7 +4697,9 @@ pub unsafe fn vec_addc_u128(
) -> vector_unsigned_char {
let a: u128 = transmute(a);
let b: u128 = transmute(b);
transmute(a.overflowing_add(b).1 as u128)
// FIXME(llvm) https://github.com/llvm/llvm-project/pull/153557
// transmute(a.overflowing_add(b).1 as u128)
transmute(vaccq(a, b))
}

/// Vector Add With Carry unsigned 128-bits
Expand Down Expand Up @@ -4729,8 +4734,10 @@ pub unsafe fn vec_addec_u128(
let a: u128 = transmute(a);
let b: u128 = transmute(b);
let c: u128 = transmute(c);
let (_d, carry) = a.carrying_add(b, c & 1 != 0);
transmute(carry as u128)
// FIXME(llvm) https://github.com/llvm/llvm-project/pull/153557
// let (_d, carry) = a.carrying_add(b, c & 1 != 0);
// transmute(carry as u128)
transmute(vacccq(a, b, c))
}

/// Vector Subtract with Carryout
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