rust/tests/codegen/lib-optimizations/iter-sum.rs
Nicholas Nethercote 72800d3b89 Run rustfmt on tests/codegen/.
Except for `simd-intrinsic/`, which has a lot of files containing
multiple types like `u8x64` which really are better when hand-formatted.

There is a surprising amount of two-space indenting in this directory.

Non-trivial changes:
- `rustfmt::skip` needed in `debug-column.rs` to preserve meaning of the
  test.
- `rustfmt::skip` used in a few places where hand-formatting read more
  nicely: `enum/enum-match.rs`
- Line number adjustments needed for the expected output of
  `debug-column.rs` and `coroutine-debug.rs`.
2024-05-31 15:56:43 +10:00

14 lines
398 B
Rust

//@ compile-flags: -O
//@ only-x86_64 (vectorization varies between architectures)
#![crate_type = "lib"]
// Ensure that slice + take + sum gets vectorized.
// Currently this relies on the slice::Iter::try_fold implementation
// CHECK-LABEL: @slice_take_sum
#[no_mangle]
pub fn slice_take_sum(s: &[u64], l: usize) -> u64 {
// CHECK: vector.body:
// CHECK: ret
s.iter().take(l).sum()
}