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