File: slice-iter-fold.rs

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rustc 1.88.0%2Bdfsg1-1
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//@ compile-flags: -Copt-level=3
#![crate_type = "lib"]

// CHECK-LABEL: @slice_fold_to_last
#[no_mangle]
pub fn slice_fold_to_last(slice: &[i32]) -> Option<&i32> {
    // CHECK-NOT: loop
    // CHECK-NOT: br
    // CHECK-NOT: call
    // CHECK: ret
    slice.iter().fold(None, |_, i| Some(i))
}