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// compile-flags: -Z mir-opt-level=4
// EMIT_MIR lower_array_len.array_bound.NormalizeArrayLen.diff
// EMIT_MIR lower_array_len.array_bound.SimplifyLocals.diff
// EMIT_MIR lower_array_len.array_bound.InstCombine.diff
pub fn array_bound<const N: usize>(index: usize, slice: &[u8; N]) -> u8 {
if index < slice.len() {
slice[index]
} else {
42
}
}
// EMIT_MIR lower_array_len.array_bound_mut.NormalizeArrayLen.diff
// EMIT_MIR lower_array_len.array_bound_mut.SimplifyLocals.diff
// EMIT_MIR lower_array_len.array_bound_mut.InstCombine.diff
pub fn array_bound_mut<const N: usize>(index: usize, slice: &mut [u8; N]) -> u8 {
if index < slice.len() {
slice[index]
} else {
slice[0] = 42;
42
}
}
// EMIT_MIR lower_array_len.array_len.NormalizeArrayLen.diff
// EMIT_MIR lower_array_len.array_len.SimplifyLocals.diff
// EMIT_MIR lower_array_len.array_len.InstCombine.diff
pub fn array_len<const N: usize>(arr: &[u8; N]) -> usize {
arr.len()
}
// EMIT_MIR lower_array_len.array_len_by_value.NormalizeArrayLen.diff
// EMIT_MIR lower_array_len.array_len_by_value.SimplifyLocals.diff
// EMIT_MIR lower_array_len.array_len_by_value.InstCombine.diff
pub fn array_len_by_value<const N: usize>(arr: [u8; N]) -> usize {
arr.len()
}
fn main() {
let _ = array_bound(3, &[0, 1, 2, 3]);
let mut tmp = [0, 1, 2, 3, 4];
let _ = array_bound_mut(3, &mut [0, 1, 2, 3]);
let _ = array_len(&[0]);
let _ = array_len_by_value([0, 2]);
}
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