diff options
Diffstat (limited to '')
-rw-r--r-- | src/test/mir-opt/lower_array_len_e2e.rs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/test/mir-opt/lower_array_len_e2e.rs b/src/test/mir-opt/lower_array_len_e2e.rs new file mode 100644 index 000000000..49b35d509 --- /dev/null +++ b/src/test/mir-opt/lower_array_len_e2e.rs @@ -0,0 +1,39 @@ +// compile-flags: -Z mir-opt-level=4 + +// EMIT_MIR lower_array_len_e2e.array_bound.PreCodegen.after.mir +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_e2e.array_bound_mut.PreCodegen.after.mir +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_e2e.array_len.PreCodegen.after.mir +pub fn array_len<const N: usize>(arr: &[u8; N]) -> usize { + arr.len() +} + +// EMIT_MIR lower_array_len_e2e.array_len_by_value.PreCodegen.after.mir +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]); +} |