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| author | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-05 09:13:28 +0100 |
|---|---|---|
| committer | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-11 09:32:08 +0000 |
| commit | cf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch) | |
| tree | 40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/mir-opt/lower_array_len.rs | |
| parent | ca855e6e42787ecd062d81d53336fe6788ef51a9 (diff) | |
| download | rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip | |
Move /src/test to /tests
Diffstat (limited to 'tests/mir-opt/lower_array_len.rs')
| -rw-r--r-- | tests/mir-opt/lower_array_len.rs | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/tests/mir-opt/lower_array_len.rs b/tests/mir-opt/lower_array_len.rs new file mode 100644 index 00000000000..ea0224b21d7 --- /dev/null +++ b/tests/mir-opt/lower_array_len.rs @@ -0,0 +1,40 @@ +// unit-test: NormalizeArrayLen +// compile-flags: -Zmir-enable-passes=+LowerSliceLenCalls + +// EMIT_MIR lower_array_len.array_bound.NormalizeArrayLen.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 +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 +pub fn array_len<const N: usize>(arr: &[u8; N]) -> usize { + arr.len() +} + +// EMIT_MIR lower_array_len.array_len_by_value.NormalizeArrayLen.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]); +} |
