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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
commit | 64d98f8ee037282c35007b64c2649055c56af1db (patch) | |
tree | 5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/mir-opt/lower_array_len_e2e.rs | |
parent | Adding debian version 1.67.1+dfsg1-1. (diff) | |
download | rustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/mir-opt/lower_array_len_e2e.rs')
-rw-r--r-- | tests/mir-opt/lower_array_len_e2e.rs | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/tests/mir-opt/lower_array_len_e2e.rs b/tests/mir-opt/lower_array_len_e2e.rs new file mode 100644 index 000000000..d8e4e521e --- /dev/null +++ b/tests/mir-opt/lower_array_len_e2e.rs @@ -0,0 +1,39 @@ +// compile-flags: -Z mir-opt-level=4 -Zunsound-mir-opts + +// 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]); +} |