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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:50 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:50 +0000
commit2e00214b3efbdfeefaa0fe9e8b8fd519de7adc35 (patch)
treed325add32978dbdc1db975a438b3a77d571b1ab8 /tests/mir-opt/lower_array_len.rs
parentReleasing progress-linux version 1.68.2+dfsg1-1~progress7.99u1. (diff)
downloadrustc-2e00214b3efbdfeefaa0fe9e8b8fd519de7adc35.tar.xz
rustc-2e00214b3efbdfeefaa0fe9e8b8fd519de7adc35.zip
Merging upstream version 1.69.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/mir-opt/lower_array_len.rs')
-rw-r--r--tests/mir-opt/lower_array_len.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/tests/mir-opt/lower_array_len.rs b/tests/mir-opt/lower_array_len.rs
index ea0224b21..972d46cb8 100644
--- a/tests/mir-opt/lower_array_len.rs
+++ b/tests/mir-opt/lower_array_len.rs
@@ -31,10 +31,26 @@ pub fn array_len_by_value<const N: usize>(arr: [u8; N]) -> usize {
arr.len()
}
+// EMIT_MIR lower_array_len.array_len_reborrow.NormalizeArrayLen.diff
+pub fn array_len_reborrow<const N: usize>(mut arr: [u8; N]) -> usize {
+ let arr: &mut [_] = &mut arr;
+ let arr = &*arr;
+ arr.len()
+}
+
+// EMIT_MIR lower_array_len.array_len_raw.NormalizeArrayLen.diff
+pub fn array_len_raw<const N: usize>(arr: [u8; N]) -> usize {
+ let arr: &[_] = &arr;
+ let arr = std::ptr::addr_of!(*arr);
+ unsafe { &*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]);
+ let _ = array_len_reborrow([0, 2]);
+ let _ = array_len_raw([0, 2]);
}