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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /src/test/mir-opt/simplify_try_if_let.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/mir-opt/simplify_try_if_let.rs')
-rw-r--r-- | src/test/mir-opt/simplify_try_if_let.rs | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/src/test/mir-opt/simplify_try_if_let.rs b/src/test/mir-opt/simplify_try_if_let.rs deleted file mode 100644 index fba67de40..000000000 --- a/src/test/mir-opt/simplify_try_if_let.rs +++ /dev/null @@ -1,43 +0,0 @@ -// compile-flags: -Zmir-opt-level=1 -Zunsound-mir-opts -// ignore-test -// FIXME: the pass is unsound and causes ICEs in the MIR validator - -// EMIT_MIR simplify_try_if_let.{impl#0}-append.SimplifyArmIdentity.diff - -use std::ptr::NonNull; - -pub struct LinkedList { - head: Option<NonNull<Node>>, - tail: Option<NonNull<Node>>, -} - -pub struct Node { - next: Option<NonNull<Node>>, -} - -impl LinkedList { - pub fn new() -> Self { - Self { head: None, tail: None } - } - - pub fn append(&mut self, other: &mut Self) { - match self.tail { - None => {} - Some(mut tail) => { - // `as_mut` is okay here because we have exclusive access to the entirety - // of both lists. - if let Some(other_head) = other.head.take() { - unsafe { - tail.as_mut().next = Some(other_head); - } - } - } - } - } -} - -fn main() { - let mut one = LinkedList::new(); - let mut two = LinkedList::new(); - one.append(&mut two); -} |