3 files changed, 38 insertions, 0 deletions
diff --git a/tests/ui/const_prop/issue-86351.rs b/tests/ui/const_prop/issue-86351.rs
new file mode 100644
index 000000000..b5f1e7f74
--- /dev/null
+++ b/tests/ui/const_prop/issue-86351.rs
@@ -0,0 +1,22 @@
+// compile-flags: --crate-type=lib -Zmir-opt-level=2
+// build-pass
+// ^-- Must be build-pass, because check-pass will not run const prop.
+
+pub trait TestTrait {
+    type MyType;
+    fn func() -> Option<Self>
+    where
+        Self: Sized;
+}
+
+impl<T> dyn TestTrait<MyType = T>
+where
+    Self: Sized,
+{
+    pub fn other_func() -> Option<Self> {
+        match Self::func() {
+            Some(me) => Some(me),
+            None => None,
+        }
+    }
+}
diff --git a/tests/ui/const_prop/unreachable-bounds.rs b/tests/ui/const_prop/unreachable-bounds.rs
new file mode 100644
index 000000000..8cf98e154
--- /dev/null
+++ b/tests/ui/const_prop/unreachable-bounds.rs
@@ -0,0 +1,6 @@
+// Use `build-pass` to ensure const-prop lint runs.
+// build-pass
+
+fn main() {
+    [()][if false { 1 } else { return }]
+}
diff --git a/tests/ui/const_prop/unreachable-overflow.rs b/tests/ui/const_prop/unreachable-overflow.rs
new file mode 100644
index 000000000..287513542
--- /dev/null
+++ b/tests/ui/const_prop/unreachable-overflow.rs
@@ -0,0 +1,10 @@
+// Use `build-pass` to ensure const-prop lint runs.
+// build-pass
+
+fn main() {
+    let x = 2u32;
+    let y = 3u32;
+    if y <= x {
+        dbg!(x - y);
+    }
+}