1 files changed, 12 insertions, 0 deletions
diff --git a/tests/ui/consts/const-eval/match-test-ptr-null.rs b/tests/ui/consts/const-eval/match-test-ptr-null.rs
new file mode 100644
index 00000000000..4af97b54879
--- /dev/null
+++ b/tests/ui/consts/const-eval/match-test-ptr-null.rs
@@ -0,0 +1,12 @@
+fn main() {
+    // Make sure match uses the usual pointer comparison code path -- i.e., it should complain
+    // that pointer comparison is disallowed, not that parts of a pointer are accessed as raw
+    // bytes.
+    let _: [u8; 0] = [4; {
+        match &1 as *const i32 as usize {
+            //~^ ERROR pointers cannot be cast to integers during const eval
+            0 => 42,
+            n => n,
+        }
+    }];
+}