3 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/macros/auxiliary/foreign-crate-macro-pat.rs b/src/test/ui/macros/auxiliary/foreign-crate-macro-pat.rs
new file mode 100644
index 00000000000..26d4c96d524
--- /dev/null
+++ b/src/test/ui/macros/auxiliary/foreign-crate-macro-pat.rs
@@ -0,0 +1,11 @@
+// edition:2018
+
+#[macro_export]
+macro_rules! custom_matches {
+    ($expression:expr, $( $pattern:pat )|+ $( if $guard: expr )? $(,)?) => {
+        match $expression {
+            $( $pattern )|+ $( if $guard )? => true,
+            _ => false
+        }
+    }
+}
diff --git a/src/test/ui/macros/cross-crate-pat-span.rs b/src/test/ui/macros/cross-crate-pat-span.rs
new file mode 100644
index 00000000000..ed67142ce3d
--- /dev/null
+++ b/src/test/ui/macros/cross-crate-pat-span.rs
@@ -0,0 +1,12 @@
+// edition:2021
+// check-pass
+// aux-build: foreign-crate-macro-pat.rs
+//
+// Tests that the edition of the foreign crate is used
+// when determining the behavior of the `:pat` matcher.
+
+extern crate foreign_crate_macro_pat;
+
+fn main() {
+    let _b = foreign_crate_macro_pat::custom_matches!(b'3', b'0' ..= b'9');
+}
diff --git a/src/test/ui/macros/issue-84429-matches-edition.rs b/src/test/ui/macros/issue-84429-matches-edition.rs
new file mode 100644
index 00000000000..53f134c265f
--- /dev/null
+++ b/src/test/ui/macros/issue-84429-matches-edition.rs
@@ -0,0 +1,9 @@
+// edition:2021
+// check-pass
+//
+// Regression test for issue #84429
+// Tests that we can properly invoke `matches!` from a 2021-edition crate.
+
+fn main() {
+    let _b = matches!(b'3', b'0' ..= b'9');
+}