1 files changed, 17 insertions, 4 deletions
diff --git a/src/tools/clippy/tests/ui/swap.fixed b/src/tools/clippy/tests/ui/swap.fixed
index fa89706a8..9703674d1 100644
--- a/src/tools/clippy/tests/ui/swap.fixed
+++ b/src/tools/clippy/tests/ui/swap.fixed
@@ -1,4 +1,5 @@
 // run-rustfix
+// aux-build: macro_rules.rs
 
 #![warn(clippy::all)]
 #![allow(
@@ -8,7 +9,8 @@
     redundant_semicolons,
     dead_code,
     unused_assignments,
-    unused_variables
+    unused_variables,
+    clippy::let_and_return
 )]
 
 struct Foo(u32);
@@ -65,19 +67,19 @@ fn xor_swap_locals() {
     // This is an xor-based swap of local variables.
     let mut a = 0;
     let mut b = 1;
-    std::mem::swap(&mut a, &mut b)
+    std::mem::swap(&mut a, &mut b);
 }
 
 fn xor_field_swap() {
     // This is an xor-based swap of fields in a struct.
     let mut bar = Bar { a: 0, b: 1 };
-    std::mem::swap(&mut bar.a, &mut bar.b)
+    std::mem::swap(&mut bar.a, &mut bar.b);
 }
 
 fn xor_slice_swap() {
     // This is an xor-based swap of a slice
     let foo = &mut [1, 2];
-    foo.swap(0, 1)
+    foo.swap(0, 1);
 }
 
 fn xor_no_swap() {
@@ -186,3 +188,14 @@ const fn issue_9864(mut u: u32) -> u32 {
     v = temp;
     u + v
 }
+
+#[macro_use]
+extern crate macro_rules;
+
+const fn issue_10421(x: u32) -> u32 {
+    issue_10421!();
+    let a = x;
+    let a = a;
+    let a = a;
+    a
+}