1 files changed, 6 insertions, 0 deletions
diff --git a/compiler/rustc_mir_transform/src/coverage/test_macros/src/lib.rs b/compiler/rustc_mir_transform/src/coverage/test_macros/src/lib.rs
new file mode 100644
index 000000000..3d6095d27
--- /dev/null
+++ b/compiler/rustc_mir_transform/src/coverage/test_macros/src/lib.rs
@@ -0,0 +1,6 @@
+use proc_macro::TokenStream;
+
+#[proc_macro]
+pub fn let_bcb(item: TokenStream) -> TokenStream {
+    format!("let bcb{} = graph::BasicCoverageBlock::from_usize({});", item, item).parse().unwrap()
+}