Add regression test for #99647

Signed-off-by: Yuki Okushi <jtitor@2k36.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-99647.rs b/src/test/ui/const-generics/generic_const_exprs/issue-99647.rs
new file mode 100644
index 00000000000..f797beda8e6
--- /dev/null
+++ b/src/test/ui/const-generics/generic_const_exprs/issue-99647.rs
@@ -0,0 +1,15 @@
+// edition:2018
+// run-pass
+
+#![allow(incomplete_features)]
+#![feature(generic_const_exprs)]
+
+#[allow(unused)]
+async fn foo<'a>() {
+    let _data = &mut [0u8; { 1 + 4 }];
+    bar().await
+}
+
+async fn bar() {}
+
+fn main() {}