diff --git a/src/test/ui/consts/const-eval/issue-100878.rs b/src/test/ui/consts/const-eval/issue-100878.rs
new file mode 100644
index 0000000000000..353ce5050359c
--- /dev/null
+++ b/src/test/ui/consts/const-eval/issue-100878.rs
@@ -0,0 +1,8 @@
+// This checks that the const-eval ICE in issue #100878 does not recur.
+//
+// build-pass
+pub fn bitshift_data(data: [u8; 1]) -> u8 {
+    data[0] << 8
+}
+
+fn main() {}