1 files changed, 17 insertions, 0 deletions
diff --git a/tests/codegen/issues/issue-109328-split_first.rs b/tests/codegen/issues/issue-109328-split_first.rs
new file mode 100644
index 00000000000..a43e653e1a2
--- /dev/null
+++ b/tests/codegen/issues/issue-109328-split_first.rs
@@ -0,0 +1,17 @@
+//@ compile-flags: -O
+//@ min-llvm-version: 17
+
+#![crate_type = "lib"]
+
+#[no_mangle]
+// CHECK-LABEL: @foo
+// CHECK: getelementptr inbounds
+// CHECK-NEXT: load i64
+// CHECK-NEXT: icmp eq i64
+// CHECK-NEXT: br i1
+#[no_mangle]
+pub fn foo(input: &mut &[u64]) -> Option<u64> {
+    let (first, rest) = input.split_first()?;
+    *input = rest;
+    Some(*first)
+}