1 files changed, 21 insertions, 0 deletions

diff --git a/tests/codegen/issues/issue-27130.rs b/tests/codegen/issues/issue-27130.rs
new file mode 100644
index 000000000..e5ee94e1f
--- /dev/null
+++ b/tests/codegen/issues/issue-27130.rs
@@ -0,0 +1,21 @@
+// compile-flags: -O
+
+#![crate_type = "lib"]
+
+// CHECK-LABEL: @trim_in_place
+#[no_mangle]
+pub fn trim_in_place(a: &mut &[u8]) {
+    while a.first() == Some(&42) {
+        // CHECK-NOT: slice_index_order_fail
+        *a = &a[1..];
+    }
+}
+
+// CHECK-LABEL: @trim_in_place2
+#[no_mangle]
+pub fn trim_in_place2(a: &mut &[u8]) {
+    while let Some(&42) = a.first() {
+        // CHECK-NOT: slice_index_order_fail
+        *a = &a[2..];
+    }
+}