1 files changed, 18 insertions, 0 deletions

diff --git a/tests/codegen-llvm/issues/issue-113757-bounds-check-after-cmp-max.rs b/tests/codegen-llvm/issues/issue-113757-bounds-check-after-cmp-max.rs
new file mode 100644
index 00000000000..d495adf9980
--- /dev/null
+++ b/tests/codegen-llvm/issues/issue-113757-bounds-check-after-cmp-max.rs
@@ -0,0 +1,18 @@
+// in Rust 1.73, -O and opt-level=3 optimizes differently
+//@ compile-flags: -C opt-level=3
+#![crate_type = "lib"]
+
+use std::cmp::max;
+
+// CHECK-LABEL: @foo
+// CHECK-NOT: slice_start_index_len_fail
+// CHECK-NOT: unreachable
+#[no_mangle]
+pub fn foo(v: &mut Vec<u8>, size: usize) -> Option<&mut [u8]> {
+    if v.len() > max(1, size) {
+        let start = v.len() - size;
+        Some(&mut v[start..])
+    } else {
+        None
+    }
+}