Add test for Ord impl for Option::NonZero

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/codegen/option-niche-eq.rs b/tests/codegen/option-niche-eq.rs
index 9c5ed9ce57a..2be9e2bc489 100644
--- a/tests/codegen/option-niche-eq.rs
+++ b/tests/codegen/option-niche-eq.rs
@@ -24,6 +24,18 @@ pub fn non_zero_signed_eq(l: Option<NonZero<i64>>, r: Option<NonZero<i64>>) -> b
     l == r
 }
 
+// Test for #49892
+// This currently relies on a manual implementation of `PartialOrd`/`Ord` for `Option`
+// Once LLVM is better able to optimize this pattern, we can return to using a derive.
+// CHECK-LABEL: @non_zero_ord
+#[no_mangle]
+pub fn non_zero_ord(a: Option<NonZero<u32>>, b: Option<NonZero<u32>>) -> bool {
+    // CHECK: start:
+    // CHECK-NEXT: icmp ult i32
+    // CHECK-NEXT: ret i1
+    a < b
+}
+
 // CHECK-LABEL: @non_null_eq
 #[no_mangle]
 pub fn non_null_eq(l: Option<NonNull<u8>>, r: Option<NonNull<u8>>) -> bool {