1 files changed, 35 insertions, 0 deletions
diff --git a/tests/codegen/array-codegen.rs b/tests/codegen/array-codegen.rs
new file mode 100644
index 000000000..98488eb92
--- /dev/null
+++ b/tests/codegen/array-codegen.rs
@@ -0,0 +1,35 @@
+// compile-flags: -O -C no-prepopulate-passes
+// min-llvm-version: 15.0 (for opaque pointers)
+
+#![crate_type = "lib"]
+
+// CHECK-LABEL: @array_load
+#[no_mangle]
+pub fn array_load(a: &[u8; 4]) -> [u8; 4] {
+    // CHECK: %0 = alloca [4 x i8], align 1
+    // CHECK: %[[TEMP1:.+]] = load <4 x i8>, ptr %a, align 1
+    // CHECK: store <4 x i8> %[[TEMP1]], ptr %0, align 1
+    // CHECK: %[[TEMP2:.+]] = load i32, ptr %0, align 1
+    // CHECK: ret i32 %[[TEMP2]]
+    *a
+}
+
+// CHECK-LABEL: @array_store
+#[no_mangle]
+pub fn array_store(a: [u8; 4], p: &mut [u8; 4]) {
+    // CHECK: %a = alloca [4 x i8]
+    // CHECK: %[[TEMP:.+]] = load <4 x i8>, ptr %a, align 1
+    // CHECK-NEXT: store <4 x i8> %[[TEMP]], ptr %p, align 1
+    *p = a;
+}
+
+// CHECK-LABEL: @array_copy
+#[no_mangle]
+pub fn array_copy(a: &[u8; 4], p: &mut [u8; 4]) {
+    // CHECK: %[[LOCAL:.+]] = alloca [4 x i8], align 1
+    // CHECK: %[[TEMP1:.+]] = load <4 x i8>, ptr %a, align 1
+    // CHECK: store <4 x i8> %[[TEMP1]], ptr %[[LOCAL]], align 1
+    // CHECK: %[[TEMP2:.+]] = load <4 x i8>, ptr %[[LOCAL]], align 1
+    // CHECK: store <4 x i8> %[[TEMP2]], ptr %p, align 1
+    *p = *a;
+}