From bd0aae92dc76d9336cf09c097ac5a49fd619da44 Mon Sep 17 00:00:00 2001
From: Erik Desjardins <erikdesjardins@users.noreply.github.com>
Date: Sun, 11 Jun 2023 00:04:53 -0400
Subject: cg_llvm: use index-based loop in write_operand_repeatedly

This is easier for LLVM to analyze.
---
 tests/codegen/issues/issue-111603.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'tests/codegen')

diff --git a/tests/codegen/issues/issue-111603.rs b/tests/codegen/issues/issue-111603.rs
index 90b3c314d2f..06429ed3fa9 100644
--- a/tests/codegen/issues/issue-111603.rs
+++ b/tests/codegen/issues/issue-111603.rs
@@ -5,6 +5,18 @@
 
 use std::sync::Arc;
 
+// CHECK-LABEL: @new_from_array
+#[no_mangle]
+pub fn new_from_array(x: u64) -> Arc<[u64]> {
+    // Ensure that we only generate one alloca for the array.
+
+    // CHECK: alloca
+    // CHECK-SAME: [1000 x i64]
+    // CHECK-NOT: alloca
+    let array = [x; 1000];
+    Arc::new(array)
+}
+
 // CHECK-LABEL: @new_uninit
 #[no_mangle]
 pub fn new_uninit(x: u64) -> Arc<[u64; 1000]> {
-- 
cgit 1.4.1-3-g733a5