From 039a3bafecb42b51c2cc5f1bc1e0b0109873b729 Mon Sep 17 00:00:00 2001
From: Scott McMurray <scottmcm@users.noreply.github.com>
Date: Sun, 30 May 2021 21:27:29 -0700
Subject: [PATCH] Add another codegen test, array_eq_zero

Showing that this avoids an alloca and private constant.
---
 src/test/codegen/array-equality.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/test/codegen/array-equality.rs b/src/test/codegen/array-equality.rs
index 6a9fb5c8f86..aa56e32e26c 100644
--- a/src/test/codegen/array-equality.rs
+++ b/src/test/codegen/array-equality.rs
@@ -34,3 +34,12 @@ pub fn array_eq_long(a: &[u16; 1234], b: &[u16; 1234]) -> bool {
     // CHECK-NEXT: ret i1 %[[EQ]]
     a == b
 }
+
+// CHECK-LABEL: @array_eq_zero(i128 %0)
+#[no_mangle]
+pub fn array_eq_zero(x: [u16; 8]) -> bool {
+    // CHECK-NEXT: start:
+    // CHECK-NEXT: %[[EQ:.+]] = icmp eq i128 %0, 0
+    // CHECK-NEXT: ret i1 %[[EQ]]
+    x == [0; 8]
+}