From 2af9015e04f2800cd92cdd9b4e0e5f2eb800290d Mon Sep 17 00:00:00 2001
From: Jake Turner <jake@evansturner.co.uk>
Date: Sun, 6 Apr 2025 12:24:02 +0100
Subject: [PATCH] Add VK_Workgroup_Zoo convergence test with dynamic for loop

A different number of iterations per thread
---
 util/test/demos/vk/vk_subgroup_zoo.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/util/test/demos/vk/vk_subgroup_zoo.cpp b/util/test/demos/vk/vk_subgroup_zoo.cpp
index bb32dffbd..c4c373766 100644
--- a/util/test/demos/vk/vk_subgroup_zoo.cpp
+++ b/util/test/demos/vk/vk_subgroup_zoo.cpp
@@ -258,6 +258,14 @@ void main()
     }
     data.x = subgroupAdd(id);
   }
+  else if(IsTest(8))
+  {
+     // Loops with different number of iterations per thread
+    for (uint i = 0; i < id; i++)
+    {
+      data.x += subgroupAdd(id);
+    }
+  }
   SetOuput(data);
 }