From 1c2acda0dad86577f6462805866686fa1cc0c260 Mon Sep 17 00:00:00 2001
From: Giovanni Mascellani <gmascellani@codeweavers.com>
Date: Wed, 1 Oct 2025 21:42:31 +0200
Subject: [PATCH] tests/hlsl: Add a test for SV_GroupIndex.

---
 tests/hlsl/compute.shader_test | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tests/hlsl/compute.shader_test b/tests/hlsl/compute.shader_test
index aa3a69ab6..c6fbc586e 100644
--- a/tests/hlsl/compute.shader_test
+++ b/tests/hlsl/compute.shader_test
@@ -44,3 +44,19 @@ dispatch 13 13 1
 probe uav 0 (0, 0) u32(0, 0, 0, 1)
 probe uav 0 (14, 38) u32(14, 38, 0, 1)
 probe uav 0 (49, 49) u32(49, 49, 0, 1)
+
+[compute shader]
+RWTexture2D<uint4> u;
+
+    [numthreads(4, 4, 1)]
+void main(uint3 thread_id : SV_DispatchThreadId, uint group_index : SV_GroupIndex)
+{
+    if (thread_id.x < 50 && thread_id.y < 50)
+        u[thread_id.xy] = uint4(group_index, 0, 0, 1);
+}
+
+[test]
+todo(glsl | msl) dispatch 13 13 1
+probe uav 0 (0, 0) u32(0, 0, 0, 1)
+probe uav 0 (14, 38) u32(10, 0, 0, 1)
+probe uav 0 (49, 49) u32(5, 0, 0, 1)