From 14feaf4ba8108251fcea9d4d311451a313299b65 Mon Sep 17 00:00:00 2001
From: TellowKrinkle <tellowkrinkle@gmail.com>
Date: Sun, 29 Sep 2024 23:58:23 -0500
Subject: [PATCH] VideoBackends:Metal: Use ios_use_simdgroup_functions with
 SPIRV-Cross

It defaults to trying to emulate simdgroup functions on iOS
---
 Source/Core/VideoBackends/Metal/MTLUtil.mm | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Source/Core/VideoBackends/Metal/MTLUtil.mm b/Source/Core/VideoBackends/Metal/MTLUtil.mm
index b9a195b555..4785084e62 100644
--- a/Source/Core/VideoBackends/Metal/MTLUtil.mm
+++ b/Source/Core/VideoBackends/Metal/MTLUtil.mm
@@ -559,6 +559,9 @@ std::optional<std::string> Metal::Util::TranslateShaderToMSL(ShaderStage stage,
   options.platform = spirv_cross::CompilerMSL::Options::macOS;
 #elif TARGET_OS_IOS
   options.platform = spirv_cross::CompilerMSL::Options::iOS;
+  // Otherwise SPIRV-Cross will try to compile subgroup ops to quad ops instead
+  // (And crash because there's no quad_min or quad_max)
+  options.ios_use_simdgroup_functions = Metal::g_features.subgroup_ops;
 #else
   #error What platform is this?
 #endif