add guards per subgroups support and remove forced turnip enabled on GS

src/shader_recompiler/ir_opt/compaction_fallback_pass.cpp

@@ -36,15 +36,14 @@ void RewriteAtomic(IR::Block& block, IR::Inst& inst) {
 
     const IR::U32 amount{inst.Arg(2)};
     const IR::U32 primitive_id{ir.GetAttributeU32(IR::Attribute::PrimitiveId)};
-    const IR::U32 new_index{ir.IMul(primitive_id, amount)};
-    const IR::U32 new_atomic_value{ir.IAdd(new_index, amount)};
+    const IR::U1 reserves_slot{ir.INotEqual(amount, ir.Imm32(0u))};
+    const IR::U32 slot_end{ir.IAdd(primitive_id, ir.Imm32(1u))};
+    const IR::U32 high_water{IR::U32{ir.Select(reserves_slot, slot_end, ir.Imm32(0u))}};
 
-    const IR::Value umax_result{&*block.PrependNewInst(
-        insert_point, IR::Opcode::StorageAtomicUMax32,
-        {inst.Arg(0), inst.Arg(1), new_atomic_value})};
-    static_cast<void>(umax_result);
+    block.PrependNewInst(insert_point, IR::Opcode::StorageAtomicUMax32,
+                         {inst.Arg(0), inst.Arg(1), high_water});
 
-    inst.ReplaceUsesWith(new_index);
+    inst.ReplaceUsesWith(primitive_id);
 }
 
 } // Anonymous namespace
@@ -58,6 +57,9 @@ void CompactionFallbackPass(IR::Program& program, const HostTranslateInfo& host_
             if (inst.GetOpcode() != IR::Opcode::StorageAtomicIAdd32) {
                 continue;
             }
+            if (!inst.HasUses()) {
+                continue;
+            }
             if (!DependsOnSubgroupBallot(inst.Arg(2), 0)) {
                 continue;
             }

src/shader_recompiler/ir_opt/passes.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 

src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

@@ -360,19 +360,26 @@ PipelineCache::PipelineCache(Tegra::MaxwellDeviceMemoryManager& device_memory_,
     const VkDriverId driver_id{device.GetDriverID()};
     const VkShaderStageFlags subgroup_stages{device.GetSubgroupSupportedStages()};
     const auto subgroup_stage_bit{[subgroup_stages](VkShaderStageFlags flag, Shader::Stage stage) {
-        return (subgroup_stages & flag) != 0 ? (1u << static_cast<u32>(stage)) : 0u;
+        if ((subgroup_stages & flag) == 0) {
+            return 0u;
+        }
+        return 1u << static_cast<u32>(stage);
     }};
-    const u32 supported_subgroup_stages{
+    u32 supported_subgroup_stages{
         subgroup_stage_bit(VK_SHADER_STAGE_VERTEX_BIT, Shader::Stage::VertexA) |
         subgroup_stage_bit(VK_SHADER_STAGE_VERTEX_BIT, Shader::Stage::VertexB) |
         subgroup_stage_bit(VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT,
                            Shader::Stage::TessellationControl) |
         subgroup_stage_bit(VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT,
                            Shader::Stage::TessellationEval) |
-        subgroup_stage_bit(driver_id == VK_DRIVER_ID_MESA_TURNIP ? 0 : VK_SHADER_STAGE_GEOMETRY_BIT,
-                           Shader::Stage::Geometry) |
+        subgroup_stage_bit(VK_SHADER_STAGE_GEOMETRY_BIT, Shader::Stage::Geometry) |
         subgroup_stage_bit(VK_SHADER_STAGE_FRAGMENT_BIT, Shader::Stage::Fragment) |
         subgroup_stage_bit(VK_SHADER_STAGE_COMPUTE_BIT, Shader::Stage::Compute)};
+    if (!device.AreSubgroupFeaturesSupported(VK_SUBGROUP_FEATURE_VOTE_BIT |
+                                             VK_SUBGROUP_FEATURE_BALLOT_BIT |
+                                             VK_SUBGROUP_FEATURE_SHUFFLE_BIT)) {
+        supported_subgroup_stages = 0u;
+    }
     profile = Shader::Profile{
         .supported_spirv = device.SupportedSpirvVersion(),
         .unified_descriptor_binding = true,

src/video_core/vulkan_common/vulkan_device.h

@@ -479,6 +479,11 @@ FN_MAX_LIMIT_LIST
         return properties.subgroup_properties.supportedStages;
     }
 
+    /// Returns true if every requested subgroup operation is supported by the device.
+    bool AreSubgroupFeaturesSupported(VkSubgroupFeatureFlags features) const {
+        return (properties.subgroup_properties.supportedOperations & features) == features;
+    }
+
     /// Returns the maximum number of push descriptors.
     u32 MaxPushDescriptors() const {
         return properties.push_descriptor.maxPushDescriptors;