Shader Recompiler: Auto stub special registers and dump pipelines on exception.

src/shader_recompiler/frontend/maxwell/translate/impl/move_special_register.cpp

@@ -161,7 +161,8 @@ enum class SpecialRegister : u64 {
         LOG_WARNING(Shader, "(STUBBED) SR_AFFINITY");
         return ir.Imm32(0); // This is the default value hardware returns.
     default:
-        throw NotImplementedException("S2R special register {}", special_register);
+        LOG_CRITICAL(Shader, "(STUBBED) Special register {}", special_register);
+        return ir.Imm32(0); // This is the default value hardware returns.
     }
 }
 } // Anonymous namespace

src/video_core/renderer_vulkan/vk_pipeline_cache.cpp

@@ -664,6 +664,19 @@ std::unique_ptr<GraphicsPipeline> PipelineCache::CreateGraphicsPipeline(
         std::move(modules), infos);
 
 } catch (const Shader::Exception& exception) {
+    auto hash = key.Hash();
+    size_t env_index{0};
+    for (size_t index = 0; index < Maxwell::MaxShaderProgram; ++index) {
+        if (key.unique_hashes[index] == 0) {
+            continue;
+        }
+        Shader::Environment& env{*envs[env_index]};
+        ++env_index;
+
+        const u32 cfg_offset{static_cast<u32>(env.StartAddress() + sizeof(Shader::ProgramHeader))};
+        Shader::Maxwell::Flow::CFG cfg(env, pools.flow_block, cfg_offset, index == 0);
+        env.Dump(hash, key.unique_hashes[index]);
+    }
     LOG_ERROR(Render_Vulkan, "{}", exception.what());
     return nullptr;
 }