[*] change all std::unordered_map and std::unordered_set into ankerl::unordered_dense::map/set variants (#3442)

mainly doing this to reduce memory footprint; we all know how nice ankerl::unordered_dense is

in theory 4x faster - in practice these maps arent that "hot" anyways so not likely to have much perf gained

i just want to reduce mem fragmentation to ease my porting process, plus it helps other platforms as well (ahem weak Mediatek devices) :)

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Co-authored-by: Caio Oliveira <caiooliveirafarias0@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3442
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

src/yuzu/compatibility_list.h

@@ -1,16 +1,19 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
 #include <string>
-#include <unordered_map>
+#include <ankerl/unordered_dense.h>
 
 #include <QString>
 
 #include "common/common_types.h"
 
-using CompatibilityList = std::unordered_map<std::string, std::pair<QString, QString>>;
+using CompatibilityList = ankerl::unordered_dense::map<std::string, std::pair<QString, QString>>;
 
 CompatibilityList::const_iterator FindMatchingCompatibilityEntry(
     const CompatibilityList& compatibility_list, u64 program_id);

src/yuzu/configuration/input_profiles.h

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
@@ -7,7 +7,7 @@
 #pragma once
 
 #include <string>
-#include <unordered_map>
+#include <ankerl/unordered_dense.h>
 
 #include "qt_common/config/qt_config.h"
 
@@ -35,5 +35,5 @@ public:
 private:
     bool ProfileExistsInMap(const std::string& profile_name) const;
 
-    std::unordered_map<std::string, std::unique_ptr<QtConfig>> map_profiles;
+    ankerl::unordered_dense::map<std::string, std::unique_ptr<QtConfig>> map_profiles;
 };

src/yuzu/loading_screen.cpp

@@ -1,7 +1,10 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <unordered_map>
+#include <ankerl/unordered_dense.h>
 #include <QBuffer>
 #include <QByteArray>
 #include <QGraphicsOpacityEffect>

src/yuzu/loading_screen.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -77,8 +80,8 @@ private:
     std::unique_ptr<QPropertyAnimation> fadeout_animation;
 
     // Definitions for the differences in text and styling for each stage
-    std::unordered_map<VideoCore::LoadCallbackStage, const char*> progressbar_style;
-    std::unordered_map<VideoCore::LoadCallbackStage, QString> stage_translations;
+    ankerl::unordered_dense::map<VideoCore::LoadCallbackStage, const char*> progressbar_style;
+    ankerl::unordered_dense::map<VideoCore::LoadCallbackStage, QString> stage_translations;
 
     // newly generated shaders are added to the end of the file, so when loading and compiling
     // shaders, it will start quickly but end slow if new shaders were added since previous launch.

src/yuzu/multiplayer/chat_room.h

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 // SPDX-FileCopyrightText: Copyright 2017 Citra Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
@@ -6,8 +6,7 @@
 #pragma once
 
 #include <memory>
-#include <unordered_map>
-#include <unordered_set>
+#include <ankerl/unordered_dense.h>
 #include <QDialog>
 #include <QSortFilterProxyModel>
 #include <QStandardItemModel>
@@ -66,8 +65,8 @@ private:
     bool has_mod_perms = false;
     QStandardItemModel* player_list;
     std::unique_ptr<Ui::ChatRoom> ui;
-    std::unordered_set<std::string> block_list;
-    std::unordered_map<std::string, QPixmap> icon_cache;
+    ankerl::unordered_dense::set<std::string> block_list;
+    ankerl::unordered_dense::map<std::string, QPixmap> icon_cache;
 };
 
 Q_DECLARE_METATYPE(Network::ChatEntry);