From d5aa10d57247827fa5bf0aea01b6a0aa4c57a164 Mon Sep 17 00:00:00 2001
From: lizzie <lizzie@eden-emu.dev>
Date: Fri, 20 Feb 2026 16:38:17 +0100
Subject: [PATCH] [dynarmic] make Xbyak::CodeGen use Ankerl for backing
 unordered maps (#3438)

standard std::unordered_map and std::unordered_set sucks, hadn't found drop-in replacement for multimap, but this change should bring a nice perf boost for x86_64 :)

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

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3438
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: crueter <crueter@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>
---
 .../dynarmic/backend/x64/a32_emit_x64_memory.cpp   |  4 ++--
 .../dynarmic/backend/x64/a64_emit_x64_memory.cpp   |  4 ++--
 src/dynarmic/src/dynarmic/backend/x64/abi.cpp      |  4 ++--
 .../src/dynarmic/backend/x64/block_of_code.cpp     |  4 ++--
 .../src/dynarmic/backend/x64/block_of_code.h       |  6 ++----
 src/dynarmic/src/dynarmic/backend/x64/callback.h   |  4 ++--
 .../src/dynarmic/backend/x64/constant_pool.h       |  4 ++--
 src/dynarmic/src/dynarmic/backend/x64/emit_x64.h   |  3 +--
 .../backend/x64/emit_x64_floating_point.cpp        |  4 ++--
 .../src/dynarmic/backend/x64/emit_x64_memory.h     |  2 +-
 .../src/dynarmic/backend/x64/emit_x64_vector.cpp   |  2 +-
 .../backend/x64/emit_x64_vector_floating_point.cpp |  4 ++--
 src/dynarmic/src/dynarmic/backend/x64/hostloc.h    |  4 ++--
 src/dynarmic/src/dynarmic/backend/x64/oparg.h      |  4 ++--
 .../src/dynarmic/backend/x64/reg_alloc.cpp         |  4 ++--
 src/dynarmic/src/dynarmic/backend/x64/reg_alloc.h  |  4 ++--
 src/dynarmic/src/dynarmic/backend/x64/xbyak.h      | 14 ++++++++++++++
 src/dynarmic/src/dynarmic/common/spin_lock_x64.cpp |  4 ++--
 src/dynarmic/src/dynarmic/common/spin_lock_x64.h   |  4 ++--
 19 files changed, 47 insertions(+), 36 deletions(-)
 create mode 100644 src/dynarmic/src/dynarmic/backend/x64/xbyak.h

diff --git a/src/dynarmic/src/dynarmic/backend/x64/a32_emit_x64_memory.cpp b/src/dynarmic/src/dynarmic/backend/x64/a32_emit_x64_memory.cpp
index db7fef5334..a6b99b545f 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/a32_emit_x64_memory.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/a32_emit_x64_memory.cpp
@@ -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
 
 /* This file is part of the dynarmic project.
@@ -14,7 +14,7 @@
 #include <fmt/format.h>
 #include <fmt/ostream.h>
 #include <mcl/type_traits/integer_of_size.hpp>
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 #include "dynarmic/backend/x64/a32_emit_x64.h"
 #include "dynarmic/backend/x64/abi.h"
diff --git a/src/dynarmic/src/dynarmic/backend/x64/a64_emit_x64_memory.cpp b/src/dynarmic/src/dynarmic/backend/x64/a64_emit_x64_memory.cpp
index 8ae5b30172..6b3d4d86a5 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/a64_emit_x64_memory.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/a64_emit_x64_memory.cpp
@@ -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
 
 /* This file is part of the dynarmic project.
@@ -14,7 +14,7 @@
 #include <fmt/format.h>
 #include <fmt/ostream.h>
 #include <mcl/type_traits/integer_of_size.hpp>
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 #include "dynarmic/backend/x64/a64_emit_x64.h"
 #include "dynarmic/backend/x64/abi.h"
diff --git a/src/dynarmic/src/dynarmic/backend/x64/abi.cpp b/src/dynarmic/src/dynarmic/backend/x64/abi.cpp
index 299bf1d1d6..14f1b287ac 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/abi.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/abi.cpp
@@ -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
 
 /* This file is part of the dynarmic project.
@@ -11,7 +11,7 @@
 #include <algorithm>
 
 #include "dynarmic/common/common_types.h"
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 #include "dynarmic/backend/x64/block_of_code.h"
 
diff --git a/src/dynarmic/src/dynarmic/backend/x64/block_of_code.cpp b/src/dynarmic/src/dynarmic/backend/x64/block_of_code.cpp
index 3715dfa7ec..28c821ab59 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/block_of_code.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/block_of_code.cpp
@@ -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
 
 /* This file is part of the dynarmic project.
@@ -26,7 +26,7 @@
 
 #include "dynarmic/common/assert.h"
 #include <mcl/bit/bit_field.hpp>
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 #include "dynarmic/backend/x64/a32_jitstate.h"
 #include "dynarmic/backend/x64/abi.h"
diff --git a/src/dynarmic/src/dynarmic/backend/x64/block_of_code.h b/src/dynarmic/src/dynarmic/backend/x64/block_of_code.h
index 095e75336b..5ccab7a3ed 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/block_of_code.h
+++ b/src/dynarmic/src/dynarmic/backend/x64/block_of_code.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
 
 /* This file is part of the dynarmic project.
@@ -15,9 +15,7 @@
 
 #include <mcl/bit/bit_field.hpp>
 #include "dynarmic/common/common_types.h"
-#include <xbyak/xbyak.h>
-#include <xbyak/xbyak_util.h>
-
+#include "dynarmic/backend/x64/xbyak.h"
 #include "dynarmic/backend/x64/abi.h"
 #include "dynarmic/backend/x64/callback.h"
 #include "dynarmic/backend/x64/constant_pool.h"
diff --git a/src/dynarmic/src/dynarmic/backend/x64/callback.h b/src/dynarmic/src/dynarmic/backend/x64/callback.h
index 3254eea66c..2bd917ad76 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/callback.h
+++ b/src/dynarmic/src/dynarmic/backend/x64/callback.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
 
 /* This file is part of the dynarmic project.
@@ -12,7 +12,7 @@
 #include <vector>
 
 #include "dynarmic/common/common_types.h"
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 namespace Dynarmic::Backend::X64 {
 
diff --git a/src/dynarmic/src/dynarmic/backend/x64/constant_pool.h b/src/dynarmic/src/dynarmic/backend/x64/constant_pool.h
index 8115dcff26..efb19f48ed 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/constant_pool.h
+++ b/src/dynarmic/src/dynarmic/backend/x64/constant_pool.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
 
 /* This file is part of the dynarmic project.
@@ -15,7 +15,7 @@
 
 #include "dynarmic/common/common_types.h"
 #include <ankerl/unordered_dense.h>
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 namespace Dynarmic::Backend::X64 {
 
diff --git a/src/dynarmic/src/dynarmic/backend/x64/emit_x64.h b/src/dynarmic/src/dynarmic/backend/x64/emit_x64.h
index c63004ee6f..5de5f2dc7a 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/emit_x64.h
+++ b/src/dynarmic/src/dynarmic/backend/x64/emit_x64.h
@@ -18,8 +18,7 @@
 
 #include <mcl/bitsizeof.hpp>
 #include <ankerl/unordered_dense.h>
-#include <xbyak/xbyak.h>
-#include <xbyak/xbyak_util.h>
+#include "dynarmic/backend/x64/xbyak.h"
 #include <boost/container/small_vector.hpp>
 
 #include "dynarmic/backend/exception_handler.h"
diff --git a/src/dynarmic/src/dynarmic/backend/x64/emit_x64_floating_point.cpp b/src/dynarmic/src/dynarmic/backend/x64/emit_x64_floating_point.cpp
index 6e618130c4..76c103ec6f 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/emit_x64_floating_point.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/emit_x64_floating_point.cpp
@@ -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
 
 /* This file is part of the dynarmic project.
@@ -19,7 +19,7 @@
 #include <mcl/mp/typelist/lower_to_tuple.hpp>
 #include "dynarmic/common/common_types.h"
 #include <mcl/type_traits/integer_of_size.hpp>
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 #include "dynarmic/backend/x64/abi.h"
 #include "dynarmic/backend/x64/block_of_code.h"
diff --git a/src/dynarmic/src/dynarmic/backend/x64/emit_x64_memory.h b/src/dynarmic/src/dynarmic/backend/x64/emit_x64_memory.h
index 2836e0aad2..211f620ceb 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/emit_x64_memory.h
+++ b/src/dynarmic/src/dynarmic/backend/x64/emit_x64_memory.h
@@ -7,7 +7,7 @@
  */
 
 #include <bit>
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 #include "dynarmic/backend/x64/a32_emit_x64.h"
 #include "dynarmic/backend/x64/a64_emit_x64.h"
diff --git a/src/dynarmic/src/dynarmic/backend/x64/emit_x64_vector.cpp b/src/dynarmic/src/dynarmic/backend/x64/emit_x64_vector.cpp
index 5c5b376a8b..1f96939d88 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/emit_x64_vector.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/emit_x64_vector.cpp
@@ -18,7 +18,7 @@
 #include <mcl/bitsizeof.hpp>
 #include "dynarmic/common/common_types.h"
 #include <mcl/type_traits/function_info.hpp>
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 #include "dynarmic/backend/x64/abi.h"
 #include "dynarmic/backend/x64/block_of_code.h"
diff --git a/src/dynarmic/src/dynarmic/backend/x64/emit_x64_vector_floating_point.cpp b/src/dynarmic/src/dynarmic/backend/x64/emit_x64_vector_floating_point.cpp
index c2bd071b99..2247b18fcd 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/emit_x64_vector_floating_point.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/emit_x64_vector_floating_point.cpp
@@ -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
 
 /* This file is part of the dynarmic project.
@@ -21,7 +21,7 @@
 #include <mcl/mp/typelist/lower_to_tuple.hpp>
 #include <mcl/type_traits/function_info.hpp>
 #include <mcl/type_traits/integer_of_size.hpp>
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 #include "dynarmic/backend/x64/abi.h"
 #include "dynarmic/backend/x64/block_of_code.h"
diff --git a/src/dynarmic/src/dynarmic/backend/x64/hostloc.h b/src/dynarmic/src/dynarmic/backend/x64/hostloc.h
index 1158e48253..bd6a5cede8 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/hostloc.h
+++ b/src/dynarmic/src/dynarmic/backend/x64/hostloc.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
 
 /* This file is part of the dynarmic project.
@@ -9,7 +9,7 @@
 
 #include "dynarmic/common/assert.h"
 #include "dynarmic/common/common_types.h"
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 namespace Dynarmic::Backend::X64 {
 
diff --git a/src/dynarmic/src/dynarmic/backend/x64/oparg.h b/src/dynarmic/src/dynarmic/backend/x64/oparg.h
index 8aa2f35034..d16728d19f 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/oparg.h
+++ b/src/dynarmic/src/dynarmic/backend/x64/oparg.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
 
 /* This file is part of the dynarmic project.
@@ -9,7 +9,7 @@
 #pragma once
 
 #include "dynarmic/common/assert.h"
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 namespace Dynarmic::Backend::X64 {
 
diff --git a/src/dynarmic/src/dynarmic/backend/x64/reg_alloc.cpp b/src/dynarmic/src/dynarmic/backend/x64/reg_alloc.cpp
index 115cb22ee9..f4326204b2 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/reg_alloc.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/reg_alloc.cpp
@@ -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
 
 /* This file is part of the dynarmic project.
@@ -16,7 +16,7 @@
 #include <fmt/ostream.h>
 #include "dynarmic/common/assert.h"
 #include <bit>
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 #include "dynarmic/backend/x64/abi.h"
 #include "dynarmic/backend/x64/stack_layout.h"
diff --git a/src/dynarmic/src/dynarmic/backend/x64/reg_alloc.h b/src/dynarmic/src/dynarmic/backend/x64/reg_alloc.h
index a4467e32c7..c0a896f8c3 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/reg_alloc.h
+++ b/src/dynarmic/src/dynarmic/backend/x64/reg_alloc.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
 
 /* This file is part of the dynarmic project.
@@ -14,7 +14,7 @@
 
 #include "boost/container/small_vector.hpp"
 #include "dynarmic/common/common_types.h"
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 #include <boost/container/static_vector.hpp>
 #include <boost/container/flat_set.hpp>
 #include <boost/pool/pool_alloc.hpp>
diff --git a/src/dynarmic/src/dynarmic/backend/x64/xbyak.h b/src/dynarmic/src/dynarmic/backend/x64/xbyak.h
new file mode 100644
index 0000000000..3efc51f54f
--- /dev/null
+++ b/src/dynarmic/src/dynarmic/backend/x64/xbyak.h
@@ -0,0 +1,14 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#define XBYAK_STD_UNORDERED_SET ankerl::unordered_dense::set
+#define XBYAK_STD_UNORDERED_MAP ankerl::unordered_dense::map
+#define XBYAK_STD_UNORDERED_MULTIMAP boost::unordered_multimap
+
+#include <boost/unordered_map.hpp>
+#include <ankerl/unordered_dense.h>
+
+#include <xbyak/xbyak.h>
+#include <xbyak/xbyak_util.h>
diff --git a/src/dynarmic/src/dynarmic/common/spin_lock_x64.cpp b/src/dynarmic/src/dynarmic/common/spin_lock_x64.cpp
index aa2f25803d..7607bbaafc 100644
--- a/src/dynarmic/src/dynarmic/common/spin_lock_x64.cpp
+++ b/src/dynarmic/src/dynarmic/common/spin_lock_x64.cpp
@@ -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
 
 /* This file is part of the dynarmic project.
@@ -8,7 +8,7 @@
 
 #include <mutex>
 #include <optional>
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 #include "dynarmic/backend/x64/abi.h"
 #include "dynarmic/backend/x64/hostloc.h"
diff --git a/src/dynarmic/src/dynarmic/common/spin_lock_x64.h b/src/dynarmic/src/dynarmic/common/spin_lock_x64.h
index df6860e2f2..b17d4f67f8 100644
--- a/src/dynarmic/src/dynarmic/common/spin_lock_x64.h
+++ b/src/dynarmic/src/dynarmic/common/spin_lock_x64.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
 
 /* This file is part of the dynarmic project.
@@ -8,7 +8,7 @@
 
 #pragma once
 
-#include <xbyak/xbyak.h>
+#include "dynarmic/backend/x64/xbyak.h"
 
 namespace Dynarmic {