From 4f6fe8293640347b910bc9555185e12b6cb4c009 Mon Sep 17 00:00:00 2001
From: offtkp <parisoplop@gmail.com>
Date: Wed, 28 Aug 2024 23:18:05 +0300
Subject: [PATCH] Make filter check for SSE4a

---
 src/core/cpu_patches.cpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/core/cpu_patches.cpp b/src/core/cpu_patches.cpp
index 857c1537..29c9fa88 100644
--- a/src/core/cpu_patches.cpp
+++ b/src/core/cpu_patches.cpp
@@ -5,6 +5,7 @@
 #include <mutex>
 #include <Zydis/Zydis.h>
 #include <xbyak/xbyak.h>
+#include <xbyak/xbyak_util.h>
 #include "common/assert.h"
 #include "common/types.h"
 #include "core/tls.h"
@@ -289,9 +290,9 @@ static bool FilterTcbAccess(const ZydisDecodedOperand* operands) {
            dst_op.reg.value <= ZYDIS_REGISTER_R15;
 }
 
-// For instructions that always need to be patched
-static bool FilterAlwaysTrue(const ZydisDecodedOperand*) {
-    return true;
+static bool FilterNoSSE4a(const ZydisDecodedOperand*) {
+    Xbyak::util::Cpu cpu;
+    return !cpu.has(Xbyak::util::Cpu::tSSE4a);
 }
 
 static void GenerateTcbAccess(const ZydisDecodedOperand* operands, Xbyak::CodeGenerator& c) {
@@ -483,7 +484,7 @@ static const std::unordered_map<ZydisMnemonic, PatchInfo> Patches = {
     {ZYDIS_MNEMONIC_MOV, {FilterTcbAccess, GenerateTcbAccess, false}},
 #endif
 
-    {ZYDIS_MNEMONIC_INSERTQ, {FilterAlwaysTrue, GenerateINSERTQ, true}},
+    {ZYDIS_MNEMONIC_INSERTQ, {FilterNoSSE4a, GenerateINSERTQ, true}},
 
 #ifdef __APPLE__
     // BMI1 instructions that are not supported by Rosetta 2 on Apple Silicon.