From 040fd79ef7fa3b47683a98d6cbc301c368ca6807 Mon Sep 17 00:00:00 2001
From: squidbus <175574877+squidbus@users.noreply.github.com>
Date: Mon, 7 Apr 2025 10:57:39 -0700
Subject: [PATCH] Revert "build: Target same CPU architecture level as PS4.
 (#2745)" (#2757)

* Revert "build: Target same CPU architecture level as PS4. (#2745)"

This reverts commit 54b4d7fc788d570c14924d21fbb1f58de0254aad.

Causing issues on M1 CPUs for some reason.

* build: Update architecture comments and set mtune=generic.
---
 CMakeLists.txt | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c5d9f7c9c..7f3d4468f 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -54,8 +54,9 @@ else()
 endif()
 
 if (ARCHITECTURE STREQUAL "x86_64")
-    # Target the same x86_64 feature set as the PS4 CPU to match requirements.
-    add_compile_options(-march=btver2 -mno-sse4a)
+    # Target Sandy Bridge as a reasonable subset of instructions supported by PS4 and host CPUs.
+    # Note that the native PS4 architecture 'btver2' has been attempted but causes issues with M1 CPUs.
+    add_compile_options(-march=sandybridge -mtune=generic)
 endif()
 
 if (APPLE AND ARCHITECTURE STREQUAL "x86_64" AND CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "arm64")