[common/cpu_detect] Remove SSE/SSE2/FMA4/AVX_VNNI detection (#3979)

Removes Eden's own feature detection for SSE, SSE2, FMA4 and AVX_VNNI, in order to clean up code and make the function slightly lighter. They are all unused and I have specific reasons for their removal:
- SSE/SSE2 are always true for x64
- FMA4 is a deprecated AMD exclusive extension, replaced by the regular FMA and was logged here as "FMA" for no reason
- AVX_VNNI simply does not seem applicable for Eden (but can still be checked for through Xbyak's feature detection if necessary)

Co-authored-by: RedBlackAka <140876408+RedBlackAka@users.noreply.github.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3979
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

1 files changed, 0 insertions, 6 deletions

diff --git a/src/common/x64/cpu_detect.cpp b/src/common/x64/cpu_detect.cpp
index 4cc42ccbd5..d613954eb5 100644
--- a/src/common/x64/cpu_detect.cpp
+++ b/src/common/x64/cpu_detect.cpp
@@ -106,8 +106,6 @@ static CPUCaps Detect() {
     // Detect family and other miscellaneous features
     if (max_std_fn >= 1) {
         __cpuid(cpu_id, 0x00000001);
-        caps.sse = Common::Bit<25>(cpu_id[3]);
-        caps.sse2 = Common::Bit<26>(cpu_id[3]);
         caps.sse3 = Common::Bit<0>(cpu_id[2]);
         caps.pclmulqdq = Common::Bit<1>(cpu_id[2]);
         caps.ssse3 = Common::Bit<9>(cpu_id[2]);
@@ -150,9 +148,6 @@ static CPUCaps Detect() {
 
             caps.waitpkg = Common::Bit<5>(cpu_id[2]);
             caps.gfni = Common::Bit<8>(cpu_id[2]);
-
-            __cpuidex(cpu_id, 0x00000007, 0x00000001);
-            caps.avx_vnni = caps.avx && Common::Bit<4>(cpu_id[0]);
         }
     }
 
@@ -170,7 +165,6 @@ static CPUCaps Detect() {
         // Check for more features
         __cpuid(cpu_id, 0x80000001);
         caps.lzcnt = Common::Bit<5>(cpu_id[2]);
-        caps.fma4 = Common::Bit<16>(cpu_id[2]);
         caps.monitorx = Common::Bit<29>(cpu_id[2]);
     }