From 9078341a06b05e41236e9cd5d6d0314da7eb8eec Mon Sep 17 00:00:00 2001
From: yamashi <yamashi@live.com>
Date: Tue, 15 Dec 2020 23:00:33 +0100
Subject: [PATCH] Fix AVX support, apparently it's more complicated than just 1
 bit

https://insufficientlycomplicated.wordpress.com/2011/11/07/detecting-intel-advanced-vector-extensions-avx-in-visual-studio/
---
 src/avx_patch.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/avx_patch.cpp b/src/avx_patch.cpp
index 17806d69..ea10773e 100644
--- a/src/avx_patch.cpp
+++ b/src/avx_patch.cpp
@@ -18,7 +18,10 @@ bool IsAVXSupported()
         __cpuidex(cpui.data(), 1, 0);
         std::bitset<32> ecx = cpui[2];
 
-        return ecx[28];
+        if(ecx[27] && ecx[28])
+        {
+            return (_xgetbv(_XCR_XFEATURE_ENABLED_MASK) & 6) == 6;
+        }
     }
 
     return false;