From 609cea1eb8149944c00018eb5209965995055d0b Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Tue, 10 Aug 2021 17:14:06 -0700
Subject: [PATCH] Enable SSE3 intrinsics when building with Visual Studio

Fixes https://github.com/libsdl-org/SDL/issues/4530
---
 include/SDL_cpuinfo.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/SDL_cpuinfo.h b/include/SDL_cpuinfo.h
index 4401c3796..aa3f4bb31 100644
--- a/include/SDL_cpuinfo.h
+++ b/include/SDL_cpuinfo.h
@@ -63,6 +63,9 @@ _m_prefetch(void *__P)
 #ifndef __SSE2__
 #define __SSE2__
 #endif
+#ifndef __SSE3__
+#define __SSE3__
+#endif
 #elif defined(__MINGW64_VERSION_MAJOR)
 #include <intrin.h>
 #if !defined(SDL_DISABLE_ARM_NEON_H) && defined(__ARM_NEON)