SDL: blit: Check MSVC's `_M_ARM64` define in addition to `__aarch64__`. (98ed8)

SDL Commits
1 
From 98ed8b98b179b4f9ca480332434a042dc2b0b194 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Mon, 24 Nov 2025 13:36:27 -0500
Subject: [PATCH] blit: Check MSVC's `_M_ARM64` define in addition to
 `__aarch64__`.

Reference Issue #14519.

(cherry picked from commit 4e79d2ad64576e9ec650635609d217ab25a89b11)
---
 src/video/SDL_blit_A.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/video/SDL_blit_A.c b/src/video/SDL_blit_A.c
index 340acc3d78d49..8a6b997866c86 100644
--- a/src/video/SDL_blit_A.c
+++ b/src/video/SDL_blit_A.c
@@ -1299,7 +1299,7 @@ static void SDL_TARGETING("avx2") Blit8888to8888PixelAlphaSwizzleAVX2(SDL_BlitIn
 
 #endif
 
-#if defined(SDL_NEON_INTRINSICS) && (__ARM_ARCH >= 8) && defined(__aarch64__)
+#if defined(SDL_NEON_INTRINSICS) && (__ARM_ARCH >= 8) && (defined(__aarch64__) || defined(_M_ARM64))
 
 static void Blit8888to8888PixelAlphaSwizzleNEON(SDL_BlitInfo *info)
 {
@@ -1504,7 +1504,7 @@ SDL_BlitFunc SDL_CalculateBlitA(SDL_Surface *surface)
                     return Blit8888to8888PixelAlphaSwizzleLSX;
                 }
 #endif
-#if defined(SDL_NEON_INTRINSICS) && (__ARM_ARCH >= 8) && defined(__aarch64__)
+#if defined(SDL_NEON_INTRINSICS) && (__ARM_ARCH >= 8) && (defined(__aarch64__) || defined(_M_ARM64))
                 // To prevent "unused function" compiler warnings/errors
                 (void)Blit8888to8888PixelAlpha;
                 (void)Blit8888to8888PixelAlphaSwizzle;