libvpx: Pull from upstream

source/libvpx/third_party/libyuv/source/compare_win.cc

Index: source/libvpx/third_party/libyuv/source/compare_win.cc
diff --git a/source/libvpx/third_party/libyuv/source/compare_win.cc b/source/libvpx/third_party/libyuv/source/compare_win.cc
index e99009a21dff24c63f341f9ef3344068feffaeb0..19806f275095391d480282416040d981471a258b 100644
--- a/source/libvpx/third_party/libyuv/source/compare_win.cc
+++ b/source/libvpx/third_party/libyuv/source/compare_win.cc
@@ -16,9 +16,11 @@ namespace libyuv {
 extern "C" {
 #endif
 
-#if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && defined(_MSC_VER)
+// This module is for Visual C x86.
+#if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && \
+    defined(_MSC_VER) && !defined(__clang__)
 
-__declspec(naked) __declspec(align(16))
+__declspec(naked)
 uint32 SumSquareError_SSE2(const uint8* src_a, const uint8* src_b, int count) {
   __asm {
     mov        eax, [esp + 4]    // src_a
@@ -59,7 +61,7 @@ uint32 SumSquareError_SSE2(const uint8* src_a, const uint8* src_b, int count) {
 #if _MSC_VER >= 1700
 // C4752: found Intel(R) Advanced Vector Extensions; consider using /arch:AVX.
 #pragma warning(disable: 4752)
-__declspec(naked) __declspec(align(16))
+__declspec(naked)
 uint32 SumSquareError_AVX2(const uint8* src_a, const uint8* src_b, int count) {
   __asm {
     mov        eax, [esp + 4]    // src_a
@@ -133,7 +135,7 @@ static uvec32 kHashMul3 = {
 #define pmulld(reg) _asm _emit 0x66 _asm _emit 0x0F _asm _emit 0x38 \
     _asm _emit 0x40 _asm _emit reg
 
-__declspec(naked) __declspec(align(16))
+__declspec(naked)
 uint32 HashDjb2_SSE41(const uint8* src, int count, uint32 seed) {
   __asm {
     mov        eax, [esp + 4]    // src
@@ -184,7 +186,7 @@ uint32 HashDjb2_SSE41(const uint8* src, int count, uint32 seed) {
 
 // Visual C 2012 required for AVX2.
 #if _MSC_VER >= 1700
-__declspec(naked) __declspec(align(16))
+__declspec(naked)
 uint32 HashDjb2_AVX2(const uint8* src, int count, uint32 seed) {
   __asm {
     mov        eax, [esp + 4]    // src
@@ -219,8 +221,7 @@ uint32 HashDjb2_AVX2(const uint8* src, int count, uint32 seed) {
   }
 }
 #endif  // _MSC_VER >= 1700
-
-#endif  // !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && defined(_MSC_VER)
+#endif  // !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86)
 
 #ifdef __cplusplus
 }  // extern "C"