liblzma: CRC64 CLMUL: Use __asm to work around a MSVC problem

Thanks to Iouri Kharon for testing and the fix.

src/liblzma/check/crc64_fast.c

@@ -136,6 +136,14 @@ crc64_dispatch(const uint8_t *buf, size_t size, uint64_t crc)
 extern LZMA_API(uint64_t)
 lzma_crc64(const uint8_t *buf, size_t size, uint64_t crc)
 {
+#if defined(_MSC_VER) && !defined(__INTEL_COMPILER) && !defined(__clang__) \
+		&& defined(_M_IX86)
+	// VS2015-2022 might corrupt the ebx register on 32-bit x86.
+	// This hack forces MSVC to store and restore ebx.
+	// This is only needed here, not in lzma_crc32().
+	__asm  mov ebx, ebx
+#endif
+
 #if defined(CRC64_GENERIC) && defined(CRC64_ARCH_OPTIMIZED)
 	return crc64_func(buf, size, crc);