# define ONLY_IF_THREADS_ENABLED(x) NULL
#endif
-#if HAVE_MMX
+#if HAVE_MMX && HAVE_INLINE_ASM
/**
* Empty mmx state.
* this must be called between any dsp function and float/double code.
if(av_get_cpu_flags() & AV_CPU_FLAG_MMX)
__asm__ volatile ("emms" ::: "memory");
}
+#elif HAVE_MMX && HAVE_MM_EMPTY
+# include <mmintrin.h>
+# define emms_c _mm_empty
#else /* HAVE_MMX */
-#define emms_c()
+# define emms_c()
#endif /* HAVE_MMX */
#endif /* AVUTIL_INTERNAL_H */