#include "config.h"
#include "libavutil/attributes.h"
+#if !AV_GCC_VERSION_AT_LEAST(4,1)
#define av_bswap16 av_bswap16
static av_always_inline av_const unsigned av_bswap16(unsigned x)
{
__asm__("rorw $8, %w0" : "+r"(x));
return x;
}
+#endif /* !AV_GCC_VERSION_AT_LEAST(4,1) */
+#if !AV_GCC_VERSION_AT_LEAST(4,5)
#define av_bswap32 av_bswap32
static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
{
-#if HAVE_BSWAP
__asm__("bswap %0" : "+r" (x));
-#else
- __asm__("rorw $8, %w0 \n\t"
- "rorl $16, %0 \n\t"
- "rorw $8, %w0"
- : "+r"(x));
-#endif
return x;
}
return x;
}
#endif
+#endif /* !AV_GCC_VERSION_AT_LEAST(4,5) */
#endif /* AVUTIL_X86_BSWAP_H */