#ifndef __included_crc32_h__
#define __included_crc32_h__
+#include <vppinfra/clib.h>
+
#if __SSE4_2__
+#define clib_crc32c_uses_intrinsics
#include <x86intrin.h>
+#define crc32_u64 _mm_crc32_u64
+#define crc32_u32 _mm_crc32_u32
+
static_always_inline u32
clib_crc32c (u8 * s, int len)
{
#else
/* workaround weird GCC bug when using _mm_crc32_u32
which happens with -O2 optimization */
+#if !defined (__i686__)
volatile ("":::"memory");
+#endif
#endif
for (; len >= 4; len -= 4, s += 4)
return v;
}
-#endif
+#elif __ARM_FEATURE_CRC32
+#define clib_crc32c_uses_intrinsics
+#include <arm_acle.h>
+
+
+#define crc32_u64 __crc32cd
+#define crc32_u32 __crc32cw
+static_always_inline u32
+clib_crc32c (u8 * s, int len)
+{
+ u32 v = 0;
+
+ for (; len >= 8; len -= 8, s += 8)
+ v = __crc32cd (v, *((u64 *) s));
+
+ for (; len >= 4; len -= 4, s += 4)
+ v = __crc32cw (v, *((u32 *) s));
+
+ for (; len >= 2; len -= 2, s += 2)
+ v = __crc32ch (v, *((u16 *) s));
+
+ for (; len >= 1; len -= 1, s += 1)
+ v = __crc32cb (v, *((u8 *) s));
+
+ return v;
+}
+
+#endif
#endif /* __included_crc32_h__ */
/*