nat: documention fix

[vpp.git] / src / vppinfra / vector_sse42.h

diff --git a/src/vppinfra/vector_sse42.h b/src/vppinfra/vector_sse42.h
index 7e75ad2..7c8e625 100644 (file)
--- a/src/vppinfra/vector_sse42.h
+++ b/src/vppinfra/vector_sse42.h
@@ -411,24 +411,6 @@ u32x4_sum_elts (u32x4 sum4)
   return sum4[0];
 }
 
-static_always_inline u8x16
-u8x16_shuffle (u8x16 v, u8x16 m)
-{
-  return (u8x16) _mm_shuffle_epi8 ((__m128i) v, (__m128i) m);
-}
-
-static_always_inline u32x4
-u32x4_shuffle (u32x4 v, const int a, const int b, const int c, const int d)
-{
-#if defined(__clang__) || !__OPTIMIZE__
-  u32x4 r = { v[a], v[b], v[c], v[d] };
-  return r;
-#else
-  return (u32x4) _mm_shuffle_epi32 ((__m128i) v,
-                                   a | b << 2 | c << 4 | d << 6);
-#endif
-}
-
 /* _from_ */
 /* *INDENT-OFF* */
 #define _(f,t,i) \
@@ -495,12 +477,6 @@ u32x4_scatter_one (u32x4 r, int index, void *p)
   *(u32 *) p = r[index];
 }
 
-static_always_inline u8x16
-u8x16_is_greater (u8x16 v1, u8x16 v2)
-{
-  return (u8x16) _mm_cmpgt_epi8 ((__m128i) v1, (__m128i) v2);
-}
-
 static_always_inline u8x16
 u8x16_blend (u8x16 v1, u8x16 v2, u8x16 mask)
 {
@@ -517,6 +493,68 @@ u8x16_xor3 (u8x16 a, u8x16 b, u8x16 c)
   return a ^ b ^ c;
 }
 
+static_always_inline u8x16
+u8x16_load_partial (u8 *data, uword n)
+{
+  u8x16 r = {};
+#if defined(CLIB_HAVE_VEC128_MASK_LOAD_STORE)
+  return u8x16_mask_load_zero (data, pow2_mask (n));
+#endif
+  if (n > 7)
+    {
+      u64x2 r;
+      r[1] = *(u64u *) (data + n - 8);
+      r >>= (16 - n) * 8;
+      r[0] = *(u64u *) data;
+      return (u8x16) r;
+    }
+  else if (n > 3)
+    {
+      u32x4 r = {};
+      r[1] = *(u32u *) (data + n - 4);
+      r >>= (8 - n) * 8;
+      r[0] = *(u32u *) data;
+      return (u8x16) r;
+    }
+  else if (n > 1)
+    {
+      u16x8 r = {};
+      r[1] = *(u16u *) (data + n - 2);
+      r >>= (4 - n) * 8;
+      r[0] = *(u16u *) data;
+      return (u8x16) r;
+    }
+  else if (n > 0)
+    r[0] = *data;
+  return r;
+}
+
+static_always_inline void
+u8x16_store_partial (u8x16 r, u8 *data, uword n)
+{
+#if defined(CLIB_HAVE_VEC256_MASK_LOAD_STORE)
+  u8x16_mask_store (r, data, pow2_mask (n));
+#else
+  if (n > 7)
+    {
+      *(u64u *) (data + n - 8) = ((u64x2) r)[1] << ((16 - n) * 8);
+      *(u64u *) data = ((u64x2) r)[0];
+    }
+  else if (n > 3)
+    {
+      *(u32u *) (data + n - 4) = ((u32x4) r)[1] << ((8 - n) * 8);
+      *(u32u *) data = ((u32x4) r)[0];
+    }
+  else if (n > 1)
+    {
+      *(u16u *) (data + n - 2) = ((u16x8) r)[1] << ((4 - n) * 8);
+      *(u16u *) data = ((u16x8) r)[0];
+    }
+  else if (n > 0)
+    data[0] = r[0];
+#endif
+}
+
 #endif /* included_vector_sse2_h */
 
 /*