vppinfra: splat and gather vector inlines

Type: improvement

Change-Id: I4b00b3a6ff63fc8b313c89217ccdea356c0783a3
Signed-off-by: Damjan Marion <damarion@cisco.com>

diff --git a/src/vppinfra/vector_avx2.h b/src/vppinfra/vector_avx2.h
index 17271b8..ee3d540 100644 (file)
--- a/src/vppinfra/vector_avx2.h
+++ b/src/vppinfra/vector_avx2.h
@@ -335,6 +335,18 @@ u32x8_scatter_one (u32x8 r, int index, void *p)
   *(u32 *) p = r[index];
 }
 
+#define u32x8_gather_u32(base, indices, scale)                                \
+  (u32x8) _mm256_i32gather_epi32 (base, (__m256i) indices, scale)
+
+#ifdef __AVX512F__
+#define u32x8_scatter_u32(base, indices, v, scale)                            \
+  _mm256_i32scatter_epi32 (base, (__m256i) indices, (__m256i) v, scale)
+#else
+#define u32x8_scatter_u32(base, indices, v, scale)                            \
+  for (u32 i = 0; i < 8; i++)                                                 \
+    *((u32u *) ((u8 *) base + (scale) * (indices)[i])) = (v)[i];
+#endif
+
 static_always_inline u8x32
 u8x32_blend (u8x32 v1, u8x32 v2, u8x32 mask)
 {
@@ -428,6 +440,12 @@ u32x8_splat_u32x4 (u32x4 a)
   return (u32x8) _mm256_broadcastsi128_si256 ((__m128i) a);
 }
 
+static_always_inline u64x4
+u64x4_splat_u64x2 (u64x2 a)
+{
+  return (u64x4) _mm256_broadcastsi128_si256 ((__m128i) a);
+}
+
 static_always_inline u8x32
 u8x32_load_partial (u8 *data, uword n)
 {

diff --git a/src/vppinfra/vector_avx512.h b/src/vppinfra/vector_avx512.h
index b745b46..f15a04e 100644 (file)
--- a/src/vppinfra/vector_avx512.h
+++ b/src/vppinfra/vector_avx512.h
@@ -326,6 +326,12 @@ u32x16_splat_u32x4 (u32x4 a)
   return (u32x16) _mm512_broadcast_i64x2 ((__m128i) a);
 }
 
+static_always_inline u64x8
+u64x8_splat_u64x2 (u64x2 a)
+{
+  return (u64x8) _mm512_broadcast_i64x2 ((__m128i) a);
+}
+
 static_always_inline u32x16
 u32x16_mask_blend (u32x16 a, u32x16 b, u16 mask)
 {