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-rw-r--r--src/vppinfra/vector_sse42.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/vppinfra/vector_sse42.h b/src/vppinfra/vector_sse42.h
index a2d737a4892..0c1b2f0324f 100644
--- a/src/vppinfra/vector_sse42.h
+++ b/src/vppinfra/vector_sse42.h
@@ -617,6 +617,15 @@ u8x16_msb_mask (u8x16 v)
#undef _signed_binop
+static_always_inline u32x4
+u32x4_byte_swap (u32x4 v)
+{
+ u8x16 swap = {
+ 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
+ };
+ return (u32x4) _mm_shuffle_epi8 ((__m128i) v, (__m128i) swap);
+}
+
static_always_inline u16x8
u16x8_byte_swap (u16x8 v)
{