From: Sirshak Das <sirshak.das@arm.com>
Date: Wed, 22 Aug 2018 06:04:33 +0000 (+0800)
Subject: Add u32x4_extend_to_u64x2 for aarch64 using NEON intrinsics
X-Git-Tag: v18.10-rc1~225
X-Git-Url: https://gerrit.fd.io/r/gitweb?a=commitdiff_plain;h=8e5d5db24ed72da265cda75bb3f23d35530109e8;p=vpp.git

Add u32x4_extend_to_u64x2 for aarch64 using NEON intrinsics

This is used in vlib_get_buffers_with_offset.

Change-Id: If4ff776bc97d21a22e870300b164eeb6a5ec3638
Signed-off-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
Reviewed-by: Brian Brooks <brian.brooks@arm.com>
Reviewed-by: Yi He <yi.he@arm.com>
Verified-by: Lijian Zhang <lijian.zhang@arm.com>
---

diff --git a/src/vppinfra/vector_neon.h b/src/vppinfra/vector_neon.h
index adea39a14ec..2c3578c1f35 100644
--- a/src/vppinfra/vector_neon.h
+++ b/src/vppinfra/vector_neon.h
@@ -140,6 +140,12 @@ u32x4_hadd (u32x4 v1, u32x4 v2)
   return (u32x4) vpaddq_u32 (v1, v2);
 }
 
+static_always_inline u64x2
+u32x4_extend_to_u64x2 (u32x4 v)
+{
+  return vmovl_u32 (vget_low_u32 (v));
+}
+
 #define CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE
 #define CLIB_VEC128_SPLAT_DEFINED
 #endif /* included_vector_neon_h */