From c18229535a167f994e7cd42b6801d8bb25253e58 Mon Sep 17 00:00:00 2001
From: Matthias Hochsteger <mhochsteger@cerbsim.com>
Date: Thu, 17 Nov 2022 13:34:24 +0100
Subject: [PATCH] Lo/Hi for SIMD<8>

---
 libsrc/core/simd_avx512.hpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libsrc/core/simd_avx512.hpp b/libsrc/core/simd_avx512.hpp
index ae37e1f0..821e52d2 100644
--- a/libsrc/core/simd_avx512.hpp
+++ b/libsrc/core/simd_avx512.hpp
@@ -135,6 +135,9 @@ namespace ngcore
     NETGEN_INLINE __m512d Data() const { return data; }
     NETGEN_INLINE __m512d & Data() { return data; }
 
+    SIMD<double,4> Lo() const { return _mm512_extractf64x4_pd(data, 0); }
+    SIMD<double,4> Hi() const { return _mm512_extractf64x4_pd(data, 1); }
+
     template <int I>
     double Get() const
     {