From d277a2e6ef8556bac17f190d0efa72ae854d921a Mon Sep 17 00:00:00 2001
From: tensor-tang <tangjian03@baidu.com>
Date: Tue, 6 Nov 2018 10:57:39 +0800
Subject: [PATCH] fix avx512f flag (#14041)

---
 cmake/simd.cmake | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cmake/simd.cmake b/cmake/simd.cmake
index 3eacf4d86aa..566dc75fda0 100644
--- a/cmake/simd.cmake
+++ b/cmake/simd.cmake
@@ -89,7 +89,9 @@ CHECK_CXX_SOURCE_RUNS("
 #include <immintrin.h>
 int main()
 {
-    __m512i a = _mm512_undefined_epi32();
+    __m512i a = _mm512_set_epi32 (-1, 2, -3, 4, -1, 2, -3, 4,
+                                  13, -5, 6, -7, 9, 2, -6, 3);
+    __m512i result = _mm512_abs_epi32 (a);
     return 0;
 }" AVX512F_FOUND)
 
-- 
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