From 5957b19fb8faeaed8d51be8e8091ad10165ec2b4 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Sun, 21 Jul 2019 00:27:23 -0400
Subject: [PATCH] Fix AVX2 feature test under Clang 3.3 Clang 3.3 appears to
 support some of AVX2, but it is missing _mm256_broadcastsi128_si256.

---
 TestPrograms/test_x86_avx2.cxx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/TestPrograms/test_x86_avx2.cxx b/TestPrograms/test_x86_avx2.cxx
index 073e9c6f..919339ef 100644
--- a/TestPrograms/test_x86_avx2.cxx
+++ b/TestPrograms/test_x86_avx2.cxx
@@ -1,7 +1,9 @@
 #include <immintrin.h>
 int main(int argc, char* argv[])
 {
-	__m256i x = _mm256_setzero_si256();
-	x=_mm256_add_epi64 (x,x);
+	// _mm256_broadcastsi128_si256 due to Clang
+	__m128i x = _mm_setzero_si128 ();
+	__m256i y = _mm256_broadcastsi128_si256 (x);
+	y = _mm256_add_epi64 (y,y);
 	return 0;
 }