From 15d0e8ca8a89294b39019a859c7b4161c902d806 Mon Sep 17 00:00:00 2001
From: "Peter W. Draper" <p.w.draper@durham.ac.uk>
Date: Fri, 21 Oct 2016 18:27:58 +0100
Subject: [PATCH] Add tentative support for KNL AVX512
Also what might work on Skylake, but these cpuids are hard to comfirm
---
m4/ax_cc_maxopt.m4 | 2 ++
1 file changed, 2 insertions(+)
diff --git a/m4/ax_cc_maxopt.m4 b/m4/ax_cc_maxopt.m4
index d2a0937232..d5b87c903c 100644
--- a/m4/ax_cc_maxopt.m4
+++ b/m4/ax_cc_maxopt.m4
@@ -128,6 +128,8 @@ if test "$ac_test_CFLAGS" != "set"; then
*3?6[[cf]]?:*:*:*|*4?6[[56]]?:*:*:*|*4?6[[ef]]?:*:*:*) icc_flags="-xCORE-AVX2 -xCORE-AVX-I -xAVX -SSE4.2 -xS -xT -xB -xK" ;;
*000?f[[346]]?:*:*:*|?f[[346]]?:*:*:*|f[[346]]?:*:*:*) icc_flags="-xSSE3 -xP -xO -xN -xW -xK" ;;
*00??f??:*:*:*|??f??:*:*:*|?f??:*:*:*|f??:*:*:*) icc_flags="-xSSE2 -xN -xW -xK" ;;
+ *5?6E?:*:*:*) icc_flags="-xCORE-AVX512" ;;
+ *5?67?:*:*:*) icc_flags="-xMIC-AVX512" ;;
esac ;;
esac ;;
esac
--
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