From 8813b79c5be90c41c9dbb7d4d4244500f13db4e0 Mon Sep 17 00:00:00 2001
From: Ashwini Khade <askhade@microsoft.com>
Date: Tue, 27 Aug 2019 15:52:03 -0700
Subject: [PATCH] make gemmlowp default for arm (#1701)

* make gemmlowp default for arm

* force use_gemmlowp in header for default case

* remove unnecessary white space
---
 onnxruntime/core/util/qmath.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/onnxruntime/core/util/qmath.h b/onnxruntime/core/util/qmath.h
index 3cec9047f3..f6ce7bcaa2 100644
--- a/onnxruntime/core/util/qmath.h
+++ b/onnxruntime/core/util/qmath.h
@@ -1,5 +1,14 @@
 #pragma once
-//#define USE_GEMMLOWP
+
+// default to gemmlowp when building for arm devices
+#ifndef USE_GEMMLOWP
+#if defined(_M_ARM64) || defined(__aarch64__)
+#define USE_GEMMLOWP
+#endif
+#if defined(_M_ARM) || defined(__arm__)
+#define USE_GEMMLOWP
+#endif
+#endif
 
 #ifdef USE_GEMMLOWP
 #include "core/util/gemmlowp_common.h"