From 9b9a1cd040fe4b8453927a2faaa1abbb4871f650 Mon Sep 17 00:00:00 2001
From: Yu-Cheng Ling <ycling@google.com>
Date: Thu, 18 Jan 2018 11:31:21 -0800
Subject: TFLite iOS Makefile: Enable SSE4.1 for x86_64 build. This makes the
 simulator slightly faster.

PiperOrigin-RevId: 182411030
---
 tensorflow/contrib/lite/ios_makefile.inc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tensorflow/contrib/lite/ios_makefile.inc b/tensorflow/contrib/lite/ios_makefile.inc
index bcff7ed988..26cfe6c3e2 100644
--- a/tensorflow/contrib/lite/ios_makefile.inc
+++ b/tensorflow/contrib/lite/ios_makefile.inc
@@ -30,6 +30,9 @@ ifeq ($(TARGET), IOS)
 		${IPHONEOS_SYSROOT} \
 		-arch $(IOS_ARCH) \
 		-O3
+	ifeq ($(IOS_ARCH), x86_64)
+		CXXFLAGS += -msse4.1
+	endif
 	CCFLAGS += -miphoneos-version-min=$(MIN_SDK_VERSION) \
 		-fembed-bitcode \
 		-mno-thumb \
-- 
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