From 59d6000405321d826a0b4088d4fe854e8533bb8c Mon Sep 17 00:00:00 2001
From: Jeffy Chen <jeffy.chen@rock-chips.com>
Date: Wed, 15 May 2019 10:36:05 +0800
Subject: [PATCH] Use -Ofast -ffast-math

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---
 Makefile.libretro        | 4 ++++
 scripts/genie.lua        | 3 ++-
 scripts/src/3rdparty.lua | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/Makefile.libretro b/Makefile.libretro
index 7cc1b2c804..2645f4db99 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -7,6 +7,7 @@ NO_USE_MIDI ?= 1
 NO_USE_PORTAUDIO ?= 1
 PTR64 ?= 1 
 TARGET ?= mame
+OPTIMIZE ?= fast
 # OS ?= linux
 # TARGETOS ?= linux
 PYTHON_EXECUTABLE ?= python2
@@ -95,6 +96,9 @@ ifeq ($(DEBUG),1)
 else
 	BUILDFLAGS += CONFIG=libretro
 endif
+ifneq ($(OPTIMIZE),)
+	TARGETFLAGS += OPTIMIZE=$(OPTIMIZE)
+endif
 
 
 ###########################################################################
diff --git a/scripts/genie.lua b/scripts/genie.lua
index 48d03d3b15..ac24342d60 100644
--- a/scripts/genie.lua
+++ b/scripts/genie.lua
@@ -871,7 +871,8 @@ end
 if _OPTIONS["OPTIMIZE"] then
 	buildoptions {
 		"-O".. _OPTIONS["OPTIMIZE"],
-		"-fno-strict-aliasing"
+		"-fno-strict-aliasing",
+		"-ffast-math",
 	}
 	if _OPTIONS["OPT_FLAGS"] then
 		buildoptions {
diff --git a/scripts/src/3rdparty.lua b/scripts/src/3rdparty.lua
index 2a31b4ee39..1e2d3e57c4 100644
--- a/scripts/src/3rdparty.lua
+++ b/scripts/src/3rdparty.lua
@@ -965,6 +965,7 @@ project "sqlite3"
 			"-Wno-unused-but-set-variable",
 			"-Wno-bad-function-cast",
 			"-Wno-undef",
+			"-fno-fast-math",
 		}
 if _OPTIONS["gcc"]~=nil and ((string.find(_OPTIONS["gcc"], "clang") or string.find(_OPTIONS["gcc"], "asmjs") or string.find(_OPTIONS["gcc"], "android"))) then
 		buildoptions_c {
-- 
2.11.0