From 33b550e22726b5b077141216a4c458005a2292b8 Mon Sep 17 00:00:00 2001
From: Markus Hitter <mah@jump-ing.de>
Date: Tue, 23 Oct 2012 12:52:57 +0200
Subject: [PATCH] Makefile: add better optimisation flags.

Fetched from V-USB's Readme.txt. Saves almost 200 bytes and thus
likely makes the binary faster.
---
 Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Makefile b/Makefile
index 6f1bb20..f797024 100644
--- a/Makefile
+++ b/Makefile
@@ -104,6 +104,8 @@ OBJCOPY = $(ARCH)objcopy
 OPTIMIZE = -Os -ffunction-sections -finline-functions-called-once -mcall-prologues
 # OPTIMIZE = -O0
 CFLAGS = -g -Wall -Wstrict-prototypes $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS) -std=gnu99 -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -save-temps -Winline
+CFLAGS += -fno-move-loop-invariants
+CFLAGS += -fno-tree-scev-cprop
 LDFLAGS = -Wl,--as-needed -Wl,--gc-sections
 LIBS = -lm
 LIBDEPS =