[PATCH] x86/boot: Optimise 32 bit C source code

[Frediano Ziglio <frediano.ziglio@xxxxxxxxx>]

The various filters are removing all optimisations.
No need to have all optimisations turned off.

Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
---
 xen/arch/x86/boot/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/boot/Makefile b/xen/arch/x86/boot/Makefile
index 8f5bbff0cc..26737ce25b 100644
--- a/xen/arch/x86/boot/Makefile
+++ b/xen/arch/x86/boot/Makefile
@@ -13,7 +13,7 @@ $(obj)/head.o: $(head-bin-objs:.o=.bin)
 
 CFLAGS_x86_32 := $(subst -m64,-m32 -march=i686,$(XEN_TREEWIDE_CFLAGS))
 $(call cc-options-add,CFLAGS_x86_32,CC,$(EMBEDDED_EXTRA_CFLAGS))
-CFLAGS_x86_32 += -Werror -fno-builtin -g0 -msoft-float -mregparm=3
+CFLAGS_x86_32 += -Werror -fno-builtin -g0 -msoft-float -mregparm=3 -O2
 CFLAGS_x86_32 += -nostdinc -include $(filter 
%/include/xen/config.h,$(XEN_CFLAGS))
 CFLAGS_x86_32 += $(filter -I%,$(XEN_CFLAGS))
 
-- 
2.34.1