openwrtv4/target/linux/generic/pending-4.4/201-extra_optimization.patch

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--- a/Makefile
+++ b/Makefile
@@ -624,12 +624,12 @@ KBUILD_CFLAGS += $(call cc-disable-warni
KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
-KBUILD_CFLAGS += -Os
+KBUILD_CFLAGS += -Os $(EXTRA_OPTIMIZATION)
else
ifdef CONFIG_PROFILE_ALL_BRANCHES
-KBUILD_CFLAGS += -O2
+KBUILD_CFLAGS += -O2 $(EXTRA_OPTIMIZATION)
else
-KBUILD_CFLAGS += -O2
+KBUILD_CFLAGS += -O2 -fno-reorder-blocks -fno-tree-ch $(EXTRA_OPTIMIZATION)
endif
endif