openwrtv4/target/linux/generic/pending-3.18/201-extra_optimization.patch

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--- a/Makefile
+++ b/Makefile
@@ -618,9 +618,9 @@ KBUILD_CFLAGS += $(call cc-option,-fno-P
KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
-KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
+KBUILD_CFLAGS += -Os $(EXTRA_OPTIMIZATION) $(call cc-disable-warning,maybe-uninitialized,)
else
-KBUILD_CFLAGS += -O2
+KBUILD_CFLAGS += -O2 -fno-reorder-blocks -fno-tree-ch $(EXTRA_OPTIMIZATION)
endif
# Tell gcc to never replace conditional load with a non-conditional one