-void set_opt_unreachable_code(int value);
-
-/** Enables/Disables control flow optimizations.
- *
- * Performs Straightening, if simplifications and loop simplifications.
- * Sets all separate control flow flags (control_flow_straightening,
- * weak_simplification, strong_simplification and critical_edges).
- */
-void set_opt_control_flow(int value);
-
-/** Enables/Disables Straightening. */
-void set_opt_control_flow_straightening(int value);
-
-/** Enables/Disables if simplifications in local optimizations. */
-void set_opt_control_flow_weak_simplification(int value);
-
-/** Enables/Disables strong if and loop simplification (in optimize_cf). */
-void set_opt_control_flow_strong_simplification(int value);
-
-/**
- * Enables/Disable overflow unsafe transformations (default off).
- * If enabled, SubIu(x, 1) might be transformed into AddIu(x, 0xFFFFFFFF).
- * While enabling generates better code, it invalidates strength reduction
- * of linear-function-test-replacement.
- * So, if strength reduction is used, enable it AFTER strength reduction runs.
- */
-void set_opt_overflow_unsafe_transform(int value);