sparc: Make sparc_introduce_prolog_epilog() static.

ir/be/sparc/bearch_sparc_t.h

@@ -64,8 +64,6 @@ static inline bool sparc_is_value_imm_encodeable(int32_t value)
 
 void sparc_finish_graph(ir_graph *irg);
 
-void sparc_introduce_prolog_epilog(ir_graph *irg);
-
 void sparc_lower_64bit(void);
 
 bool sparc_variadic_fixups(ir_graph *irg, calling_convention_t *cconv);

ir/be/sparc/sparc_finish.c

@@ -166,7 +166,7 @@ static void introduce_epilog(ir_node *ret)
 	}
 }
 
-void sparc_introduce_prolog_epilog(ir_graph *irg)
+static void sparc_introduce_prolog_epilog(ir_graph *irg)
 {
 	const arch_register_t *sp_reg     = &sparc_registers[REG_SP];
 	ir_node               *start      = get_irg_start(irg);