bepeephole: Factorise code to register peephole optimizations.

ir/be/arm/arm_optimize.c

@@ -163,15 +163,6 @@ static void peephole_arm_Str_Ldr(ir_node *node)
 	attr->offset = 0;
 }
 
-/**
- * Register a peephole optimization function.
- */
-static void register_peephole_optimization(ir_op *op, peephole_opt_func func)
-{
-	assert(op->ops.generic == NULL);
-	op->ops.generic = (op_func)func;
-}
-
 /* Perform peephole-optimizations. */
 void arm_peephole_optimization(ir_graph *irg)
 {

ir/be/bepeephole.h

@@ -73,6 +73,15 @@ bool be_can_move_down(ir_heights_t *heights, const ir_node *node,
 bool be_can_move_up(ir_heights_t *heights, const ir_node *node,
                     const ir_node *after);
 
+/**
+ * Register a peephole optimization function.
+ */
+static inline void register_peephole_optimization(ir_op *const op, peephole_opt_func const func)
+{
+	assert(!op->ops.generic);
+	op->ops.generic = (op_func)func;
+}
+
 /**
  * Do peephole optimizations. It traverses the schedule of all blocks in
  * backward direction. The register_values variable indicates which (live)

ir/be/ia32/ia32_optimize.c

@@ -1011,16 +1011,6 @@ static void peephole_ia32_Rol(ir_node *node)
 	}
 }
 
-
-/**
- * Register a peephole optimization function.
- */
-static void register_peephole_optimization(ir_op *op, peephole_opt_func func)
-{
-	assert(op->ops.generic == NULL);
-	op->ops.generic = (op_func)func;
-}
-
 /* Perform peephole-optimizations. */
 void ia32_peephole_optimization(ir_graph *irg)
 {

ir/be/sparc/sparc_finish.c

@@ -607,12 +607,6 @@ static void peephole_sparc_SubCC(ir_node *node)
 	remove_unused_CC(node, op_sparc_Sub);
 }
 
-static void register_peephole_optimization(ir_op *op, peephole_opt_func func)
-{
-	assert(op->ops.generic == NULL);
-	op->ops.generic = (op_func) func;
-}
-
 static bool is_frame_load(const ir_node *node)
 {
 	return is_sparc_Ld(node) || is_sparc_Ldf(node);