glcpp: Remove trailing contexts from #if rules.

[mesa.git] / src / glsl / ir_visitor.h

diff --git a/src/glsl/ir_visitor.h b/src/glsl/ir_visitor.h
index a6f9d2b7ee33f9b371a71e27399de516c0b5ccca..7dd35fe1dc3aef8a286248442be8a12b7e2ab230 100644 (file)
--- a/src/glsl/ir_visitor.h
+++ b/src/glsl/ir_visitor.h
@@ -57,10 +57,28 @@ public:
    virtual void visit(class ir_constant *) = 0;
    virtual void visit(class ir_call *) = 0;
    virtual void visit(class ir_return *) = 0;
+   virtual void visit(class ir_discard *) = 0;
    virtual void visit(class ir_if *) = 0;
    virtual void visit(class ir_loop *) = 0;
    virtual void visit(class ir_loop_jump *) = 0;
    /*@}*/
 };
 
+/* NOTE: function calls may never return due to discards inside them
+ * This is usually not an issue, but if it is, keep it in mind
+ */
+class ir_control_flow_visitor : public ir_visitor {
+public:
+   virtual void visit(class ir_variable *) {}
+   virtual void visit(class ir_expression *) {}
+   virtual void visit(class ir_texture *) {}
+   virtual void visit(class ir_swizzle *) {}
+   virtual void visit(class ir_dereference_variable *) {}
+   virtual void visit(class ir_dereference_array *) {}
+   virtual void visit(class ir_dereference_record *) {}
+   virtual void visit(class ir_assignment *) {}
+   virtual void visit(class ir_constant *) {}
+   virtual void visit(class ir_call *) {}
+};
+
 #endif /* IR_VISITOR_H */