clang's -Woverloaded-virtual fires if a subclass overloads an virtual method from a base class. The intent is to have this warning catch cases where the subclass overrides a superclass method, but then the signature of the superclass is changed and one forgets to update the subclass method, changing the overload into an override.

Here's where this warning fires in mesa (this is with the version of mesa used in Chromium, but I spot-checked on trunk and at least some of these are still around). For methods that are supposed to be overloads, the fix is to make the parameter lists match. For methods that are unrelated but have the same name, the fix is to rename the subclass method to something else (the code is correct, but confusing to both readers and compilers).



..\..\third_party\mesa\src\src\glsl\lower_discard_flow.cpp(64,22) :  error(clang): 'lower_discard_flow_visitor::visit_enter' hides overloaded virtual functions [-Werror,-Woverloaded-virtual]
   ir_visitor_status visit_enter(ir_loop_jump *ir);
                     ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(115,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_function *' vs 'ir_loop_jump *')
   virtual ir_visitor_status visit_enter(class ir_function *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(117,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_expression *' vs 'ir_loop_jump *')
   virtual ir_visitor_status visit_enter(class ir_expression *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(119,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_texture *' vs 'ir_loop_jump *')
   virtual ir_visitor_status visit_enter(class ir_texture *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(121,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_swizzle *' vs 'ir_loop_jump *')
   virtual ir_visitor_status visit_enter(class ir_swizzle *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(123,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_dereference_array *' vs 'ir_loop_jump *')
   virtual ir_visitor_status visit_enter(class ir_dereference_array *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(125,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_dereference_record *' vs 'ir_loop_jump *')
   virtual ir_visitor_status visit_enter(class ir_dereference_record *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(127,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_assignment *' vs 'ir_loop_jump *')
   virtual ir_visitor_status visit_enter(class ir_assignment *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(129,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_call *' vs 'ir_loop_jump *')
   virtual ir_visitor_status visit_enter(class ir_call *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(131,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_return *' vs 'ir_loop_jump *')
   virtual ir_visitor_status visit_enter(class ir_return *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(135,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_if *' vs 'ir_loop_jump *')
   virtual ir_visitor_status visit_enter(class ir_if *);
                             ^
1 error generated.




..\..\third_party\mesa\src\src\glsl\lower_jumps.cpp(388,17) :  error(clang): 'ir_lower_jumps_visitor::visit' hides overloaded virtual functions [-Werror,-Woverloaded-virtual]
   virtual void visit(class ir_loop_jump * ir)
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(73,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_variable *' vs 'class ir_loop_jump *')
   virtual void visit(class ir_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(74,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_expression *' vs 'class ir_loop_jump *')
   virtual void visit(class ir_expression *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(75,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_texture *' vs 'class ir_loop_jump *')
   virtual void visit(class ir_texture *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(76,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_swizzle *' vs 'class ir_loop_jump *')
   virtual void visit(class ir_swizzle *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(77,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_variable *' vs 'class ir_loop_jump *')
   virtual void visit(class ir_dereference_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(78,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_array *' vs 'class ir_loop_jump *')
   virtual void visit(class ir_dereference_array *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(79,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_record *' vs 'class ir_loop_jump *')
   virtual void visit(class ir_dereference_record *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(80,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_assignment *' vs 'class ir_loop_jump *')
   virtual void visit(class ir_assignment *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(81,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_constant *' vs 'class ir_loop_jump *')
   virtual void visit(class ir_constant *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(82,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_call *' vs 'class ir_loop_jump *')
   virtual void visit(class ir_call *) {}
                ^
..\..\third_party\mesa\src\src\glsl\lower_jumps.cpp(410,17) :  error(clang): 'ir_lower_jumps_visitor::visit' hides overloaded virtual functions [-Werror,-Woverloaded-virtual]
   virtual void visit(class ir_return * ir)
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(73,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_variable *' vs 'class ir_return *')
   virtual void visit(class ir_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(74,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_expression *' vs 'class ir_return *')
   virtual void visit(class ir_expression *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(75,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_texture *' vs 'class ir_return *')
   virtual void visit(class ir_texture *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(76,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_swizzle *' vs 'class ir_return *')
   virtual void visit(class ir_swizzle *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(77,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_variable *' vs 'class ir_return *')
   virtual void visit(class ir_dereference_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(78,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_array *' vs 'class ir_return *')
   virtual void visit(class ir_dereference_array *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(79,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_record *' vs 'class ir_return *')
   virtual void visit(class ir_dereference_record *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(80,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_assignment *' vs 'class ir_return *')
   virtual void visit(class ir_assignment *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(81,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_constant *' vs 'class ir_return *')
   virtual void visit(class ir_constant *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(82,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_call *' vs 'class ir_return *')
   virtual void visit(class ir_call *) {}
                ^
..\..\third_party\mesa\src\src\glsl\lower_jumps.cpp(432,17) :  error(clang): 'ir_lower_jumps_visitor::visit' hides overloaded virtual functions [-Werror,-Woverloaded-virtual]
   virtual void visit(class ir_discard * ir)
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(73,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_variable *' vs 'class ir_discard *')
   virtual void visit(class ir_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(74,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_expression *' vs 'class ir_discard *')
   virtual void visit(class ir_expression *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(75,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_texture *' vs 'class ir_discard *')
   virtual void visit(class ir_texture *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(76,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_swizzle *' vs 'class ir_discard *')
   virtual void visit(class ir_swizzle *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(77,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_variable *' vs 'class ir_discard *')
   virtual void visit(class ir_dereference_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(78,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_array *' vs 'class ir_discard *')
   virtual void visit(class ir_dereference_array *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(79,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_record *' vs 'class ir_discard *')
   virtual void visit(class ir_dereference_record *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(80,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_assignment *' vs 'class ir_discard *')
   virtual void visit(class ir_assignment *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(81,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_constant *' vs 'class ir_discard *')
   virtual void visit(class ir_constant *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(82,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_call *' vs 'class ir_discard *')
   virtual void visit(class ir_call *) {}
                ^
..\..\third_party\mesa\src\src\glsl\lower_jumps.cpp(512,17) :  error(clang): 'ir_lower_jumps_visitor::visit' hides overloaded virtual functions [-Werror,-Woverloaded-virtual]
   virtual void visit(ir_if *ir)
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(73,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_variable *' vs 'ir_if *')
   virtual void visit(class ir_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(74,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_expression *' vs 'ir_if *')
   virtual void visit(class ir_expression *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(75,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_texture *' vs 'ir_if *')
   virtual void visit(class ir_texture *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(76,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_swizzle *' vs 'ir_if *')
   virtual void visit(class ir_swizzle *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(77,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_variable *' vs 'ir_if *')
   virtual void visit(class ir_dereference_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(78,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_array *' vs 'ir_if *')
   virtual void visit(class ir_dereference_array *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(79,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_record *' vs 'ir_if *')
   virtual void visit(class ir_dereference_record *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(80,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_assignment *' vs 'ir_if *')
   virtual void visit(class ir_assignment *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(81,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_constant *' vs 'ir_if *')
   virtual void visit(class ir_constant *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(82,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_call *' vs 'ir_if *')
   virtual void visit(class ir_call *) {}
                ^
..\..\third_party\mesa\src\src\glsl\lower_jumps.cpp(828,17) :  error(clang): 'ir_lower_jumps_visitor::visit' hides overloaded virtual functions [-Werror,-Woverloaded-virtual]
   virtual void visit(ir_loop *ir)
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(73,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_variable *' vs 'ir_loop *')
   virtual void visit(class ir_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(74,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_expression *' vs 'ir_loop *')
   virtual void visit(class ir_expression *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(75,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_texture *' vs 'ir_loop *')
   virtual void visit(class ir_texture *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(76,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_swizzle *' vs 'ir_loop *')
   virtual void visit(class ir_swizzle *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(77,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_variable *' vs 'ir_loop *')
   virtual void visit(class ir_dereference_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(78,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_array *' vs 'ir_loop *')
   virtual void visit(class ir_dereference_array *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(79,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_record *' vs 'ir_loop *')
   virtual void visit(class ir_dereference_record *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(80,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_assignment *' vs 'ir_loop *')
   virtual void visit(class ir_assignment *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(81,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_constant *' vs 'ir_loop *')
   virtual void visit(class ir_constant *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(82,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_call *' vs 'ir_loop *')
   virtual void visit(class ir_call *) {}
                ^
..\..\third_party\mesa\src\src\glsl\lower_jumps.cpp(943,17) :  error(clang): 'ir_lower_jumps_visitor::visit' hides overloaded virtual functions [-Werror,-Woverloaded-virtual]
   virtual void visit(ir_function_signature *ir)
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(73,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_variable *' vs 'ir_function_signature *')
   virtual void visit(class ir_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(74,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_expression *' vs 'ir_function_signature *')
   virtual void visit(class ir_expression *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(75,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_texture *' vs 'ir_function_signature *')
   virtual void visit(class ir_texture *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(76,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_swizzle *' vs 'ir_function_signature *')
   virtual void visit(class ir_swizzle *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(77,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_variable *' vs 'ir_function_signature *')
   virtual void visit(class ir_dereference_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(78,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_array *' vs 'ir_function_signature *')
   virtual void visit(class ir_dereference_array *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(79,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_record *' vs 'ir_function_signature *')
   virtual void visit(class ir_dereference_record *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(80,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_assignment *' vs 'ir_function_signature *')
   virtual void visit(class ir_assignment *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(81,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_constant *' vs 'ir_function_signature *')
   virtual void visit(class ir_constant *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(82,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_call *' vs 'ir_function_signature *')
   virtual void visit(class ir_call *) {}
                ^
..\..\third_party\mesa\src\src\glsl\lower_jumps.cpp(989,17) :  error(clang): 'ir_lower_jumps_visitor::visit' hides overloaded virtual functions [-Werror,-Woverloaded-virtual]
   virtual void visit(class ir_function * ir)
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(73,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_variable *' vs 'class ir_function *')
   virtual void visit(class ir_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(74,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_expression *' vs 'class ir_function *')
   virtual void visit(class ir_expression *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(75,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_texture *' vs 'class ir_function *')
   virtual void visit(class ir_texture *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(76,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_swizzle *' vs 'class ir_function *')
   virtual void visit(class ir_swizzle *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(77,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_variable *' vs 'class ir_function *')
   virtual void visit(class ir_dereference_variable *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(78,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_array *' vs 'class ir_function *')
   virtual void visit(class ir_dereference_array *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(79,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_dereference_record *' vs 'class ir_function *')
   virtual void visit(class ir_dereference_record *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(80,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_assignment *' vs 'class ir_function *')
   virtual void visit(class ir_assignment *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(81,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_constant *' vs 'class ir_function *')
   virtual void visit(class ir_constant *) {}
                ^
..\..\third_party\mesa\src\src\glsl/ir_visitor.h(82,17) :  note(clang): hidden overloaded virtual function 'ir_control_flow_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_call *' vs 'class ir_function *')
   virtual void visit(class ir_call *) {}
                ^
7 errors generated.



..\..\third_party\mesa\src\src\glsl\opt_constant_variable.cpp(52,30) :  error(clang): '(anonymous namespace)::ir_constant_variable_visitor::visit_enter' hides overloaded virtual functions [-Werror,-Woverloaded-virtual]
   virtual ir_visitor_status visit_enter(ir_dereference_variable *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(111,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_loop *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_loop *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(113,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_function_signature *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_function_signature *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(115,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_function *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_function *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(117,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_expression *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_expression *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(119,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_texture *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_texture *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(121,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_swizzle *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_swizzle *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(123,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_dereference_array *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_dereference_array *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(125,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_dereference_record *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_dereference_record *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(131,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_return *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_return *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(133,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_discard *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_discard *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(135,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit_enter' declared here: type mismatch at 1st parameter ('class ir_if *' vs 'ir_dereference_variable *')
   virtual ir_visitor_status visit_enter(class ir_if *);
                             ^
1 error generated.




..\..\third_party\mesa\src\src\glsl\opt_dead_code_local.cpp(100,30) :  error(clang): '(anonymous namespace)::kill_for_derefs_visitor::visit' hides overloaded virtual functions [-Werror,-Woverloaded-virtual]
   virtual ir_visitor_status visit(ir_swizzle *ir)
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(85,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_rvalue *' vs 'ir_swizzle *')
   virtual ir_visitor_status visit(class ir_rvalue *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(86,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_variable *' vs 'ir_swizzle *')
   virtual ir_visitor_status visit(class ir_variable *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(87,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_constant *' vs 'ir_swizzle *')
   virtual ir_visitor_status visit(class ir_constant *);
                             ^
..\..\third_party\mesa\src\src\glsl/ir_hierarchical_visitor.h(88,30) :  note(clang): hidden overloaded virtual function 'ir_hierarchical_visitor::visit' declared here: type mismatch at 1st parameter ('class ir_loop_jump *' vs 'ir_swizzle *')
   virtual ir_visitor_status visit(class ir_loop_jump *);
                             ^
1 error generated.