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-rw-r--r--src/glsl/ast.h1
-rw-r--r--src/glsl/ir.h1
-rw-r--r--src/glsl/ir_hierarchical_visitor.h1
3 files changed, 3 insertions, 0 deletions
diff --git a/src/glsl/ast.h b/src/glsl/ast.h
index a77b522705..1420f234b6 100644
--- a/src/glsl/ast.h
+++ b/src/glsl/ast.h
@@ -129,6 +129,7 @@ protected:
* be created.
*/
ast_node(void);
+ virtual ~ast_node() {}
};
diff --git a/src/glsl/ir.h b/src/glsl/ir.h
index 102a68b655..f3c1d42108 100644
--- a/src/glsl/ir.h
+++ b/src/glsl/ir.h
@@ -131,6 +131,7 @@ protected:
ir_type = ir_type_unset;
type = NULL;
}
+ virtual ~ir_instruction() {}
};
diff --git a/src/glsl/ir_hierarchical_visitor.h b/src/glsl/ir_hierarchical_visitor.h
index dc177f5eb0..387563f113 100644
--- a/src/glsl/ir_hierarchical_visitor.h
+++ b/src/glsl/ir_hierarchical_visitor.h
@@ -77,6 +77,7 @@ enum ir_visitor_status {
class ir_hierarchical_visitor {
public:
ir_hierarchical_visitor();
+ virtual ~ir_hierarchical_visitor() {}
/**
* \name Visit methods for leaf-node classes