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-rw-r--r--src/glsl/ir_hierarchical_visitor.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/glsl/ir_hierarchical_visitor.h b/src/glsl/ir_hierarchical_visitor.h
index dc177f5eb0d..387563f1139 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