[FIX][Attributor] Fix broken build due to missing virtual deconstructors.

The lack some virtual deconstructors where causing some builds bots to fail.
This patch fixes that.

Problematic commit:
https://reviews.llvm.org/rGeaf1b6810ce0f40008b2b1d902750eafa3e198d3

Build bot:
https://lab.llvm.org/buildbot/#/builders/18/builds/1741

diff --git a/llvm/include/llvm/Transforms/IPO/Attributor.h b/llvm/include/llvm/Transforms/IPO/Attributor.h
index 5cad4c5..439c0a4 100644 (file)
--- a/llvm/include/llvm/Transforms/IPO/Attributor.h
+++ b/llvm/include/llvm/Transforms/IPO/Attributor.h
@@ -3882,6 +3882,7 @@ private:
 
 struct AACallGraphNode {
   AACallGraphNode(Attributor &A) : A(A) {}
+  virtual ~AACallGraphNode() {}
 
   virtual AACallEdgeIterator optimisticEdgesBegin() const = 0;
   virtual AACallEdgeIterator optimisticEdgesEnd() const = 0;
@@ -3944,6 +3945,7 @@ struct AACallEdges : public StateWrapper<BooleanState, AbstractAttribute>,
 // Synthetic root node for the Attributor's internal call graph.
 struct AttributorCallGraph : public AACallGraphNode {
   AttributorCallGraph(Attributor &A) : AACallGraphNode(A) {}
+  virtual ~AttributorCallGraph() {}
 
   AACallEdgeIterator optimisticEdgesBegin() const override {
     return AACallEdgeIterator(A, A.Functions.begin());