Add -ast-dump support for new and delete expressions to help figure out which operator got selected

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@232740 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AST/ASTDumper.cpp

@@ -508,6 +508,8 @@ namespace  {
     void VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *Node);
     void VisitCXXConstructExpr(const CXXConstructExpr *Node);
     void VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *Node);
+    void VisitCXXNewExpr(const CXXNewExpr *Node);
+    void VisitCXXDeleteExpr(const CXXDeleteExpr *Node);
     void VisitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *Node);
     void VisitExprWithCleanups(const ExprWithCleanups *Node);
     void VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *Node);
@@ -1917,6 +1919,28 @@ void ASTDumper::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *Node) {
   dumpCXXTemporary(Node->getTemporary());
 }
 
+void ASTDumper::VisitCXXNewExpr(const CXXNewExpr *Node) {
+  VisitExpr(Node);
+  OS << ' ';
+  if (Node->isGlobalNew())
+    OS << "global ";
+  if (Node->isArray())
+    OS << "array ";
+  dumpBareDeclRef(Node->getOperatorNew());
+  // We could dump the deallocation function used in case of error, but it's
+  // usually not that interesting.
+}
+
+void ASTDumper::VisitCXXDeleteExpr(const CXXDeleteExpr *Node) {
+  VisitExpr(Node);
+  OS << ' ';
+  if (Node->isGlobalDelete())
+    OS << "global ";
+  if (Node->isArrayForm())
+    OS << "array ";
+  dumpBareDeclRef(Node->getOperatorDelete());
+}
+
 void
 ASTDumper::VisitMaterializeTemporaryExpr(const MaterializeTemporaryExpr *Node) {
   VisitExpr(Node);

test/Misc/ast-dump-stmt.cpp

@@ -38,3 +38,20 @@ void TestCatch2() {
   catch (...) {
   }
 }
+
+void TestAllocationExprs() {
+  int *p;
+  p = new int;
+  delete p;
+  p = new int[2];
+  delete[] p;
+  p = ::new int;
+  ::delete p;
+}
+// CHECK: FunctionDecl {{.*}} TestAllocationExprs
+// CHECK: CXXNewExpr {{.*}} 'int *' Function {{.*}} 'operator new'
+// CHECK: CXXDeleteExpr {{.*}} 'void' Function {{.*}} 'operator delete'
+// CHECK: CXXNewExpr {{.*}} 'int *' array Function {{.*}} 'operator new[]'
+// CHECK: CXXDeleteExpr {{.*}} 'void' array Function {{.*}} 'operator delete[]'
+// CHECK: CXXNewExpr {{.*}} 'int *' global Function {{.*}} 'operator new'
+// CHECK: CXXDeleteExpr {{.*}} 'void' global Function {{.*}} 'operator delete'