1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree.h b/gcc/tree.h
index 9c11818..ad21877 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -4208,6 +4208,7 @@ extern int operand_equal_p (tree, tree, unsigned int);
 extern tree omit_one_operand (tree, tree, tree);
 extern tree omit_two_operands (tree, tree, tree, tree);
 extern tree invert_truthvalue (tree);
+extern tree fold_truth_not_expr (tree);
 extern tree fold_unary_to_constant (enum tree_code, tree, tree);
 extern tree fold_binary_to_constant (enum tree_code, tree, tree, tree);
 extern tree fold_read_from_constant_string (tree);