1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/parse/register1.C b/gcc/testsuite/g++.dg/parse/register1.C
new file mode 100644
index 000000000..3be2e6525
--- /dev/null
+++ b/gcc/testsuite/g++.dg/parse/register1.C
@@ -0,0 +1,14 @@
+// PR c++/23839
+
+class C
+{
+  int i;
+public:
+  C(int j) : i(j) { }
+  operator int() { return i; }
+};
+
+C f (register C x)
+{
+  return x + 31;
+}