1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/eh/synth1.C b/gcc/testsuite/g++.dg/eh/synth1.C
new file mode 100644
index 000000000..ac3cab8b1
--- /dev/null
+++ b/gcc/testsuite/g++.dg/eh/synth1.C
@@ -0,0 +1,27 @@
+// PR c++/6179
+
+// Bug: we tried to look at the fields of 'const A' to determine the proper
+// exception specification for the synthesized copy constructor, but
+// TYPE_FIELDS hadn't been set yet, so we incorrectly got a throw() spec.
+
+struct B
+{
+  B () {}
+  B (const B&) { throw 1; }
+};
+
+struct A;
+void f (const A &) {}
+struct A
+{
+  B b;
+};
+
+int main ()
+{
+  A a;  
+  try
+    { A a2 (a); }
+  catch (...)
+    { }
+}