We accept this testcase after r11-7985.
gcc/testsuite/ChangeLog:
PR c++/90215
* g++.dg/cpp1z/fold-lambda4.C: New test.
---
gcc/testsuite/g++.dg/cpp1z/fold-lambda4.C | 30 +++++++++++++++++++++++
1 file changed, 30 insertions(+)
create mode 100644 gcc/testsuite/g++.dg/cpp1z/fold-lambda4.C
diff --git a/gcc/testsuite/g++.dg/cpp1z/fold-lambda4.C
b/gcc/testsuite/g++.dg/cpp1z/fold-lambda4.C
new file mode 100644
index 00000000000..b8bae8602ad
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1z/fold-lambda4.C
@@ -0,0 +1,30 @@
+// PR c++/90215
+// { dg-do compile { target c++17 } }
+
+struct X
+{
+ template <class F>
+ void f(F f)
+ {
+ f(0);
+ }
+};
+
+template <class... Xs>
+void bug(Xs... xs)
+{
+ int i;
+
+ [&](auto&... ys)
+ {
+ (xs.f([&](auto)
+ {
+ ys;
+ }), ...);
+ }(i);
+}
+
+int main()
+{
+ bug(X{});
+}
--
2.31.1.272.g89b43f80a5
