--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/g++.dg/tree-ssa/pr82294.C	Thu Feb 13 11:34:05 2020 +0900
@@ -0,0 +1,13 @@
+// PR c++/82294
+// { dg-do compile { target c++11 } }
+// { dg-options "-O2 -fdump-tree-gimple" }
+
+// Verify we don't "optimize" the ctor as copying a 1KB .rodata
+// object into the variable.  It is better to initialize it through
+// a loop.
+// { dg-final { scan-tree-dump-not "this->arr = " "gimple" } }
+
+struct S { int x; explicit constexpr S (); };
+constexpr S::S () : x{7} {}
+struct T { S arr[256]; explicit T (); };
+T::T () {}