1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-bogus-placement-new.C b/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-bogus-placement-new.C
new file mode 100644
index 000000000..514957bcd
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wstrict-aliasing-bogus-placement-new.C
@@ -0,0 +1,29 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -Wstrict-aliasing" } */
+
+inline void *operator new (__SIZE_TYPE__, void *__p) throw() { return __p; }
+
+struct Y {
+  Y() {}
+  int i;
+};
+
+struct X {
+  X() {}
+  void construct(const Y& y)
+  {
+    new (&m_data[0]) Y(y);
+  }
+  bool initialized;
+  char m_data[sizeof (Y)];
+};
+
+void bar(const X&);
+void foo(Y& y)
+{
+  X x;
+  x.construct(y);
+  x.initialized = true;
+  bar(x);
+}
+