1 files changed, 62 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/opt/temp2.C b/gcc/testsuite/g++.dg/opt/temp2.C
new file mode 100644
index 000000000..35520a242
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/temp2.C
@@ -0,0 +1,62 @@
+// { dg-do run }
+
+// Copyright (C) 2006 Free Software Foundation, Inc.
+
+// Originally from PR 16681, found also in init/array15.C
+// This variant of the testcase verifies that we do not create
+// a temporary on the stack, which is PR 27620.
+
+int i;
+
+extern "C"
+void *memcpy (void *dest, const void *src, __SIZE_TYPE__ n)
+{
+  char *d = (char *) dest;
+  const char *s = (const char *) src;
+  while (n--)
+    d[n] = s[n];
+  ++i;
+  return dest;
+}
+
+struct foo {
+  unsigned char buffer[41112];
+  foo() ;
+  bool check () const;
+};
+
+foo::foo ()
+  : buffer()
+{}
+
+bool foo::check () const
+{
+  for (unsigned ix = sizeof (buffer); ix--;)
+    if (buffer[ix])
+      return false;
+  return true;
+}
+
+void *operator new (__SIZE_TYPE__ size, void *p)
+{
+  return p;
+}
+
+char heap[50000];
+
+int main ()
+{
+  for (unsigned ix = sizeof (heap); ix--;)
+    heap[ix] = ix;
+
+  i = 0;
+  foo *f = new (heap) foo ();
+
+  if (i != 0)
+    return 1;
+  if (!f->check ())
+    return 1;
+  return 0;
+}
+
+