1 files changed, 79 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/opt/memcpy1.C b/gcc/testsuite/g++.dg/opt/memcpy1.C
new file mode 100644
index 000000000..f29134599
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/memcpy1.C
@@ -0,0 +1,79 @@
+// PR target/34403
+// Origin: Martin Michlmayr <tbm@cyrius.com>
+
+// { dg-do compile }
+// { dg-options "-O" }
+
+typedef unsigned char uint8_t;
+typedef uint8_t uint8;
+__extension__ typedef __SIZE_TYPE__ size_t;
+class csVector2
+{
+public:float x;
+};
+class csBox2
+{
+};
+struct iBase
+{
+};
+struct iClipper2D:public virtual iBase
+{
+};
+template < class Class > class scfImplementation:public virtual iBase
+{
+};
+template < class Class, class I1 > class scfImplementation1:public
+scfImplementation < Class >,
+  public I1
+{
+};
+class csClipper:public scfImplementation1 < csClipper, iClipper2D >
+{
+};
+class csBoxClipper:public csClipper
+{
+  csBox2 region;
+  virtual uint8 Clip (csVector2 * InPolygon, size_t InCount,
+                      csVector2 * OutPolygon, size_t & OutCount);
+};
+struct StatusOutputNone
+{
+};
+namespace CS
+{
+  template < typename BoxTest, typename StatusOutput > class BoxClipper
+  {
+    BoxTest boxTest;
+    StatusOutput statOut;
+    const csBox2 & region;
+    csVector2 *InP;
+    size_t InV;
+    csVector2 *OutP;
+    size_t OutV;
+  public:  BoxClipper (const BoxTest & boxTest, const StatusOutput & statOut,
+                  const csBox2 & region, csVector2 * InP, size_t InV,
+                  csVector2 * OutP):boxTest (boxTest), statOut (statOut),
+      region (region), InP (InP), InV (InV), OutP (OutP), OutV (-1)
+    {
+    }
+    uint8 Clip ()
+    {
+      __builtin_memcpy (this->OutP, InP, OutV * sizeof (csVector2));
+    }
+  };
+}
+struct BoxTestAll
+{
+};
+uint8
+csBoxClipper::Clip (csVector2 * InPolygon, size_t InCount,
+                    csVector2 * OutPolygon, size_t & OutCount)
+{
+  BoxTestAll b;
+  StatusOutputNone n;
+  CS::BoxClipper < BoxTestAll, StatusOutputNone > boxClip (b, n, region,
+                                                           InPolygon, InCount,
+                                                           OutPolygon);
+  uint8 Clipped = boxClip.Clip ();
+}