1 files changed, 24 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/g++.dg/tree-ssa/pr31146-2.C b/gcc-4.9/gcc/testsuite/g++.dg/tree-ssa/pr31146-2.C
new file mode 100644
index 000000000..d2edb1953
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/g++.dg/tree-ssa/pr31146-2.C
@@ -0,0 +1,24 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fdump-tree-forwprop1" } */
+
+#include <new>
+
+template <class T>
+struct Vec
+{
+  Vec()
+  {
+    for (int i=0; i<3; ++i)
+      new (&a[i]) T(0);
+  }
+  T a[3];
+};
+
+double foo (void)
+{
+  Vec<double> v;
+  return v.a[2];
+}
+
+/* { dg-final { scan-tree-dump "Replaced .* != 0B. with .1" "forwprop1" } } */
+/* { dg-final { cleanup-tree-dump "forwprop1" } } */