[pushed] c++: add fixed test [PR109521]

[Marek Polacek]

Tested x86_64-pc-linux-gnu, applying to trunk.

-- >8 --
Fixed by r16-4212.

        PR c++/109521

gcc/testsuite/ChangeLog:

        * g++.dg/warn/Wuninitialized-35.C: New test.
---
 gcc/testsuite/g++.dg/warn/Wuninitialized-35.C | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/warn/Wuninitialized-35.C

diff --git a/gcc/testsuite/g++.dg/warn/Wuninitialized-35.C 
b/gcc/testsuite/g++.dg/warn/Wuninitialized-35.C
new file mode 100644
index 00000000000..91b99dcb8d4
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wuninitialized-35.C
@@ -0,0 +1,21 @@
+// PR c++/109521
+// { dg-do compile { target c++11 } }
+// { dg-options "-O2 -Wall" }
+
+struct vector {
+  vector& operator=(vector&&)
+  {
+    return *this;
+  }
+};
+struct T {     // { dg-warning "is used uninitialized" }
+  vector v;
+  unsigned char pad[7];
+  T(){}
+};
+T t;
+void
+foo ()
+{
+  t = T();
+}

base-commit: 000d2da1c0b77e57314db40922960caa0ac36b01
-- 
2.53.0