1 files changed, 27 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/wself-assign-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/wself-assign-1.c
new file mode 100644
index 000000000..19324a645
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/wself-assign-1.c
@@ -0,0 +1,27 @@
+/* Test the self-assignemnt detection and warning.  */
+/* { dg-do compile } */
+/* { dg-options "-Wself-assign" } */
+
+struct Bar {
+  int b_;
+  int c_;
+};
+
+int g;
+
+int main()
+{
+  struct Bar *bar;
+  int x = x; /* { dg-warning "assigned to itself" } */
+  static int y;
+  struct Bar b_array[5];
+
+  b_array[x+g].b_ = b_array[x+g].b_; /* { dg-warning "assigned to itself" } */
+  g = g; /* { dg-warning "assigned to itself" } */
+  y = y; /* { dg-warning "assigned to itself" } */
+  bar->b_ = bar->b_; /* { dg-warning "assigned to itself" } */
+  x += 0; /* should not warn */
+  y -= 0; /* should not warn */
+  x /= x; /* should not warn */
+  y *= y; /* should not warn */
+}