1 files changed, 47 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr25311.c b/gcc/testsuite/gcc.c-torture/compile/pr25311.c
new file mode 100644
index 000000000..26c5bc37b
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr25311.c
@@ -0,0 +1,47 @@
+
+struct w
+{
+  int top;
+  int left;
+  int height;
+  int width;
+  struct w *next;
+  struct w *parent;
+  struct w *child;
+};
+
+extern struct w *Qnil;
+
+void
+set_size (struct w *w, int new_size, int nodelete, int set_height)
+{
+  int old_size = set_height? w->height : w->width;
+
+  if (nodelete || w->parent == Qnil)
+    {
+      int last_pos, last_old_pos, pos, old_pos, first;
+      int div_val = old_size << 1;
+      struct w *c;
+
+      last_pos = first = set_height? w->top : w->left;
+      last_old_pos = 0;
+
+      for (c = w->child; c != Qnil; c = c->next)
+	{
+	  if (set_height)
+	    old_pos = last_old_pos + c->height;
+	  else
+	    old_pos = last_old_pos + c->width;
+
+	  pos = (((old_pos * new_size) << 1) + old_size) / div_val;
+	  set_size (c, pos + first - last_pos, 1, set_height);
+	  last_pos = pos + first;
+	  last_old_pos = old_pos;
+	}
+
+      if (!nodelete)
+	for (c = w->child; c != Qnil; c = c->next)
+	  use (c);
+    }
+}
+