1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/Wstrict-overflow-23.c b/gcc/testsuite/gcc.dg/Wstrict-overflow-23.c
new file mode 100644
index 000000000..16014bb15
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/Wstrict-overflow-23.c
@@ -0,0 +1,31 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -Wstrict-overflow" } */
+
+unsigned int
+do_scrolling (unsigned int window_size, unsigned int writecost)
+{
+  unsigned int i = window_size;
+
+  int terminal_window_p = 0;
+  unsigned int queue = 0;
+
+  for (i = window_size; i; i--)
+    {
+      if (writecost < i)
+    ++queue;
+      else if (writecost & 1)
+    terminal_window_p = 1;
+    }
+
+  if (queue > 0)
+    {
+      if (!terminal_window_p)
+    {
+      terminal_window_p = 1;
+    }
+    }
+
+  if (terminal_window_p)
+    return 100;
+  return 0;
+}