1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr28935.c b/gcc/testsuite/gcc.dg/pr28935.c
new file mode 100644
index 000000000..9a0e70ecf
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr28935.c
@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+/* { dg-options "-O3 -ftree-vectorize" } */
+
+int col[8];
+int extend_options(int w, int h, int *map, int x, int y, int index)
+{
+  int dx, dy;
+  for (dx = -1; dx <= +1; dx++)
+    {
+      int index = (dy < 0 ? 6-dx : dy > 0 ? 2+dx : 2*(1+dx));
+      if (x+dx >= 0 && x+dx < w && y+dy >= 0 && y+dy < h)
+        col[index] = map[(y+dy)*w+(x+dx)];
+      col[index] = -1;
+    }
+}