1 files changed, 12 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/pr53550.c b/gcc-4.9/gcc/testsuite/gcc.dg/pr53550.c
new file mode 100644
index 000000000..1008f43a7
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/pr53550.c
@@ -0,0 +1,12 @@
+/* PR tree-optimization/53550 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fprefetch-loop-arrays -w" } */
+
+int *
+foo (int *x)
+{
+  int *a = x + 10, *b = x, *c = a;
+  while (b != c)
+    *--c = *b++;
+  return x;
+}