1 files changed, 12 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr54321.c b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr54321.c
new file mode 100644
index 000000000..13adc78d3
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.c-torture/compile/pr54321.c
@@ -0,0 +1,12 @@
+/* PR tree-optimization/54321 */
+struct S { char s[0]; } *a;
+
+void
+foo (void)
+{
+  char *b = a->s;
+  int c = 0;
+  b[0] = 0;
+  while (++c < 9)
+    b[c] = 255;
+}