1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/960521-1.c b/gcc/testsuite/gcc.c-torture/execute/960521-1.c
new file mode 100644
index 000000000..9fc582149
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/960521-1.c
@@ -0,0 +1,30 @@
+#include <stdlib.h>
+
+int *a, *b;
+int n;
+
+#ifdef STACK_SIZE
+#define BLOCK_SIZE (STACK_SIZE / (sizeof (*a) + sizeof (*b)))
+#else
+#define BLOCK_SIZE 32768
+#endif
+foo ()
+{
+  int i;
+  for (i = 0; i < n; i++)
+    a[i] = -1;
+  for (i = 0; i < BLOCK_SIZE - 1; i++)
+    b[i] = -1;
+}
+
+main ()
+{
+  n = BLOCK_SIZE;
+  a = malloc (n * sizeof(*a));
+  b = malloc (n * sizeof(*b));
+  *b++ = 0;
+  foo ();
+  if (b[-1])
+    abort ();
+  exit (0);
+}