1 files changed, 25 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/Warray-bounds-10.c b/gcc-4.9/gcc/testsuite/gcc.dg/Warray-bounds-10.c
new file mode 100644
index 000000000..5fd6e6f1a
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/Warray-bounds-10.c
@@ -0,0 +1,25 @@
+/* { dg-do compile } */
+/* { dg-options "-O3 -Warray-bounds" } */
+
+int f(unsigned len, int buflen)
+{
+  unsigned taillen;
+  unsigned slen;
+  unsigned i;
+  int b[17];            /* needed <= 17 to trigger Warning */
+  int j = 0;            /* needed to trigger Warning */
+
+  b[0] = 0;
+  taillen= buflen & 7;    /* taillen [0..7] */
+
+  if(taillen) {        /* taillen [1..7] */
+      slen= 8 - taillen;    /* slen    [7..1] */
+      if (len<slen)        /* needed to trigger Warning  */
+	slen=len;        /* slen' < slen  */
+      for(i=0; i<slen; i++) {
+	  j = b[taillen];    /* taillen + slen = [1..7] + [7..1] = 8 */
+	  taillen++;
+      }
+  }
+  return j;
+}