1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/alias-16.c b/gcc/testsuite/gcc.dg/tree-ssa/alias-16.c
new file mode 100644
index 00000000000..cf10fa913ce
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/alias-16.c
@@ -0,0 +1,33 @@
+/* { dg-do run } */
+/* { dg-options "-O --param max-aliased-vops=1" } */
+
+/* Compile with -O --param max-aliased-vops=1.  This partitions all
+   the initial SFTs for 'm' which was causing the operand scanner to
+   miss adding the right SFTs to p->b[2].  */
+extern void abort (void);
+
+struct X {
+    int a;
+    struct Y {
+	int b[4];
+    } b;
+    struct Y c;
+} m;
+
+struct X n;
+
+foo (int i)
+{
+  struct Y *p = (i > 10) ? &m.b : &n.c;
+  p->b[2] = 10;
+  m.b.b[3] = 6;
+  n.c.b[2] = 3;
+  return p->b[2] + n.c.b[2] + m.b.b[3];
+}
+
+main()
+{
+  if (foo (3) != 12)
+    abort ();
+  return 0;
+}