New test (alias problems).

From-SVN: r19594

gcc/testsuite/gcc.c-torture/execute/980506-2.c

@@ -0,0 +1,22 @@
+static void *self(void *p){ return p; }
+
+int
+f()
+{
+  struct { int i; } s, *sp;
+  int *ip = &s.i;
+
+  s.i = 1;
+  sp = self(&s);
+  
+  *ip = 0;
+  return sp->i+1;
+}
+
+main()
+{
+  if (f () != 1)
+    abort ();
+  else
+    exit (0);
+}