gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-102.c

   1 /* PR/111715 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O2 -fdump-tree-fre1" } */
   4
   5 struct B {
   6    struct { int len; } l;
   7    long n;
   8 };
   9 struct A {
  10    struct B elts[8];
  11 };
  12
  13 static void
  14 set_len (struct B *b, int len)
  15 {
  16   b->l.len = len;
  17 }
  18
  19 static int
  20 get_len (struct B *b)
  21 {
  22   return b->l.len;
  23 }
  24
  25 int foo (struct A *a, int i, long *q)
  26 {
  27   set_len (&a->elts[i], 1);
  28   *q = 2;
  29   return get_len (&a->elts[i]);
  30 }
  31
  32 /* { dg-final { scan-tree-dump "return 1;" "fre1" } } */