gcc/testsuite/gcc.dg/tree-ssa/pr17598.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fdump-tree-gimple" } */
   3
   4 struct f
   5 {
   6   int i;
   7   int j;
   8 };
   9
  10 struct g
  11 {
  12   int i;
  13   struct f j;
  14   struct f *k;
  15 };
  16
  17 int foo(struct f *x, struct f *y)
  18 {
  19   return &x->j == &y->j; /* x == y */
  20 }
  21
  22 struct f y;
  23 int bar(struct f *x)
  24 {
  25   return &x->j == &y.j; /* x == &y */
  26 }
  27
  28 struct g yy;
  29 int foobar(struct g *x)
  30 {
  31   return &x->j.i == &yy.j.i; /* x == &yy */
  32 }
  33 int foobar2(struct g *x)
  34 {
  35   return &x->k->i == &yy.k->i; /* x->k == yy.k */
  36 }
  37
  38 /* { dg-final { scan-tree-dump-times "x == y" 1 "gimple" } } */
  39 /* { dg-final { scan-tree-dump-times "x == &y" 2 "gimple" } } */
  40 /* { dg-final { scan-tree-dump "x->k" "gimple" } } */
  41 /* { dg-final { scan-tree-dump "yy.k" "gimple" } } */
  42 /* { dg-final { cleanup-tree-dump "gimple" } } */