gcc/testsuite/gcc.c-torture/compile/pr59386.c

   1 /* PR tree-optimization/59386 */
   2
   3 struct S { int s; };
   4 struct T { int t; struct S u; } c;
   5 int b;
   6
   7 struct S
   8 foo ()
   9 {
  10   struct T d;
  11   if (b)
  12     while (c.t)
  13       ;
  14   else
  15     return d.u;
  16 }
  17
  18 struct S
  19 bar ()
  20 {
  21   struct T a;
  22   a.u = foo ();
  23   return a.u;
  24 }