gcc/testsuite/gcc.c-torture/compile/pr47428.c

   1 /* PR tree-optimization/47428 */
   2 /* { dg-require-effective-target untyped_assembly } */
   3
   4 struct S
   5 {
   6   int s;
   7 } a;
   8 int b;
   9
  10 void bar (struct S);
  11
  12 int
  13 baz (int x __attribute__((unused)), int y)
  14 {
  15   int i;
  16   for (i = 0; i < 1; i = 1)
  17     for (y = 0; y < 1; y = 1);
  18   return y;
  19 }
  20
  21 void
  22 foo (void)
  23 {
  24   fn (0);
  25 }
  26
  27 int
  28 fn (const int x, int y __attribute__((unused)))
  29 {
  30   if (baz (baz (0, x), 0))
  31     return 0;
  32   else
  33     bar (a);
  34   return 0;
  35 }
  36
  37 void
  38 bar (struct S x)
  39 {
  40   for (;;)
  41     for (; x.s;)
  42       b = 0 ? : baz (0, 0);
  43 }