gcc/testsuite/gcc.dg/guality/pr54519-4.c

   1 /* PR debug/54519 */
   2 /* { dg-do run } */
   3 /* { dg-options "-g" } */
   4
   5 __attribute__((noinline, noclone)) void
   6 fn1 (int x)
   7 {
   8   __asm volatile ("" : "+r" (x) : : "memory");
   9 }
  10
  11 static int
  12 fn2 (int x, int y)
  13 {
  14   if (y)
  15     {
  16       fn1 (x);          /* { dg-final { gdb-test 17 "x" "6" } } */
  17       fn1 (x);          /* { dg-final { gdb-test 17 "y" "25" } } */
  18       fn1 (x);
  19       fn1 (x);
  20       y = -2 + x;
  21       y = y * y * y + y;
  22       fn1 (x + y);      /* { dg-final { gdb-test 22 "y" "68" } } */
  23     }
  24   return x;
  25 }
  26
  27 int (*p) (int, int) = fn2;
  28
  29 int
  30 main ()
  31 {
  32   __asm volatile ("" : : : "memory");
  33   int (*q) (int, int) = p;
  34   __asm volatile ("" : : : "memory");
  35   q (6, 25);
  36   q (4, 117);
  37   q (0, 0);
  38   return 0;
  39 }