gcc/testsuite/gcc.dg/guality/pr54519-2.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 __attribute__((noinline, noclone)) int
  28 fn3 (int x, int y)
  29 {
  30   return fn2 (x, y) + y;
  31 }
  32
  33 __attribute__((noinline, noclone)) int
  34 fn4 (int x, int y)
  35 {
  36   return fn2 (x, y) + y;
  37 }
  38
  39 int
  40 main ()
  41 {
  42   fn3 (6, 25);
  43   fn4 (4, 117);
  44   return 0;
  45 }