gcc/testsuite/gcc.dg/torture/pr67947.c

   1 /* { dg-additional-options "-O3" } */
   2
   3 #include <stdlib.h>
   4
   5 int a;
   6 int c;
   7 __attribute__((noinline, noclone)) void foo (int x)
   8 {
   9   if (x == 0)
  10     c++;
  11 }
  12
  13 int
  14 main (int argc, char* argv[])
  15 {
  16   int j, k, b = 0;
  17   if (argc == 0)
  18     b = 1;
  19   for (j = 0; j < 3; j++)
  20     for (k = 0; k < 1; k++)
  21       {
  22         foo (0);
  23         if (b)
  24           for (k = -1; a;)
  25             ;
  26       }
  27   if (c != 3)
  28     abort ();
  29   return 0;
  30 }