gcc/testsuite/gcc.target/i386/pr82628.c

   1 /* { dg-do run { target ia32 } } */
   2 /* { dg-options "-Os" } */
   3
   4 void
   5 __attribute__ ((noipa))
   6 foo (const char *x)
   7 {
   8   asm volatile ("" : "+g" (x) : : "memory");
   9   if (x)
  10     __builtin_abort ();
  11 }
  12
  13 int a, b = 1;
  14
  15 int
  16 main ()
  17 {
  18   while (1)
  19     {
  20       unsigned long long d = 18446744073709551615UL;
  21       while (1)
  22         {
  23           int e = b;
  24           while (d < 2)
  25             foo ("0");
  26           if (a)
  27             d++;
  28           if (b)
  29             break;
  30         }
  31       break;
  32     }
  33   return 0;
  34 }