gcc/testsuite/gcc.dg/torture/pr78482.c

   1 /* PR tree-optimization/78482 */
   2 /* { dg-do run } */
   3
   4 short a = 65531;
   5 int b = 3, f;
   6 signed char c, d;
   7 static void fn1(int p1)
   8 {
   9   short e;
  10   b = f;
  11   if (f > p1 && p1)
  12     L:
  13         for (e = 0; 0;)
  14           ;
  15   else if (d) b = 0 >= b;
  16   for (; e <= 3; e++)
  17     {
  18       if (b)
  19         continue;
  20       b = 3;
  21       goto L;
  22     }
  23 }
  24
  25 __attribute__((noinline, noclone))
  26 int bar (const char *x, int y)
  27 {
  28   asm volatile ("" : "+g" (x), "+g" (y) : : "memory");
  29   if (y == 2)
  30     __builtin_abort ();
  31   return 0;
  32 }
  33
  34 int main()
  35 {
  36   for (; c >= 0; c--)
  37     {
  38       if (!b)
  39         {
  40           bar("%d\n", 2);
  41           continue;
  42         }
  43       fn1(a);
  44     }
  45   return 0;
  46 }