gcc/testsuite/gcc.dg/pr44485.c

   1 /* PR tree-optimization/44485 */
   2 /* { dg-do compile } */
   3 /* { dg-options "-O1 -funsafe-math-optimizations" } */
   4
   5 unsigned short b;
   6 int bar (unsigned);
   7
   8 void
   9 baz (void)
  10 {
  11   if (bar (0))
  12     for (b = 0; b < 30; b++)
  13       ;
  14 }
  15
  16 int
  17 bar (unsigned z)
  18 {
  19   unsigned short c;
  20   for (; ; z += 1)
  21 l1:
  22     if (z)
  23       goto l2;
  24 l2:
  25   for (z = 0; z < 9; z++)
  26     if (z)
  27       goto l1;
  28   for (c = 0; c; c = (__UINTPTR_TYPE__) baz)
  29     ;
  30   return 0;
  31 }