gcc/testsuite/gcc.target/arm/pr58578.c

   1
   2 /* PR target/58578 */
   3 /* { dg-do run } */
   4 /* { dg-options "-O1" } */
   5
   6 #include <stdlib.h>
   7
   8 typedef struct {
   9     long _prec;
  10     int _flag;
  11     long _exp;
  12 } __my_st_t;
  13
  14 typedef __my_st_t *__my_st_ptr;
  15
  16 int
  17 _test_fn (__my_st_ptr y, const __my_st_ptr xt)
  18 {
  19   int inexact;
  20   if (xt->_exp != -2147483647L)
  21     {
  22       (y->_flag = xt->_flag);
  23     }
  24
  25   do {
  26       __my_st_ptr _y = y;
  27       long _err1 = -2 * xt->_exp;
  28       long _err2 = 2;
  29       if (0 < _err1)
  30         {
  31           unsigned long _err = (unsigned long) _err1 + _err2;
  32           if (__builtin_expect(!!(_err > _y->_prec + 1), 0))
  33             return 2;
  34           return 3;
  35         }
  36   } while (0);
  37
  38   return 0;
  39 }
  40
  41 int main ()
  42 {
  43   __my_st_t x, y;
  44   long pz;
  45   int inex;
  46
  47   x._prec = 914;
  48   y._exp = 18;
  49   if (_test_fn (&x, &y))
  50     {
  51       abort();
  52     }
  53   return 0;
  54 }