gcc/testsuite/gcc.dg/sms-1.c

   1 /* The same test as loop-3c.c.  It failed on ia64
   2    due to not handling of subreg in the lhs that is fixed.  */
   3 /* { dg-do run } */
   4 /* { dg-options "-O2 -fmodulo-sched -fmodulo-sched-allow-regmoves -w" } */
   5
   6
   7 #include <limits.h>
   8
   9 void * a[255];
  10
  11 f (m)
  12 {
  13   int i;
  14   int sh = 0x100;
  15   i = m;
  16   do
  17     {
  18       a[sh >>= 1] = ((unsigned)i << 3)  + (char*)a;
  19       i += 4;
  20     }
  21   while (i < INT_MAX/2 + 1 + 4 * 4);
  22 }
  23
  24 main ()
  25 {
  26   a[0x10] = 0;
  27   a[0x08] = 0;
  28   f (INT_MAX/2 + INT_MAX/4 + 2);
  29   if (a[0x10] || a[0x08])
  30     abort ();
  31   a[0x10] = 0;
  32   a[0x08] = 0;
  33   f (INT_MAX/2 + 1);
  34   if (! a[0x10] || a[0x08])
  35     abort ();
  36   exit (0);
  37 }
  38