gcc/testsuite/gcc.dg/graphite/pr69728.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -floop-nest-optimize -fdump-tree-graphite-details" } */
   3
   4 int a[9];
   5 int b, c, d, e;
   6 void
   7 fn1 ()
   8 {
   9   d = 9;
  10   for (; c; c++)
  11     {
  12       ++d;
  13       b = 8;
  14       for (; b; b--)
  15         {
  16           if (d)
  17             break;
  18           a[b] = e;
  19         }
  20     }
  21 }
  22
  23 /* At the moment only ISL figures that if (d) is always true.  We've
  24    run into scheduling issues before here, not being able to handle
  25    empty domains.  */
  26
  27 /* { dg-final { scan-tree-dump "loop nest optimized" "graphite" } } */