gcc/testsuite/gcc.dg/tree-ssa/ltrans-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ftree-loop-linear -fdump-tree-ltrans-all" } */
   3
   4 double u[1782225];
   5 int foo(int N, int *res)
   6 {
   7   int i, j;
   8   double sum = 0;
   9   for (i = 0; i < N; i++)
  10     for (j = 0; j < N; j++)
  11       sum = sum + u[i + 1335 * j];
  12
  13   for (i = 0; i < N; i++)
  14     u[1336 * i] *= 2;
  15   *res = sum + N;
  16 }
  17
  18 /* { dg-final { scan-tree-dump-times "transformed loop" 1 "ltrans"} } */
  19 /* { dg-final { cleanup-tree-dump "ltrans" } } */