gcc/testsuite/gcc.dg/tree-ssa/ldist-30.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -ftree-loop-distribution -ftree-loop-distribute-patterns -fdump-tree-ldist-details" } */
   3
   4 #define M (256)
   5 #define N (512)
   6 int a[M][N], b[M][N];
   7
   8 void
   9 foo (void)
  10 {
  11   for (unsigned i = 0; i < M; ++i)
  12     for (unsigned j = N; j > 0; --j)
  13       a[i][j - 1] = b[i][j - 1];
  14 }
  15
  16 /* { dg-final { scan-tree-dump-times "Loop nest . distributed: split to" 1 "ldist" } } */