1 /* A test for strength reduction of ivs with nonconstant step. */
3 /* { dg-do compile } */
4 /* { dg-options "-O1 -fdump-tree-optimized" } */
12 int iter, step = bar ();
14 for (iter = 0; iter < 10; iter++)
15 a[iter * step] = bar ();
18 /* The array access should be strength reduced. But to determine the value of
19 the step, we need to calculate step * sizeof (int), thus we need to be
20 a bit careful about which multiplications we disallow. */
22 /* { dg-final { scan-tree-dump-times "step \\* \[^0-9\]" 0 "optimized" } } */
23 /* { dg-final { scan-tree-dump-times "\[^0-9\] \\* step" 0 "optimized" } } */
25 /* { dg-final { cleanup-tree-dump "optimized" } } */