1 /* Verify straight-line strength reduction for a candidate with a basis
2 hidden by a phi dependence and having an unknown stride. */
3
4 /* { dg-do compile } */
5 /* { dg-options "-O3 -fdump-tree-optimized" } */
6
7 int
f(int s,int c,int i)8 f (int s, int c, int i)
9 {
10 int a1, a2, a3, x1, x2, x3, x;
11
12 a1 = i * s;
13 x1 = c + a1;
14
15 i = i + 2;
16 a2 = i * s;
17 x2 = c + a2;
18
19 if (x2 > 6)
20 i = i + 2;
21
22 i = i + 2;
23 a3 = i * s;
24 x3 = c + a3;
25
26 x = x1 + x2 + x3;
27 return x;
28 }
29
30 /* { dg-final { scan-tree-dump-times " \\* s" 1 "optimized" } } */
31 /* { dg-final { scan-tree-dump-times " \\* 2" 1 "optimized" } } */
32