1 /* Straight-line strength reduction control flow variation with incr = -1.  */
2 
3 /* { dg-do compile } */
4 /* { dg-options "-O3 -fdump-tree-optimized" } */
5 
6 int
f(int n,int c,int s)7 f (int n, int c, int s)
8 {
9   int a1, a2, a3, a4, x1, x2, x3, x4;
10 
11   a1 = 4 * s;
12   x1 = c + a1;
13   x2 = x3 = x4 = c;
14 
15   if (n > 64)
16     {
17       a2 = 3 * s;
18       x2 = c + a2;
19       a3 = 2 * s;
20       x3 = c + a3;
21     }
22   else
23     {
24       a4 = 3 * s;
25       x4 = c + a4;
26     }
27 
28   return x1 + x2 + x3 + x4;
29 }
30 
31 /* { dg-final { scan-tree-dump-times " \\* " 1 "optimized" } } */
32