blob: 9e16e0476cdec6f23b190fb0658dd83e5c17fb53 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
/* Verify straight-line strength reduction for multiply candidates
with variable stride and control flow, increment = -1. */
/* { dg-do compile } */
/* { dg-options "-O3 -fdump-tree-optimized" } */
int
f (int n, int x, int stride)
{
int a, x1, x2, x3;
a = x * stride;
if (n > 64)
{
x1 = x - 1;
a += x1 * stride;
x2 = x1 - 1;
a += x2 * stride;
}
else
{
x3 = x - 1;
a += x3 * stride;
}
return a;
}
/* { dg-final { scan-tree-dump-times " \\* " 1 "optimized" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */
|
