| /* Verify straight-line strength reduction for multiply candidates |
| with variable stride and control flow. */ |
| |
| /* { 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 + 3; |
| a += x1 * stride; |
| x2 = x1 + 3; |
| a += x2 * stride; |
| } |
| else |
| { |
| x3 = x + 3; |
| a += x3 * stride; |
| } |
| |
| return a; |
| } |
| |
| /* { dg-final { scan-tree-dump-times " \\* stride" 1 "optimized" } } */ |
| /* { dg-final { scan-tree-dump-times " \\* 3" 1 "optimized" } } */ |
