| /* Straight-line strength reduction control flow variation with incr = -1. */ | |
| /* { dg-do compile } */ | |
| /* { dg-options "-O3 -fdump-tree-optimized" } */ | |
| int | |
| f (int n, int c, int s) | |
| { | |
| int a1, a2, a3, a4, x1, x2, x3, x4; | |
| a1 = 4 * s; | |
| x1 = c + a1; | |
| x2 = x3 = x4 = c; | |
| if (n > 64) | |
| { | |
| a2 = 3 * s; | |
| x2 = c + a2; | |
| a3 = 2 * s; | |
| x3 = c + a3; | |
| } | |
| else | |
| { | |
| a4 = 3 * s; | |
| x4 = c + a4; | |
| } | |
| return x1 + x2 + x3 + x4; | |
| } | |
| /* { dg-final { scan-tree-dump-times " \\* " 1 "optimized" } } */ |