| /* Verify straight-line strength reduction for simple integer subtraction. */ | |
| /* { dg-do compile } */ | |
| /* { dg-options "-O3 -fdump-tree-optimized" } */ | |
| int | |
| f (int s, int c) | |
| { | |
| int a1, a2, a3, x1, x2, x3, x; | |
| a1 = 2 * s; | |
| x1 = c - a1; | |
| a2 = 4 * s; | |
| x2 = c - a2; | |
| a3 = 6 * s; | |
| x3 = c - a3; | |
| x = x1 + x2 + x3; | |
| return x; | |
| } | |
| /* { dg-final { scan-tree-dump-times " \\* " 1 "optimized" } } */ |