| /* Verify straight-line strength reduction for a candidate with a basis |
| hidden by two phi dependences, and having a known stride. */ |
| |
| /* { dg-do compile } */ |
| /* { dg-options "-O3 -fdump-tree-optimized" } */ |
| |
| extern void |
| g (void); |
| |
| int |
| f (int c, int i) |
| { |
| int a1, a2, a3, x1, x2, x3, x; |
| |
| a1 = i * 16; |
| x1 = c + a1; |
| |
| i = i + 2; |
| a2 = i * 16; |
| x2 = c + a2; |
| |
| if (x2 > 6) |
| { |
| if (c < 200) |
| i = i + 2; |
| else |
| i = i + 4; |
| g (); |
| } |
| else |
| i = i + 6; |
| |
| i = i + 2; |
| a3 = i * 16; |
| x3 = c + a3; |
| |
| x = x1 + x2 + x3; |
| return x; |
| } |
| |
| /* { dg-final { scan-tree-dump-times " \\* " 1 "optimized" } } */ |
| /* { dg-final { scan-tree-dump-times "PHI" 2 "optimized" } } */ |
