| /* { dg-do compile } */ |
| /* { dg-options "-Ofast -fdump-tree-optimized-raw" } */ |
| |
| /* Don't expect any of these divisions to be extracted. */ |
| double f (double x, int p) |
| { |
| if (p > 0) |
| { |
| return 1.0/(x * x); |
| } |
| |
| if (p > -1) |
| { |
| return x * x * x; |
| } |
| return 1.0 /(x); |
| } |
| |
| /* Expect a reciprocal to be extracted here. */ |
| double g (double *a, double x, double y) |
| { |
| *a = 3 / y; |
| double k = x / (y * y); |
| |
| if (y * y == 2.0) |
| return k + 1 / y; |
| else |
| return k - 1 / y; |
| } |
| |
| /* Expect 2 divisions in 'f' and 1 in 'g'. */ |
| /* { dg-final { scan-tree-dump-times "rdiv_expr" 3 "optimized" } } */ |
| /* Expect 3 multiplications in 'f' and 4 in 'g'. */ |
| /* { dg-final { scan-tree-dump-times "mult_expr" 7 "optimized" } } */ |
