| /* { dg-do compile } */ | |
| /* { dg-options "-O2 -ftree-loop-linear" } */ | |
| /* { dg-require-effective-target size32plus } */ | |
| int foo() | |
| { | |
| int x[2][2], y[2]; | |
| int i, n, s; | |
| /* This is a reduction: there is a scalar dependence that cannot be | |
| removed by rewriting IVs. This code cannot and should not be | |
| transformed into a perfect loop. */ | |
| for (n = 0; n < 2; n++) | |
| { | |
| s = 0; | |
| for (i = 0; i < 2; i++) | |
| s += x[n][i]*y[i]; | |
| s += 1; | |
| } | |
| return s; | |
| } |