| /* { dg-do compile } */ | |
| /* { dg-options "-O2 -ftree-loop-vectorize -fdump-tree-pcom-details -fdisable-tree-vect" } */ | |
| extern double arr[100]; | |
| extern double foo (double, double); | |
| extern double sum; | |
| void | |
| test (int i_0, int i_n) | |
| { | |
| int i; | |
| for (i = i_0; i < i_n - 1; i++) | |
| { | |
| double a = arr[i]; | |
| double b = arr[i + 1]; | |
| sum += a * b; | |
| } | |
| } | |
| /* { dg-final { scan-tree-dump "Executing predictive commoning without unrolling" "pcom" } } */ |