| /* { dg-require-effective-target vect_int } */ |
| |
| #include <stdarg.h> |
| #include "tree-vect.h" |
| |
| #define N 16 |
| signed char data_ch[N] = |
| { 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28 }; |
| #define SUM 210 |
| |
| __attribute__ ((noinline)) int |
| foo () |
| { |
| int i; |
| signed short shortsum = 0; |
| |
| /* widenning sum: sum chars into short. |
| The widening-summation pattern is currently not detected because of this |
| patch: |
| |
| 2005-12-26 Kazu Hirata <kazu@codesourcery.com> |
| |
| PR tree-optimization/25125 |
| |
| but we still handle the reduction. |
| */ |
| |
| for (i = 0; i < N; i++) |
| { |
| shortsum += data_ch[i]; |
| } |
| |
| /* check results: */ |
| if (shortsum != SUM) |
| abort (); |
| |
| return 0; |
| } |
| |
| int |
| main (void) |
| { |
| check_vect (); |
| return foo (); |
| } |
| |
| /* { dg-final { scan-tree-dump-times "vect_recog_widen_sum_pattern: detected" 1 "vect" { xfail *-*-* } } } */ |
| /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_widen_sum_qi_to_hi } } } } */ |
