| /* { dg-require-effective-target vect_int } */ |
| |
| #include "tree-vect.h" |
| |
| #define N 50 |
| |
| #ifndef SIGNEDNESS |
| #define SIGNEDNESS unsigned |
| #endif |
| #ifndef BIAS |
| #define BIAS 0 |
| #endif |
| |
| void __attribute__ ((noipa)) |
| f (SIGNEDNESS char *restrict a, SIGNEDNESS char *restrict b, |
| SIGNEDNESS char *restrict c) |
| { |
| for (__INTPTR_TYPE__ i = 0; i < N; ++i) |
| a[i] = (b[i] + c[i] + BIAS) >> 1; |
| } |
| |
| #define BASE1 ((SIGNEDNESS int) -1 < 0 ? -126 : 4) |
| #define BASE2 ((SIGNEDNESS int) -1 < 0 ? -101 : 26) |
| |
| int |
| main (void) |
| { |
| check_vect (); |
| |
| SIGNEDNESS char a[N], b[N], c[N]; |
| for (int i = 0; i < N; ++i) |
| { |
| b[i] = BASE1 + i * 5; |
| c[i] = BASE2 + i * 4; |
| asm volatile ("" ::: "memory"); |
| } |
| f (a, b, c); |
| for (int i = 0; i < N; ++i) |
| if (a[i] != ((BASE1 + BASE2 + i * 9 + BIAS) >> 1)) |
| __builtin_abort (); |
| return 0; |
| } |
| |
| /* { dg-final { scan-tree-dump "vect_recog_average_pattern: detected" "vect" } } */ |
| /* { dg-final { scan-tree-dump {\.AVG_FLOOR} "vect" { target vect_avg_qi } } } */ |
| /* { dg-final { scan-tree-dump-not {vector\([^\n]*short} "vect" { target vect_avg_qi } } } */ |
| /* { dg-final { scan-tree-dump-times "vectorized 1 loop" 1 "vect" { target vect_avg_qi } } } */ |