| /* { dg-do compile } */ |
| /* { dg-require-effective-target vect_int } */ |
| |
| extern void abort (void); |
| |
| #define N 128 |
| |
| short a[N]; |
| short d[N]; |
| |
| int foo () |
| { |
| int i; |
| short b[N]; |
| short c[N]; |
| for (i = 0; i < N/2; i++) |
| { |
| b[i] = i*3; |
| c[i] = i; |
| asm volatile ("" ::: "memory"); |
| } |
| |
| /* Strided access pattern. */ |
| for (i = 0; i < N/2; i++) |
| { |
| a[i] = b[2*i+1] * c[2*i+1] - b[2*i] * c[2*i]; |
| d[i] = b[2*i] * c[2*i+1] + b[2*i+1] * c[2*i]; |
| } |
| |
| return 0; |
| } |
| |
| /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { xfail { ! vect_strided2 } } } } */ |
