| /* { dg-require-effective-target vect_int } */ |
| |
| #include <stdarg.h> |
| #include "tree-vect.h" |
| |
| #define N 64 |
| #define SUM 0 |
| |
| /* Require widening-mult or data-unpacking (for the type promotion). */ |
| __attribute__ ((noinline)) int |
| main1 (short *in, int off, short scale, int n) |
| { |
| int i; |
| int sum = 0; |
| |
| for (i = 0; i < n; i++) { |
| sum += ((int) in[i] * (int) in[i+off]) >> scale; |
| } |
| |
| return sum; |
| } |
| |
| int main (void) |
| { |
| int i; |
| int sum; |
| short X[N]; |
| |
| check_vect (); |
| |
| for (i=0; i<N; i++) { |
| X[i] = 16-i; |
| __asm__ volatile (""); |
| } |
| |
| sum = main1 (X, 1, 16, N-1); |
| |
| if (sum != SUM) |
| abort (); |
| |
| return 0; |
| } |
| |
| |
| /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_widen_mult_hi_to_si } } } */ |
| /* { dg-final { scan-tree-dump "vect_recog_widen_mult_pattern: detected" "vect" } } */ |