/* { dg-require-effective-target vect_float } */ #include #include "tree-vect.h" #define N 40 float image[N][N+1] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); float out[N]; /* Outer-loop vectorization. */ __attribute__ ((noinline)) void foo (){ int i,j; float diff; for (i = 0; i < N; i++) { diff = 0; for (j = 0; j < N; j+=4) { diff += image[j][i]; } out[i]=diff; } } int main (void) { check_vect (); int i, j; float diff; for (i = 0; i < N; i++) { for (j = 0; j < N; j++) { image[i][j]=i+j; } } foo (); for (i = 0; i < N; i++) { diff = 0; for (j = 0; j < N; j+=4) { diff += image[j][i]; } if (out[i] != diff) abort (); } return 0; } /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" } } */ /* { dg-final { cleanup-tree-dump "vect" } } */