/* { dg-do compile } */ | |
/* { dg-options "-O2 -ftree-vectorize -ffast-math -march=knl" } */ | |
/* { dg-final { scan-assembler-times "vpermps\[ \\t\]+\[^\{\n\]*%zmm\[0-9\]+(?:\n|\[ \\t\]+#)" 1 } } */ | |
#define N 1024 | |
float f1[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); | |
float f2[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); | |
void foo () | |
{ | |
int j; | |
for (j=0; j<N; j++) | |
f1[j] += f2[N-j]; | |
} |