/* { dg-do run { target avx_runtime } } */ /* { dg-require-effective-target avx } */ /* { dg-options "-O3 -mavx -fdump-tree-slp2" } */ float x[8], y[8], z[8]; void __attribute__((noipa)) foo () { x[0] = y[0] - z[0]; x[1] = y[1] + z[1]; x[2] = y[2] - z[2]; x[3] = y[3] + z[3]; x[4] = y[4] - z[4]; x[5] = y[5] + z[5]; x[6] = y[6] - z[6]; x[7] = y[7] + z[7]; } void __attribute__((noipa)) bar () { x[0] = y[0] + z[0]; x[1] = y[1] - z[1]; x[2] = y[2] + z[2]; x[3] = y[3] - z[3]; x[4] = y[4] + z[4]; x[5] = y[5] - z[5]; x[6] = y[6] + z[6]; x[7] = y[7] - z[7]; } int main() { for (int i = 0; i < 8; ++i) { y[i] = i + 1; z[i] = 2 * i + 1; } foo (); if (x[0] != 0 || x[1] != 5 || x[2] != -2 || x[3] != 11 || x[4] != -4 || x[5] != 17 || x[6] != -6 || x[7] != 23) __builtin_abort (); bar (); if (x[0] != 2 || x[1] != -1 || x[2] != 8 || x[3] != -3 || x[4] != 14 || x[5] != -5 || x[6] != 20 || x[7] != -7) __builtin_abort (); return 0; } /* { dg-final { scan-tree-dump-times "ADDSUB" 1 "slp2" } } */