| /* { dg-do run } */ |
| /* { dg-require-effective-target p8vector_hw } */ |
| /* { dg-options "-mdejagnu-cpu=power8 -O3" } */ |
| |
| #include <altivec.h> |
| void abort (); |
| |
| #define N 4096 |
| int ca[N] __attribute__((aligned(16))); |
| int cb[N] __attribute__((aligned(16))); |
| int cc[N] __attribute__((aligned(16))); |
| int cd[N] __attribute__((aligned(16))); |
| int hey; |
| |
| __attribute__((noinline)) void foo () |
| { |
| int i; |
| vector int va, vb, vc, vd, tmp; |
| vector unsigned int threes = vec_splat_u32(3); |
| for (i = 0; i < N; i+=4) { |
| vb = vec_vsx_ld (0, &cb[i]); |
| vc = vec_vsx_ld (0, &cc[i]); |
| vd = vec_vsx_ld (0, &cd[i]); |
| tmp = vec_add (vb, vc); |
| tmp = vec_sub (tmp, vd); |
| tmp = vec_sra (tmp, threes); |
| hey = tmp[3]; |
| vec_vsx_st (tmp, 0, &ca[i]); |
| } |
| } |
| |
| __attribute__((noinline)) void init () |
| { |
| int i; |
| for (i = 0; i < N; ++i) { |
| cb[i] = 3 * i - 2048; |
| cc[i] = -5 * i + 93; |
| cd[i] = i + 14; |
| } |
| } |
| |
| int main () |
| { |
| int i; |
| init (); |
| foo (); |
| for (i = 0; i < N; ++i) |
| if (ca[i] != (-3 * i - 1969) >> 3) |
| abort (); |
| if (hey != ca[N-1]) |
| abort (); |
| return 0; |
| } |