| /* { dg-do compile } */ |
| /* { dg-additional-options "-fno-tree-loop-vectorize" } */ |
| |
| extern int a[][4], b[][4], c[][4], d[4], e[4]; |
| void f() |
| { |
| int t0 = a[0][3]; |
| int t1 = a[1][3]; |
| int t2 = a[2][3]; |
| int t3 = a[3][3]; |
| int a0 = 0, a1 = 0, a2 = 0, a3 = 0, b0 = 0, b1 = 0, b2 = 0, b3 = 0; |
| for (int j = 0; j < 100; ++j) |
| for (int i = 0; i < 400; i += 4) |
| { |
| a0 += b[i][3] * t0; |
| a1 += b[i][2] * t1; |
| a2 += b[i][1] * t2; |
| a3 += b[i][0] * t3; |
| b0 += c[i][3] * t0; |
| b1 += c[i][2] * t1; |
| b2 += c[i][1] * t2; |
| b3 += c[i][0] * t3; |
| } |
| d[0] = a0; |
| d[1] = a1; |
| d[2] = a2; |
| d[3] = a3; |
| e[0] = b0; |
| e[1] = b1; |
| e[2] = b2; |
| e[3] = b3; |
| } |
| |
| /* { dg-final { scan-tree-dump-times "add new stmt: \[^\\n\\r\]* = VEC_PERM_EXPR" 3 "slp1" { target { vect_int_mult && vect_perm } } } } */ |
