1  /* { dg-do run } */
       2  /* { dg-require-effective-target avx512f_runtime } */
       3  /* { dg-options "-O2 -mavx512f -ffast-math -fdump-tree-reassoc1" } */
       4  
       5  /* To test reassoc can undistribute vector bit_field_ref on multiple
       6     vector machine modes, bypass those modes with only one candidate.
       7  
       8     v1, v2 of type vector 4 x float
       9     v3     of type vector 8 x float
      10     v5, v6 of type vector 16 x float
      11  
      12     reassoc transforms
      13  
      14       accumulator  +=  v1[0]  + v1[1]  + v1[2]  + v1[3]  +
      15                        v2[0]  + v2[1]  + v2[2]  + v2[3]  +
      16                        v3[0]  + v3[1]  + v3[2]  + v3[3]  +
      17                        v3[4]  + v3[5]  + v3[6]  + v3[7]  +
      18                        v5[0]  + v5[1]  + v5[2]  + v5[3]  +
      19                        v5[4]  + v5[5]  + v5[6]  + v5[7]  +
      20                        v5[8]  + v5[9]  + v5[10] + v5[11] +
      21                        v5[12] + v5[13] + v5[14] + v5[15] +
      22                        v6[0]  + v6[1]  + v6[2]  + v6[3]  +
      23                        v6[4]  + v6[5]  + v6[6]  + v6[7]  +
      24                        v6[8]  + v6[9]  + v6[10] + v6[11] +
      25                        v6[12] + v6[13] + v6[14] + v6[15] ;
      26  
      27     into:
      28  
      29       T12 = v1 + v2;
      30       T56 = v5 + v6;
      31       accumulator += T12[0]  + T12[1]  + T12[2]  + T12[3]  +
      32       accumulator += v3[0]   + v3[1]   + v3[2]   + v3[3]   +
      33       accumulator += v3[4]   + v3[5]   + v3[6]   + v3[7]   +
      34       accumulator += T56[0]  + T56[1]  + T56[2]  + T56[3]  +
      35       accumulator += T56[4]  + T56[5]  + T56[6]  + T56[7]  +
      36       accumulator += T56[8]  + T56[9]  + T56[10] + T56[11] +
      37       accumulator += T56[12] + T56[13] + T56[14] + T56[15] ;  */
      38  
      39  typedef float v4sf __attribute__((vector_size(16)));
      40  typedef float v8sf __attribute__((vector_size(32)));
      41  typedef float v16sf __attribute__((vector_size(64)));
      42  
      43  __attribute__ ((noinline))
      44  float test(float accumulator, v4sf v1, v4sf v2, v8sf v3, v16sf v5, v16sf v6) {
      45    accumulator += v1[0] + v1[1] + v1[2] + v1[3];
      46    accumulator += v2[0] + v2[1] + v2[2] + v2[3];
      47    accumulator += v3[0] + v3[1] + v3[2] + v3[3];
      48    accumulator += v3[4] + v3[5] + v3[6] + v3[7];
      49    accumulator += v5[0] + v5[1] + v5[2] + v5[3];
      50    accumulator += v5[4] + v5[5] + v5[6] + v5[7];
      51    accumulator += v5[8] + v5[9] + v5[10] + v5[11];
      52    accumulator += v5[12] + v5[13] + v5[14] + v5[15];
      53    accumulator += v6[0] + v6[1] + v6[2] + v6[3];
      54    accumulator += v6[4] + v6[5] + v6[6] + v6[7];
      55    accumulator += v6[8] + v6[9] + v6[10] + v6[11];
      56    accumulator += v6[12] + v6[13] + v6[14] + v6[15];
      57    return accumulator;
      58  }
      59  
      60  extern void abort (void);
      61  
      62  int
      63  main ()
      64  {
      65    v4sf v1 = {1.0, 2.0, 3.0, 4.0 };
      66    v4sf v2 = {5.0, 6.0, 7.0, 8.0 };
      67    v8sf v3 = {9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0 };
      68    v16sf v5 = {17.0, 18.0, 19.0, 20.0, 21.0, 22.0, 23.0, 24.0, 25.0, 26.0, 27.0, 28.0, 29.0, 30.0, 31.0, 32.0};
      69    v16sf v6 = {33.0, 34.0, 35.0, 36.0, 37.0, 38.0, 39.0, 40.0, 41.0, 42.0, 43.0, 44.0, 45.0, 46.0, 47.0, 48.0};
      70    float acc = 24.0;
      71    double res = test (acc, v1, v2, v3, v5, v6);
      72    if (res != 1200.0)
      73      abort();
      74    return 0;
      75  }
      76  
      77  /* { dg-final { scan-tree-dump-times "BIT_FIELD_REF" 28 "reassoc1" } } */