1  /* { dg-do compile } */
       2  /* { dg-require-effective-target vect_int } */
       3  /* { dg-require-effective-target powerpc_altivec_ok { target { powerpc*-*-* } } } */
       4  /* { dg-require-effective-target sse2 { target { i?86-*-* x86_64-*-* } } } */
       5  /* { dg-options "-O2 -ffast-math -fdump-tree-reassoc1" } */
       6  /* { dg-additional-options "-maltivec" { target { powerpc*-*-* } } } */
       7  /* { dg-additional-options "-msse2" { target { i?86-*-* x86_64-*-* } } } */
       8  
       9  /* To test reassoc can undistribute vector bit_field_ref on bitwise XOR.
      10  
      11     v1, v2, v3, v4 of type vector int.
      12  
      13     reassoc transforms
      14  
      15       accumulator ^= v1[0] ^ v1[1] ^ v1[2] ^ v1[3] ^
      16                      v2[0] ^ v2[1] ^ v2[2] ^ v2[3] ^
      17                      v3[0] ^ v3[1] ^ v3[2] ^ v3[3] ^
      18                      v4[0] ^ v4[1] ^ v4[2] ^ v4[3] ;
      19  
      20     into:
      21  
      22       T = v1 ^ v2 ^ v3 ^ v4;
      23       accumulator ^= T[0] ^ T[1] ^ T[2] ^ T[3];
      24  
      25     Fewer bit_field_refs, only four for 128 or more bits vector.  */
      26  
      27  typedef int v4si __attribute__ ((vector_size (16)));
      28  int
      29  test (int accumulator, v4si v1, v4si v2, v4si v3, v4si v4)
      30  {
      31    accumulator ^= v1[0] ^ v1[1] ^ v1[2] ^ v1[3];
      32    accumulator ^= v2[0] ^ v2[1] ^ v2[2] ^ v2[3];
      33    accumulator ^= v3[0] ^ v3[1] ^ v3[2] ^ v3[3];
      34    accumulator ^= v4[0] ^ v4[1] ^ v4[2] ^ v4[3];
      35    return accumulator;
      36  }
      37  /* { dg-final { scan-tree-dump-times "BIT_FIELD_REF" 4 "reassoc1" { target { powerpc*-*-* i?86-*-* x86_64-*-* } } } } */