[Bug tree-optimization/109771] Unnecessary pblendw for vectorized or

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109771

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|rtl-optimization            |tree-optimization

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---

  vect_y_w_0_5.51_14 = MEM <vector(2) long unsigned int> [(void *)t_4(D)];
  vect_y_w_0_5.52_10 = MEM <vector(2) long unsigned int> [(void *)t_4(D) +
16B];
  vect_y_w_0_5.54_24 = MEM <vector(2) long unsigned int> [(void *)t_4(D) +
48B];
  vect_y_w_0_5.55_6 = VEC_PERM_EXPR <vect_y_w_0_5.52_10, vect_y_w_0_5.54_24, {
0, 3 }>;
  vect_x_w_0_36.60_44 = MEM <vector(2) long unsigned int> [(void *)t_4(D) +
32B];
  vect_y_w_0_5.62_21 = VEC_PERM_EXPR <vect_y_w_0_5.54_24, vect_y_w_0_5.52_10, {
0, 3 }>;
  vect__25.63_20 = vect_y_w_0_5.51_14 | vect_x_w_0_36.60_44;
  vect__25.63_19 = vect_y_w_0_5.55_6 | vect_y_w_0_5.62_21;
  MEM <vector(2) long unsigned int> [(long unsigned int *)t_4(D) + 32B] =
vect__25.63_20;
  MEM <vector(2) long unsigned int> [(long unsigned int *)t_4(D) + 48B] =
vect__25.63_19;



vs
  vect_y_w_0_10.25_44 = MEM <vector(2) long unsigned int> [(long unsigned int
*)t_2(D)];
  vect_y_w_0_10.26_46 = MEM <vector(2) long unsigned int> [(long unsigned int
*)t_2(D) + 16B];
  x = MEM[(const struct u256 &)t_2(D) + 32];
  vect__6.14_9 = MEM <vector(2) long unsigned int> [(long unsigned int *)&x];
  vect__8.18_14 = vect__6.14_9 | vect_y_w_0_10.25_44;
  MEM <vector(2) long unsigned int> [(long unsigned int *)&z] = vect__8.18_14;
  vect__6.14_11 = MEM <vector(2) long unsigned int> [(long unsigned int *)&x +
16B];
  vect__8.18_36 = vect__6.14_11 | vect_y_w_0_10.26_46;
  MEM <vector(2) long unsigned int> [(long unsigned int *)&z + 16B] =
vect__8.18_36;
  x ={v} {CLOBBER(eol)};
  MEM[(struct u256 *)t_2(D) + 32B] = z;
  z ={v} {CLOBBER(eol)};