[Bug rtl-optimization/46391] false dependencies are computed after vectorization (#2)

["roy.1rosen at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46391

--- Comment #2 from Roy Rosen <roy.1rosen at gmail dot com> 2010-11-09 13:48:15 UTC ---
Seems to me that also on ia64 it is there but the dependecies are still wrong:

;; Function nor (nor)

nor (char * restrict c, char * restrict d)
{
  long unsigned int D.2085;
  long unsigned int D.2086;
  vector(8) char * restrict D.2087;
  void * D.2084;
  long unsigned int ivtmp?52;
  void * D.2071;
  void * D.2070;
  long unsigned int ivtmp?41;
  long unsigned int ivtmp?38;
  vector(8) char vect_var_?25;
  long int andmask?20;
  long int orptrs1?19;
  long int addr2int1?18;
  long int addr2int0?14;
  int i;
  char D.2021;

<bb 2>:
  addr2int0?14_22 = (long int) c_8(D);
  addr2int1?18_24 = (long int) d_5(D);
  orptrs1?19_25 = addr2int1?18_24 | addr2int0?14_22;
  andmask?20_26 = orptrs1?19_25 & 7;
  if (andmask?20_26 == 0)
    goto <bb 3>;
  else
    goto <bb 5>;

<bb 3>:
  ivtmp?52_37 = (long unsigned int) c_8(D);
  D.2085_32 = (long unsigned int) d_5(D);
  D.2086_48 = D.2085_32 + 256;
  D.2087_49 = (vector(8) char * restrict) D.2086_48;

<bb 4>:
  # PT = nonlocal { PARM_RESTRICT?1 } (restr)
  # ALIGN = 8, MISALIGN = 0
  # d_43 = PHI <d_44(4), d_5(D)(3)>
  # ivtmp?52_31 = PHI <ivtmp?52_30(4), ivtmp?52_37(3)>
  # PT = nonlocal { PARM_RESTRICT?0 } (restr)
  # ALIGN = 8, MISALIGN = 0
  D.2084_33 = (void *) ivtmp?52_31;
  vect_var_?25_41 = MEM[(char *)D.2084_33];
  ivtmp?52_30 = ivtmp?52_31 + 8;
  MEM[(char *)d_43] = vect_var_?25_41;
  # PT = nonlocal { PARM_RESTRICT?1 } (restr)
  d_44 = d_43 + 8;
  if (d_44 != D.2087_49)
    goto <bb 4>;
  else
    goto <bb 7>;

<bb 5>:
  ivtmp?38_4 = (long unsigned int) c_8(D);
  ivtmp?41_10 = (long unsigned int) d_5(D);

<bb 6>:
  # i_28 = PHI <0(5), i_36(6)>
  # ivtmp?38_19 = PHI <ivtmp?38_4(5), ivtmp?38_17(6)>
  # ivtmp?41_6 = PHI <ivtmp?41_10(5), ivtmp?41_9(6)>
  # PT = nonlocal { PARM_RESTRICT?0 } (restr)
  D.2070_11 = (void *) ivtmp?38_19;
  D.2021_34 = MEM[(char *)D.2070_11];
  ivtmp?38_17 = ivtmp?38_19 + 1;
  # PT = nonlocal { PARM_RESTRICT?1 } (restr)
  D.2071_13 = (void *) ivtmp?41_6;
  MEM[(char *)D.2071_13] = D.2021_34;
  ivtmp?41_9 = ivtmp?41_6 + 1;
  i_36 = i_28 + 1;
  if (i_36 != 256)
    goto <bb 6>;
  else
    goto <bb 7>;

<bb 7>:
  return 0;

}