[Bug tree-optimization/89653] Missing vectorization of loop containing std::min/std::max and temporary

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89653

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2019-03-11
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot 
gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
The issue is D.17094 appearantly introduced by the recip pass.

  <bb 5> [local count: 955630224]:
  # i_20 = PHI <i_16(8), 0(15)>
  _1 = (long unsigned int) i_20;
  _2 = _1 * 8;
  _3 = vec_11(D) + _2;
  _4 = *_3;
  _5 = reciptmp_8 * _4;
  D.17094 = _5;
  prephitmp_29 = MIN_EXPR <_4, _5>;
  *_3 = prephitmp_29;
  D.17094 ={v} {CLOBBER};
  i_16 = i_20 + 1;
  if (end_10(D) <= i_16)