[Bug tree-optimization/61171] vectorization fails for a reduction in presence of subtraction

[alalaw01 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61171

alalaw01 at gcc dot gnu.org changed:

           What    |Removed                     |Added
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                 CC|                            |alalaw01 at gcc dot gnu.org

--- Comment #2 from alalaw01 at gcc dot gnu.org ---
This vectorizes fine, if vv is made a local variable:

float isOk() {
  float vv = 0;
  for (int j=0U; j<N; ++j) {
    float ax = xx-px[j];
    vv+=ax;
  }
  return vv;
}