[Bug tree-optimization/49795] vectorization of conditional code happens only on local variables

[vincenzo.innocente at cern dot ch]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49795

--- Comment #3 from vincenzo Innocente <vincenzo.innocente at cern dot ch> 2011-07-20 12:32:21 UTC ---
my actual code looks more like this
void loop() {
  for (int i=0; i!=N; ++i) {
    d[i]=a[i]+b[i];
    if (c[i]<0) d[i] = -d[i];
  }
}
where d[i] IS written unconditionally (and does not vectorize either)