[Bug tree-optimization/68967] Build and test parloops on by default

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68967

--- Comment #4 from vries at gcc dot gnu.org ---
Created attachment 37070
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37070&action=edit
0004-Compile-libgcc-with-ftree-parallelize-loops-0.patch