[Bug target/59054] Powerpc -O0 -mcpu=power7 generates sub-optimal code to load 0

[meissner at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59054

--- Comment #1 from Michael Meissner <meissner at gcc dot gnu.org> ---
Created attachment 31185
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31185&action=edit
Sample file to show the problem.