[Bug lto/60449] Merging function DECLs discards leaf attribute which causes cfg verifier to fail

[jamborm at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60449

--- Comment #1 from Martin Jambor <jamborm at gcc dot gnu.org> ---
Created attachment 32289
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32289&action=edit
Part one of a testcase