[Bug rtl-optimization/60651] Mode switching instructions are sometimes emitted in the wrong order

[amylaar at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60651

--- Comment #1 from Jorn Wolfgang Rennecke <amylaar at gcc dot gnu.org> ---
Created attachment 32447
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32447&action=edit
patch

The attached patch implements this aforementioned insertion at the end
of an (initially) empty basic block.
I'm currently bootstrapping/regtesting this on i686-pc-linux-gnu