[Patch, MIPS] Fix PR target/68273, passing args in wrong regs

[Mike Stump]

On Feb 3, 2016, at 2:30 PM, Steve Ellcey <sellcey@imgtec.com> wrote:
> Here is a new patch for PR target/68273.

So this doesn’t fix aarch64, c6x, epiphany, ia64, iq2000, rs6000, rx, sparc, tilegx, tilepro or xtensa.

:-(  That’s one of the problems by having each port copy and paste swaths of code from other ports to express the same thing instead of ports sharing just one copy of code.  My port is also broken in the same way (currently).

I’m curious why the caller of the hook can’t grab the main variant, if it wants.  If it did this, then all the ports are fixed wrt this issue.