> 2017-11-17 Daniel Cederman
>
> * config/sparc/sparc.c (fpop_insn_p): New function.
> (sparc_do_work_around_errata): Insert NOP instructions to
> prevent sequences that could trigger the TN-0012 errata for
> GR712RC.
> (pass_work_around_errata::gate): Also test sp
This patch provides a workaround for the errata described in GRLIB-TN-0012.
If the workaround is enabled it will:
* Prevent any floating-point operation from being placed in the
delay slot of an annulled integer branch.
* Place a NOP at the branch target of an integer branch if it is
a float
